RSMF3JB820R Equivalent & Substitute Parts

Part Overview

The RSMF3JB820R is a 820 Ohms ±5% 3W through hole resistor manufactured by Stackpole Electronics Inc. This metal oxide film axial resistor features flame proof and safety characteristics, designed for applications requiring reliable power dissipation in the 3-watt range. The part is currently active in production with 944 units in stock. Substitute parts are identified when packaging requirements differ while maintaining identical electrical and mechanical specifications.

Substiute Parts

RSMF3JB820R

Stackpole Electronics IncIn Stock: 978RSMF3JB820R Datasheet

Current PartRFQ

RSMF3JT820R

Stackpole Electronics IncIn Stock: 976RSMF3JT820R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The RSMF3JB820R has one identified substitute: RSMF3JT820R. Both parts are manufactured by Stackpole Electronics Inc within the RSMF series and share identical electrical specifications. The substitution is valid based on the following matching parameters:

• Resistance value: 820 Ohms
• Tolerance: ±5%
• Power rating: 3W
• Composition: Metal Oxide Film
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C to 235°C
• Physical dimensions: 0.217" Dia x 0.591" L (5.50mm x 15.00mm)
• Axial package configuration
• RoHS3 compliance

The only difference between these parts is the packaging format: RSMF3JB820R is supplied in Bulk packaging, while RSMF3JT820R is supplied in Tape & Reel (TR) format. This distinction affects procurement and assembly processes but does not alter component performance or electrical characteristics.

Parameter Comparison

Engineering Selection Recommendations

Both RSMF3JB820R and RSMF3JT820R are active production components with full ROHS3 compliance and REACH unaffected status. Selection between these parts should be based on procurement and assembly requirements:

• RSMF3JB820R (Bulk packaging) is suitable for manual assembly, prototyping, or applications where individual component handling is preferred.
• RSMF3JT820R (Tape & Reel packaging) is optimized for automated pick-and-place assembly processes and high-volume production environments.

Both parts meet identical electrical performance criteria and are suitable for applications requiring 820 Ohm resistors with 3-watt power dissipation across the -55°C to 235°C operating range.

Frequently Asked Questions (FAQ)

Q: Can RSMF3JT820R replace RSMF3JB820R in my circuit design?

A: Yes. Both parts have identical electrical specifications, resistance value, tolerance, power rating, temperature coefficient, and operating temperature range. The only difference is packaging format.

Q: What is the difference between Bulk and Tape & Reel packaging?

A: Bulk packaging supplies loose components suitable for manual handling and assembly. Tape & Reel packaging places components on continuous tape for automated assembly equipment. Electrical performance is identical.

Q: Are both parts RoHS compliant?

A: Yes. Both RSMF3JB820R and RSMF3JT820R are ROHS3 compliant and REACH unaffected.

Q: Can I use these parts interchangeably in my PCB assembly process?

A: Interchangeability depends on your assembly method. For manual assembly, either packaging works. For automated assembly, Tape & Reel (RSMF3JT820R) is the standard format. Verify your assembly equipment compatibility before selection.

Q: What is the operating temperature range for these resistors?

A: Both parts operate reliably from -55°C to 235°C with a temperature coefficient of ±200ppm/°C.