AC0201FR-07221KL Equivalent & Substitute Parts

Part Overview

The AC0201FR-07221KL is a 221 kOhms ±1% thick film chip resistor in 0201 package (0603 metric) rated for 0.05W power dissipation. This automotive-grade component meets AEC-Q200 qualification with moisture-resistant construction and operates across -55°C to 155°C. The part is currently active in production with 821 units in stock.

Equivalent and substitute parts are necessary when the primary part experiences supply constraints, extended lead times, or when design requirements permit selection from qualified alternatives meeting identical electrical and mechanical specifications.

Key Parameters

Parameter	Value
Resistance	221 kOhms
Tolerance	±1%
Power Rating	0.05W (1/20W)
Package	0201 (0603 Metric)
Composition	Thick Film
Temperature Coefficient	±200ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Terminations	2
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the AC0201FR-07221KL is determined by strict equivalence across the following parameters:

Resistance value: 221 kOhms
Tolerance: ±1%
Power rating: 0.05W
Package designation: 0201 (0603 Metric)
Composition: Thick Film
Temperature coefficient: ±200ppm/°C
Termination count: 2
RoHS and MSL compliance

Parts are grouped as direct substitutes when all electrical and mechanical parameters match. Upgrade designations indicate parts with extended operating temperature ranges or enhanced feature sets that maintain backward compatibility. Product status (Active vs. Not For New Designs) is noted for procurement planning but does not affect electrical interchangeability.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Operating Temp	Product Status	Inventory (Pcs)
AC0201FR-07221KL	YAGEO	221 kOhms	±1%	0.05	0201	±200ppm/°C	-55°C ~ 155°C	Active	821
RC0201FR-07221KL	YAGEO	221 kOhms	±1%	0.05	0201	±200ppm/°C	-55°C ~ 125°C	Active	16520
CRCW0201221KFNED	Vishay Dale	221 kOhms	±1%	0.05	0201	±200ppm/°C	-55°C ~ 155°C	Active	9905
RK73H1HTTC2213F	KOA Speer Electronics, Inc.	221 kOhms	±1%	0.05	0201	±200ppm/°C	-55°C ~ 155°C	Not For New Designs	12805
ERJ-1GNF2213C	Panasonic Electronic Components	221 kOhms	±1%	0.05	0201	±200ppm/°C	-55°C ~ 125°C	Active	86443

Engineering Selection Recommendations

AC0201FR-07221KL (Primary): YAGEO automotive-grade part with AEC-Q200 qualification. Suitable for applications requiring full -55°C to 155°C operating range with moisture-resistant construction.

RC0201FR-07221KL (Upgrade Alternative): YAGEO part with higher inventory availability (16,520 units). Operating temperature limited to -55°C to 125°C. Select when thermal environment does not exceed 125°C and supply priority is critical.

CRCW0201221KFNED (Direct Equivalent): Vishay Dale thick film resistor matching full temperature range (-55°C to 155°C). Provides cross-manufacturer sourcing option with 9,905 units available.

RK73H1HTTC2213F (Legacy Option): KOA Speer AEC-Q200 qualified part with full temperature range support. Marked "Not For New Designs" status; use only for replacement or legacy system maintenance where design continuity is required.

ERJ-1GNF2213C (High Availability): Panasonic part with largest inventory (86,443 units). Operating temperature range -55°C to 125°C. Suitable for applications not requiring extended high-temperature operation above 125°C.

Frequently Asked Questions (FAQ)

Q: Can RC0201FR-07221KL replace AC0201FR-07221KL in all applications?

A: RC0201FR-07221KL is electrically equivalent but has a reduced operating temperature maximum of 125°C versus 155°C for the AC0201FR-07221KL. Substitution is valid only when the application's maximum operating temperature does not exceed 125°C.

Q: What is the difference between automotive-grade (AEC-Q200) and standard thick film resistors?

A: AEC-Q200 qualification indicates the part meets automotive reliability standards. AC0201FR-07221KL and RK73H1HTTC2213F carry this rating. Non-automotive parts (RC0201FR-07221KL, CRCW0201221KFNED, ERJ-1GNF2213C) do not have AEC-Q200 certification.

Q: Are all substitute parts in the same 0201 package?

A: Yes. All listed parts use the 0201 (0603 metric) package with identical dimensions: 0.024" L × 0.012" W (0.60mm × 0.30mm) and maximum seated height of 0.010" (0.26mm).

Q: Why is RK73H1HTTC2213F marked "Not For New Designs"?

A: This designation indicates the manufacturer has discontinued active development for new applications. The part remains available for existing designs and replacement purposes but should not be selected for new product development.

Q: Which substitute offers the best supply availability?

A: ERJ-1GNF2213C from Panasonic has the highest inventory at 86,443 units. However, this part operates only to 125°C maximum, so selection depends on thermal requirements.

Q: Do all parts meet RoHS3 and MSL 1 requirements?

A: Yes. All listed parts are ROHS3 compliant with MSL rating of 1 (Unlimited moisture sensitivity level).

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