
CJT
From the same manufacturer with a similar form factor, but lower electrical ratings make it a downgrade.
Finding a substitute for the CJT A2012WV-S-4P, a 4-pin 2.0mm vertical SMT header, requires checking mechanical fit and electrical ratings. Alternatives exist but may have lower current or voltage specs.
Many alternatives have lower current/voltage ratings.
Footprints can vary slightly even with the same pitch and style.
No direct, verified drop-in replacement has been identified. All candidates require careful engineering review due to electrical or mechanical differences.
Downgrade to a lower-spec part like A2001WV-S-4P if the application allows, or find a new part matching the 3A/250V rating and form factor.
Electrical downgrade. Most similar connectors have lower current and voltage ratings than the target's 3A/250V specification.

CJT
From the same manufacturer with a similar form factor, but lower electrical ratings make it a downgrade.
| Feature / factor | A2012WV-S-4P | A2001WV-S-4P | B4B-PH-SM4-TBT(LF)(SN) | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Manufacturer | CJT | CJT | - | CJT — Same manufacturer, different series (A2001 vs A2012). | |
| Package | 4-pin SMT Header | 4-pin SMT Header | 4-pin SMT Header | 4-pin SMT Header — SMT, Vertical, 2.0mm pitch, 4-pin; B4B-PH-SM4-TBT(LF)(SN): SMT, Vertical, 2.0mm pitch, 4-pin | |
| Current | 3 A | 2 A | 2 A | 2 A — Downgrade from target's 3A rating.; B4B-PH-SM4-TBT(LF)(SN): Significant downgrade from target's 3A rating. | |
| Voltage | 250 V | 100 V | 100 V | 100 V — Downgrade from target's 250V rating.; B4B-PH-SM4-TBT(LF)(SN): Significant downgrade from target's 250V rating. | |
| Temperature | -40°C to +105°C | - | -25°C to +85°C | -25°C to +85°C — Narrower range than target. |
No direct drop-in replacement has been identified. Candidates like CJT's A2001WV-S-4P offer a similar form factor but with lower electrical ratings (2A/100V vs 3A/250V), making them a downgrade risk suitable only for less demanding applications.