Is there a pin-compatible replacement for PTFR0603B1K00N9?

Yes, several 0603 resistors are pin-compatible. TD03E1001BT matches key electricals but lacks AEC-Q200. Others like ERA3AEB102V match the package and AEC-Q200 but have a different TCR.

What risks should I check before replacing PTFR0603B1K00N9?

Verify two key parameters: 1) If your application is automotive, ensure the replacement is AEC-Q200 qualified. 2) Check if your circuit can tolerate a higher Temperature Coefficient (TCR), as many alternatives have ±25ppm/°C or higher compared to the original's ±10ppm/°C.

PTFR0603B1K00N9 Alternatives, Datasheet & Cross Reference | C&B RESI

PTFR0603B1K00N9 is a high-precision, AEC-Q200 qualified 1kΩ thin film resistor. Finding a substitute requires matching its tight tolerance, low TCR, and automotive-grade qualification.

AI replacement insight

Electrical riskmedium

Many alternatives have a worse TCR, which can impact circuit precision over temperature.

Package risklow

All suggested alternatives are in the same 0603 package.

Can it be replaced directly?

No perfect 1:1 replacement was found. TD03E1001BT matches electrical specs but lacks AEC-Q200 qualification. Other candidates have a higher (worse) Temperature Coefficient (TCR).

Best replacement path

For automotive use, consider ERA3AEB102V or AT0603BRD071KL if a higher TCR of ±25ppm/°C is acceptable. For non-automotive use, TD03E1001BT is a strong electrical match.

Main risk

The main risks are using a non-AEC-Q200 part in an automotive design or a part with higher TCR in a temperature-sensitive circuit.

Recommended alternatives

Matches all key electrical specs but is not AEC-Q200 qualified, requiring review for automotive applications.

View details

Alternative comparison matrix

Feature / factor	PTFR0603B1K00N9	TD03E1001BT	AT0603BRD071KL	ERA3AEB102V	Compatibility / risk
Package	0603	0603	0603	0603	0603 — Form factor matches.; AT0603BRD071KL: Form factor matches.; ERA3AEB102V: Form factor matches.
Resistance	1kΩ, ±0.1%	1kΩ, ±0.1%	-	-	1kΩ, ±0.1% — Resistance and tolerance match.
Power	0.1W	0.1W	0.1W	0.1W	0.1W — Power rating matches.; AT0603BRD071KL: Power rating matches (assuming 0.1W from datasheet, not 1.0W from artifact).; ERA3AEB102V: Power rating matches.
Tcr	±10ppm/℃	±10ppm/℃	±25 ppm/°C	±25 ppm/°C	±10ppm/℃ / ±25 ppm/°C — Temperature coefficient matches.; AT0603BRD071KL: TCR is higher (worse) than target.; ERA3AEB102V: TCR is higher (worse) than target.
Application	AEC-Q200	No	AEC-Q200	AEC-Q200	No / AEC-Q200 — Candidate is not AEC-Q200 qualified.; AT0603BRD071KL: Both are AEC-Q200 qualified.; ERA3AEB102V: Both are AEC-Q200 qualified.

Application & sourcing insights

Questions & answers

For automotive use, Panasonic's ERA3AEB102V is a good alternative if a TCR of ±25ppm/°C is acceptable. For general use, FH's TD03E1001BT is an electrical match but is not AEC-Q200 qualified.