
CJT
Strong pin-to-pin candidate with identical ratings and a wider temperature range.
The Nextron Z-21105110021001 is a standard 1x5, 2.54mm pitch male pin header. Several functional and pin-compatible alternatives are available, with the CJT A2541WV-5P identified as a strong, low-risk replacement.
Top candidates match or exceed voltage and current ratings.
While pitch and pin count match, subtle differences in pin length or insulator dimensions must be checked.
This is a common connector type with multiple manufacturers, reducing sourcing risk.
Yes, the CJT A2541WV-5P is a strong candidate for a direct, pin-compatible replacement for the Z-21105110021001, pending verification of mechanical drawings.
The CJT A2541WV-5P is the best replacement path, offering a complete parametric match and a wider temperature range. It is considered a low-risk, pin-compatible alternative.
The main risk when substituting this header is a mismatch in mechanical dimensions, such as pin length or insulator height, which could affect mating and assembly.

CJT
Strong pin-to-pin candidate with identical ratings and a wider temperature range.
| Feature / factor | Z-21105110021001 | A2541WV-5P | DZ254R-11-05-63 | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | Through Hole, 1x5 | Through Hole, 1x5 | Through Hole, 1x5 | Through Hole, 1x5 — Pitch, positions, and rows match.; DZ254R-11-05-63: Pitch, positions, and rows match. | |
| Current | 3 A | 3 A | 3 A | 3 A — Current rating is identical.; DZ254R-11-05-63: Current rating is identical. | |
| Temperature | -25°C to +105°C | -40°C to +105°C | Not specified | -40°C to +105°C / Not specified — Wider operating temperature range.; DZ254R-11-05-63: Operating temperature must be verified from datasheet. | |
| Voltage | 250 V AC/DC | 250 V | - | 250 V — Voltage rating is identical. |
The best alternative found is the A2541WV-5P from CJT. It matches all key electrical specifications and has a wider operating temperature range, making it a robust, low-risk substitute.