TSM-121-04-TM-DH-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC TSM-121-04-TM-DH-A-K-TR is a 42-position, 0.100" pitch dual-row surface mount terminal strip with through-mount termination and tape-and-reel packaging for automated assembly. Features gold-plated contacts for reliable signal integrity in high-cycle board-to-board applications. Available from stocking distributors with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 42
- Lifecycle
- ACTIVE
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TSM-121-04-TM-DH-A-K-TR?
- 42 positions at 0.100" pitch in a dual-row layout for versatile board-to-board connectivity
- Through-mount (TM) termination style provides enhanced mechanical stability during reflow soldering
- Tape-and-reel (TR) packaging enables high-volume automated pick-and-place assembly
- Gold-plated contacts deliver low contact resistance and long mating cycle durability
What is TSM-121-04-TM-DH-A-K-TR used for?
The TSM-121-04-TM-DH-A-K-TR is suited for industrial control boards, embedded computing modules, and backplane interconnect systems requiring reliable 42-pin dual-row header connections at 0.100" pitch. Its through-mount termination improves solder joint integrity, making it a preferred choice for harsh-environment applications subject to vibration or thermal cycling. The tape-and-reel packaging streamlines integration into high-volume SMT production lines.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TSM-121-04-TM-DH-A-K-TR datasheet?
TSM-121-04-TM-DH-A-K-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TSM-121-04-TM-DH-A-K-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What does the TM suffix indicate on the TSM-121-04-TM-DH-A-K-TR, and why does it matter for PCB assembly?
The TM suffix stands for Through-Mount termination, meaning the connector pins pass through the PCB and are soldered from the opposite side. This provides 42 solder joints with superior mechanical retention compared to surface-only SMT termination, particularly useful in applications subject to 0.100" pitch connector stress or vibration.
How does the TSM-121-04-TM-DH-A-K-TR compare in pin count to other TSM series parts for backplane use?
The TSM-121-04-TM-DH-A-K-TR provides 42 positions in a dual-row 0.100" pitch format. For designs needing more I/O, the TSM-126 (52 positions) or TSM-150 (100 positions) variants scale up, while the TSM-110 (20 positions) offers a smaller footprint — all sharing the same 0.100" pitch mating interface.
Which system designs typically use a 42-position 0.100" pitch dual-row terminal strip like the TSM-121-04-TM-DH-A-K-TR?
A 42-position 0.100" pitch dual-row terminal strip is commonly used in SBC (single-board computer) expansion interfaces, FPGA carrier boards, PLC backplanes, and industrial sensor hubs that route 42 mixed signal and power lines between stacked PCBs within a standard 2.54 mm pitch grid.
Related Guides
How to Choose an Indicator LED: TLMG1100-GS08 Selection Guide
Select TLMG1100-GS08 and evaluate four indicator LED candidates through optical, electrical, footprint, and sourcing checks.
Nov 5, 2026
150141YS73100 Yellow LED Indicator Design and Validation Guide
Design and validate a 150141YS73100 yellow indicator with current-limit calculations, GPIO checks, PWM control, and enclosure visibility tests.
Nov 5, 2026
How to Choose an LMG1020YFFR GaN Gate Driver: Selection and Sourcing Guide
Compare LMG1020 and LMG1210 circuit roles, gate-drive requirements, ordering codes, and sourcing evidence before approving a GaN driver.
Nov 4, 2026
150141YS73100 LED Selection and Procurement Guide
Evaluate 150141YS73100 and four related LEDs using optical, electrical, mechanical, and sourcing checks before production approval.
Nov 4, 2026
Why Buy from FindMyChip
About SAMTEC
SAMTEC is a leading electronic component manufacturer. FindMyChip sources SAMTEC ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Response time is incredible — usually under 4 hours. They understand that production lines can't wait.”
You May Also Like
10214-6212PC
3M
Connector
1778573
Phoenix Contact
Connector
5227222-3
TE Connectivity
Connector
S4B-XH-SM4-TB(LF)(SN)
JST (JAPAN SOLDERLESS TERMINALS)
Connector
185226-2
TE Connectivity
Connector
0533980571
Molex
Connector
0360-0-15-01-34-27-10-0
Mill-Max
Connector
7850-0006PR
3M
Connector
AVB 1,5/2/12
BLOCK
Connector
N3764-5002RB
3M
Connector
N3627-6002RB
3M
Connector
N3627-5002RB
3M
Connector
N3440-6002RB
3M
Connector
929715-03-36-I
3M
Connector
929667-02-36-I
3M
Connector
929665-04-36-I
3M
Connector
929665-02-36-I
3M
Connector
929647-04-36-I
3M
Connector
929647-03-36-I
3M
Connector
7834-0006PR
3M
Connector
7826-0006PR
3M
Connector
7820-0006PR
3M
Connector
3440-5002
3M
Connector
3433-5302
3M
Connector