SQT-121-03-L-D SAMTEC Connector (Other) In Stock

SQT-121-03-L-D is a SAMTEC PCB socket connector. Key specs include 42 pins, 0.158 inch pitch, and -55°C to 125°C. From inquiry stock with worldwide shipping support.

ACTIVEConnectorVerified Jun 2026
Package / Visual Reference
SQT-121-03-L-DOther
Quick Facts
Manufacturer
SAMTEC
Package
Other
Pin Count
42
Lifecycle
ACTIVE
Category
Connector
Price
From $1.9902(MOQ 25)
Temp Range
-55.0°C to 125.0°C
RoHS
Compliant
Lead Time
3–7 business days
Shipping
DHL Express · Worldwide

Key Features

  • 42 pins PCB socket connector configuration for controlled PCB matching
  • 0.158 inch pitch supports layout and sourcing validation
  • -55°C to 125°C documented for engineering review
  • manufacturer package identification helps buyers verify approved footprints
  • -55°C to 125°C operating context for environmental screening
  • SAMTEC SQT-121-03-L-D ordering identity for BOM-controlled procurement

Applications

SQT-121-03-L-D is used in board-to-board interconnects, cable assemblies, embedded controller modules, and industrial electronics that need reliable mating contacts. Buyers specify it for production PCB builds, repair programs, and approved alternate sourcing where the original manufacturer part number must match.

Specifications

Pbfree CodeYes
Factory Lead Time4 Weeks, 1 Day
YTEOL8
Additional FeatureFLEXYZ, TIGER BUY CONTACT
Body Breadth0.158inch
Body Depth0.25inch
Body Length1.671inch
Body/Shell StyleSOCKET
Connector TypeBOARD CONNECTOR
Contact Finish MatingGOLD
Contact Finish TerminationTin (Sn) - with Nickel (Ni) barrier
Contact GenderFEMALE
Contact MaterialPHOSPHOR BRONZE
Contact PatternRECTANGULAR
Contact Resistance10
Contact StyleSQ PIN-SKT
DIN ConformanceNO
Durability100Cycles
Filter FeatureNO
IEC ConformanceNO
Insertion Force-Max1.112N
Insulator ColorBLACK
Insulator MaterialLIQUID CRYSTAL POLYMER
JESD-609 Codee3
MIL ConformanceNO
Mating Contact Pitch0.079inch
Mating Contact Row Spacing0.079inch
Mating InformationMULTIPLE MATING PARTS AVAILABLE
Mixed ContactsNO
Mounting Option 1LOCKING
Mounting StyleSTRAIGHT
Mounting TypeBOARD
Number Of ConnectorsONE
Number Of PCB Rows2
Number of Rows Loaded2
OptionGENERAL PURPOSE
PCB Contact PatternRECTANGULAR
PCB Contact Row Spacing2.0066mm
Plating Thickness10u inch
Polarization KeyPOLARIZED HOUSING
Rated Current (Signal)5.1A
Reference StandardUL, CSA
Terminal Length0.208inch
Terminal Pitch2mm
Termination TypeSOLDER
Total Number of Contacts42
Withdrawl Force-Min.834N
PackageOther

Compliance & Regulatory

RoHS StatusCompliant
Lead-FreeYes (Pb-Free)
ECCNEAR99
HTS Code8536.69.40.40
Country of OriginMainland China, USA

Datasheet

SQT-121-03-L-D Datasheet Download

Official datasheet from SAMTEC

Alternate & Equivalent Parts

No known alternates. Submit an RFQ and our team can suggest alternatives.

Frequently Asked Questions

How does SQT-121-03-L-D fit a PCB socket connector design?

SQT-121-03-L-D gives designers 42 pins in a PCB socket connector, making it useful for controlled layouts, production builds, and BOMs that require 42 pins, 0.158 inch pitch, and -55°C to 125°C.

Which mechanical details should engineers verify before release?

Engineers should compare the manufacturer package, 0.158 inch pitch, 42 pins against the PCB drawing because footprint, orientation, mating height, and solder style can affect assembly yield.

What should procurement confirm when sourcing SQT-121-03-L-D?

Procurement should confirm RoHS status, date code, traceability, and manufacturer labeling, then reserve enough approved stock for the 42 pins production build.

Why Buy from FindMyChip

Authorized Source
Verified supply chain with full traceability & inspection
$
Competitive Pricing
Factory-direct from China distributors, low MOQ
Fast Shipping
DHL Express 3–5 days · FedEx/UPS 5–7 days worldwide
Quality Guaranteed
30-day replacement for defective parts, no questions asked

About SAMTEC

SAMTEC is a leading electronic component manufacturer. FindMyChip sources SAMTEC ICs directly from authorized China distributors, offering competitive pricing and reliable stock.

AvailabilityIn Stock
Reference Price (USD)
From $1.9902
Buy from 1pc · Factory-direct pricing
Qty.Unit PriceExt. Price
25+$5.5100$137.75
50+$4.8500$242.50
100+$4.5600$456.00
500+$3.7161$1858.03
1000+$2.7706$2770.55
2000+$1.9902$3980.48
pcs
Unit price: $5.5100 · Total: $137.75

In Stock · 24h Response · Worldwide Shipping

Lead Time3-7 business days
MOQFrom 1 piece
ShippingDHL / FedEx / UPS
OriginChina (Authorized)

Response within 24 hours · Worldwide shipping

Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.

MR
Marco Rossi
CTO, AutoDrive Systems, Italy