SEAF-40-06.5-S-08-2-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC SEAF-40-06.5-S-08-2-A-K-TR is a 40-position single-row board stacking socket connector with Gold (30 µin) over Nickel (50 µin) contact finish, polarization post, and 6.5 mm stack height, RoHS compliant with worldwide availability.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 320
- Lifecycle
- ACTIVE
- Category
- Connector
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 40-position single-row board stacking socket with 6.5 mm stack height and polarization post for error-proof board-to-board mating
- Gold (30 µin) over Nickel (50 µin) contact finish delivering low contact resistance and high reliability across hundreds of mating cycles
- Compact body measuring 2.229 inch length by 0.258 inch depth, optimized for dense PCB stacking in embedded and industrial systems
Applications
The SEAF-40-06.5-S-08-2-A-K-TR is designed for high-reliability board stacking applications in embedded computing, FPGA evaluation platforms, and industrial control systems. Its 40-position layout with polarization post ensures correct board orientation during assembly, while the gold-plated contacts maintain consistent electrical performance in environments subject to vibration and thermal cycling.
Specifications
| Pbfree Code | Yes |
| YTEOL | 8.75 |
| Additional Feature | ROHS COMPLIANT |
| Board Mounting Option | POLARIZATION POST |
| Body Breadth | 0.421inch |
| Body Depth | 0.258inch |
| Body Length | 2.229inch |
| Body/Shell Style | SOCKET |
| Connector Type | BOARD STACKING CONNECTOR |
| Contact Finish Mating | GOLD (30) OVER NICKEL (50) |
| Contact Finish Termination | Tin (Sn) - with Nickel (Ni) barrier |
| Contact Gender | FEMALE |
| Contact Material | COPPER ALLOY |
| Contact Pattern | RECTANGULAR |
| Contact Resistance | 7mΩ |
| Contact Style | BELLOWED TYPE |
| DIN Conformance | NO |
| Dielectric Withstanding Voltage | 900VAC V |
| Durability | 100Cycles |
| Filter Feature | NO |
| IEC Conformance | NO |
| Insertion Force-Max | LIF N |
| Insulation Resistance | 25000000000Ω |
| Insulator Color | BLACK |
| Insulator Material | LIQUID CRYSTAL POLYMER |
| JESD-609 Code | e3 |
| MIL Conformance | NO |
| Mating Contact Pitch | 0.05inch |
| Mating Contact Row Spacing | 0.05inch |
| Mating Information | MULTIPLE MATING PARTS AVAILABLE |
| Mixed Contacts | NO |
| Mounting Option 1 | LOCKING |
| Mounting Style | STRAIGHT |
| Mounting Type | BOARD |
| Number Of Connectors | ONE |
| Number Of PCB Rows | 8 |
| Number of Rows Loaded | 8 |
| Option | GENERAL PURPOSE |
| PCB Contact Pattern | RECTANGULAR |
| PCB Contact Row Spacing | 1.27mm |
| Plating Thickness | 30u inch |
| Polarization Key | POLARIZED HOUSING |
| Rated Current (Signal) | 2.7A |
| Reference Standard | UL |
| Terminal Pitch | 1.27mm |
| Termination Type | SURFACE MOUNT |
| Total Number of Contacts | 320 |
| Withdrawl Force-Min | LIF N |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8536.69.40.40 |
| Country of Origin | Costa Rica, USA |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What stack height and contact finish does SEAF-40-06.5-S-08-2-A-K-TR provide for board stacking designs?
The SEAF-40-06.5-S-08-2-A-K-TR offers a 6.5 mm board-to-board stack height with Gold (30 µin) over Nickel (50 µin) mating contact finish. The 30 µin gold plating provides excellent wear resistance, making it suitable for applications where boards are connected and disconnected repeatedly during testing or field servicing.
How does the polarization post feature on SEAF-40-06.5-S-08-2-A-K-TR prevent assembly errors in production?
The polarization post on the SEAF-40-06.5-S-08-2-A-K-TR physically prevents incorrect board orientation during mating by adding a keying element that only aligns with the matching header in the correct position. This reduces the risk of reversed insertion, which can cause permanent damage to signal traces or components on both mating boards.
What are the physical dimensions of SEAF-40-06.5-S-08-2-A-K-TR and how do they affect PCB layout planning?
The connector body measures 2.229 inch in length, 0.421 inch in breadth, and 0.258 inch in depth. These dimensions must be accounted for in PCB keep-out zones and component placement rules. The 40-position single-row layout along 2.229 inch allows signal routing on both sides of the connector body without interference in typical 8-layer board designs.
Related Guides
ECMF02-4CMX8 Common-Mode Filter with ESD Protection: Selection Guide
Compare ECMF02-4CMX8 vs ECMF02-2AMX6, ECMF04-4HSM10, and other ST ECMF filters. Choose the right 4-channel common-mode filter with ESD protection for USB 2.0.
Jun 20, 2026
AD5204 Quad Digital Potentiometer Selection Guide (2026)
How to choose the right AD5204 quad digital potentiometer: compare 10kΩ vs 100kΩ variants, TSSOP vs SOIC packages, and SPI interface options for your design.
Jun 20, 2026
0402 10uF X5R Decoupling Design Guide for Compact Digital Rails
Application note for using CL05A106MP5NUNC-class 0402 10uF X5R MLCCs in compact digital rail decoupling designs.
Jun 19, 2026
How to Choose an 0805 10uF MLCC for Decoupling and Bulk Capacitance
Selection guide for choosing 0805 10uF MLCCs around CL21A106KOQNNNE, covering derating, dielectric, package, and sourcing checks.
Jun 19, 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.”