AC0201FR-0744R2L Equivalent & Substitute Parts

Part Overview

The AC0201FR-0744R2L is a 44.2 Ohms ±1% thick film chip resistor in 0201 package (0.60mm × 0.30mm) rated for 0.05W power dissipation. This YAGEO component features automotive AEC-Q200 qualification and moisture resistance, designed for high-reliability applications across -55°C to 155°C operating range. Substitute parts are necessary to address inventory availability, extended lead times, or design flexibility across multiple qualified manufacturers while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Specification
Resistance Value	44.2 Ohms
Tolerance	±1%
Power Rating	0.05W (1/20W)
Package / Case	0201 (0603 Metric)
Composition	Thick Film
Temperature Coefficient	±200ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Moisture Sensitivity Level	MSL 1 (Unlimited)
RoHS Status	ROHS3 Compliant
Packaging	Tape & Reel (TR)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters:

Electrical Parameters: Resistance value (44.2 Ohms), tolerance (±1%), power rating (0.05W), and temperature coefficient (±200ppm/°C) must be identical
Package Compatibility: 0201 (0603 Metric) package with matching physical dimensions (0.024" L × 0.012" W / 0.60mm × 0.30mm) and height (≤0.010" / 0.26mm seated maximum)
Environmental Compliance: ROHS3 compliance and MSL 1 rating required for all substitutes
Composition: Thick film construction maintained across all alternatives

All five substitute parts meet these criteria. Operating temperature range variations (125°C vs. 155°C maximum) and automotive certification differences do not preclude substitution but are noted for application-specific requirements.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff	Op. Temp Range	AEC-Q200	Product Status	Inventory (Pcs)
AC0201FR-0744R2L	YAGEO	44.2 Ω	±1%	0.05	±200ppm/°C	-55°C ~ 155°C	Yes	Active	927
RC0201FR-0744R2L	YAGEO	44.2 Ω	±1%	0.05	±200ppm/°C	-55°C ~ 125°C	No	Active	7280
CRCW020144R2FNED	Vishay Dale	44.2 Ω	±1%	0.05	±200ppm/°C	-55°C ~ 155°C	No	Active	10298
RK73H1HTTC44R2F	KOA Speer Electronics, Inc.	44.2 Ω	±1%	0.05	±200ppm/°C	-55°C ~ 155°C	Yes	Not For New Designs	20052
RMCF0201FT44R2	Stackpole Electronics Inc	44.2 Ω	±1%	0.05	±200ppm/°C	-55°C ~ 155°C	Yes	Active	4507
ERJ-1GNF44R2C	Panasonic Electronic Components	44.2 Ω	±1%	0.05	±200ppm/°C	-55°C ~ 125°C	No	Active	67424

Engineering Selection Recommendations

Primary Substitutes (Active Status, Full Temperature Range)

RMCF0201FT44R2 (Stackpole Electronics Inc) and CRCW020144R2FNED (Vishay Dale) are preferred alternatives. Both maintain the full -55°C to 155°C operating range, carry ROHS3 compliance, and are in active production. RMCF0201FT44R2 includes AEC-Q200 rating matching the original specification.

Secondary Substitutes (Active Status, Reduced Temperature Range)

RC0201FR-0744R2L (YAGEO) and ERJ-1GNF44R2C (Panasonic) are suitable for applications where maximum operating temperature does not exceed 125°C. Both are actively produced with high inventory availability. RC0201FR-0744R2L maintains YAGEO series continuity.

Legacy Substitute (Not For New Designs)

RK73H1HTTC44R2F (KOA Speer Electronics, Inc.) carries "Not For New Designs" status despite AEC-Q200 qualification and full temperature range support. Use only for legacy system maintenance or repair applications where design freeze is established.

Frequently Asked Questions (FAQ)

Q: Can I substitute any of these parts interchangeably in my design?

A: All listed parts are electrically and mechanically equivalent within the 0201 package. However, verify your application's maximum operating temperature requirement. Parts rated to 125°C (RC0201FR-0744R2L, ERJ-1GNF44R2C) are not suitable for designs requiring sustained operation above 125°C.

Q: What is the difference between AEC-Q200 and non-AEC-Q200 variants?

A: AEC-Q200 certification indicates automotive-grade qualification with enhanced reliability testing. AC0201FR-0744R2L, RK73H1HTTC44R2F, and RMCF0201FT44R2 carry this rating. Non-certified variants (CRCW020144R2FNED, RC0201FR-0744R2L, ERJ-1GNF44R2C) are suitable for non-automotive applications or where automotive qualification is not required.

Q: Why would I choose one substitute over another if they are all equivalent?

A: Selection factors include inventory availability, lead time, manufacturer preference, cost, and product lifecycle status. ERJ-1GNF44R2C offers the highest inventory (67,424 pcs). RK73H1HTTC44R2F should be avoided for new designs despite availability. RMCF0201FT44R2 provides the best balance of AEC-Q200 qualification and active production status.

Q: Are all parts ROHS3 compliant?

A: Yes. All listed parts carry ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, meeting modern environmental and reliability standards.

Q: What happens if I use a part rated to 125°C in a circuit operating at 155°C?

A: Operating beyond the specified temperature range voids the manufacturer's reliability guarantees and may cause premature failure. Use only parts rated to your maximum operating temperature.

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