RT0402FRE0784R5L Equivalent & Substitute Parts

Part Overview

The RT0402FRE0784R5L is a 0402 (1005 Metric) thin film chip resistor manufactured by YAGEO, rated at 84.5 Ohms with ±1% tolerance and 0.063W (1/16W) power dissipation. This component is actively produced and ROHS3 compliant, designed for general-purpose SMD applications requiring standard precision resistive elements. Substitute parts are identified to provide alternatives with improved tolerance specifications, enhanced temperature stability, or specific compliance certifications while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Resistance	84.5 Ohms
Tolerance	±1%
Power Rating	0.063W (1/16W)
Package / Case	0402 (1005 Metric)
Composition	Thin Film
Operating Temperature Range	-55°C ~ 155°C
Moisture Sensitivity Level	1 (Unlimited)
Number of Terminations	2
Size / Dimension	0.039" L x 0.020" W (1.00mm x 0.50mm)

Substitute Part Grouping Explanation

Substitution eligibility for the RT0402FRE0784R5L is determined by the following mandatory parameters:

Resistance value: 84.5 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 ~ 155°C (minimum requirement)
Number of terminations: 2 (exact match required)

Substitute parts identified below meet all mandatory electrical and mechanical parameters. Variations in tolerance, temperature coefficient, and compliance certifications represent upgrades or alternative specifications within the same functional category.

Parameter Comparison

Parameter	RT0402FRE0784R5L (Main)	CPF0402B84R5E1	ERA-2AEB84R5X	RN73C1E84R5BTDF
Manufacturer	YAGEO	TE Connectivity Passive Product	Panasonic Electronic Components	TE Connectivity Passive Product
Resistance	84.5 Ohms	84.5 Ohms	84.5 Ohms	84.5 Ohms
Tolerance	±1%	±0.1%	±0.1%	±0.1%
Power Rating	0.063W (1/16W)	0.063W (1/16W)	0.063W (1/16W)	0.063W (1/16W)
Package / Case	0402 (1005 Metric)	0402 (1005 Metric)	0402 (1005 Metric)	0402 (1005 Metric)
Composition	Thin Film	Thin Film	Thin Film	Thin Film
Temperature Coefficient	±50ppm/°C	±25ppm/°C	±25ppm/°C	±10ppm/°C
Operating Temperature	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C
Size / Dimension	0.039" L x 0.020" W (1.00mm x 0.50mm)	0.039" L x 0.020" W (1.00mm x 0.50mm)	0.039" L x 0.020" W (1.00mm x 0.50mm)	0.039" L x 0.020" W (1.00mm x 0.50mm)
Height - Seated (Max)	0.014" (0.35mm)	0.014" (0.35mm)	0.016" (0.40mm)	0.014" (0.35mm)
RoHS Status	ROHS3 Compliant	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active
Automotive Rating	None	None	AEC-Q200	None

Engineering Selection Recommendations

RT0402FRE0784R5L (Main Part): ROHS3 compliant, standard tolerance (±1%), suitable for general-purpose applications. Active product status with established supply chain.

CPF0402B84R5E1: Offers improved tolerance (±0.1%) and reduced temperature coefficient (±25ppm/°C) compared to the main part. However, this part is RoHS non-compliant, which may restrict use in regulated applications or regions with RoHS requirements.

ERA-2AEB84R5X: Provides ±0.1% tolerance, ±25ppm/°C temperature coefficient, and includes AEC-Q200 automotive qualification. ROHS3 compliant. Height specification is 0.016" (0.40mm) versus 0.014" (0.35mm) for the main part; verify PCB clearance in space-constrained designs. Suitable for automotive and high-reliability applications.

RN73C1E84R5BTDF: Delivers the tightest temperature coefficient specification (±10ppm/°C) with ±0.1% tolerance. ROHS3 compliant. Optimal for applications requiring superior temperature stability. REACH status listed as Vendor Undefined; confirm compliance requirements for your application.

Frequently Asked Questions (FAQ)

Q: Can I substitute the RT0402FRE0784R5L with any of these parts directly?

A: Yes, all listed substitute parts maintain identical resistance value (84.5 Ohms), power rating (0.063W), package (0402), and composition (thin film). Electrical and mechanical compatibility is preserved. Verify specific compliance requirements (RoHS, REACH, AEC-Q200) for your application before selection.

Q: What is the difference between ±1% and ±0.1% tolerance?

A: Tolerance specifies the maximum deviation from the nominal resistance value. The main part (±1%) allows up to ±0.845 Ohms deviation. Substitute parts with ±0.1% tolerance allow only ±0.0845 Ohms deviation, providing tighter resistance control suitable for precision circuits.

Q: Does the height difference of ERA-2AEB84R5X affect compatibility?

A: ERA-2AEB84R5X has a maximum seated height of 0.016" (0.40mm) compared to 0.014" (0.35mm) for other parts. This 0.002" (0.05mm) difference is minimal but must be verified against PCB design clearances, particularly in high-density layouts or applications with height constraints.

Q: Why is CPF0402B84R5E1 listed as RoHS non-compliant?

A: CPF0402B84R5E1 does not meet ROHS3 compliance standards. If your application, region, or customer requirements mandate RoHS compliance, select ERA-2AEB84R5X or RN73C1E84R5BTDF instead.

Q: What does AEC-Q200 certification mean?

A: AEC-Q200 is an automotive qualification standard for passive components. ERA-2AEB84R5X carries this certification, indicating suitability for automotive applications requiring enhanced reliability and temperature cycling performance.

Q: Which substitute part offers the best temperature stability?

A: RN73C1E84R5BTDF provides the lowest temperature coefficient at ±10ppm/°C, compared to ±25ppm/°C for CPF0402B84R5E1 and ERA-2AEB84R5X, and ±50ppm/°C for the main part. This specification indicates superior resistance stability across the operating temperature range.

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