87421-0000 Crimp Terminal Spec Report: Full Datasheet
Full Technical Datasheet & Engineering Evaluation
This brief, data-driven overview presents the 87421-0000 for quick evaluation and assembly decision-making.
The part is widely specified for 1.50 mm pitch, 24–26 AWG crimped connections used in board-to-wire harnesses.
Use this report to confirm electrical class, mechanical expectations, and assembly controls before procurement or production ramp.
Note: Target readers are engineers and buyers needing actionable specs and process limits. The text focuses on measurable parameters, inspection criteria, and procurement checks. Follow the tables and test-method call-outs to reduce assembly failures.
Product Overview & Intended Applications
Core Use Cases
The 87421-0000 is a female crimp terminal intended for small-pitch wire-to-board or housing systems. It fits 1.50 mm pitch housings and accepts 24–26 AWG conductors, with typical current/voltage class near 2.5 A / 250 V. These attributes make the contact suitable for consumer electronics, small appliances, instrumentation, and short-run harness assemblies where space and reliable low-current connections matter.
Form Factors & Packaging
Form factor is a single-piece crimp terminal supplied for automated or manual insertion. Common packaging is tape-and-reel for high-volume feeders or bulk/tray for small lots. For automated insertion, verify tape dimensions and pick-and-place orientation; for manual assembly, confirm feed tooling compatibility and anti-static handling procedures.
Technical Specifications & Measured Performance
| Parameter | Typical / Spec |
|---|---|
| Pitch | 1.50 mm (0.059 in) |
| Wire Range | 24–26 AWG (stranded) |
| Current Rating | ≈2.5 A (per contact, IPC-style ambient test) |
| Voltage Rating | 250 V (insulation system voltage class) |
| Contact Material | Phosphor bronze (typical) |
| Plating | Tin over nickel (typical) |
| Contact Resistance (max) | <20 mΩ initial (4-wire, 10 mA) |
| Operating Temp | -40 °C to +105 °C |
| Recommended Crimp Height | 0.40 ±0.05 mm |
Visual Performance Scale: Operating Temperature
*Test conditions: 4-wire method at 20 °C. Reliability metrics expect initial resistance <20 mΩ; after thermal cycling (−40 °C ↔ 85 °C), allowable increase ≤5 mΩ.
Crimping, Tooling & Assembly Best Practices
Process Parameters
Use UL-style insulated stranded conductors within 24–26 AWG. A controlled crimp profile with target height 0.40 ±0.05 mm and minimum pull-force (e.g., 15 N for 24 AWG) yields reliable joints. Stabilize wire insertion length and maintain process windows to avoid conductor damage.
Inspection & Rework
Detect issues via pull tests, cross-sections, or microscope inspection. Common failures include insufficient compression and insulation bite issues. Note: Do not re-crimp on the same barrel; acceptable rework is replacement of the terminal and re-termination.
Variants, Compatible Housings & Alternatives
Verify housing match for pitch, latch, and position count. A housing described as "1.50 mm pitch, friction latch" determines polarization and retention. Substitutes must meet electrical and mechanical parity. Use a decision matrix focusing on pitch, AWG capacity, current rating, and plating compatibility before approving production changes.
Procurement & Compliance Checklist
- ✓ Require specific datasheet pages and material declarations (RoHS/REACH) from suppliers.
- ✓ Confirm orderable quantity, reel size, and lot traceability on all labels.
- ✓ Perform incoming inspection with pull tests and visual checks per supplier crimp-spec.
- ✓ Implement failure logging to track MTBF trends and plan long-term reliability monitoring.
Summary Recommendations
- Verify dimensional match to 1.50 mm pitch and crimp-barrel internal length before selection.
- Control crimp height to 0.40 ±0.05 mm and enforce pull-force sampling (minimum 15 N for 24 AWG).
- Require supplier test reports for contact resistance (4-wire), thermal cycling, and corrosion.
