Ohmite 91J100E Equivalent & Substitute Parts

Part Overview

The Ohmite 91J100E is a 1.5W, 100 Ohms wirewound through-hole resistor with ±5% tolerance, designed for axial mounting applications. This component features flame retardant coating and safety construction, making it suitable for industrial and safety-critical applications. The part is currently in active production status with RoHS compliance certification. Substitute parts are identified when equivalent electrical and mechanical parameters are required for procurement flexibility, inventory management, or supply chain continuity.

Substiute Parts

91J100E

OhmiteIn Stock: 94791J100E Datasheet

Current PartRFQ

91J100

OhmiteIn Stock: 105291J100 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 91J100E are identified based on strict electrical and mechanical parameter matching within the Ohmite 90 series wirewound resistor family. Substitution eligibility is determined by the following criteria:

• Resistance value: 100 Ohms (exact match required)
• Tolerance: ±5% (exact match required)
• Power rating: 1.5W (exact match required)
• Composition: Wirewound (exact match required)
• Package type: Axial (exact match required)
• Temperature coefficient: ±30ppm/°C (exact match required)
• Physical dimensions: 0.142" Dia x 0.453" L (exact match required)
• Safety features: Flame retardant coating and safety construction (exact match required)

The 91J100 is classified as a parametric equivalent within the same manufacturer series, sharing identical electrical specifications and mechanical construction with the main part.

Parameter Comparison

Engineering Selection Recommendations

Both the 91J100E and 91J100 are active production components from Ohmite's 90 series and share identical electrical and mechanical specifications. The primary distinction between these parts is regulatory compliance status: the 91J100E carries RoHS certification, while the 91J100 does not.

For applications subject to RoHS requirements or environmental regulations mandating lead-free construction, the 91J100E is the appropriate selection. The 91J100 may be selected for applications without RoHS compliance requirements or where legacy component specifications are maintained. Both parts are supplied in different packaging formats (box versus bulk), which may influence procurement decisions based on volume requirements and inventory management practices.

Frequently Asked Questions (FAQ)

Q: Can the 91J100 be used as a direct replacement for the 91J100E?

A: The 91J100 is electrically and mechanically equivalent to the 91J100E, sharing identical resistance, tolerance, power rating, composition, and physical dimensions. However, the 91J100 is RoHS non-compliant, while the 91J100E is RoHS compliant. Selection depends on regulatory requirements for your application.

Q: What is the difference in packaging between these parts?

A: The 91J100E is supplied in box packaging, while the 91J100 is supplied in bulk packaging. This distinction affects order quantities and inventory handling but does not impact component performance or electrical characteristics.

Q: Are the physical dimensions identical between the two parts?

A: Yes. Both the 91J100E and 91J100 have identical axial dimensions of 0.142" diameter by 0.453" length (3.60mm x 11.50mm), ensuring mechanical compatibility in PCB layouts and through-hole mounting applications.

Q: What does the temperature coefficient specification mean for these resistors?

A: The ±30ppm/°C temperature coefficient indicates the maximum change in resistance value per degree Celsius of temperature change. This specification applies equally to both the 91J100E and 91J100.

Q: Are both parts suitable for safety-critical applications?

A: Both the 91J100E and 91J100 feature flame retardant coating and safety construction. However, for applications requiring RoHS compliance certification, only the 91J100E meets this requirement.