RT0402FRE07845RL Equivalent & Substitute Parts

Part Overview

The RT0402FRE07845RL is a 0402 (1005 Metric) thin film chip resistor manufactured by YAGEO with a resistance value of 845 Ohms and ±1% tolerance. This surface-mount device is rated for 0.063W (1/16W) power dissipation and operates across the temperature range of -55°C to 155°C. The part is ROHS3 compliant and carries MSL 1 (Unlimited) moisture sensitivity rating, indicating suitability for standard storage and handling conditions. Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and compliance certifications are maintained across alternative manufacturers.

Key Parameters

Parameter	Value
Resistance	845 Ohms
Tolerance	±1%
Power Rating	0.063W (1/16W)
Package / Case	0402 (1005 Metric)
Composition	Thin Film
Operating Temperature Range	-55°C to 155°C
Temperature Coefficient	±50ppm/°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)
Packaging Type	Tape & Reel (TR)

Substitute Part Grouping Explanation

Substitute parts for the RT0402FRE07845RL are qualified based on the following criteria:

Mandatory Compatibility Parameters:

Resistance value: 845 Ohms (exact match required)
Package / Case: 0402 (1005 Metric) (exact match required)
Power rating: 0.063W, 1/16W (exact match required)
Composition: Thin Film (exact match required)
Operating temperature range: -55°C to 155°C (minimum requirement)
RoHS compliance: ROHS3 Compliant (required)
Moisture sensitivity: MSL 1 (Unlimited) (required)

Allowable Variations:

Tolerance: May be equal to or tighter than ±1%
Temperature coefficient: May be equal to or lower than ±50ppm/°C
Manufacturer: Different manufacturers acceptable if all mandatory parameters are met
Additional certifications: AEC-Q200 automotive qualification is permissible as an upgrade feature

All four substitute parts listed meet these criteria and are direct functional equivalents for the RT0402FRE07845RL.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power Rating	Temp Coeff	Operating Temp	Package	RoHS	MSL
RT0402FRE07845RL	YAGEO	845 Ω	±1%	0.063W	±50ppm/°C	-55°C ~ 155°C	0402	ROHS3	1
RT0402BRD07845RL	YAGEO	845 Ω	±0.1%	0.063W	±25ppm/°C	-55°C ~ 155°C	0402	ROHS3	1
CPF0402B845RE1	TE Connectivity Passive Product	845 Ω	±0.1%	0.063W	±25ppm/°C	-55°C ~ 155°C	0402	ROHS3	1
ERA-2AEB8450X	Panasonic Electronic Components	845 Ω	±0.1%	0.063W	±25ppm/°C	-55°C ~ 155°C	0402	ROHS3	1
RN73C1E845RBTDF	TE Connectivity Passive Product	845 Ω	±0.1%	0.063W	±10ppm/°C	-55°C ~ 155°C	0402	ROHS3	1

Engineering Selection Recommendations

All four substitute parts maintain full electrical and mechanical compatibility with the RT0402FRE07845RL. Selection among these alternatives should be based on the following factors:

RT0402BRD07845RL (YAGEO): Same manufacturer as the primary part with improved tolerance (±0.1%) and lower temperature coefficient (±25ppm/°C). Suitable for applications requiring tighter tolerance specifications while maintaining YAGEO supply chain continuity.

CPF0402B845RE1 (TE Connectivity Passive Product): Offers ±0.1% tolerance and ±25ppm/°C temperature coefficient. Provides alternative sourcing from TE Connectivity with equivalent performance characteristics.

ERA-2AEB8450X (Panasonic Electronic Components): Provides ±0.1% tolerance and ±25ppm/°C temperature coefficient with AEC-Q200 automotive qualification. Suitable for applications requiring automotive-grade reliability and traceability.

RN73C1E845RBTDF (TE Connectivity Passive Product): Delivers the tightest temperature coefficient specification at ±10ppm/°C with ±0.1% tolerance. Appropriate for precision applications requiring superior temperature stability.

All parts carry ROHS3 compliance and MSL 1 rating, confirming suitability for standard manufacturing and storage environments.

Frequently Asked Questions (FAQ)

Q: Can RT0402BRD07845RL be used as a direct replacement for RT0402FRE07845RL?

A: Yes. Both parts share identical resistance (845 Ohms), package (0402), power rating (0.063W), and operating temperature range (-55°C to 155°C). The RT0402BRD07845RL offers improved tolerance (±0.1% vs ±1%) and lower temperature coefficient (±25ppm/°C vs ±50ppm/°C), making it a compatible upgrade.

Q: What is the difference between the substitute parts?

A: All substitute parts maintain the same 845 Ohm resistance, 0402 package, and 0.063W power rating. Primary differences are tolerance specifications (all substitutes offer ±0.1% vs the original ±1%) and temperature coefficients (ranging from ±10ppm/°C to ±25ppm/°C). ERA-2AEB8450X includes AEC-Q200 automotive certification; RN73C1E845RBTDF provides the lowest temperature coefficient.

Q: Are there any physical dimension differences between these parts?

A: All parts conform to the 0402 (1005 Metric) package standard with dimensions of 0.039" L x 0.020" W (1.00mm x 0.50mm). Height-seated maximum values are 0.014" (0.35mm) for most parts, with ERA-2AEB8450X at 0.016" (0.40mm). These minor variations remain within standard PCB design tolerances.

Q: Which substitute part should be selected for precision applications?

A: RN73C1E845RBTDF offers the tightest temperature coefficient specification at ±10ppm/°C, combined with ±0.1% tolerance. This combination provides superior temperature stability for precision circuit applications.

Q: Is the ERA-2AEB8450X suitable for automotive applications?

A: Yes. ERA-2AEB8450X carries AEC-Q200 automotive qualification, indicating compliance with automotive reliability and quality standards. This part is appropriate for automotive-grade circuit designs.

Q: Do all substitute parts maintain ROHS3 compliance?

A: Yes. All substitute parts listed are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the compliance profile of the RT0402FRE07845RL.

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