
A 2-pin, 2.0mm pitch straight header from JST's PH series, but with a lower voltage rating of 100V.
Find and compare alternatives for the Megastar ZX-HY2.0-2PZZ, a 2-pin 2.0mm pitch straight through-hole header. Review potential substitutes, paying close attention to voltage ratings and mechanical compatibility.
One top candidate has a lower voltage rating.
One candidate is from a different series with a mounting boss, requiring layout verification.
No direct, drop-in replacement with identical ratings has been confirmed. The closest options require either accepting a lower voltage rating or verifying mechanical differences.
Evaluate JST's B2B-PH-K-S(LF)(SN) if the application voltage is under 100V, or perform a mechanical layout check for JST's B02B-PASK-1(LF)(SN) for a higher-rated option.
The main risk is mechanical incompatibility due to different connector series or electrical stress from using a part with a lower voltage rating.

A 2-pin, 2.0mm pitch straight header from JST's PH series, but with a lower voltage rating of 100V.
| Feature / factor | ZX-HY2.0-2PZZ | B2B-PH-K-S(LF)(SN) | B02B-PASK-1(LF)(SN) | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | Through Hole, Straight | Through Hole, Straight | Through Hole, Straight, with Boss | Through Hole, Straight / Through Hole, Straight, with Boss — Candidate is a straight, top-entry header.; B02B-PASK-1(LF)(SN): Candidate has a mounting boss which may require a different PCB hole pattern. | |
| Voltage | 250V | 100V | 250V | 100V / 250V — Candidate voltage rating is significantly lower.; B02B-PASK-1(LF)(SN): matched | |
| Current | 2A | 2A | 3A | 2A / 3A — matched; B02B-PASK-1(LF)(SN): Candidate has a higher current rating. | |
| Application | Megastar PH-style | JST PH Series | JST PA Series | JST PH Series / JST PA Series — Both are PH-style connectors, suggesting good mating compatibility.; B02B-PASK-1(LF)(SN): Different connector family may have different shroud dimensions and keying. |
The JST B2B-PH-K-S(LF)(SN) is a strong functional match but has a lower voltage rating (100V vs 250V). For applications below 100V, it's a good candidate. The JST B02B-PASK-1(LF)(SN) has better electrical ratings but requires mechanical verification.