RSF2JA820R Equivalent & Substitute Parts

Part Overview

The RSF2JA820R is an 820 Ohms ±5% 2W through-hole resistor manufactured by Stackpole Electronics Inc. This metal oxide film axial resistor features flame retardant coating and safety design, operating across a temperature range of -55°C to 235°C. The part is currently active in production and ROHS3 compliant. Equivalent and substitute parts are identified to provide procurement flexibility, accommodate packaging preferences, or address power rating requirements in circuit applications.

Substiute Parts

RSF2JA820R

Stackpole Electronics IncIn Stock: 1054RSF2JA820R Datasheet

Current PartRFQ

RSF2JT820R

Stackpole Electronics IncIn Stock: 1955RSF2JT820R Datasheet

DirectRFQ

RSMF3JT820R

Stackpole Electronics IncIn Stock: 976RSMF3JT820R Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RSF2JA820R are identified based on electrical parameter equivalence and mechanical compatibility. The critical parameters determining substitution eligibility are: resistance value (820 Ohms), tolerance (±5%), composition (metal oxide film), axial package configuration, temperature coefficient (±200ppm/°C), and operating temperature range (-55°C ~ 235°C).

RSF2JT820R qualifies as a direct equivalent, matching all electrical and mechanical specifications while differing only in packaging format (Cut Tape versus Tape & Box). RSMF3JT820R represents an upgrade substitute, maintaining electrical equivalence in resistance, tolerance, and temperature characteristics while providing increased power rating (3W versus 2W) and enhanced flame-proof features, suitable for applications requiring higher power dissipation capacity.

Parameter Comparison

Engineering Selection Recommendations

RSF2JT820R serves as the direct functional equivalent to RSF2JA820R, providing identical electrical performance and mechanical fit. Selection between these two parts depends on packaging requirements and procurement logistics. RSF2JA820R in Tape & Box format suits lower-volume applications or manual assembly workflows, while RSF2JT820R in Cut Tape format accommodates automated pick-and-place systems.

RSMF3JT820R functions as an upgrade substitute where circuit design permits increased power dissipation. The 3W rating provides additional thermal margin compared to the 2W specification of the main part, while maintaining all other electrical parameters. The transition from flame retardant to flame-proof features represents an enhancement in safety characteristics. All three parts maintain ROHS3 compliance and identical operating temperature ranges, ensuring regulatory and thermal compatibility across substitution scenarios.

Frequently Asked Questions (FAQ)

Q: Can RSF2JT820R replace RSF2JA820R in existing designs? A: Yes. RSF2JT820R is electrically and mechanically equivalent to RSF2JA820R. Both parts share identical resistance (820 Ohms), tolerance (±5%), power rating (2W), composition (metal oxide film), temperature coefficient (±200ppm/°C), operating temperature range (-55°C ~ 235°C), and physical dimensions (0.217" Dia x 0.591" L). The difference is packaging format only: Tape & Box versus Cut Tape.

Q: When should RSMF3JT820R be used instead of RSF2JA820R? A: RSMF3JT820R is appropriate when circuit applications require power dissipation exceeding 2W. The 3W rating provides additional thermal capacity while maintaining the same 820 Ohms resistance and ±5% tolerance. All electrical parameters, temperature characteristics, and compliance certifications remain equivalent. Physical dimensions are identical, ensuring mechanical compatibility.

Q: Are all three parts ROHS3 compliant? A: Yes. RSF2JA820R, RSF2JT820R, and RSMF3JT820R are all ROHS3 compliant. No environmental or regulatory differences exist between these parts.

Q: What is the difference between flame retardant and flame-proof coatings? A: RSF2JA820R and RSF2JT820R feature flame retardant coating, while RSMF3JT820R features flame-proof coating. Both designations indicate safety enhancements in the resistor construction. The flame-proof specification in RSMF3JT820R represents an enhanced safety characteristic.

Q: Do packaging format differences affect circuit performance? A: No. Tape & Box (TB), Cut Tape (CT), and Tape & Reel (TR) packaging formats are logistics and assembly considerations only. All three formats contain identical resistor components with identical electrical specifications and performance characteristics.