RR01J43RTB Equivalent & Substitute Parts

Part Overview

The RR01J43RTB is a 43 Ohm, 1W metal film axial through-hole resistor manufactured by TE Connectivity Passive Product. This component is classified as Active product status and features flame retardant coating, pulse withstanding capability, and safety-rated construction. The resistor is designed for applications requiring reliable performance across industrial temperature ranges from -55°C to 235°C. Substitute parts are identified when equivalent electrical specifications, mechanical compatibility, and compliance certifications align with the original component requirements.

Substiute Parts

RR01J43RTB

TE Connectivity Passive ProductIn Stock: 4908RR01J43RTB Datasheet

Current PartRFQ

PR01000104309JR500

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 15715PR01000104309JR500 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RR01J43RTB is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

• Resistance value: 43 Ohms
• Tolerance: ±5%
• Power rating: 1W
• Composition: Metal Film
• Package configuration: Axial through-hole
• Termination count: 2 leads
• RoHS compliance: ROHS3 Compliant

Acceptable Variation Parameters:

• Operating temperature range: Substitute must support minimum -55°C to 155°C (original supports -55°C to 235°C)
• Temperature coefficient: Substitute at ±250ppm/°C is acceptable (original at ±300ppm/°C)
• Physical dimensions: Minor variations within axial package standard are acceptable
• Additional features: Automotive AEC-Q200 qualification and fusible characteristics are supplementary enhancements

The PR01000104309JR500 meets all critical matching parameters and operates within the acceptable variation range for temperature performance and coefficient specifications.

Parameter Comparison

Engineering Selection Recommendations

RR01J43RTB (TE Connectivity Passive Product):

• Primary selection for applications requiring maximum operating temperature to 235°C
• Suitable for high-temperature industrial environments
• Active product status with established supply chain
• ROHS3 and REACH compliant

PR01000104309JR500 (Vishay Beyschlag/Draloric/BC Components):

• Qualified substitute for applications operating within -55°C to 155°C range
• Automotive AEC-Q200 qualification provides additional reliability assurance for automotive and harsh environment applications
• Fusible characteristic offers enhanced safety in fault conditions
• Superior temperature coefficient (±250ppm/°C) provides improved stability
• Higher inventory availability (15,612 Pcs vs 4,896 Pcs)
• ROHS3 and REACH compliant

Selection between these components depends on application temperature requirements. For applications not exceeding 155°C, the PR01000104309JR500 provides equivalent electrical performance with automotive-grade reliability. For applications requiring operation above 155°C, the RR01J43RTB is the required selection.

Frequently Asked Questions (FAQ)

Q: Can PR01000104309JR500 be used as a direct replacement for RR01J43RTB in all applications?

A: The PR01000104309JR500 is a direct substitute for applications where the operating temperature does not exceed 155°C. The RR01J43RTB must be used for applications requiring operation above 155°C, as the substitute part is rated only to 155°C maximum.

Q: What is the significance of the AEC-Q200 qualification on the PR01000104309JR500?

A: AEC-Q200 is an automotive industry qualification standard. This certification indicates the PR01000104309JR500 meets automotive reliability and quality requirements, making it suitable for automotive and mission-critical applications requiring enhanced reliability assurance.

Q: Are the physical dimensions different between these two parts?

A: Yes, minor dimensional differences exist. The RR01J43RTB measures 0.102" Dia x 0.268" L (2.60mm x 6.80mm), while the PR01000104309JR500 measures 0.098" Dia x 0.256" L (2.50mm x 6.50mm). Both conform to standard axial package specifications and are mechanically compatible with standard through-hole PCB layouts.

Q: What does the fusible characteristic on the PR01000104309JR500 mean?

A: The fusible characteristic indicates the resistor will safely open-circuit under excessive current conditions, providing inherent overcurrent protection. This feature enhances safety in fault scenarios compared to standard metal film resistors.

Q: Are both parts RoHS compliant?

A: Yes, both RR01J43RTB and PR01000104309JR500 are ROHS3 compliant and REACH unaffected, meeting environmental and regulatory requirements for electronic component manufacturing and use.

Q: Which part should be selected for new designs?

A: For new designs, evaluate the maximum operating temperature requirement. If the application operates within -55°C to 155°C, the PR01000104309JR500 is recommended due to superior temperature coefficient stability and automotive-grade qualification. For applications exceeding 155°C, the RR01J43RTB is required.

Q: What is the difference in temperature coefficient between these parts?

A: The RR01J43RTB has a temperature coefficient of ±300ppm/°C, while the PR01000104309JR500 has ±250ppm/°C. The lower coefficient on the substitute part indicates superior resistance stability across temperature variations, resulting in more predictable performance in temperature-sensitive applications.