Equivalent & Substitute Parts for RT0805FRE074K22L

Part Overview

The RT0805FRE074K22L is a 4.22 kOhms ±1% thin film chip resistor in 0805 (2012 Metric) package manufactured by YAGEO. This surface-mount device is rated for 0.125W (1/8W) power dissipation and operates across -55°C to 155°C. The part is Active status and ROHS3 compliant. Equivalent and substitute parts are identified when design requirements allow tolerance relaxation, power rating increases, or when alternative manufacturers meet the same electrical and mechanical specifications.

Key Parameters

Parameter	Value
Resistance	4.22 kOhms
Tolerance	±1%
Power Rating	0.125W (1/8W)
Package	0805 (2012 Metric)
Composition	Thin Film
Temperature Coefficient	±50ppm/°C
Operating Temperature Range	-55°C to 155°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Electrical Parameters: Resistance value (4.22 kOhms) and package type (0805) must remain constant. Tolerance may be tightened (lower tolerance value acceptable). Power rating may be increased. Temperature coefficient may be improved (lower absolute value acceptable).

Mechanical Parameters: Package dimensions and termination count must match. Height variation within supplier specifications is acceptable.

Compliance Parameters: RoHS3 compliance and MSL rating must be maintained or improved.

Substitute parts are grouped into three categories:

Upgrade (Tolerance Tightening): Parts with ±0.1% or ±0.5% tolerance replacing ±1% specification
Direct Equivalent (Different Manufacturer): Parts meeting identical electrical specifications from alternative manufacturers
Upgrade (Power Rating Increase): Parts with 0.25W rating replacing 0.125W specification

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Features	Inventory
RT0805FRE074K22L	YAGEO	4.22 kΩ	±1%	0.125	±50	—	775 Pcs
RT0805BRD074K22L	YAGEO	4.22 kΩ	±0.1%	0.125	±25	—	6942 Pcs
RT0805DRD074K22L	YAGEO	4.22 kΩ	±0.5%	0.125	±25	—	11742 Pcs
7-2176092-2	TE Connectivity	4.22 kΩ	±0.1%	0.25	±25	—	2223 Pcs
ERA-6AEB4221V	Panasonic	4.22 kΩ	±0.1%	0.125	±25	AEC-Q200	12860 Pcs
ERA-6AED4221V	Panasonic	4.22 kΩ	±0.5%	0.125	±25	AEC-Q200	19599 Pcs
RG2012P-4221-B-T5	Susumu	4.22 kΩ	±0.1%	0.125	±25	Anti-Sulfur, AEC-Q200	4125 Pcs

Engineering Selection Recommendations

YAGEO RT0805BRD074K22L: Tighter tolerance (±0.1%) and improved temperature coefficient (±25ppm/°C) within same manufacturer series. Maintains 0.125W power rating and 0805 package. ROHS3 compliant. Suitable for applications requiring enhanced accuracy over original ±1% specification.

YAGEO RT0805DRD074K22L: Intermediate tolerance (±0.5%) with improved temperature coefficient (±25ppm/°C). Maintains 0.125W power rating and 0805 package. ROHS3 compliant. Provides cost-effective tolerance upgrade.

TE Connectivity 7-2176092-2: Increased power rating (0.25W) with ±0.1% tolerance and ±25ppm/°C temperature coefficient. Suitable for applications requiring higher power dissipation capability. ROHS3 compliant. Height specification 0.026" (0.65mm) versus 0.024" (0.60mm) for original part.

Panasonic ERA-6AEB4221V: ±0.1% tolerance with AEC-Q200 automotive qualification. Maintains 0.125W power rating. ROHS3 compliant. Suitable for automotive applications requiring enhanced reliability certification.

Panasonic ERA-6AED4221V: ±0.5% tolerance with AEC-Q200 automotive qualification. Maintains 0.125W power rating. ROHS3 compliant. Highest inventory availability (19599 Pcs). Suitable for automotive applications with intermediate tolerance requirements.

Susumu RG2012P-4221-B-T5: ±0.1% tolerance with anti-sulfur coating and AEC-Q200 automotive qualification. Maintains 0.125W power rating. Height specification 0.020" (0.50mm). ROHS3 compliant. Suitable for automotive and corrosive environment applications.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with tighter tolerance than the original specification?

A: Yes. A part with ±0.1% tolerance meets all requirements of a ±1% specification. Tighter tolerance represents improved accuracy and is functionally compatible.

Q: What is the difference between the YAGEO and Panasonic options?

A: YAGEO parts are industrial-grade thin film resistors. Panasonic ERA-6A series parts include AEC-Q200 automotive qualification, suitable for automotive and high-reliability applications. Electrical specifications (resistance, tolerance, power rating) are equivalent when tolerance grades match.

Q: Can I substitute the 0.125W part with the TE Connectivity 0.25W part?

A: Yes. The 0.25W (1/4W) rating is a higher power capability. If your circuit requires only 0.125W dissipation, the 0.25W part operates safely with margin. Physical dimensions remain 0805 package; height increases from 0.024" to 0.026", which is acceptable for standard PCB layouts.

Q: What does AEC-Q200 certification mean?

A: AEC-Q200 is an automotive electronics qualification standard. Parts meeting this specification are qualified for automotive applications with enhanced reliability testing. Non-automotive applications may use AEC-Q200 parts without restriction.

Q: Does the anti-sulfur coating on the Susumu part affect compatibility?

A: No. Anti-sulfur coating is an additional protective feature that prevents sulfur-induced corrosion in high-sulfur environments. It does not affect electrical performance or PCB compatibility. The 0805 package and electrical specifications remain identical.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance, meeting environmental and hazardous substance restrictions.

Q: What is the significance of temperature coefficient differences?

A: Temperature coefficient indicates resistance value change per degree Celsius. The original part has ±50ppm/°C; substitute parts offer ±25ppm/°C. Lower temperature coefficient means better stability across temperature variations. This is an improvement, not a limitation.

Q: Can I mix different substitute parts in the same circuit board?

A: Yes, provided your circuit design allows tolerance variation. If all resistors must match within ±1%, use parts with identical tolerance grades. If tighter tolerance is required, use ±0.1% parts exclusively.

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