Needs validationhigh risk
A JST VH series header with matching pitch and higher current rating, but requires mechanical and mating part verification.
Best Alternatives to 640445-3
TE Connectivity's 640445-3 is a 3-pin, 3.96mm pitch MTA-156 header. While direct replacements are specific, several functional alternatives with the same pitch and pin count exist from other connector families, requiring design verification.
AI replacement insight
Package riskhigh
Housing dimensions, footprint, and locking features are different.
Electrical risklow
Candidates have matching or superior voltage/current ratings.
Sourcing risklow
Alternatives are from common, widely available connector families.
Can it be replaced directly?
No direct, drop-in replacements were found. All reviewed candidates belong to different, non-intermateable connector families.
Best replacement path
Use a functional alternative from a widely available connector family like JST VH, such as B3P5-VH(LF)(SN), and replace the mating connector as well.
Main risk
Mechanical incompatibility. The replacement will not mate with the existing female connector, requiring a full system change.
Recommended alternatives
3Alternative comparison matrix
| Feature / factor | 640445-3 | B3P5-VH(LF)(SN) | A3963WV-3P | ZX-VH3.96-3PZZ-R | Compatibility / risk |
|---|---|---|---|---|---|
| Application | TE MTA-156 Series | JST VH Series | A3963 Series (KK 396 Clone) | VH Series Clone | JST VH Series / A3963 Series (KK 396 Clone) / VH Series Clone — Different, non-intermateable connector family.; A3963WV-3P: Different, non-intermateable connector family.; ZX-VH3.96-3PZZ-R: Different, non-intermateable connector family. |
| Pitch | 3.96mm | 3.96mm | 3.96mm | 3.96mm | 3.96mm — Pitch matches.; A3963WV-3P: Pitch matches.; ZX-VH3.96-3PZZ-R: Pitch matches. |
| Current | 7A | 10A | 10A | 7A | 10A / 7A — Higher current rating is an upgrade.; A3963WV-3P: Higher current rating is an upgrade.; ZX-VH3.96-3PZZ-R: Current rating matches target's typical rating. |
| Voltage | 250V | 250V | - | - | 250V — Voltage rating matches. |
| Temperature | unknown | - | -40°C ~ +105°C | - | -40°C ~ +105°C — Wider operating temperature range. |
| Pinout | 3 | - | - | 3 | 3 — Pin count matches, but footprint requires verification. |
| Material | Thermoplastic Polyester | - | - | PA66 | PA66 — Housing material differs but is a common alternative. |
Application & sourcing insights
Questions & answers
Alternatives like JST's B3P5-VH(LF)(SN) offer similar electrical specs and a 3.96mm pitch, but belong to the VH connector family. This is not a drop-in replacement and requires verifying mechanical fit and changing the mating connector.