SMS-135-02-S-D SAMTEC Connector (Other) In Stock
SAMTEC SMS-135-02-S-D is a 70-position dual-row board socket connector with gold over nickel contact finish and a 1.75 inch body length. Features Tiger Buy contact design for enhanced durability and RoHS-compliant construction. Available from stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 70
- Lifecycle
- ACTIVE
- Datasheet
- SMS-135-02-S-D Datasheet PDF
- Category
- Connector
- Temp Range
- -65.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Gold (30 µin) over nickel (50 µin) contact finish provides superior corrosion resistance and low contact resistance for reliable long-term board connections
- Tiger Buy contact design offers enhanced mechanical retention and consistent insertion force across the full 70-position array
- RoHS compliant construction meets international environmental and hazardous substance regulations for global market deployment
- Compact 1.75 inch body length accommodates high pin-count board socket connections in space-efficient PCB layouts
Applications
The SMS-135-02-S-D is a high-reliability board socket connector designed for backplane, test and measurement, and industrial control applications requiring durable gold-contact interconnects with consistent electrical performance across many mating cycles. Its gold over nickel contact finish is particularly suited to environments with elevated humidity or temperature cycling where base metal corrosion can degrade contact resistance. The dual-row socket layout supports both signal and power pin assignments in applications such as PCIe expansion cards, SBC carrier boards, and ruggedized communication modules.
Specifications
| Pbfree Code | Yes |
| Factory Lead Time | 3Weeks |
| YTEOL | 9.15 |
| Additional Feature | TIGER BUY CONTACT |
| Body Breadth | 0.22inch |
| Body Depth | 0.335inch |
| Body Length | 1.75inch |
| Body/Shell Style | SOCKET |
| Connector Type | BOARD CONNECTOR |
| Contact Finish Mating | GOLD (30) OVER NICKEL (50) |
| Contact Finish Termination | Tin (Sn) - with Nickel (Ni) barrier |
| Contact Gender | FEMALE |
| Contact Material | PHOSPHOR BRONZE |
| Contact Pattern | RECTANGULAR |
| Contact Resistance | 10mΩ |
| Contact Style | SQ PIN-SKT |
| DIN Conformance | NO |
| Dielectric Withstanding Voltage | 600VAC V |
| Filter Feature | NO |
| IEC Conformance | NO |
| Insertion Force-Max | 2.224N |
| Insulation Resistance | 5000000000Ω |
| Insulator Color | BLACK |
| Insulator Material | GLASS FILLED POLYESTER |
| JESD-609 Code | e3 |
| MIL Conformance | NO |
| Mating Contact Pitch | 0.05inch |
| Mating Contact Row Spacing | 0.1inch |
| Mating Information | MULTIPLE MATING PARTS AVAILABLE |
| Mixed Contacts | NO |
| Mounting Style | STRAIGHT |
| Mounting Type | BOARD |
| Number Of Connectors | ONE |
| Number Of PCB Rows | 2 |
| Number of Rows Loaded | 2 |
| Option | GENERAL PURPOSE |
| PCB Contact Pattern | RECTANGULAR |
| PCB Contact Row Spacing | 2.54mm |
| Plating Thickness | 30u inch |
| Rated Current (Signal) | 1A |
| Reference Standard | UL |
| Terminal Length | 0.19inch |
| Terminal Pitch | 1.27mm |
| Termination Type | SOLDER |
| Total Number of Contacts | 70 |
| Withdrawl Force-Min | 1.668N |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8536.69.40.40 |
| Country of Origin | France, Malaysia |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What contact finish specification does the SMS-135-02-S-D use and how does it affect mating cycle life?
The SMS-135-02-S-D uses gold (30 microinches) over nickel (50 microinches) contact finish, which provides both corrosion protection and low initial contact resistance below 20 milliohms. Gold-plated contacts support a minimum of 100 to 500 mating cycles without significant degradation in contact resistance, depending on connector design, making them suitable for test fixtures, lab equipment, and field-serviceable boards that require repeated mating and unmating.
How does the Tiger Buy contact design in SMS-135-02-S-D differ from standard socket contacts in terms of retention force?
The Tiger Buy contact design in SAMTEC connectors uses an enhanced spring geometry that increases the normal force on the mating pin, resulting in higher retention force and lower contact resistance per pin compared to standard socket contacts. This design reduces the risk of intermittent connections caused by vibration or thermal cycling, and is particularly valuable in applications where the mated connector assembly may experience mechanical shock up to several G in industrial or transportation environments.
For a ruggedized backplane design, how does the 1.75 inch body length of SMS-135-02-S-D constrain PCB layout planning?
A 1.75 inch (44.45 mm) body length requires a corresponding keep-out zone of at least 46 mm in the connector axis direction to accommodate manufacturing tolerances and mating clearance. For a dual-row layout, the perpendicular footprint width is determined by the row pitch, typically 2.54 mm for standard .100 inch pitch connectors. PCB layout engineers should account for this envelope early in floorplanning to ensure adjacent components maintain the minimum 0.5 mm to 1.0 mm clearance from the connector body edges.
What is the factory lead time for SMS-135-02-S-D and how does the RoHS compliance status affect global procurement?
The factory lead time for SMS-135-02-S-D is 3 weeks, which is relatively short for a custom board socket connector with gold-plated contacts. RoHS compliance (confirmed by Pbfree code: Yes) removes import restrictions in the European Union, China RoHS, and other markets that mandate restriction of hazardous substances, simplifying global procurement and customs clearance for OEMs shipping finished products to multiple geographic regions without requiring separate component qualifications per market.
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