RT0805FRE0742K2L Equivalent & Substitute Parts

Part Overview

The RT0805FRE0742K2L is a 42.2 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 with a temperature coefficient of ±50ppm/°C and operates across -55°C to 155°C. The part is ROHS3 compliant, REACH unaffected, and carries MSL 1 (unlimited moisture sensitivity level). Equivalent and substitute parts are identified when they maintain the same resistance value, package footprint, and core electrical specifications while potentially offering improved tolerance, power rating, or automotive qualification.

Key Parameters

Parameter	Value
Resistance	42.2 kOhms
Tolerance	±1%
Power Rating	0.125W (1/8W)
Package / Case	0805 (2012 Metric)
Composition	Thin Film
Temperature Coefficient	±50ppm/°C
Operating Temperature Range	-55°C ~ 155°C
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the RT0805FRE0742K2L are qualified based on the following criteria:

Primary Substitution Criteria:

Identical resistance value: 42.2 kOhms
Identical package: 0805 (2012 Metric)
Identical composition: Thin Film
Identical operating temperature range: -55°C ~ 155°C
Identical MSL rating: 1 (Unlimited)
ROHS3 compliance maintained

Allowable Variations:

Tolerance may be equal or tighter (±1%, ±0.5%, or ±0.1%)
Power rating may be equal or higher (0.125W or 0.25W)
Temperature coefficient may be equal or lower (±50ppm/°C or ±25ppm/°C)
Manufacturer may differ
Automotive qualification (AEC-Q200) is an optional enhancement

Parts that meet these criteria are classified as direct equivalents or upgrades depending on whether they improve one or more electrical parameters.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (Watts)	Temp Coeff (ppm/°C)	Package	Height Max (mm)	Product Status	Special Features
RT0805FRE0742K2L	YAGEO	42.2 kOhms	±1%	0.125	±50	0805	0.60	Active	—
RT0805BRD0742K2L	YAGEO	42.2 kOhms	±0.1%	0.125	±25	0805	0.60	Active	Tighter tolerance, lower temp coeff
RT0805DRE0742K2L	YAGEO	42.2 kOhms	±0.5%	0.125	±50	0805	0.60	Active	Tighter tolerance
6-2176093-0	TE Connectivity Passive Product	42.2 kOhms	±0.1%	0.25	±25	0805	0.65	Active	Higher power rating, tighter tolerance
ERA-6AEB4222V	Panasonic Electronic Components	42.2 kOhms	±0.1%	0.125	±25	0805	0.60	Active	AEC-Q200 automotive qualified

Engineering Selection Recommendations

All substitute parts listed maintain active product status and ROHS3 compliance. Selection between equivalents depends on application requirements:

RT0805BRD0742K2L (YAGEO): Select when tighter tolerance (±0.1%) and lower temperature coefficient (±25ppm/°C) are required without changing power rating or manufacturer. Maintains identical footprint and height.

RT0805DRE0742K2L (YAGEO): Select when intermediate tolerance improvement (±0.5%) is acceptable and temperature coefficient remains at ±50ppm/°C. Maintains YAGEO series continuity.

6-2176093-0 (TE Connectivity): Select when higher power dissipation capability (0.25W vs 0.125W) is required alongside tighter tolerance (±0.1%) and lower temperature coefficient (±25ppm/°C). Note maximum seated height increases to 0.65mm; verify PCB clearance.

ERA-6AEB4222V (Panasonic): Select for automotive applications requiring AEC-Q200 qualification. Provides tighter tolerance (±0.1%), lower temperature coefficient (±25ppm/°C), and maintains 0.125W power rating and 0.60mm height identical to the main part.

Frequently Asked Questions (FAQ)

Q: Can RT0805BRD0742K2L replace RT0805FRE0742K2L in any application? A: Yes. RT0805BRD0742K2L is a direct upgrade offering tighter tolerance (±0.1% vs ±1%) and lower temperature coefficient (±25ppm/°C vs ±50ppm/°C) while maintaining identical power rating, package, and footprint. It is suitable for all applications where the original part is used.

Q: What is the difference between RT0805DRE0742K2L and RT0805BRD0742K2L? A: RT0805DRE0742K2L offers ±0.5% tolerance with ±50ppm/°C temperature coefficient. RT0805BRD0742K2L offers ±0.1% tolerance with ±25ppm/°C temperature coefficient. Both are YAGEO thin film resistors in 0805 package. Choose RT0805BRD0742K2L for superior stability; choose RT0805DRE0742K2L for moderate tolerance improvement at lower cost.

Q: Can 6-2176093-0 be used as a direct replacement? A: 6-2176093-0 is mechanically and electrically compatible but has a maximum seated height of 0.65mm compared to 0.60mm for the original part. Verify PCB clearance before substitution. The higher power rating (0.25W vs 0.125W) and tighter tolerance (±0.1%) make it suitable for applications requiring enhanced performance.

Q: Is ERA-6AEB4222V suitable for non-automotive applications? A: Yes. ERA-6AEB4222V meets AEC-Q200 automotive qualification but is not restricted to automotive use. It provides tighter tolerance (±0.1%), lower temperature coefficient (±25ppm/°C), and identical package and power rating to the original part, making it suitable for any application.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, matching the compliance status of RT0805FRE0742K2L.

Q: What is the MSL rating for all parts? A: All parts carry MSL 1 (Unlimited) moisture sensitivity level, indicating no special moisture control measures are required during storage or handling.

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