
HCTL
Strong functional match with same mounting type, pin count, and electrical ratings; requires pinout verification.
Finding a substitute for the 9821WV-05P, a 5-pin 1.25mm pitch straight through-hole header, involves matching its mechanical footprint and electrical ratings. While several functional alternatives exist, careful verification is required.
Many alternatives are SMT or right-angle, which are not compatible with the target's straight through-hole footprint.
Several candidates match or exceed the target's 1A/125V rating. Downgrades must be avoided.
Direct replacement for 9821WV-05P should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
The strongest candidate is HC-1.25-5A, which matches the through-hole mounting, pin count, and electrical ratings. However, its pinout and mechanical dimensions must be verified from the datasheet before it can be considered a drop-in replacement.
The primary risk is mechanical incompatibility. Many alternatives have a different mounting style (SMT vs. through-hole) or orientation (right-angle vs. straight), which would require a PCB redesign.

HCTL
Strong functional match with same mounting type, pin count, and electrical ratings; requires pinout verification.
| Feature / factor | 9821WV-05P | HC-1.25-5A | ZX-MX1.25-5PLT | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | Through Hole, Straight | Through Hole, Straight | - | Surface Mount (SMT) — Requires PCB redesign. | |
| Pinout | 5 | 5 | - | 5 — Pin count matches. | |
| Voltage | 125 V | 125 V | - | 125 V — Voltage rating matches. | |
| Current | 1 A | 1 A | - | 1.0 A — Current rating matches. |
Verified drop-in options for 9821WV-05P are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.