TST-120-03-H-D SAMTEC Connector (Other) In Stock

TST-120-03-H-D is a 40 position, shrouded pcb headers, 0.100" pitch from SAMTEC for production PCB assemblies. Key specs include 40 pins, 0.100 inch pitch, -55°C to 125°C operation and active lifecycle support. Request current stock, quoted pricing, and worldwide shipping through FindMyChip.

ACTIVEConnectorVerified Jul 2026
Package / Visual Reference
TST-120-03-H-DOther
Quick Facts
Manufacturer
SAMTEC
Package
Other
Pin Count
40
Lifecycle
ACTIVE
Category
Connector
Price
From $4.2905(MOQ 1)
Temp Range
-55.0°C to 125.0°C
RoHS
Compliant
Lead Time
3–7 business days
Shipping
DHL Express · Worldwide

What are the key features of TST-120-03-H-D?

  • 40-position connector configuration for compact PCB interconnect layouts
  • 0.100 inch contact pitch supports dense board-level routing and assembly planning
  • Operating temperature range from -55°C to 125°C for industrial environments
  • Gold (Au) - with Nickel (Ni) barrier contact system for reliable mating performance
  • BOARD CONNECTOR format for board-to-board or cable-to-board connections
  • SAMTEC sourcing identity supports BOM traceability and alternate qualification
  • FindMyChip inquiry workflow supports current stock checks, quoted pricing, and worldwide shipping

What is TST-120-03-H-D used for?

TST-120-03-H-D is typically used in board-to-board interconnects, mezzanine modules, embedded controllers, test fixtures, and compact industrial electronics. Buyers use it for new builds, maintenance demand, and approved alternates where manufacturer traceability matters. Its 40 pins context helps engineers confirm fit before procurement.

What are the specifications of TST-120-03-H-D?

Reach Compliance CodeCompliant
YTEOL9.1
Body Breadth0.365inch
Body Depth0.365inch
Body Length2.3inch
Connector TypeBOARD CONNECTOR
Contact Finish TerminationGold (Au) - with Nickel (Ni) barrier
Contact GenderMALE
Contact PatternRECTANGULAR
Contact StyleSQ PIN-SKT
DIN ConformanceNO
Filter FeatureNO
IEC ConformanceNO
Insulation Resistance5000000000Ω
Insulator ColorBLACK
Insulator MaterialGLASS FILLED POLYESTER
JESD-609 Codee4
MIL ConformanceNO
Mating Contact Pitch0.1inch
Mating Contact Row Spacing0.1inch
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 Spacing2.54mm
Plating Thickness30u inch
Polarization KeyPOLARIZATION NOTCH
Terminal Length0.565inch
Terminal Pitch2.54mm
Termination TypeSOLDER
Total Number of Contacts40
PackageOther

Compliance & Regulatory

RoHS StatusCompliant
Lead-FreeYes (Pb-Free)
ECCNEAR99
HTS Code8536.69.40.40

Where can I find the TST-120-03-H-D datasheet?

TST-120-03-H-D Datasheet Download

Official datasheet from SAMTEC

What are equivalent replacements for TST-120-03-H-D?

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

Frequently Asked Questions

Which designs are a good fit for TST-120-03-H-D when 40pins is required?

TST-120-03-H-D is a connector from SAMTEC for board-to-board, cable, panel, and embedded interconnect assemblies. The 40pins specification helps engineers confirm electrical margin before adding it to a production BOM.

How should engineers check the footprint before placing TST-120-03-H-D on a PCB?

Review the 40-position package information together with 40 pins before layout release. That check reduces substitution risk when matching land pattern, assembly process, and approved vendor data.

When would procurement choose TST-120-03-H-D instead of a nearby alternate?

Buyers should keep TST-120-03-H-D when the approved design depends on -55°C and 40-position compatibility. Alternate reviews should verify at least 1 matching electrical rating and footprint constraint.

Related Guides

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Competitive Pricing
Factory-direct from China distributors, low MOQ
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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 $4.2905
Buy from 1pc · Factory-direct pricing
Qty.Unit PriceExt. Price
1+$10.7200$10.72
50+$9.3400$467.00
100+$7.6400$764.00
500+$6.5747$3287.35
1000+$5.4790$5479.04
2000+$4.2905$8580.96
pcs
Unit price: $10.7200 · Total: $10.72

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

Response time is incredible — usually under 4 hours. They understand that production lines can't wait.

JW
James Wright
Supply Chain Director, CircuitPro Ltd, UK