Is there a pin-compatible replacement for SDNT1608X103F3380FTF?

While no part is guaranteed to be a drop-in replacement without testing, SDNT1608X103F3450FTF is form-fit compatible (0603 package) and electrically very similar. The slight B-value difference requires verification for your application's precision needs.

What risks should I check before replacing SDNT1608X103F3380FTF?

The main risk is the B-value mismatch. Compare the R-T curves from the datasheets of the target and candidate parts. Ensure the substitute's temperature error is within your system's tolerance across the entire operating range.

SDNT1608X103F3380FTF Alternatives, Datasheet & Cross Reference | Shenzhen Sunlord Electronics Co., Ltd.

SDNT1608X103F3380FTF is a precision 10kΩ NTC thermistor in a 0603 package from Sunlord, featuring a ±1% tolerance on both resistance and its 3380K B-value. Finding a substitute requires matching the R-T curve closely.

AI replacement insight

Electrical risklow

B-value is very close (~2% deviation), but R-T curve should be checked.

Package risklow

Package is identical (0603), ensuring form and fit.

Firmware riskmedium

May require lookup table or coefficient adjustments if high precision is needed.

Can it be replaced directly?

No exact drop-in replacement was found. However, `SDNT1608X103F3450FTF` is a very strong functional alternative from the same manufacturer with nearly identical specifications.

Best replacement path

Other Sunlord SDNT1608 series parts like SDNT1608X103F3450FTF offer the closest match, with only a minor B-value deviation.

Main risk

The primary risk is a mismatch in the B-value constant, which defines the resistance-temperature curve. A small deviation can lead to temperature measurement errors.

Recommended alternatives

A 10kΩ 0603 NTC thermistor from the same manufacturer with identical ratings but a slightly different B-value.

View details

Alternative comparison matrix

Feature / factor	SDNT1608X103F3380FTF	SDNT1608X103F3450FTF	SDNT1608X103F3435FTF	ERTJ1VG103FM	Compatibility / risk
Package	0603 (1608 Metric)	0603 (1608 Metric)	0603 (1608 Metric)	0603 (1608 Metric)	0603 (1608 Metric) — Identical package ensures form-fit compatibility.; SDNT1608X103F3435FTF: Identical package ensures form-fit compatibility.; ERTJ1VG103FM: Identical package ensures form-fit compatibility.
Resistance	10 kΩ	10 kΩ	10 kΩ	10 kΩ	10 kΩ — Resistance at 25°C is identical.; SDNT1608X103F3435FTF: Resistance at 25°C is identical.; ERTJ1VG103FM: Resistance at 25°C is identical.
Tolerance	±1%	±1%	-	-	±1% — Resistance tolerance is identical.
B Value	3380 K	3450 K	3450 K	3435 K (at 25/85°C)	3450 K / 3435 K (at 25/85°C) — Slightly different B-value (~2% higher) will alter the R-T curve. Verification is required.; SDNT1608X103F3435FTF: Slightly different B-value (~2% higher) will alter the R-T curve. Verification is required. Note: B-value from attributes (3450K) differs from MPN encoding (3435K).; ERTJ1VG103FM: B-value is different and measured over a different temperature range (25/85°C vs 25/50°C), affecting the R-T curve.
Temperature	-55°C to +125°C	-55°C to +125°C	-55°C to +125°C	-40°C to 125°C	-55°C to +125°C / -40°C to 125°C — Operating temperature range is identical.; SDNT1608X103F3435FTF: Operating temperature range is identical.; ERTJ1VG103FM: Narrower operating temperature range on the low end.

Application & sourcing insights

Questions & answers

The Sunlord SDNT1608X103F3450FTF is the strongest alternative, sharing the same package, resistance, and tolerance, with only a minor difference in the B-value constant (3450K vs 3380K).