Description
251-8503 Female Straight Header, Black, Closed Top, 2 Way, 1 Row, 2.54 mm Pitch — BOLTON SKU 60879.
About the 251-8503 Header, 2-Way 1-Row 2.54 mm Pitch
Reference 251-8503 is an RS PRO female shorting link (jumper/shunt) in a straight, closed-top format: a single row of two contacts on 2.54 mm pitch that bridges a pair of adjacent header pins. The contacts are tin-plated phosphor bronze with a maximum contact resistance of 20 milliohms, housed in black glass-filled PBT rated UL94V-0 for flammability. The closed top gives a finished appearance and a grip surface for placement and removal. It is intended to mate with 0.6 mm square header pins with a recommended minimum pin length of 4.3 mm. Overall body dimensions are approximately 4.98 mm x 6.47 mm x 2.44 mm.
Key specifications
| Reference | 251-8503 (RS PRO) |
|---|---|
| Type | Shorting link / jumper shunt, closed top, straight |
| Positions | 2 way, 1 row |
| Pitch | 2.54 mm |
| Contact material | Tin-plated phosphor bronze |
| Contact resistance | 20 mΩ maximum |
| Housing | Black glass-filled PBT, UL94V-0 |
| Mating pin | 0.6 mm sq., min. 4.3 mm length |
Typical applications
Closed-top 2.54 mm shunts of this kind set configuration options on PCBs — selecting voltages, enabling features, or defining addresses on jumper headers — and provide temporary bridging during test and commissioning. This 2-way part suits standard 0.1-inch pin headers found across industrial and embedded electronics.
Supplied by BOLTON Technical Equipment Supplies against request for quotation. Add this item to your RFQ basket to request pricing, lead time and documentation requirements (e.g. CoC, datasheets or test reports where applicable).
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