WW1JB100R Equivalent & Substitute Parts

Part Overview

The WW1JB100R is a 100 Ohm, 1W wirewound axial resistor manufactured by Stackpole Electronics Inc. This through-hole component is designed for applications requiring precision resistance with moisture resistance and stable performance across a wide temperature range. The part maintains Active product status with 693 units currently in stock. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when supply chain optimization is required.

Substiute Parts

WW1JB100R

Stackpole Electronics IncIn Stock: 790WW1JB100R Datasheet

Current PartRFQ

41J100E

OhmiteIn Stock: 142141J100E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 41J100E from Ohmite qualifies as an equivalent based on the following critical parameters:

Resistance value matches exactly at 100 Ohms with identical ±5% tolerance. Power rating is equivalent at 1W. Composition is wirewound, matching the primary part. Package configuration is axial, maintaining mechanical and electrical compatibility. Temperature coefficient is identical at ±20ppm/°C. Both parts are ROHS3 compliant and carry the same HTSUS classification (8533.21.0080). The number of terminations is identical at 2. These aligned parameters establish functional and regulatory equivalence for direct substitution in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both the WW1JB100R and 41J100E maintain Active product status, ensuring continued availability and manufacturer support. Both components are ROHS3 compliant and carry identical regulatory classifications. Selection between these parts should be based on physical space constraints, as the Ohmite 41J100E has slightly larger dimensions (0.126" diameter vs. 0.110" diameter). For applications with tight PCB layout requirements, the Stackpole WW1JB100R offers a more compact form factor. For general applications where space is not a limiting factor, either part provides equivalent electrical performance and regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can the 41J100E directly replace the WW1JB100R in existing designs? A: Yes. Both parts share identical electrical specifications including resistance value, tolerance, power rating, temperature coefficient, and composition. The primary consideration is physical dimensions; verify that the slightly larger Ohmite part fits within your PCB layout constraints.

Q: Are there any operating temperature differences between these parts? A: The WW1JB100R specifies an operating range of -55°C to 350°C. The 41J100E does not provide an explicit operating temperature range in the available data. Both parts maintain the same temperature coefficient of ±20ppm/°C. For applications requiring operation at the full -55°C to 350°C range, confirm the 41J100E's suitability with the manufacturer.

Q: Do both parts meet the same regulatory requirements? A: Yes. Both the WW1JB100R and 41J100E are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with identical HTSUS codes (8533.21.0080).

Q: What is the primary physical difference between these axial resistors? A: The WW1JB100R measures 0.110" diameter by 0.375" length, while the 41J100E measures 0.126" diameter by 0.437" length. The Ohmite part is slightly larger in both dimensions. Verify clearance in your specific application before substitution.

Q: Are moisture resistance properties equivalent? A: The WW1JB100R explicitly lists moisture resistance as a feature. The 41J100E does not specify this feature in the available data. For applications requiring moisture resistance, confirm the environmental protection requirements of your design before selecting the substitute part.