WW1JT100R Equivalent & Substitute Parts

Part Overview

The WW1JT100R is a 100 Ohm, 1W through-hole axial wirewound resistor manufactured by Stackpole Electronics Inc. This component is designed for applications requiring precision resistance with moisture resistance characteristics and operates across a wide temperature range from -55°C to 350°C. The part maintains Active product status with 979 units currently in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same functional category.

Key Parameters

Parameter	Value
Resistance	100 Ohms
Tolerance	±5%
Power Rating	1W
Composition	Wirewound
Package Type	Axial
Temperature Coefficient	±20ppm/°C
Operating Temperature Range	-55°C to 350°C
RoHS Status	ROHS3 Compliant
Number of Terminations	2

Substitute Part Grouping Explanation

Substitution eligibility for the WW1JT100R is determined by strict equivalence across the following critical parameters:

Resistance value: 100 Ohms
Tolerance: ±5%
Power rating: 1W
Composition: Wirewound
Package configuration: Axial with 2 terminations
Temperature coefficient: ±20ppm/°C
RoHS compliance: ROHS3 Compliant

The substitute part 41J100E meets all specified electrical and mechanical requirements for direct substitution in applications where the WW1JT100R is designated.

Parameter Comparison

Parameter	WW1JT100R (Stackpole)	41J100E (Ohmite)
Resistance	100 Ohms	100 Ohms
Tolerance	±5%	±5%
Power Rating	1W	1W
Composition	Wirewound	Wirewound
Temperature Coefficient	±20ppm/°C	±20ppm/°C
Package Type	Axial	Axial
Number of Terminations	2	2
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Physical Dimensions	0.110" Dia x 0.375" L (2.79mm x 9.53mm)	0.126" Dia x 0.437" L (3.20mm x 11.10mm)
Series	WW	Ohmicone® 40

Engineering Selection Recommendations

Both the WW1JT100R and 41J100E maintain Active product status and satisfy ROHS3 compliance requirements. Selection between these components should be based on availability, packaging format requirements, and physical space constraints within the application. The WW1JT100R features moisture-resistant construction, while the 41J100E is specified as part of the Ohmicone® 40 series. Both components are suitable for applications requiring 100 Ohm, 1W wirewound axial resistors with ±5% tolerance and ±20ppm/°C temperature coefficient across the -55°C to 350°C operating range.

Frequently Asked Questions (FAQ)

Q: Can the 41J100E replace the WW1JT100R in all applications?

A: Yes, provided that physical dimensions are compatible with the circuit board layout. The 41J100E has slightly larger dimensions (0.126" diameter vs. 0.110" diameter), which may affect fitment in space-constrained designs.

Q: Are there differences in moisture resistance between these parts?

A: The WW1JT100R is explicitly specified as moisture resistant. The 41J100E does not list moisture resistance as a feature in the provided specifications.

Q: Do both parts meet the same compliance standards?

A: Both the WW1JT100R and 41J100E are ROHS3 compliant and carry the same ECCN (EAR99) and HTSUS (8533.21.0080) classifications.

Q: What is the primary difference between these substitute parts?

A: The primary differences are physical dimensions, packaging format (Tape & Reel vs. Bulk), and the explicit moisture-resistant feature of the WW1JT100R. Electrical specifications are identical.

Q: Are there any temperature range limitations for the 41J100E?

A: The operating temperature range for the 41J100E is not specified in the provided data. The WW1JT100R operates from -55°C to 350°C.

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