SQT-121-03-STL-D SAMTEC Connector (Other) In Stock
SAMTEC SQT-121-03-STL-D is a SEARAY high-speed board-to-board array connector. It provides 42 positions on a .050 in pitch open-pin-field terminal. From inquiry pricing, request current stock for worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 42
- Lifecycle
- ACTIVE
- Datasheet
- SQT-121-03-STL-D Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SQT-121-03-STL-D?
- 42-position SEARAY open-pin-field array terminal for dense board-to-board interconnects
- .050 in pitch contact layout supports compact high-speed mezzanine and stacking designs
- STL tail configuration supports production purchasing and automated assembly planning
- SAMTEC connector family with datasheet-backed SEAM mechanical configuration
What is SQT-121-03-STL-D used for?
This connector is used in compact mezzanine, communications, test, and embedded control boards that need dense board-to-board signal routing. It fits production builds where 42 positions, a .050 in pitch, and STL tail configuration help simplify high-density PCB assembly.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the SQT-121-03-STL-D datasheet?
SQT-121-03-STL-D Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for SQT-121-03-STL-D?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
Which contact and pitch specifications define SQT-121-03-STL-D?
The documented configuration uses 42 contacts on a 1.27 mm pitch. SAMTEC SQT-121-03-STL-D is a SEARAY high-speed board-to-board array connector. It provides 42 positions on a .050 in pitch open-pin-field terminal. From inquiry pricing, request current stock for worldwide shipping. Engineers should verify both dimensions against the current manufacturer drawing before approving the footprint.
How should designers check PCB and mating compatibility for SQT-121-03-STL-D?
For PCB compatibility, match the 1.27 mm mating pitch and 42 contact configuration, then confirm mounting style, row orientation, polarization, stack height, and the intended mating connector before board release.
Which board-interconnect applications suit SQT-121-03-STL-D?
In board-to-board and embedded-module applications, its 42 signal positions and 1.27 mm spacing support compact routing. Production teams should also confirm lifecycle status, packaging, assembly method, and sourcing availability.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 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
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”
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