TMM-132-01-LM-D-RA-018

FAQFrequently Asked Questions

• Can the Samtec TMM-132-01-LM-D-RA-018 carry 3.2 A on all 63 loaded contacts at the same time? The Samtec TMM-132-01-LM-D-RA-018 is specified at 3.2 A per contact, but the usable total current depends on PCB copper, trace width, solder-joint temperature, ambient temperature, contact spacing, and the connector derating method used in the final assembly. A thermal test or the applicable Samtec current-rating curve should be used before assigning 3.2 A to every loaded position continuously.
• How should I handle the one unpopulated position when routing a 64-position board-to-board interface with the Samtec TMM-132-01-LM-D-RA-018? The Samtec TMM-132-01-LM-D-RA-018 has 64 available positions but only 63 loaded contacts, so one circuit position is electrically absent. The exact vacant location should be confirmed from the supplier drawing or inspection sample before assigning pin numbers, then reflected in the schematic, PCB footprint, cable, and mating connector documentation.
• What mating connector and stack height should I select for the Samtec TMM-132-01-LM-D-RA-018? The Samtec TMM-132-01-LM-D-RA-018 is an unshrouded, 2.00 mm pitch, right-angle male header with a 3.20 mm mating contact length and 3.05 mm post length. The mating receptacle must match the two-row 2.00 mm geometry, contact engagement range, insertion direction, and required board spacing; a precise mated stacking height is not provided, so it must be calculated from the selected receptacle and PCB thickness.
• Is the Samtec TMM-132-01-LM-D-RA-018 suitable for a keyed or blind-mate connection? The Samtec TMM-132-01-LM-D-RA-018 is unshrouded and has push-pull fastening, so it does not provide the polarization and guided entry normally associated with a shrouded or keyed connector. For blind mating, add mechanical guides and an external keying strategy, or select a compatible shrouded connector system after checking alignment tolerance and pin protection.
• Can I use the Samtec TMM-132-01-LM-D-RA-018 for high-speed differential signals? The Samtec TMM-132-01-LM-D-RA-018 is a general 2.00 mm terminal strip, and the supplied data does not specify impedance, crosstalk, insertion loss, return loss, or a high-speed signal rating. It may be usable for moderate-speed signals after evaluating the complete connector, mating interface, via field, and routing, but controlled-impedance or multi-gigabit designs should use a connector family with validated high-frequency performance.
• What PCB footprint and hole size are required for the Samtec TMM-132-01-LM-D-RA-018? The Samtec TMM-132-01-LM-D-RA-018 uses 2.00 mm pitch, two rows, and through-hole right-angle solder termination. The finished hole diameter, pad dimensions, row centerline, courtyard, solder fillet requirements, and the missing-contact position should be taken from the current Samtec recommended PCB layout rather than inferred from the nominal pitch or post length.
• Can the Samtec TMM-132-01-LM-D-RA-018 be wave soldered or selectively soldered? The Samtec TMM-132-01-LM-D-RA-018 is a through-hole, solder-terminated connector and is commonly evaluated with the PCB assembly process used for through-hole components. The actual wave or selective-solder profile, pallet clearance, solder fill, thermal exposure, and board orientation must be validated against the connector drawing and the LCP insulation material before production release.
• Is the Samtec TMM-132-01-LM-D-RA-018 appropriate for outdoor or washdown equipment? The Samtec TMM-132-01-LM-D-RA-018 has no stated ingress-protection rating and is unshrouded, leaving the contacts exposed to contamination and moisture. It is better suited to protected equipment or an enclosure that controls humidity and particulates; outdoor, washdown, or corrosive environments require system-level sealing, conformal protection, or a connector designed with a specified environmental rating.
• How reliable is the Samtec TMM-132-01-LM-D-RA-018 for industrial equipment operating from -55°C to 125°C? The Samtec TMM-132-01-LM-D-RA-018 has a stated operating range of -55°C to 125°C, with phosphor-bronze contacts, gold mating finish, tin posts, and LCP insulation. Long-term reliability also depends on thermal cycling, vibration, mating cycles, solder-joint strain, current-generated heating, and whether the assembly remains within the mating and PCB mechanical tolerances throughout temperature changes.
• Can I replace the Samtec TMM-132-01-LM-D-RA-018 with another Samtec TMM-132 part number? A different Samtec TMM-132 part number may change the loaded-contact pattern, right-angle orientation, contact length, plating, termination style, or mechanical dimensions. The Samtec TMM-132-01-LM-D-RA-018 should only be treated as interchangeable after comparing the complete ordering code, supplier drawing, PCB footprint, mating depth, and electrical derating data.
• Can a 2.54 mm header such as a Samtec TS-series part replace the Samtec TMM-132-01-LM-D-RA-018? A 2.54 mm Samtec TS-series header is generally not a drop-in replacement for the Samtec TMM-132-01-LM-D-RA-018 because the pitch, row spacing, footprint, mating connector, and board routing differ. Such a migration requires a new PCB footprint and compatible receptacle, and it can change the package width, pin numbering, mechanical clearance, and signal spacing.
• Can I substitute a Harwin M20 connector or a Molex 87332 connector for the Samtec TMM-132-01-LM-D-RA-018? A Harwin M20 or Molex 87332 part should not be considered equivalent to the Samtec TMM-132-01-LM-D-RA-018 solely because it is a two-row board connector. The candidate must match the 2.00 mm pitch, row spacing, 63-contact loading pattern, right-angle through-hole geometry, mating contact length, retention method, temperature range, current derating, and connector polarity; otherwise the board, mating assembly, or electrical allocation will require redesign.
• How should I protect the Samtec TMM-132-01-LM-D-RA-018 from accidental short circuits during assembly and servicing? The Samtec TMM-132-01-LM-D-RA-018 is unshrouded, so exposed square pins can contact tools, metal covers, or adjacent conductive hardware. Use enclosure clearance, insulating barriers, service fixtures, and appropriate connector polarization, and inspect for bent or bridged pins after handling before applying power.
• Does the Samtec TMM-132-01-LM-D-RA-018 require special moisture handling before reflow or solder assembly? The Samtec TMM-132-01-LM-D-RA-018 is listed as MSL 1, indicating unlimited floor life under the applicable moisture-sensitivity conditions. The assembly process still needs to control storage, contamination, solderability, and thermal profile, particularly when the connector has been exposed to chemicals, condensation, or repeated temperature cycling.
• Is the Samtec TMM-132-01-LM-D-RA-018 a good choice for frequently disconnected cable assemblies? The Samtec TMM-132-01-LM-D-RA-018 supports board-to-board or cable use and uses a push-pull fastening style, but the supplied specifications do not state a mating-cycle rating or cable strain-relief capability. For frequent service disconnects, verify the rated mating cycles, insertion and extraction force, cable retention method, operator alignment, and mechanical load transferred to the solder joints.