
Tap Splice Connectors — 87 Series
Color-coded tap splice connectors (IDC/T-Tap) for fast, no-strip wire tapping: 22–10 AWG / 0.5–6 mm².
Snap-on nylon body with tin-plated piercing blade; rated 600 V / 105 °C.
Three sizes (red/blue/yellow) for automotive, lighting and appliance wiring.
Overview
WILLELE 87 Series tap splice connectors (also called IDC tap splice / T-tap terminals) let you branch a new wire from an existing run
without stripping insulation. Snap the housing shut and the tin-plated blade pierces both insulations to create a reliable electrical joint.
Rated 600 V, 105 °C.
- No-strip, one-hand snap-on installation improves service speed.
- Nylon housing with corrosion-resistant, tin-plated piercing blade.
- Color-coded sizes cover 22–10 AWG (0.5–6 mm²).
Specifications
| Model | W (mm) | L (mm) | Cable Size | Color |
|---|---|---|---|---|
| 878100 | 20.0 | 27.0 | 22–18 AWG (0.5–1.0 mm²) | Red |
| 878101 | 20.0 | 27.0 | 18–14 AWG (0.75–2.5 mm²) | Blue |
| 878201 | 20.5 | 34.5 | 12–10 AWG (4–6 mm²) | Yellow |
Operating temperature 105 °C; max voltage 600 V. Use on stranded copper conductors only.

Applications
- Automotive harness repair and add-on accessories.
- LED lighting and appliance field wiring.
- General maintenance where quick branch/tap connections are needed.
Installation Tips
- Place the running wire in the connector body; insert the tap wire into the side channel.
- Close the cover fully until it latches to drive the IDC blade through both insulations.
- Perform a gentle pull test; insulate further with tape/heat-shrink if required by code.
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