RT0402FRE0734KL Equivalent & Substitute Parts

Part Overview

The RT0402FRE0734KL is a 34 kOhms ±1% thin film chip resistor in 0402 (1005 Metric) package manufactured by YAGEO. This surface-mount resistor is rated for 0.063W (1/16W) power dissipation and operates across -55°C to 155°C. The part is ROHS3 compliant and carries MSL 1 (Unlimited) moisture sensitivity rating, making it suitable for general industrial and commercial applications.

Substitute parts are identified when equivalent resistance values, package dimensions, power ratings, and termination configurations match the original specification. Higher tolerance grades (±0.1% vs ±1%) and enhanced temperature coefficients represent performance upgrades rather than direct replacements, while maintaining full mechanical and electrical compatibility.

Key Parameters

Parameter	Value
Resistance	34 kOhms
Tolerance	±1%
Power Rating	0.063W (1/16W)
Package	0402 (1005 Metric)
Composition	Thin Film
Operating Temperature Range	-55°C to 155°C
Temperature Coefficient	±50ppm/°C
Terminations	2
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Resistance Value: Must be 34 kOhms
Package Type: Must be 0402 (1005 Metric)
Power Rating: Must be 0.063W (1/16W) minimum
Composition: Must be Thin Film
Termination Count: Must be 2
Compliance: Must maintain ROHS3 and MSL 1 ratings

Tolerance grades (±1%, ±0.1%, ±0.5%) are interchangeable when the substitute tolerance is equal to or tighter than the original specification. Temperature coefficient improvements (±25ppm/°C vs ±50ppm/°C) and operating temperature range extensions represent performance enhancements. Automotive-grade certifications (AEC-Q200) and anti-sulfur features are optional enhancements that do not affect base substitutability.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Temp Range (°C)	Package	Height Max (mm)	RoHS	MSL
RT0402FRE0734KL	YAGEO	34k	±1%	0.063	±50	-55 to 155	0402	0.35	ROHS3	1
RT0402BRD0734KL	YAGEO	34k	±0.1%	0.063	±25	-55 to 155	0402	0.35	ROHS3	1
CPF0402B34KE1	TE Connectivity	34k	±0.1%	0.063	±25	-55 to 155	0402	0.35	ROHS3	1
ERA-2AEB3402X	Panasonic	34k	±0.1%	0.063	±25	-55 to 155	0402	0.40	ROHS3	1
MCS04020D3402BE100	Vishay Beyschlag	34k	±0.1%	0.063	±25	-55 to 125	0402	0.37	ROHS3	1
RR0510P-3402-D	Susumu	34k	±0.5%	0.063	±25	-55 to 125	0402	0.40	ROHS3	1

Engineering Selection Recommendations

All listed substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity ratings, ensuring compatibility with standard PCB assembly and storage conditions.

RT0402BRD0734KL (YAGEO) provides direct substitution with improved tolerance (±0.1%) and temperature coefficient (±25ppm/°C) while maintaining identical operating temperature range (-55°C to 155°C) and package dimensions. This represents a performance upgrade within the same manufacturer family.

CPF0402B34KE1 (TE Connectivity Passive Product) offers equivalent performance specifications to RT0402BRD0734KL with ±0.1% tolerance and ±25ppm/°C temperature coefficient across the full -55°C to 155°C range.

ERA-2AEB3402X (Panasonic Electronic Components) includes AEC-Q200 automotive qualification, providing enhanced reliability for automotive and harsh environment applications. Tolerance and temperature coefficient match other upgraded options (±0.1%, ±25ppm/°C). Maximum seated height is 0.40mm versus 0.35mm for the original part.

MCS04020D3402BE100 (Vishay Beyschlag/Draloric/BC Components) features anti-sulfur construction with ±0.1% tolerance and ±25ppm/°C temperature coefficient. Operating temperature range is limited to -55°C to 125°C, making it suitable for standard industrial applications but not extended high-temperature environments.

RR0510P-3402-D (Susumu) provides substitution with ±0.5% tolerance and ±25ppm/°C temperature coefficient. Operating temperature range is -55°C to 125°C. This option represents a mid-tolerance alternative when ±1% specification is acceptable but improved temperature stability is desired.

Frequently Asked Questions (FAQ)

Q: Can RT0402BRD0734KL replace RT0402FRE0734KL in any application?

A: Yes. RT0402BRD0734KL is mechanically and electrically compatible. The tighter tolerance (±0.1% vs ±1%) and improved temperature coefficient (±25ppm/°C vs ±50ppm/°C) represent performance enhancements. Both parts share identical package dimensions, power rating, and operating temperature range.

Q: What is the difference between the substitute parts in tolerance grade?

A: RT0402BRD0734KL, CPF0402B34KE1, ERA-2AEB3402X, and MCS04020D3402BE100 offer ±0.1% tolerance. RR0510P-3402-D offers ±0.5% tolerance. All are tighter than or equal to the original ±1% specification and are therefore substitutable.

Q: Are there height differences between substitute parts?

A: Maximum seated heights vary slightly: RT0402FRE0734KL and RT0402BRD0734KL are 0.35mm, CPF0402B34KE1 is 0.35mm, ERA-2AEB3402X is 0.40mm, MCS04020D3402BE100 is 0.37mm, and RR0510P-3402-D is 0.40mm. These variations remain within standard 0402 package tolerances and do not affect PCB assembly compatibility.

Q: Which substitute is suitable for automotive applications?

A: ERA-2AEB3402X carries AEC-Q200 automotive qualification, making it the specified choice for automotive and mission-critical applications requiring enhanced reliability standards.

Q: Can I use MCS04020D3402BE100 in applications requiring -55°C to 155°C operation?

A: No. MCS04020D3402BE100 is rated only to 125°C maximum. For full -55°C to 155°C operation, use RT0402BRD0734KL, CPF0402B34KE1, or ERA-2AEB3402X.

Q: What does anti-sulfur construction mean in MCS04020D3402BE100?

A: Anti-sulfur construction provides enhanced resistance to sulfur-containing environmental contaminants, extending component reliability in industrial environments with atmospheric sulfur exposure.

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