TFM-137-12-LM-D-A-P-TR SAMTEC Connector (Other) In Stock
The TFM-137-12-LM-D-A-P-TR is a SAMTEC high-reliability Tiger Eye terminal strip with 0.050-inch pitch featuring a dual-row 74-pin low-profile surface-mount configuration. It provides dense board-to-board signal interconnects with reduced mating height for space-constrained assemblies. Available in tape-and-reel with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 74
- Lifecycle
- ACTIVE
- Datasheet
- TFM-137-12-LM-D-A-P-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TFM-137-12-LM-D-A-P-TR?
- 0.050-inch (1.27 mm) pitch dual-row 74-pin layout delivering high contact density in a low-profile board-to-board interconnect
- Low-profile (LM) mating height reducing overall PCB stack height for compact avionics, defense, and industrial module designs
- Tape-and-reel packaging enabling automated SMT pick-and-place assembly in high-volume production environments
What is TFM-137-12-LM-D-A-P-TR used for?
The TFM-137-12-LM-D-A-P-TR is engineered for board-to-board signal connections in space-constrained defense, avionics, and industrial electronics where mezzanine card stacking height is critical. Its 74-pin dual-row design at 1.27 mm pitch accommodates multi-bus and differential-pair signal routing in compact module formats. The low-profile mating height suits VITA-standard and similar embedded computing platforms requiring strict dimensional control.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TFM-137-12-LM-D-A-P-TR datasheet?
TFM-137-12-LM-D-A-P-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TFM-137-12-LM-D-A-P-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What distinguishes the low-profile (LM) variant of the TFM-137-12-LM-D-A-P-TR from standard mating height versions?
The LM (low-profile mating) designation on the TFM-137-12-LM-D-A-P-TR indicates a reduced mated stack height compared to the standard TFM series, typically targeting an assembled board separation of approximately 2 mm to 3 mm versus 4 mm to 5 mm for standard versions. This compressed profile is essential for VITA 57 FMC modules, 3U VPX cards, and other embedded computing formats where the inter-board gap is tightly specified to fit within chassis slot dimensions.
How many signal lines can the 74-pin dual-row TFM-137-12-LM-D-A-P-TR support in a mixed-signal design?
With 74 pins in 2 rows at 1.27 mm pitch, the TFM-137-12-LM-D-A-P-TR can carry up to 37 differential pairs for high-speed LVDS or SERDES signals above 1 Gbps per lane, or alternatively 64 single-ended signals plus power and ground returns. Mixed assignments combining 16 differential pairs with 32 single-ended control lines plus 10 power pins are also practical, covering a broad range of sensor, FPGA, and processor module interface requirements.
Which SAMTEC Tiger Eye variants should be compared when selecting between 74-pin and larger pin-count options for a mezzanine design?
When choosing between TFM-137-12-LM-D-A-P-TR (74 pins) and larger options like the TFM-142-12-SM-D-A-P-TR (84 pins) or TFM-150-22-FM-D-A-P-TR (100 pins), the key trade-offs are PCB footprint area, mated height, and contact count. The 74-pin low-profile version saves approximately 4 mm in connector length and reduces stack height by 1 mm to 2 mm versus standard-height 84-pin or 100-pin versions, making it preferable when board area and enclosure height are both constrained.
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