RT0603BRE0730KL

Product Overview – YAGEO RT0603BRE0730KL

YAGEO RT0603BRE0730KL is a thin film surface-mount chip resistor in 0603 inch (1608 metric) package, with the following key parameters:

- Resistance: 30 kΩ

- Tolerance: ±0.1% (code B in the RT series)

- Power rating: 0.1 W (1/10 W) at 70 °C for RT0603

- Technology: Thin film, high precision, high stability

- Series: RT series (high precision, high stability thin film chip resistors)

- Size: 0603 within a size range that spans RT0100, 0201, 0402, 0603, 0805, 1206, 1210, 2010, 2512

- TCR options in the RT series: 5, 10, 15, 25, 50 ppm/°C

RT0603BRE0730KL is a RoHS-compliant component, using halogen free epoxy and lead-free terminations. It is designed for precision signal-path and control applications where resistor accuracy, stability over temperature, and long-term reliability are key selection factors.

Typical application domains mentioned for the RT series, which include RT0603BRE0730KL, are converters, printing equipment, server boards, telecom systems and consumer electronics, where dense PCBs and stable analog or digital reference networks are required.

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2.

Series Positioning and Applications of YAGEO RT0603BRE0730KL in the RT Thin Film Family

YAGEO RT0603BRE0730KL belongs to the RT series of thin film chip resistors, characterized by:

- High precision: tolerances from ±0.01% to ±1%

- Low TCR range: 5 to 50 ppm/°C across the family

- Wide size coverage: 0100 up to 2512

Within this family, RT0603BRE0730KL is a mid-size device optimized for:

- PCB space usage: 0603 footprint for compact layouts

- Precision signal conditioning: 30 kΩ with ±0.1% supports accurate gain-setting and reference division

- Compatibility with automatic assembly lines: standardized 0603 format, tape-and-reel supply

Application areas where RT0603BRE0730KL fits the RT series profile:

- Converters: setting reference voltages and gains in ADC/DAC front-ends where thin film stability supports consistent conversion accuracy over time and temperature.

- Printing equipment: precise analog feedback networks for motor driver control, sensing circuits, and embedded power management.

- Server boards: biasing and termination networks requiring controlled resistance and drift to maintain timing and voltage margins in high-density systems.

- Telecom equipment: stable resistive dividers and monitoring circuits in line interfaces and power modules.

- Consumer devices: compact precision networks in audio, imaging, and power sections where 0603 size is a standard compromise between performance and density.

These uses highlight how RT0603BRE0730KL leverages the RT series’ thin film technology to maintain performance in environments that may see moderate thermal cycling and long operating hours.

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3.

Construction and Materials of YAGEO RT0603BRE0730KL Thin Film Chip Resistor

The internal construction of YAGEO RT0603BRE0730KL follows the generic RT series thin film structure:

- Substrate: high-grade ceramic body providing mechanical strength, dimensional stability and good thermal characteristics.

- Internal electrodes: metal terminations at each end of the ceramic body serve as current entry and exit points.

- Resistive layer: a thin film deposited between the internal electrodes. The nominal resistance of 30 kΩ for RT0603BRE0730KL is achieved by controlling this film’s geometry and material properties.

- Laser trimming: after deposition, the resistive layer is laser cut to achieve the specified resistance with the required precision, enabling the ±0.1% tolerance of RT0603BRE0730KL.

- Protective coating: the resistive element is covered with a protective layer to shield it from environmental influences, improving stability and reliability.

- External terminations: matte tin terminations are applied, optimized for solderability and compatibility with standard lead-free reflow processes.

This construction approach is tailored for high precision and high stability, aligning RT0603BRE0730KL with applications that depend on tight tolerances and controlled long-term drift.

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4.

Electrical Specifications and Performance of YAGEO RT0603BRE0730KL

As a member of the RT series, RT0603BRE0730KL conforms to the family’s electrical characteristic framework. While the datasheet tables are general to the series, the following aspects are directly applicable to RT0603BRE0730KL:

- Resistance value:

- 30 kΩ nominal, represented in the global part number as “30K” with letter K as decimal marker where relevant.

- Tolerance:

- ±0.1%, corresponding to code B in the RT series tolerance code set:

- L = ±0.01%

- P = ±0.02%

- W = ±0.05%

- B = ±0.1%

- C = ±0.25%

- D = ±0.5%

- F = ±1%

- TCR (Temperature Coefficient of Resistance):

- RT0603BRE0730KL belongs to a series offering 5, 10, 15, 25 and 50 ppm/°C options (coded A, B, C, D, E respectively). The “E” in RT0603BRE0730KL indicates 50 ppm/°C.

Series-level notes relevant to RT0603BRE0730KL include:

- E-24 and E-96 resistance series:

- RT0603BRE0730KL uses a 30 kΩ value that falls within the common precision resistor ranges.

- For E-96 and E-24 special cases (10/11/13/15/20/75), the marking rules differ, but the global ordering scheme consistently encodes the value.

- Maximum working voltage:

- Defined at series level via IEC 60115-8, with an upper limit that must be considered alongside calculated rated voltage (see next section).

From a performance standpoint, thin film technology plus ±0.1% tolerance and 50 ppm/°C TCR in RT0603BRE0730KL support:

- Stable gain in amplifier feedback networks.

- Predictable reference ratios in divider chains.

- Reduced error accumulation in multi-resistor networks where many 0603 devices like RT0603BRE0730KL are used in series or parallel.

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5.

Power Rating, Voltage and Thermal Behavior of YAGEO RT0603BRE0730KL

Power handling and thermal derating of RT0603BRE0730KL are governed by the RT series functional description.

Power rating of RT0603BRE0730KL:

- RT0603: 1/10 W (0.1 W) at 70 °C ambient.

- Other RT sizes (for comparison):

- RT0100 = 1/32 W

- RT0201 = 1/20 W

- RT0402 = 1/16 W

- RT0805 = 1/8 W

- RT1206 = 1/4 W

- RT1210 = 1/4 W

- RT2010 = 1/2 W

- RT2512 = 3/4 W

Rated voltage for RT0603BRE0730KL is calculated by:

- V = √(P × R)

- V = √(0.1 W × 30,000 Ω)

- V ≈ √(3,000) ≈ 54.8 V

In practice, the usable continuous working voltage for RT0603BRE0730KL is the lower of:

- This calculated value; and

- The maximum working voltage specified for its size in the RT series electrical characteristics.

Thermal behavior:

- A derating curve (Fig. 6 in the RT series) defines power dissipation vs. ambient temperature:

- Full rated power at 70 °C ambient for RT0603BRE0730KL.

- Above 70 °C, allowable power is reduced linearly until the upper temperature limit in the RT series specification.

Example use case for RT0603BRE0730KL power sizing:

- In a 12 V signal path where RT0603BRE0730KL is used as part of a 30 kΩ pull-up, dissipation is:

- P = V² / R = 144 / 30,000 ≈ 4.8 mW

- This is far below the 0.1 W rating, leaving thermal margin and helping long-term stability.

This illustrates how RT0603BRE0730KL can be reliably used in low- to moderate-voltage networks with considerable safety margin when designed below its rated power and within the specified temperature range.

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6.

Marking, Identification and Ordering for YAGEO RT0603BRE0730KL

Marking and coding are crucial to correctly handling RT0603BRE0730KL from design through manufacturing.

Marking style for RT0603BRE0730KL:

- Size RT0603 follows RT series rules:

- E-24 series (with listed exception values): a short bar under the marking letter for certain values such as 10/11/13/15/20/75.

- E-96 series (including those special values): 3-digit marking.

- RT0603BRE0730KL, as a 30 kΩ precision resistor in 0603 package, uses the RT0603 marking scheme. Actual on-body code is determined by series rules for its resistance and tolerance range.

Global part number structure that includes RT0603BRE0730KL:

Key fields (simplified for the RT series):

1) Size (e.g., RT0603)

2) Tolerance (e.g., B = ±0.1%)

3) Packaging type

4) TCR (A/B/C/D/E = 5/10/15/25/50 ppm/°C respectively)

5) Taping reel code

6) Resistance value (2–4 digits, with R/K/M as decimal marker)

7) Default code

For RT0603BRE0730KL:

- RT = RT series thin film chip resistor

- 0603 = 0603 size

- B = ±0.1% tolerance

- R = packaging/TCR code segment, combined as per series rules

- E = 50 ppm/°C

- 0730K = encodes the resistance value (30 kΩ) with K as decimal notation within the ordering code

- L = default / internal process code element

The RT series also provides PHYCOMP brand I2NC codes and a mapping to global part numbers. For example, a TF221 code can map to RT0603 devices with particular TC, tolerance, and resistance values. RT0603BRE0730KL follows the same global scheme, which simplifies multi-brand or legacy-to-global transitions in BOMs.

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7.

Mounting, Footprint and Packaging of YAGEO RT0603BRE0730KL

Mechanical integration of RT0603BRE0730KL into PCBs depends on footprint, soldering, and packing details.

Footprint and soldering profiles for RT0603BRE0730KL:

- Recommended footprint: provided in the RT series special data sheet “Chip resistors mounting.” RT0603BRE0730KL uses the standard 0603 footprint with recommended pad sizes and spacing to ensure:

- Reliable solder fillet formation.

- Controlled solder joint shape for mechanical and thermal performance.

- Minimization of tombstoning risk in reflow.

- Soldering profile: also detailed in the mounting data sheet. RT0603BRE0730KL is designed for lead-free soldering using appropriate reflow profiles, compatible with its matte tin terminations and halogen free epoxy.

Packing style and quantity for RT0603BRE0730KL:

- RT series provides paper or embossed tape and reel options, summarized in a dedicated “Chip resistors packing” data sheet.

- Packaging type and taping reel codes are embedded in the RT0603BRE0730KL part number structure.

- Series notes include specific exceptions for packing codes, for example:

- 0805 TC50 with 1% in 13" reel uses packing code 02.

- 0603 TC50 with 1% in 13" reel uses packing code 03.

- 2512 and 2010 TC15 in 7" reels use distinct packing codes.

While RT0603BRE0730KL is a 0603 size with ±0.1% tolerance and 50 ppm/°C, its exact tape configuration follows the same family rules, enabling consistent automated pick-and-place handling.

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8.

Reliability, Testing and Qualification of YAGEO RT0603BRE0730KL

RT0603BRE0730KL shares the RT series’ reliability and test framework. The datasheet defines a range of tests and requirements summarized in Table 4 (tests and conditions) and Table 5 (bending for sizes 0100 to 2512), which apply to RT0603BRE0730KL as the 0603 representative.

Key aspects:

- Mechanical robustness:

- Bending tests (Table 5) are specified for all sizes, including RT0603BRE0730KL, to assess resistance to PCB flex and handling.

- Electrical stability:

- Tests cover load life, temperature cycling, and other environmental stresses as per IEC 60115-8 and related standards. RT0603BRE0730KL is qualified within those series limits.

- Environmental compliance:

- RoHS compliant and halogen free, using lead-free process (“LFP” referenced in internal labels), aligning RT0603BRE0730KL with modern environmental and process requirements.

Practical implication:

- In long-life equipment such as server boards or telecom infrastructure, RT0603BRE0730KL can be used in resistive networks where repeated thermal cycling and minor mechanical stresses are expected, with the RT series testing framework supporting predictable performance over time.

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9. Design Use Cases for YAGEO RT0603BRE0730KL in Real-World Systems

By combining its 30 kΩ value, ±0.1% tolerance, 50 ppm/°C TCR and 0603 footprint, RT0603BRE0730KL can be mapped to several typical design roles.

RT0603BRE0730KL in converter circuits:

- Use as part of ADC input scaling:

- For instance, in a 3.3 V ADC input where a sensor outputs up to 10 V, RT0603BRE0730KL (30 kΩ) can be paired with another RT0603 thin film resistor to form a stable divider. The tight tolerance supports consistent calibration across production lots.

- In DAC output filtering or feedback networks where resistance accuracy directly influences gain and output linearity.

RT0603BRE0730KL in printing equipment and motors:

- Used in current-sense amplifier networks, where the 30 kΩ resistor is part of the gain-setting pair around an op-amp. The ±0.1% tolerance of RT0603BRE0730KL helps maintain the intended motor speed profile and torque control across units.

RT0603BRE0730KL in server board and telecom bias networks:

- Pull-up or bias networks for voltage monitoring ICs and control lines:

- RT0603BRE0730KL as a 30 kΩ pull-up can provide consistent bias currents.

- Precision reference dividers feeding supervisory ICs; the thin film stability and low TCR reduce drift in threshold voltages with ambient changes.

RT0603BRE0730KL in consumer equipment:

- Audio circuits:

- In gain-setting networks for analog audio paths, 30 kΩ thin film resistors like RT0603BRE0730KL can help maintain channel-to-channel matching.

- Sensor front-ends:

- Used in bias networks for analog sensors, ensuring readings remain predictable over the device lifetime.

In each case, RT0603BRE0730KL’s placement in a design builds on the RT series’ thin film performance, environmental compliance and 0603 form factor to align signal integrity, PCB density and manufacturing standardization.

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10. Conclusion – Evaluating YAGEO RT0603BRE0730KL for High-Precision Designs

YAGEO RT0603BRE0730KL is a 30 kΩ thin film chip resistor in 0603 size, offering ±0.1% tolerance and 50 ppm/°C TCR within the RT high precision, high stability series.

Key characteristics that define RT0603BRE0730KL:

- Thin film construction on a high-grade ceramic body with laser trimming for precision.

- 0.1 W rating at 70 °C, with rated voltage determined by V = √(P × R), subject to the series maximum working voltage.

- RoHS compliant and halogen free materials with lead-free matte tin terminations.

- Integration into a broad RT series portfolio spanning multiple sizes, tolerance levels and TCR options, simplifying cross-value and cross-size standardization.

With general-purpose application coverage across converters, printing equipment, server boards, telecom and consumer devices, RT0603BRE0730KL can be applied wherever a compact 30 kΩ precision resistor is suitable, particularly when long-term stability and consistent production behavior are desired.

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Frequently Asked Questions (FAQ)

Q1. What is the exact resistance, tolerance and power rating of YAGEO RT0603BRE0730KL?

A1. YAGEO RT0603BRE0730KL has a nominal resistance of 30 kΩ, a tolerance of ±0.1% (code B in the RT series) and a power rating of 0.1 W (1/10 W) at 70 °C ambient for its 0603 package.

Q2. What temperature coefficient of resistance (TCR) does YAGEO RT0603BRE0730KL use?

A2. The RT series uses letter codes A, B, C, D, E for TCR values of 5, 10, 15, 25 and 50 ppm/°C respectively. In RT0603BRE0730KL, the letter “E” indicates that it is a 50 ppm/°C device.

Q3. How is the maximum working voltage for YAGEO RT0603BRE0730KL determined?

A3. For RT0603BRE0730KL, the rated voltage is calculated using V = √(P × R). With P = 0.1 W and R = 30 kΩ, V ≈ 54.8 V. The usable continuous working voltage is the lower of this calculated value and the maximum working voltage specified for the RT0603 size in the RT series electrical characteristics, in accordance with IEC 60115-8.

Q4. Is YAGEO RT0603BRE0730KL compliant with RoHS and halogen free requirements?

A4. Yes. The RT series, including RT0603BRE0730KL, is RoHS compliant and uses halogen free epoxy. The terminations are lead-free, and internal labels reference “Lead Free Process” (LFP).

Q5. What kind of construction is used inside YAGEO RT0603BRE0730KL?

A5. RT0603BRE0730KL uses a high-grade ceramic body with internal metal electrodes at each end. A thin film resistive layer is deposited between them and laser trimmed to achieve the 30 kΩ ±0.1% value. This resistive layer is covered by a protective coating, and matte tin external terminations are applied for soldering.

Q6. What marking format is used on the body of YAGEO RT0603BRE0730KL?

A6. RT0603BRE0730KL follows the RT0603 marking rules. For RT0603 devices, E-24 series values (with certain exceptions) use specific notation including a short bar under the marking letter for some values, while E-96 series values use 3-digit markings. The exact printed code reflects the resistance and series rules; RT0603BRE0730KL, as a 30 kΩ precision device, is marked accordingly as a 0603 thin film resistor.

Q7. How is the YAGEO RT0603BRE0730KL part number structured and what does each segment mean?

A7. RT0603BRE0730KL follows the RT global part number structure:
- RT = RT thin film series
- 0603 = size code (0603 inch / 1608 metric)
- B = ±0.1% tolerance
- R and E within the code: packaging type and TCR (E = 50 ppm/°C)
- 0730K encodes the resistance value 30 kΩ, using K as decimal marker in the series scheme
- L is a default code element
This structure allows consistent decoding of size, tolerance, TCR, packaging and resistance.

Q8. What applications are recommended for YAGEO RT0603BRE0730KL?

A8. RT0603BRE0730KL is positioned for general-purpose precision use within the RT series target domains: converters, printing equipment, server boards, telecom systems and consumer electronics. It is suitable for gain-setting networks, reference dividers, bias networks and similar precision roles in these equipment categories.

Q9. Can YAGEO RT0603BRE0730KL be used in high reliability or life-critical systems?

A9. The general statement in the YAGEO documentation is that products are designed for general purpose applications under normal operation. For applications requiring especially high reliability, such as aerospace, atomic energy, aviation, medical devices, safety equipment, and other uses where failure could result in injury or serious damage, YAGEO recommends contacting them and does not recommend using commercial or automotive grade parts like RT0603BRE0730KL for such high-reliability or manned spaceflight applications.

Q10. What mounting and reflow guidelines apply to YAGEO RT0603BRE0730KL?

A10. RT0603BRE0730KL follows the RT series “Chip resistors mounting” guidelines. This document provides recommended 0603 pad geometry and soldering profiles for lead-free reflow. Adhering to these guidelines helps maintain solder joint reliability and minimize assembly issues such as tombstoning.

Q11. How is YAGEO RT0603BRE0730KL supplied in terms of tape and reel packaging?

A11. RT0603BRE0730KL is supplied in tape and reel as per the RT series packaging definitions in the “Chip resistors packing” data sheet. The part number encodes packaging type and reel size via dedicated fields, and the series also notes certain packing code exceptions for specific size/TCR/tolerance combinations. This ensures compatibility with automated pick-and-place equipment.

Q12. What tests and qualifications does YAGEO RT0603BRE0730KL undergo?

A12. RT0603BRE0730KL is covered by the RT series test program summarized in Table 4 (tests, conditions, requirements) and Table 5 (bending performance for sizes 0100 to 2512). These tests include electrical and environmental evaluations and mechanical bending assessment, following IEC-related specifications, to qualify the resistor’s performance and robustness.

Q13. How should derating be applied to YAGEO RT0603BRE0730KL for higher ambient temperatures?

A13. RT0603BRE0730KL uses the RT series derating curve: full 0.1 W power is available at 70 °C ambient. Above 70 °C, the allowable power decreases linearly according to the maximum dissipation vs. ambient temperature curve (Fig. 6 in the RT series documentation). Using the resistor below its derated power at the actual operating temperature supports stable performance.

Q14. Is YAGEO RT0603BRE0730KL part of the E-24 or E-96 resistance series, and does that matter in practice?

A14. RT0603BRE0730KL is a 30 kΩ resistor, which aligns with standard precision series usage in the RT family. The datasheet specifies that both E-24 and E-96 series are supported, with special marking treatment for some E-24 values. In practice, this means RT0603BRE0730KL can coexist easily in designs that rely on standard E-series values and marking conventions, simplifying replacement and value planning across the RT portfolio.