MPR20C330RJ Equivalent & Substitute Parts

Part Overview

The MPR20C330RJ is a 330 Ohm, 20W through-hole resistor manufactured by TE Connectivity Passive Product in the TO-220-2 package. This component is classified as obsolete, necessitating identification of equivalent alternatives for ongoing design support and procurement. The part features thick film construction with flame-proof and non-inductive characteristics, suitable for applications requiring high power dissipation in compact form factors.

Key Parameters

Parameter	Value
Resistance	330 Ohms
Tolerance	±5%
Power Rating	20W
Package Type	TO-220-2
Composition	Thick Film
Operating Temperature Range	-55°C to 155°C
Number of Terminations	2
RoHS Compliance	Required

Substitute Part Grouping Explanation

Substitution of the obsolete MPR20C330RJ is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Resistance value: 330 Ohms
Tolerance: ±5%
Power rating: 20W
Package: TO-220-2
Composition: Thick Film
Operating temperature range: -55°C to 155°C
Termination count: 2
RoHS compliance status

The substitute part RTO020F330R0JTE3 satisfies all mandatory parameters, enabling direct functional replacement in existing designs. Variations in temperature coefficient, physical dimensions, and product status do not preclude substitution when the core electrical and mechanical specifications align.

Parameter Comparison

Parameter	MPR20C330RJ (TE Connectivity)	RTO020F330R0JTE3 (Vishay Sfernice)	Match Status
Resistance	330 Ohms	330 Ohms	Equivalent
Tolerance	±5%	±5%	Equivalent
Power Rating	20W	20W	Equivalent
Package / Case	TO-220-2	TO-220-2	Equivalent
Composition	Thick Film	Thick Film	Equivalent
Operating Temperature	-55°C to 155°C	-55°C to 155°C	Equivalent
Number of Terminations	2	2	Equivalent
Temperature Coefficient	±50ppm/°C	±150ppm/°C	Different
Height - Seated (Max)	0.748" (19.00mm)	0.606" (15.40mm)	Different
Product Status	Obsolete	Active	Substitute is Active
RoHS Status	RoHS Compliant	ROHS3 Compliant	Both Compliant

Engineering Selection Recommendations

The RTO020F330R0JTE3 manufactured by Vishay Sfernice is a direct functional equivalent to the obsolete MPR20C330RJ. Selection of this substitute is supported by the following factors:

Product Status: The substitute part maintains active production status, ensuring long-term availability and supply chain continuity compared to the obsolete original part.

Compliance Certifications: Both components meet RoHS requirements. The substitute achieves ROHS3 compliance, representing current regulatory standards. Both parts carry EAR99 ECCN classification and identical HTSUS codes, confirming regulatory equivalence.

Electrical Specifications: Resistance, tolerance, power rating, and operating temperature range are identical across both components. The substitute's higher temperature coefficient (±150ppm/°C versus ±50ppm/°C) remains within acceptable limits for 20W thick film resistor applications and does not preclude substitution.

Mechanical Compatibility: Both components utilize the TO-220-2 package with identical lead configuration and termination count. The substitute exhibits reduced seated height (15.40mm versus 19.00mm), which provides improved PCB layout flexibility without compromising electrical performance.

Packaging: The substitute is supplied in tube packaging, standard for active production components, versus the original part's unspecified packaging format.

Frequently Asked Questions (FAQ)

Q: Can the RTO020F330R0JTE3 be used as a direct replacement for the MPR20C330RJ in existing designs?

A: Yes. Both components share identical resistance, tolerance, power rating, package type, and operating temperature specifications. Direct substitution is supported without circuit redesign.

Q: What is the significance of the temperature coefficient difference between the two parts?

A: The substitute exhibits a temperature coefficient of ±150ppm/°C compared to the original's ±50ppm/°C. For a 330 Ohm resistor operating across the full -55°C to 155°C range, this difference produces a maximum resistance variation of approximately 4.95 Ohms. This variation is acceptable for applications tolerating ±5% nominal tolerance and does not require circuit modification.

Q: Are there physical mounting differences between these components?

A: Both components use the TO-220-2 package with identical lead spacing and termination configuration. The substitute's reduced seated height (15.40mm versus 19.00mm) may improve PCB layout density but does not affect electrical performance or mounting compatibility.

Q: Do both parts meet current regulatory requirements?

A: Yes. Both components are RoHS compliant. The substitute achieves ROHS3 compliance, representing the current regulatory standard. Both parts are classified as EAR99 and carry identical HTSUS codes.

Q: What is the inventory status for the substitute part?

A: The RTO020F330R0JTE3 maintains active production status with 941 pieces in current stock, ensuring reliable procurement compared to the obsolete original part.

Q: Are there any application limitations when substituting the RTO020F330R0JTE3 for the MPR20C330RJ?

A: No application limitations exist based on provided specifications. Both components are rated for identical power dissipation, voltage stress, and thermal operating conditions. The substitute's non-inductive thick film construction matches the original part's characteristics.

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