PSP7WSJB-12R Equivalent & Substitute Parts

Part Overview

The PSP7WSJB-12R is a 12 Ohm, 7W through-hole wirewound resistor manufactured by YAGEO in the PSP series. This axial-lead component is designed for applications requiring high power dissipation with flame-proof and moisture-resistant characteristics. The part is currently active in production with 674 units in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same resistance value, tolerance, power rating, and package configuration.

Substiute Parts

PSP7WSJB-12R

YAGEOIn Stock: 750PSP7WSJB-12R Datasheet

Current PartRFQ

SBCHE612RJ

TE Connectivity Passive ProductIn Stock: 1705SBCHE612RJ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PSP7WSJB-12R are qualified based on the following criteria:

• Resistance value: 12 Ohms (exact match required)
• Tolerance: ±5% (exact match required)
• Power rating: 7W (exact match required)
• Composition: Wirewound (exact match required)
• Operating temperature range: -55°C to 350°C (exact match or wider range acceptable)
• RoHS compliance: ROHS3 Compliant (regulatory requirement maintained)
• Package configuration: Axial or axial-compatible lead formation

The SBCHE612RJ from TE Connectivity Passive Product meets all electrical specifications and regulatory requirements. While the physical dimensions differ due to radial-formed lead configuration, the component maintains functional equivalence for circuit applications where lead geometry can accommodate the alternative package style.

Parameter Comparison

Engineering Selection Recommendations

Both the PSP7WSJB-12R and SBCHE612RJ are active production components with ROHS3 compliance and equivalent electrical performance. Selection between these parts should be based on:

• Lead configuration requirements: The PSP7WSJB-12R features standard axial leads, while the SBCHE612RJ offers radial-formed lead options. PCB layout and mounting constraints determine which configuration is suitable.
• Physical dimensions: The PSP7WSJB-12R measures 9.00mm × 25.00mm; the SBCHE612RJ measures 8.00mm × 7.00mm × 38.00mm. Verify board space availability for the selected package.
• Inventory availability: The SBCHE612RJ has higher stock levels (1623 units) compared to the PSP7WSJB-12R (674 units).
• Temperature coefficient: The SBCHE612RJ specifies ±400ppm/°C; the PSP7WSJB-12R does not provide this specification.

Frequently Asked Questions (FAQ)

Q: Can the SBCHE612RJ directly replace the PSP7WSJB-12R in all applications?

A: Both parts meet identical electrical specifications (12 Ohms, ±5%, 7W, wirewound). Substitution is valid provided the PCB layout accommodates the radial-formed lead configuration of the SBCHE612RJ. Verify lead spacing and mounting hole positions before implementation.

Q: What is the difference between axial and radial-formed leads?

A: Axial leads extend from opposite ends of the resistor body (PSP7WSJB-12R). Radial-formed leads are bent to extend from the same end or side (SBCHE612RJ option). This affects PCB hole positioning and mounting orientation.

Q: Are both parts suitable for high-temperature applications?

A: Yes. Both components operate across -55°C to 350°C. The SBCHE612RJ provides a specified temperature coefficient of ±400ppm/°C for precision applications requiring thermal stability data.

Q: What are the RoHS compliance implications?

A: Both parts are ROHS3 compliant, meeting current regulatory requirements for hazardous substance restrictions in electronic components.

Q: Which part should be selected for new designs?

A: For new designs, either part is acceptable based on mechanical fit and lead configuration requirements. Verify PCB layout compatibility with the selected package style before finalizing component selection.