TST's TZ0308D is a potential functional alternative, offering the same 40MHz frequency and package. However, its 9pF load capacitance differs from the target's 15pF and requires circuit review.
Best Alternatives to TXM40M0004322HBCEO00T
Finding a replacement for the Yajingxin TXM40M0004322HBCEO00T 40MHz crystal requires careful matching of its 15pF load capacitance and -40°C to 85°C temperature range. Alternatives exist but may require circuit adjustments.
AI replacement insight
Electrical riskhigh
Load capacitance mismatch (9pF vs 15pF) is critical.
Package risklow
Package size is identical.
Sourcing riskmedium
Switching manufacturers may have supply chain implications.
Can it be replaced directly?
No direct drop-in replacement was found. The closest functional alternative, TST TZ0308D, has a different load capacitance and requires engineering validation.
Best replacement path
The best path is to find a 40MHz crystal in a 3.2x2.5mm package with a 15pF load capacitance. TST TZ0308D is a functional match but its 9pF load capacitance is a high risk.
Main risk
The primary risk is the load capacitance mismatch, which can cause frequency shifting or failure to oscillate.
Recommended alternatives
Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.
Alternative comparison matrix
| Feature / factor | TXM40M0004322HBCEO00T | TZ0308D | Alt 2 | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Frequency | 40 MHz | 40 MHz | 40 MHz — Frequency matches. | ||
| Package | SMD 3.2x2.5mm | SMD 3.2x2.5mm | SMD 3.2x2.5mm — Package dimensions match. | ||
| Load Capacitance | 15 pF | 9 pF | 9 pF — Mismatch requires circuit re-evaluation. | ||
| Temperature | -40°C to 85°C | -30°C to 85°C | -30°C to 85°C — Candidate has a narrower operating temperature range. | ||
| Pinout | null | 4 | 4 — Target pin count is missing, requires datasheet verification. |