Equivalent & Substitute Parts for WW3JB1K00

Part Overview

The WW3JB1K00 is a 1 kOhms ±5% 3W axial wirewound resistor manufactured by Stackpole Electronics Inc. This through-hole component features moisture-resistant construction and operates across a wide temperature range from -55°C to 350°C. The part is currently active in production with 788 units in stock. Substitute parts are identified to address inventory availability, tolerance requirements, or packaging format preferences while maintaining electrical and mechanical compatibility.

Substiute Parts

WW3JB1K00

Stackpole Electronics IncIn Stock: 866WW3JB1K00 Datasheet

Current PartRFQ

WW3FT1K00

Stackpole Electronics IncIn Stock: 4526WW3FT1K00 Datasheet

UpgradeRFQ

43J1K0E

OhmiteIn Stock: 86243J1K0E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the WW3JB1K00 is determined by the following critical parameters: resistance value (1 kOhms), power rating (3W), composition (wirewound), and package type (axial). All identified substitutes maintain these core electrical and mechanical specifications.

The WW3FT1K00 qualifies as an upgrade substitute due to improved tolerance (±1% versus ±5%), while maintaining identical resistance, power rating, composition, and package format. This part represents a higher-precision alternative within the same product family.

The 43J1K0E from Ohmite qualifies as a manufacturer-recommended substitute, matching the resistance value, power rating, tolerance, composition, and axial package type. Physical dimensions vary slightly (0.220" Dia x 0.594" L versus 0.187" Dia x 0.560" L), but both conform to standard axial package specifications.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain active production status and ROHS3 compliance. Selection between WW3JB1K00 and WW3FT1K00 depends on tolerance requirements: the WW3FT1K00 provides ±1% tolerance for applications requiring tighter resistance accuracy. Both Stackpole parts share identical physical dimensions and temperature characteristics.

The 43J1K0E from Ohmite provides cross-manufacturer compatibility with equivalent electrical specifications. Physical dimensions are slightly larger, requiring verification of PCB layout constraints. All three parts are suitable for applications operating within the specified temperature ranges and power dissipation requirements.

Frequently Asked Questions (FAQ)

Q: Can WW3FT1K00 directly replace WW3JB1K00? A: Yes. Both parts share identical resistance (1 kOhms), power rating (3W), composition (wirewound), package type (axial), and physical dimensions. The WW3FT1K00 offers improved tolerance (±1% versus ±5%).

Q: What are the physical dimension differences between WW3JB1K00 and 43J1K0E? A: WW3JB1K00 measures 0.187" Dia x 0.560" L (4.75mm x 14.22mm). The 43J1K0E measures 0.220" Dia x 0.594" L (5.60mm x 15.10mm). Both conform to standard axial package specifications but require layout verification for PCB compatibility.

Q: Are all substitute parts RoHS compliant? A: Yes. WW3JB1K00, WW3FT1K00, and 43J1K0E are all ROHS3 compliant.

Q: Which substitute offers the best tolerance performance? A: WW3FT1K00 provides ±1% tolerance compared to ±5% for both WW3JB1K00 and 43J1K0E.

Q: Can 43J1K0E be used in applications requiring -55°C to 350°C operation? A: The operating temperature range for 43J1K0E is not specified in the provided data. Verification with Ohmite documentation is required for temperature-critical applications.