RSF2JB470R Equivalent & Substitute Parts

Part Overview

The RSF2JB470R is a 470 Ohms ±5% 2W through-hole axial resistor manufactured by Stackpole Electronics Inc. This metal oxide film resistor features flame retardant coating and safety design, with an operating temperature range of -55°C to 235°C. The part is Active status and ROHS3 compliant. Substitute parts are identified when packaging format, inventory availability, or enhanced specifications require alternative sourcing while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Resistance	470 Ohms
Tolerance	±5%
Power Rating	2W
Composition	Metal Oxide Film
Package Type	Axial
Temperature Coefficient	±200ppm/°C
Operating Temperature Range	-55°C ~ 235°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the RSF2JB470R are classified based on the following substitution criteria:

Direct Substitute (Packaging Variant): RSF2JT470R maintains identical electrical specifications (470 Ohms, ±5%, 2W, Metal Oxide Film) and mechanical dimensions (0.217" Dia x 0.591" L). The substitution is valid based on matching resistance, tolerance, power rating, composition, temperature coefficient, and operating temperature range. The difference is packaging format: RSF2JB470R is supplied in Bulk, while RSF2JT470R is supplied in Cut Tape (CT).

Upgrade Substitute (Enhanced Power Rating): RSMF3JT470R provides identical electrical parameters (470 Ohms, ±5%, Metal Oxide Film, ±200ppm/°C, -55°C ~ 235°C) with increased power rating of 3W versus 2W. This substitution is valid for applications requiring higher power dissipation capability while maintaining all other specifications. The feature upgrade from Flame Retardant to Flame Proof provides enhanced safety characteristics.

Manufacturer Recommended Substitute (Improved Design): RSMF2JT470R matches the primary electrical specifications (470 Ohms, ±5%, 2W, Metal Oxide Film, ±200ppm/°C, -55°C ~ 235°C) with improved Flame Proof design. Physical dimensions differ (0.177" Dia x 0.433" L versus 0.217" Dia x 0.591" L), representing a more compact form factor. This substitution is valid when space constraints permit the smaller package while maintaining electrical performance.

Parameter Comparison

Parameter	RSF2JB470R	RSF2JT470R	RSMF3JT470R	RSMF2JT470R
Resistance	470 Ohms	470 Ohms	470 Ohms	470 Ohms
Tolerance	±5%	±5%	±5%	±5%
Power Rating	2W	2W	3W	2W
Composition	Metal Oxide Film	Metal Oxide Film	Metal Oxide Film	Metal Oxide Film
Temperature Coefficient	±200ppm/°C	±200ppm/°C	±200ppm/°C	±200ppm/°C
Operating Temperature	-55°C ~ 235°C	-55°C ~ 235°C	-55°C ~ 235°C	-55°C ~ 235°C
Package / Case	Axial	Axial	Axial	Axial
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Series	RSF	RSF	RSMF	RSMF
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

All substitute parts maintain Active product status and ROHS3 compliance, ensuring continued availability and regulatory conformance. Selection between substitutes depends on application requirements:

RSF2JT470R is selected when Cut Tape packaging is preferred over Bulk format, with no change to electrical or mechanical specifications.

RSMF3JT470R is selected for applications where power dissipation exceeds 2W but does not exceed 3W, providing margin for thermal management while maintaining all other electrical parameters. The Flame Proof feature provides enhanced safety characteristics compared to Flame Retardant.

RSMF2JT470R is selected when PCB space constraints require a more compact form factor (0.177" Dia x 0.433" L). The Flame Proof design represents an improved safety specification. This part is manufacturer recommended and carries the highest inventory availability (6731 Pcs).

Frequently Asked Questions (FAQ)

Q: Can RSF2JT470R replace RSF2JB470R directly? A: Yes. Both parts have identical electrical specifications (470 Ohms, ±5%, 2W) and mechanical dimensions (0.217" Dia x 0.591" L). The only difference is packaging format: Bulk versus Cut Tape. Direct substitution is valid for any application using the original part.

Q: When should RSMF3JT470R be used instead of RSF2JB470R? A: RSMF3JT470R is used when the application requires power dissipation capability greater than 2W. The 3W rating provides additional thermal margin. All other electrical parameters remain identical. Physical dimensions are unchanged.

Q: Is RSMF2JT470R compatible with RSF2JB470R in all applications? A: RSMF2JT470R is electrically compatible (470 Ohms, ±5%, 2W, identical temperature coefficient and operating range). However, physical dimensions differ: 0.177" Dia x 0.433" L versus 0.217" Dia x 0.591" L. Compatibility depends on PCB layout constraints. The smaller form factor may require PCB redesign but provides space savings.

Q: What is the difference between Flame Retardant and Flame Proof? A: Both designations indicate safety features in the resistor design. Flame Proof represents an enhanced safety specification compared to Flame Retardant. All substitute parts maintain ROHS3 compliance and Active product status.

Q: Are all substitute parts from the same manufacturer? A: Yes. All parts (RSF2JB470R, RSF2JT470R, RSMF3JT470R, RSMF2JT470R) are manufactured by Stackpole Electronics Inc, ensuring consistent quality and reliability standards.

Q: Which substitute part has the best inventory availability? A: RSMF2JT470R has the highest inventory (6731 Pcs), followed by RSF2JT470R (2697 Pcs) and RSMF3JT470R (2226 Pcs). RSF2JB470R has 1030 Pcs available.

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