18B20
I-CORE
Needs validationmedium risk
A functional alternative 1-Wire sensor that requires review of its narrower operating temperature and voltage range.
Best Alternatives to DS18B20-MS
The DS18B20-MS is a popular 1-Wire digital temperature sensor. Finding a replacement involves matching the 1-Wire protocol, package, and key electrical parameters like temperature range and accuracy.
AI replacement insight
Electrical riskmedium
Supply voltage and operating temperature ranges are narrower.
Package risklow
Common packages are available, but specific form factor must be verified.
Firmware risklow
1-Wire protocol is standard, but command timing may have minor variations.
Can it be replaced directly?
Direct replacement for DS18B20-MS should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
Cross-reference to other '18B20' family parts from different vendors, paying close attention to parametric differences.
Main risk
The primary risk is a mismatch in operating temperature range, which is significantly narrower in many alternatives.
Recommended alternatives
1Alternative comparison matrix
| Feature / factor | DS18B20-MS | 18B20 | Alt 2 | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Interface | 1-Wire | 1-Wire | 1-Wire — Protocol matches. | ||
| Package | TO-92, SOP8, MSOP8 | TO-92, SOP8, MSOP8 | TO-92, SOP8, MSOP8 — Family matches, specific package must be verified. | ||
| Pinout | null | null | null — Pinout not available, requires datasheet review. | ||
| Voltage | 2.5V to 5.5V | 3.0V - 5.5V | 3.0V - 5.5V — Narrower supply range, not compatible with <3.0V operation. | ||
| Temperature | -55°C to +125°C | -40°C to +85°C | -40°C to +85°C — Significantly narrower operating temperature range. | ||
| Accuracy | ±0.4°C | ±0.5°C | ±0.5°C — Slightly lower accuracy. |
Application & sourcing insights
Questions & answers
Verified drop-in options for DS18B20-MS are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.