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SEAM-10-03.5-L-04-2-A-K-TR

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WSEAM 40-Position 1.27mm Board-to-Board Connectors: Replacement for SAMTEC SEAM-10-03.5-L-04-2-A-K-TR

SEAM-10-03.5-L-04-2-A-K-TR
Board-to-Board Connectors
SEAM-10-03.5-L-04-2-A-K-TR
Mfr. Part No. : WSEAM-210H03.5L042AKTR
Standalone or 100% Samtec-Compatible. Identical Specs. Plug & Play.
Compatible model for SEAM-10-03.5-L-04-2-A-K-TR is WSEAM-210H03.5L042AKTR. SEARAY™ SEAM series 1.27mm pitch 4-row connector, 40 pins total. Connector Type: High Density Array, Male, Number of Positions: 40, Pitch: 0.050" (1.27mm), Number of Rows: 4, Mounting Type: Surface Mount, Features: Board Guide, Pick and Place, Contact Finish: Gold, Contact Finish Thickness: 10.0µin (0.25µm), Mated Stacking Heights: 8.5mm, 9.5mm, 10mm, 11mm, Height Above Board: 0.240" (6.10mm)
🏷 40 pin connector Board‑to‑board connectors for precision instruments
Connector Series: WSEAM
Number of Pins: 40
Connector Pitch: 1.27mm
Rows: 4
$10.46 $7.34
In Stock (9475)

Typical lead time: contact for quote Packaging: Multi-Layer Reel

Datasheet Request a Quote
Documentation View all

Download connector datasheets. PDFs include product overview, features, pin definitions, pinout diagrams, and technical specifications.

SEAM-10-03.5-L-04-2-A-K-TR Datasheet Download PDF
SEAM-10-03.5-L-04-2-A-K-TR Specification Comparison

Specification comparison is for reference only. For detailed drawings, datasheets, or custom specs, email us at connector@worldpo.com.

Part Number SEAM-10-03.5-L-04-2-A-K-TR SEAM-10-03.5-L-04-2-A SEAM-10-03.5-S-04-2-A SEAM-10-02.0-L-04-2-A
Connector Type Header Terminal Terminal Terminal
Connector Series WSEAM WSEAM WSEAM WSEAM
Connector Pitch 1.27mm 1.27mm 1.27mm 1.27mm
Rows 4 4 4 4
Number of Pins 40 40 40 40
Terminal Interface Surface Mount (SMD) Surface Mount (SMD) Surface Mount (SMD) Surface Mount (SMD)
Orientation Vertical Vertical Vertical Vertical
Material / Metal Other High Copper Alloy (for pins/contacts) High Copper Alloy (for pins/contacts) High Copper Alloy (for pins/contacts)
Color Moss Green Black Black Black
Rated Voltage (VAC/VDC) 25 300 300 300
Rated Current per Contact (Max.) (A) 0.2～0.5A 2～3A 2～3A 2～3A
Plating Gold Plating (Au) Gold Plating (Au) Gold Plating (Au) Gold Plating (Au)
Plating Thickness Phosphor Bronze - Selective Gold/Tin Plating (Au/Sn) - 5μin (0.127μm) 30μin（0.76μm） 30μin（0.76μm） 30μin（0.76μm）
Packaging Multi-Layer Reel Reel Reel Reel
Insulation Diameter (mm) 1.05 3.90 3.90 3.90
Wire Gauge (AWG) 16～22 22 22 22
Operating Temperature Other -55℃～125℃ -55℃～125℃ -55℃～125℃
Number of Circuits 40 280 280 280
Basic Information

* "The parameters listed are for reference only. For detailed specifications and design drawings, please contact our online technical support team."

Category Board-to-Board Connectors
Connector Type Header
Connector Series WSEAM
Connector Pitch 1.27mm
Rows 4
Number of Pins 40
Terminal Interface Surface Mount (SMD)
Orientation Vertical
Material / Metal Other
Color Moss Green
Rated Voltage (VAC/VDC) 25
Rated Current per Contact (Max.) (A) 0.2～0.5A
Plating Gold Plating (Au)
Plating Thickness Phosphor Bronze - Selective Gold/Tin Plating (Au/Sn) - 5μin (0.127μm)
Packaging Multi-Layer Reel
Insulation Diameter (mm) 1.05
Wire Gauge (AWG) 16～22
Operating Temperature Other
Number of Circuits 40
Product FAQ

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Frequently Asked Questions

3 questions

  • Q: What is the pitch and pin count of this connector? Is it in stock?

    This WSEAM series part SEAM-10-03.5-L-04-2-A-K-TR has a pitch of 1.27mm and 40 pins. Current availability: 9475. For datasheets and drawings, please contact our technical team or use the form above.

  • Q: Hi, what are the differences between the SEAM-10-03.5-L-04-2-A-K-TR connector and FTSH-105-02-F-DV in terms of Rows, Voltage, and Wire Gauge (AWG)?

    Hi, SEAM-10-03.5-L-04-2-A-K-TR and FTSH-105-02-F-DV differ in all three parameters — Rows, Voltage, and Wire Gauge (AWG). Specifically, SEAM-10-03.5-L-04-2-A-K-TR has Rows is 4, Voltage is 25, Wire Gauge (AWG) is 16～22; while FTSH-105-02-F-DV has Rows is 2, Voltage is 500, Wire Gauge (AWG) is 28～32. When selecting, compare orientation, termination process, and material needs for your application. For a full side-by-side specification comparison, please contact our online support.
    Asked: 2026-08-21 14:11:11 Answered: 2026-08-21 14:11:11

  • Q: Hi, is the SEAM-10-03.5-L-04-2-A-K-TR connector male or female, and which mating connector part numbers can be used with it?

    Hi, the SEAM-10-03.5-L-04-2-A-K-TR connector is a Male connector. For mating use, this series pairs with SEAF. Recommended mating SEAF part numbers include: SEAF-20-02.0-L-08-2-A-GP-K, SEAF-20-01-L-04-2-A-K, SEAF-20-02.0-L-10-2-A-K-TR, SEAF-20-01-L-04-2-RA-GP-K-TR, SEAF-20-03.0-L-04-2-A-A-K-TR, SEAF-20-03.0-L-08-2-A-K-TR, SEAF-20-01-L-08-2-A-GP, SEAF-20-01-L-04-2-RA-K. You can search these part numbers on this site for full specs and availability.
    Asked: 2026-08-21 14:10:53 Answered: 2026-08-21 14:10:53
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