Is there a pin-compatible replacement for AR05BTCW3502?

Yes, several alternatives like PTFR0805B33K0N9 and RT0805BRD0733KL share the same 0805 package and pinout. However, they are not exact electrical matches and require review of parametric differences.

What risks should I check before replacing AR05BTCW3502?

Verify your circuit's tolerance to changes in resistance (candidates are 33kΩ-36kΩ vs. 35kΩ target) and temperature coefficient (TCR), as some alternatives have weaker stability.

AR05BTCW3502 Alternatives, Datasheet & Cross Reference | Viking Tech

Finding a replacement for the AR05BTCW3502, a 35kΩ 0.1% 0805 precision resistor, involves balancing resistance value, tolerance, and TCR. Several parametric alternatives exist with slight variations.

AI replacement insight

Electrical riskmedium

Resistance and TCR differences require circuit analysis.

Package risklow

All viable candidates share the same 0805 package.

Can it be replaced directly?

No exact drop-in replacement was found. All viable candidates have parametric differences, primarily in resistance value or temperature coefficient (TCR), requiring engineering review.

Best replacement path

Consider PTFR0805B33K0N9 for its improved TCR and power, if the 6% lower resistance is acceptable. For a closer resistance value, TC0550B3602T5G is an option but has a weaker TCR.

Main risk

The main risk is the deviation in resistance value, which can affect the performance of precision circuits like voltage dividers or filter networks.

Recommended alternatives

A parametric alternative in the same 0805 package with improved TCR and power, but a slightly lower resistance of 33kΩ.

View details

Alternative comparison matrix

Feature / factor	AR05BTCW3502	PTFR0805B33K0N9	TC0550B3602T5G	Compatibility / risk
Package	0805	0805	0805	0805 — Same package and pin count.; TC0550B3602T5G: Same package and pin count.
Resistance	35kΩ	33kΩ	36kΩ	33kΩ / 36kΩ — Candidate resistance is ~5.7% lower.; TC0550B3602T5G: Candidate resistance is ~2.8% higher.
Tolerance	±0.1%	±0.1%	±0.1%	±0.1% — matched; TC0550B3602T5G: matched
Tcr	±25ppm/°C	±10ppm/℃	50 ppm/°C	±10ppm/℃ / 50 ppm/°C — Candidate has better temperature stability.; TC0550B3602T5G: Candidate has weaker temperature stability.
Power	0.125W	0.13W	0.125W	0.13W / 0.125W — Slightly higher power rating.; TC0550B3602T5G: matched

Application & sourcing insights

Questions & answers

PTFR0805B33K0N9 is a strong candidate, offering better TCR and power, but with a 33kΩ resistance. If resistance must be closer, TC0550B3602T5G has 36kΩ but a weaker TCR. Both require review.