Product Overview – TDK-Lambda PSS6-24-12
The TDK-Lambda PSS6-24-12 is an isolated DC-DC converter rated at 6 W output power. It delivers a single 12 V output at up to 500 mA from a nominal 24 V input range of 18 V to 36 V. The device belongs to the PSS/PSD Series of ultra-compact DC-DC converters spanning 1.5 W to 12 W power levels.
PSS6-24-12 is offered as a self-contained, open-frame module with input-to-output isolation and a compact footprint suited to dense board layouts. The design is RoHS compliant and backed by a 5-year warranty within the series context, illustrating a focus on long-term deployment in industrial and embedded environments.
Key characteristics of TDK-Lambda PSS6-24-12 include:
- Isolated DC-DC converter module
- 18 V–36 V input range (nominal 24 V class)
- Single 12 V output at 6 W (500 mA)
- Compact footprint and low profile
- Through-hole or SMT versions within the PSS/PSD family context
- Input-output isolation for safety and noise management
By combining isolation with small size and standardized input/output classes, the TDK-Lambda PSS6-24-12 supports a wide variety of low-power distributed power architectures.
Series Context and Positioning – TDK-Lambda PSS/PSD Series and PSS6-24-12
The TDK-Lambda PSS6-24-12 sits within the broader PSS/PSD Series of ultra-compact DC-DC converters, specified from 1.5 W to 12 W with both single and dual outputs. Within this family, converters support:
- Input voltages: 5 V, 12 V, 24 V, and 48 V classes
- Output voltages: 3.3 V to 30 V for single outputs and ±12 V to ±15 V for dual outputs
The PSS6-24-12 specifically targets 24 V input systems and provides a 12 V single output at 6 W. This fits applications that require an intermediate or local 12 V rail isolated from a 24 V bus, commonly found in industrial control, communication modules, or sensor interfaces.
PSS models cover single-output needs like those addressed by PSS6-24-12, while PSD models within the same TDK-Lambda PSS/PSD Series handle higher output ranges (e.g., up to 24/30 V output when connected appropriately across +Vout and -Vout and leaving “common” unconnected). This shared platform allows designers to apply similar footprints and design rules across a range of input/output voltage combinations and power levels.
The PSS6-24-12 also reflects shared family features such as open-frame construction (no potting), multiple input voltage configurations within the series, and standard mechanical outlines like the PSS1R5 and PSS1R5/S drawings given as reference for the smaller models. Although PSS6-24-12 differs in power rating, it aligns with the same mechanical and electrical design philosophy.
Electrical Characteristics of TDK-Lambda PSS6-24-12
The TDK-Lambda PSS6-24-12 delivers regulated power conversion from a 24 V-class bus. Its key electrical characteristics are framed by the PSS/PSD Series specifications:
Input characteristics of TDK-Lambda PSS6-24-12
The PSS6-24-12 operates from an 18 V–36 V DC input range. This allows use in nominal 24 V systems that may experience tolerances and transient variations, such as industrial bus rails. Electrical behavior is defined within the broader PSS Series input options:
- Nominal input: 24 V class
- Allowed range: 18 V–36 V
- Compatibility with 24 V distributed power architectures
In practice, PSS6-24-12 can sit directly on a 24 V backplane or bus, with upstream supply tolerances and variations absorbed within the module’s specified operating range. This enables flexible deployment in systems where the primary supply may fluctuate under load or during startup.
Output characteristics of TDK-Lambda PSS6-24-12
The output of the TDK-Lambda PSS6-24-12 is a single 12 V rail, specified at up to 6 W:
- Output voltage: 12 V DC
- Output current: up to 500 mA
- Output power: 6 W
The PSS/PSD Series also provides output voltage adjustment capability, enabling fine-tuning of the output level. In the context of PSS6-24-12, this means the 12 V output can be trimmed slightly to match system requirements or compensate for voltage drops in the distribution path, subject to the adjustment range detailed in the series installation manual.
Isolation and protection in TDK-Lambda PSS6-24-12
PSS6-24-12 incorporates input-output isolation, a fundamental feature of the PSS/PSD Series. This isolation serves several roles:
- Breaking ground loops between input and output domains
- Enhancing safety separation between primary and secondary circuits
- Mitigating noise coupling from the input bus into sensitive load circuits
By using an isolated topology, the TDK-Lambda PSS6-24-12 can power subsystems that must remain galvanically separated from the main bus—for example, I/O modules interfacing to external field devices.
The series datasheet refers to the installation manual for detailed test methods and parameters, including efficiency, line and load regulation, and transient response. These parameters frame how PSS6-24-12 will behave under real load conditions and during system events such as hot-plug, load step changes, or bus disturbances.
Mechanical Design and Mounting Options for TDK-Lambda PSS6-24-12
The TDK-Lambda PSS6-24-12 shares the mechanical design philosophy of the PSS/PSD Series: compact footprint, low profile, and self-contained open-frame construction.
Form factor and layout for TDK-Lambda PSS6-24-12
The PSS/PSD Series offers ultra-compact footprints, with outline drawings shown for PSS1R5 and PSS1R5/S as examples. While PSS6-24-12 differs in power rating, it adheres to the family’s approach:
- Minimal board area use
- Low profile suitable for height-constrained designs
- Pin-based interconnect to simplify PCB layout
This form factor assists in designs where multiple DC-DC converters must be placed on a single board, such as multi-channel control systems or modular interface cards.
Mounting options for TDK-Lambda PSS6-24-12
Within the PSS/PSD Series, modules are available in through-hole or SMT versions. In the context of PSS6-24-12, this provides flexibility:
- Through-hole versions suit robust industrial boards or lower-volume assemblies, simplifying manual handling and rework.
- SMT versions support automated assembly lines and high-density layouts, benefiting systems with strict size and manufacturing constraints.
Open-frame construction of TDK-Lambda PSS6-24-12
The TDK-Lambda PSS6-24-12, like other PSS/PSD Series devices, is open frame, meaning it has no potting compound:
- Weight is reduced compared to potted modules.
- Heat is dissipated through exposed components and the PCB.
- Inspection and some service activities are easier, as components are visible.
From an integration perspective, PSS6-24-12’s open-frame nature influences how airflow and board-level thermal design are managed, particularly in higher ambient temperature installations.
Thermal and Reliability Considerations in TDK-Lambda PSS6-24-12 Deployments
The TDK-Lambda PSS6-24-12 is designed within a family that targets 5-year warranty coverage, signaling an emphasis on long-term reliability in industrial environments.
Thermal behavior of TDK-Lambda PSS6-24-12
While specific thermal curves are supplied in the installation manual, several implications follow from the PSS/PSD Series design:
- Open-frame construction allows PSS6-24-12 to exchange heat with ambient air directly.
- Compact size localizes heat sources, making PCB copper areas and airflow paths relevant to temperature management.
- Operation at full 6 W load is expected within defined ambient ranges provided by the series documentation.
For example, in a control cabinet with limited airflow, using PSS6-24-12 at or close to 6 W may require attention to board copper pours under the module and overall enclosure ventilation, guided by the temperature derating data in the manual.
Reliability aspects of TDK-Lambda PSS6-24-12
The 5-year warranty statement for the TDK-Lambda PSS/PSD Series frames the PSS6-24-12 as suited to continuous operation in:
- Industrial controllers and machine interfaces
- Embedded systems with 24/7 requirements
- Applications where maintenance access may be infrequent
Reliability is influenced by proper use within specified limits—input range, environmental conditions, and load profiles—outlined in the installation documentation. Following the recommended test methods and application notes for PSS6-24-12 supports consistent field performance.
Application Scenarios for TDK-Lambda PSS6-24-12 in Industrial Systems
The TDK-Lambda PSS/PSD Series targets key industrial market segments, and PSS6-24-12’s 24 V to 12 V, 6 W profile fits several typical use cases.
Distributed 24 V systems using TDK-Lambda PSS6-24-12
In factory automation, a 24 V bus often supplies numerous modules and sensors. PSS6-24-12 can be used to:
- Derive a local isolated 12 V rail from the main 24 V bus for communication modules, PLC I/O, or sensor signal conditioning.
- Power small subsystems such as isolated measurement circuits that must remain galvanically separated from system ground.
For example, a compact I/O module on a DIN-rail controller might employ multiple PSS6-24-12 converters—each powering a group of isolated channels—while sharing the same 24 V backplane.
Embedded and communication modules with TDK-Lambda PSS6-24-12
Many communication and embedded boards require isolated 12 V rails to supply analog front-ends or RF circuits. PSS6-24-12 offers:
- A 6 W budget that can support multi-stage regulation (e.g., 12 V to 5 V, 3.3 V point-of-load regulators) on an isolated domain.
- Input-output isolation to reduce noise coupling from a noisy 24 V supply into sensitive signal paths.
Instrumentation and sensor applications of TDK-Lambda PSS6-24-12
Instrumentation often requires:
- Separation between measurement ground and system ground
- Stable 12 V power for transducers, signal conditioners, or isolated amplifiers
PSS6-24-12, by delivering isolated 12 V power from a 24 V bus, supports this separation. Multiple PSS6-24-12 units can be used to provide separate isolated rails for different measurement channels, helping to reduce cross-channel interference.
Design and Integration Guidelines for TDK-Lambda PSS6-24-12
Integrating the TDK-Lambda PSS6-24-12 involves electrical, mechanical, and layout considerations consistent with the PSS/PSD Series documentation.
Input and output design with TDK-Lambda PSS6-24-12
Key integration steps include:
- Ensure the 24 V bus stays within the specified 18 V–36 V range for PSS6-24-12 under all operating conditions.
- Provide input filtering and decoupling according to the series application notes to manage conducted noise and transient response.
- Use the output voltage adjustment feature, where needed, to fine-tune the 12 V output of PSS6-24-12 to match system requirements.
For instance, if a load sits at the far end of a harness and experiences a small voltage drop, PSS6-24-12’s adjustable output can be set slightly above 12 V (within allowed range) so that the load sees approximately 12 V.
PCB layout and mechanical integration of TDK-Lambda PSS6-24-12
When placing PSS6-24-12 on the PCB:
- Follow recommended pin spacing and footprint dimensions from the series outline drawings and installation manual.
- Reserve copper areas underneath and around PSS6-24-12 to assist with heat spreading.
- In SMT variants, respect reflow profiles compatible with the PSS/PSD Series packaging.
Isolation clearances for TDK-Lambda PSS6-24-12
PSS6-24-12 includes input-output isolation. PCB layout should:
- Maintain appropriate creepage and clearance distances around isolated pins.
- Avoid routing sensitive signal traces beneath PSS6-24-12 in ways that may compromise isolation paths or increase coupling.
These measures align with the isolation test methods and safety practices referenced in the PSS/PSD Series installation materials.
Options and Related Products within the TDK-Lambda PSS/PSD Family for PSS6-24-12 Designs
The TDK-Lambda PSS6-24-12 can be combined or alternated with other PSS/PSD Series devices to address a variety of power needs within the same system.
Power range and variants complementing TDK-Lambda PSS6-24-12
The PSS/PSD Series spans:
- Power levels from 1.5 W (PSS1R5) up to 12 W
- Single outputs (PSS) and dual outputs (PSD)
If a design using PSS6-24-12 requires additional isolated rails with different power levels, smaller modules like PSS1R5 can be used for low-power channels, while higher-power variants cover more demanding loads. This common series approach simplifies qualification and spare parts management.
Output voltage options related to TDK-Lambda PSS6-24-12
Beyond the 12 V output of PSS6-24-12, the series supports:
- Single outputs from 3.3 V to 30 V
- Dual outputs of ±12 V and ±15 V
For applications that need higher voltage outputs, the PSD models can be connected across +Vout and -Vout (with the common pin left unconnected) to achieve up to 24 V or 30 V outputs, according to the series note. This can complement PSS6-24-12 when a design requires both isolated 12 V and higher-voltage rails from the same product family.
Warranty and compliance context of TDK-Lambda PSS6-24-12
PSS6-24-12 benefits from:
- A RoHS compliant design aligned with global environmental regulations.
- A 5-year warranty framework in the PSS/PSD Series, supporting long deployment cycles.
These factors contribute to lifecycle planning when choosing PSS6-24-12 as part of a broader power architecture.
Conclusion – Evaluating TDK-Lambda PSS6-24-12 in New and Existing Designs
The TDK-Lambda PSS6-24-12 provides a compact, isolated 6 W DC-DC solution for 24 V systems requiring a regulated 12 V output. Its integration within the PSS/PSD Series framework ensures consistent mechanical and electrical behavior across a range of power and voltage options, enabling standardization in distributed power architectures.
With a wide 18 V–36 V input range, isolated 12 V output, open-frame construction, and family-level support for through-hole and SMT assembly, PSS6-24-12 fits industrial control, instrumentation, and embedded applications where board space, isolation, and long-term operation are key design factors. The combination of isolation, adjustability, and compact form factor allows PSS6-24-12 to serve as both a local power source and a building block in more complex power distribution schemes.
Careful adherence to the PSS/PSD Series installation manual—covering test methods, thermal management, layout, and application notes—enables robust and predictable deployment of PSS6-24-12 in both new designs and upgrades to existing systems.
Frequently Asked Questions (FAQ) – TDK-Lambda PSS6-24-12
- Q1. What is the input voltage range of the TDK-Lambda PSS6-24-12?
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- A1. The TDK-Lambda PSS6-24-12 is a 24 V class DC-DC converter designed to operate from an 18 V–36 V DC input range. This range covers typical tolerances and variations of a nominal 24 V industrial bus.
- Q2. What output power and current does the TDK-Lambda PSS6-24-12 provide?
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- A2. The TDK-Lambda PSS6-24-12 delivers a single 12 V output with up to 6 W of power, corresponding to a maximum output current of 500 mA under rated conditions.
- Q3. Is the output voltage of the TDK-Lambda PSS6-24-12 adjustable?
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- A3. Yes. Within the PSS/PSD Series, including the PSS6-24-12, output voltage adjustment is supported. The exact adjustment range and recommended implementation are detailed in the series installation manual and application notes, allowing fine tuning of the nominal 12 V output.
- Q4. Does the TDK-Lambda PSS6-24-12 provide input-to-output isolation?
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- A4. Yes. The PSS6-24-12 includes input-output isolation, in line with the PSS/PSD Series design. This galvanic isolation helps break ground loops, enhance safety separation between primary and secondary circuits, and reduce noise coupling between the 24 V bus and the 12 V load domain.
- Q5. What form factors are available for TDK-Lambda PSS6-24-12 within the PSS/PSD Series?
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- A5. The PSS/PSD Series offers both through-hole and SMT versions. The TDK-Lambda PSS6-24-12 is aligned with this approach, allowing selection of the mounting style that best matches the assembly process—through-hole for robust or lower-volume boards and SMT for high-density, automated production.
- Q6. What is the physical construction of the TDK-Lambda PSS6-24-12 module?
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- A6. The TDK-Lambda PSS6-24-12 is an open-frame DC-DC converter, meaning it is not potted. Components are exposed, which aids in heat dissipation through airflow and PCB copper and allows visual inspection. This aligns with the open-frame design noted for the PSS/PSD Series.
- Q7. Is the TDK-Lambda PSS6-24-12 RoHS compliant?
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- A7. Yes. The PSS6-24-12 follows the RoHS compliant design approach of the PSS/PSD Series, supporting use in applications where compliance with hazardous substance restrictions is required.
- Q8. What warranty is associated with the TDK-Lambda PSS6-24-12?
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- A8. The PSS6-24-12 falls under the 5-year warranty framework described for the TDK-Lambda PSS/PSD Series. This supports long-term deployments in systems where converters are expected to operate for extended periods without replacement.
- Q9. How does the TDK-Lambda PSS6-24-12 fit into a 24 V industrial power architecture?
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- A9. In a 24 V industrial architecture, the PSS6-24-12 can be connected directly to the 24 V bus (18 V–36 V range) to provide an isolated 12 V, 6 W rail. It can power local circuitry, isolated I/O channels, or intermediate regulators, and multiple PSS6-24-12 modules can be distributed across a system to create several isolated 12 V domains.
- Q10. Can the TDK-Lambda PSS6-24-12 be used alongside other PSS/PSD Series models in the same system?
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- A10. Yes. The PSS6-24-12 can be used together with other PSS/PSD Series converters that provide different power levels or output voltages, such as 3.3 V, 5 V, or dual ±12 V/±15 V outputs. This allows a system to standardize on a single family while covering multiple rails and power requirements.
- Q11. How is the TDK-Lambda PSS6-24-12 integrated in SMT and through-hole assemblies?
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- A11. In through-hole assemblies, the PSS6-24-12 uses pin-based connections that are soldered through the PCB, suitable for robust boards and manual or wave soldering processes. In SMT versions within the series context, the module is placed and soldered using standard reflow processes, following footprint and thermal recommendations in the installation manual.
- Q12. What documentation should be consulted when designing with the TDK-Lambda PSS6-24-12?
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- A12. For PSS6-24-12, the installation manual and application notes of the PSS/PSD Series provide the detailed specifications, test methods, thermal derating data, recommended input/output circuitry, and layout guidelines needed to complete a reliable design.
- Q13. Is the TDK-Lambda PSS6-24-12 suitable for dual-output configurations?
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- A13. The TDK-Lambda PSS6-24-12 itself is a single-output 12 V converter. Dual outputs are available in PSD models within the PSS/PSD Series. For higher output voltages (such as 24 V or 30 V) using dual-output PSD devices, one can connect across +Vout and -Vout and leave the “common” pin unconnected, as noted in the series documentation. This approach does not apply directly to the single-output PSS6-24-12.
- Q14. What are typical applications that benefit from the isolation of TDK-Lambda PSS6-24-12?
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- A14. Typical uses include isolated sensor interfaces, communication modules with separated grounds, PLC and industrial I/O channels, and instrumentation circuits where the measurement ground must be independent of the main system ground. In each case, PSS6-24-12 provides an isolated 12 V rail derived from a 24 V bus, supporting noise reduction and safety separation.
- Q15. How does the TDK-Lambda PSS6-24-12 relate to the “Not Recommended For New Designs” note in the series?
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- A15. The PSS/PSD Series datasheet includes a “Not Recommended For New Designs” statement. This indicates that, at the series level, newer alternatives may be preferred for future designs. When considering PSS6-24-12, existing designs and maintenance of installed systems may continue to use the module, while new developments should review current product roadmaps and the latest documentation from the manufacturer to select the most appropriate device.
