M27500-22SB2T23 is a 2-core 22 AWG twisted shielded cable manufactured to MIL-DTL-27500. The conductors are M22759/32 cross-linked ETFE (Tefzel-type), tin-plated copper, enclosed in a tinned copper single braid shield with drain wire and an extruded cross-linked ETFE outer jacket.
22 AWG is the most commonly used gauge for motorsport sensor wiring — heavy enough for reliable termination with standard crimp contacts, light enough for neat harness construction.
M27500-22SB2T23 Specifications
| Property | Value |
|---|---|
| Part number | M27500-22SB2T23 |
| Conductor count | 2 |
| Conductor gauge | 22 AWG |
| Conductor type | M22759/32 (cross-linked ETFE, tin-plated copper) |
| Shield type | Tinned copper single braid with drain wire |
| Outer jacket | Extruded cross-linked ETFE (XLETFE) |
| Temperature range | −65°C to +150°C |
| Voltage rating | 600 VAC |
| Sold in | 1 m lengths |
Typical Use — VR Trigger and Knock Sensor Wiring
Variable reluctance (VR) crank and cam trigger sensors output a differential signal — signal+ and signal−. Both conductors carry the sensor output; the shield drain grounds at the ECU end to reject ignition and power-system interference.
| Conductor | Function | Notes |
|---|---|---|
| White | Signal + | Differential positive output from VR sensor |
| White / Orange | Signal − | Differential negative output |
| Shield drain | EMI shield | Ground at ECU end only — leave sensor end floating |
Knock sensors use the same 2-wire configuration. Route the cable away from ignition coil and injector wiring wherever possible; the braid shield handles incidental EMI from shared conduit.
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