SFM-102-02-SM-D-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC SFM-102-02-SM-D-A-K-TR is a 4-position dual-row high-reliability SMT socket strip with 1.27 mm (0.050") pitch, designed for compact board-to-board mezzanine connections requiring 4 signal contacts. Available in stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 4
- Lifecycle
- ACTIVE
- Datasheet
- SFM-102-02-SM-D-A-K-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SFM-102-02-SM-D-A-K-TR?
- 4-position dual-row 1.27 mm (0.050 inch) pitch SMT socket delivers compact high-reliability board-to-board signal mating in minimal footprint
- High-reliability contact design maintains below 20 mΩ contact resistance across 30+ mating cycles for critical power or signal lines
- Tape-and-reel (TR) packaging enables automated SMT pick-and-place assembly for efficient high-volume production
What is SFM-102-02-SM-D-A-K-TR used for?
SFM-102-02-SM-D-A-K-TR is suited for compact modular board designs where only 4 critical signal or power connections must be routed between a main board and a small daughtercard or sensor module. The dual-row 1.27 mm pitch layout keeps the connector footprint under 4 mm in length, making it ideal for wearable electronics, compact IoT nodes, and miniaturized industrial sensor boards. Its high-reliability socket contact design ensures consistent electrical performance even under mechanical vibration and repeated board insertion cycles.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the SFM-102-02-SM-D-A-K-TR datasheet?
SFM-102-02-SM-D-A-K-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for SFM-102-02-SM-D-A-K-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
For a 4-signal sensor module interface, how does SFM-102-02-SM-D-A-K-TR's 1.27 mm pitch reduce PCB footprint versus 2.54 mm alternatives?
SFM-102-02-SM-D-A-K-TR uses 1.27 mm (0.050 inch) pitch, placing the 4 positions in a connector body approximately 3.8 mm long, compared to approximately 7.6 mm for an equivalent 2.54 mm pitch connector. This 50% reduction in connector length is significant in compact sensor PCBs measuring 10 mm × 15 mm or smaller, where every millimeter of board edge space is allocated to multiple connector interfaces and component keepout zones.
What mating header complements SFM-102-02-SM-D-A-K-TR for a complete 4-position board-to-board assembly?
SFM-102-02-SM-D-A-K-TR mates with SAMTEC TFM-102 series dual-row 1.27 mm pitch terminal strip headers in the 4-position configuration. The matched SFM socket and TFM header provide a defined mating stack with insertion force below 5 N for the 4-position assembly, making them safe for manual mating during field installation without risk of connector damage, while still achieving extraction force above 2 N to prevent inadvertent disconnection under vibration.
How does SFM-102-02-SM-D-A-K-TR's dual-row 4-position layout handle both power and signal on the same connector?
In a dual-row 4-position layout, SFM-102-02-SM-D-A-K-TR provides 2 contacts in each row that can be assigned to mixed power-and-signal functions. For example, 1 row pair can carry a 3.3 V power rail rated for up to 1 A per contact, while the second row pair handles I2C SDA and SCL signals for a sensor module. This mixed assignment reduces the total number of connectors on a compact IoT board from 2 separate connectors down to 1, saving 4 mm of board space and simplifying cable harness routing.
What does the SMT SM suffix mean for SFM-102-02-SM-D-A-K-TR, and how does it affect solder joint reliability?
The SM suffix on SFM-102-02-SM-D-A-K-TR denotes surface mount termination with solder legs that sit flat on PCB pads for reflow soldering. This SMT termination style eliminates through-hole drilling, and the short SMT solder leg length below 1 mm minimizes thermal stress concentration during reflow at 250°C peak temperature. For IPC Class 3 assembly qualification, the SMT solder joints on SFM-102-02-SM-D-A-K-TR require pad dimensions of approximately 1.0 mm × 0.6 mm per contact for acceptable fillet formation and long-term fatigue life exceeding 500 thermal cycles from -40°C to +85°C.
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