RT0402FRE0745K3L Equivalent & Substitute Parts

Part Overview

The RT0402FRE0745K3L is a 45.3 kOhms ±1% thin film chip resistor in 0402 (1005 Metric) package manufactured by YAGEO. This component is actively produced and widely used in precision analog circuits, signal conditioning, and measurement applications where moderate tolerance specifications are acceptable. Substitute parts are identified to address inventory availability, enhanced performance specifications, or alternative sourcing requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

RT0402FRE0745K3L

YAGEOIn Stock: 945RT0402FRE0745K3L Datasheet

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RT0402BRD0745K3L

YAGEOIn Stock: 10940RT0402BRD0745K3L Datasheet

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RT0402DRD0745K3L

YAGEOIn Stock: 18993RT0402DRD0745K3L Datasheet

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CPF0402B45K3E1

TE Connectivity Passive ProductIn Stock: 2245CPF0402B45K3E1 Datasheet

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ERA-2AEB4532X

Panasonic Electronic ComponentsIn Stock: 16603ERA-2AEB4532X Datasheet

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RR0510P-4532-D

SusumuIn Stock: 50901RR0510P-4532-D Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following electrical and mechanical parameters:

Mandatory Compatibility Criteria:

• Resistance value: 45.3 kOhms (exact match required)
• Package: 0402 (1005 Metric) (exact match required)
• Power rating: 0.063W minimum (equal or higher acceptable)
• Composition: Thin Film (exact match required)
• Operating temperature range: Must encompass or equal -55°C to 155°C minimum
• RoHS compliance: ROHS3 Compliant (required)
• MSL rating: 1 (Unlimited) (required)

Tolerance Substitution Logic: Parts with tolerance specifications equal to or tighter than ±1% are direct substitutes. Parts with tolerance specifications tighter than the original (±0.1% or ±0.5%) represent performance upgrades and are electrically compatible for applications requiring improved accuracy.

Temperature Coefficient Consideration: Substitute parts with temperature coefficients equal to or better than ±50ppm/°C maintain or improve thermal stability characteristics.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) ratings, ensuring compatibility with standard manufacturing and storage protocols.

YAGEO RT Series (RT0402BRD0745K3L, RT0402DRD0745K3L): Both parts are manufactured by the same supplier as the primary component, ensuring consistent design and process control. RT0402BRD0745K3L offers ±0.1% tolerance with improved temperature coefficient (±25ppm/°C). RT0402DRD0745K3L provides ±0.5% tolerance with equivalent thermal performance. Both maintain the full -55°C to 155°C operating range.

TE Connectivity CPF0402B45K3E1: Represents an alternative manufacturer source with ±0.1% tolerance and ±25ppm/°C temperature coefficient. Maintains full operating temperature range and ROHS3 compliance.

Panasonic ERA-2AEB4532X: Qualified to AEC-Q200 automotive standard with ±0.1% tolerance and ±25ppm/°C temperature coefficient. Suitable for applications requiring automotive-grade reliability. Maintains full operating temperature range.

Susumu RR0510P-4532-D: Provides ±0.5% tolerance with ±25ppm/°C temperature coefficient. Operating temperature range is -55°C to 125°C, which is 30°C lower than the primary part at the upper limit. This part is suitable for applications not requiring the full 155°C upper temperature specification.

Frequently Asked Questions (FAQ)

Q: Can RT0402BRD0745K3L replace RT0402FRE0745K3L in all applications?

A: Yes. RT0402BRD0745K3L is electrically and mechanically compatible. It provides superior tolerance (±0.1% versus ±1%) and improved temperature coefficient (±25ppm/°C versus ±50ppm/°C), making it suitable for all applications where the original part is specified.

Q: What is the difference between the YAGEO RT0402DRD0745K3L and RT0402BRD0745K3L?

A: Both parts are identical in resistance, package, and operating temperature range. The primary difference is tolerance specification: RT0402DRD0745K3L is ±0.5% while RT0402BRD0745K3L is ±0.1%. Both share the same ±25ppm/°C temperature coefficient. Selection depends on circuit accuracy requirements.

Q: Is ERA-2AEB4532X suitable for non-automotive applications?

A: Yes. ERA-2AEB4532X meets AEC-Q200 automotive qualification but is not restricted to automotive use. It is a direct electrical and mechanical substitute for the primary part and may be used in any application where the original specification is met.

Q: Why does RR0510P-4532-D have a lower maximum operating temperature?

A: RR0510P-4532-D is specified for -55°C to 125°C operation, which is 30°C lower than the primary part at the upper limit. This part is suitable for applications where the full 155°C upper temperature range is not required. Verify application temperature requirements before selection.

Q: Are all substitute parts available in the same packaging formats?

A: No. RT0402FRE0745K3L and RT0402DRD0745K3L are supplied in Tape & Reel (TR) format. RT0402BRD0745K3L is available in Cut Tape (CT) & Digi-Reel format. CPF0402B45K3E1, ERA-2AEB4532X, and RR0510P-4532-D are supplied in Tape & Reel format. Verify packaging requirements for your manufacturing process.

Q: Can substitute parts with ±0.1% tolerance be used in place of the ±1% original specification?

A: Yes. Parts with tighter tolerance specifications (±0.1%) are direct substitutes for applications requiring ±1% tolerance. The tighter tolerance represents improved performance and maintains full compatibility.