Ohmite 91J200 200 Ohm 1.5W Axial Wirewound Resistor Equivalent & Substitute Parts

Part Overview

The Ohmite 91J200 is a 200 Ohm, ±5% tolerance, 1.5W axial wirewound resistor with flame retardant coating and safety features. This component is classified as Active product status with 749 units currently in stock. Equivalent and substitute parts are identified when design requirements permit variations in power rating, packaging format, or compliance certifications while maintaining core electrical specifications.

Substiute Parts

91J200

OhmiteIn Stock: 82691J200 Datasheet

Current PartRFQ

42J200E

OhmiteIn Stock: 146942J200E Datasheet

MFR RecommendedRFQ

91J200E

OhmiteIn Stock: 117091J200E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 91J200 is determined by the following criteria:

Primary Substitution Criteria:

• Resistance value: 200 Ohms (exact match required)
• Tolerance: ±5% (exact match required)
• Composition: Wirewound (exact match required)
• Package: Axial (exact match required)
• Number of terminations: 2 (exact match required)

Secondary Variation Parameters (allowable differences):

• Power rating: May increase from 1.5W to higher ratings
• Temperature coefficient: May vary within wirewound specifications
• RoHS compliance: May differ based on application requirements
• Physical dimensions: May vary with power rating changes
• Series designation: May differ between product lines

Substitutes are grouped into two categories: MFR Recommended (higher power rating) and Parametric Equivalent (identical specifications with packaging variation).

Parameter Comparison

Engineering Selection Recommendations

42J200E (MFR Recommended Substitute): Use when higher power dissipation capability is required or when ROHS3 compliance is mandatory. This part maintains identical resistance and tolerance specifications while providing 2W power rating versus the original 1.5W. Physical dimensions increase due to higher power rating. Temperature coefficient improves to ±20ppm/°C. Suitable for applications where thermal margin is critical or regulatory compliance requires RoHS3 certification.

91J200E (Parametric Equivalent): Use when exact electrical and physical specifications of the original part are required with packaging format flexibility. This part is identical to 91J200 in all electrical parameters and physical dimensions but supplied in bulk packaging. RoHS compliance status differs from the original. Suitable for direct replacement in existing designs where packaging format change is acceptable.

Frequently Asked Questions (FAQ)

Q: Can 42J200E replace 91J200 in any application? A: 42J200E is electrically compatible as a substitute when the circuit design permits a higher power rating (2W vs 1.5W) and larger physical dimensions (0.220" Dia vs 0.142" Dia). Verify PCB layout clearance before substitution. The improved temperature coefficient (±20ppm/°C) may benefit precision applications.

Q: What is the difference between 91J200 and 91J200E? A: Both parts are electrically and physically identical 200 Ohm, ±5%, 1.5W axial wirewound resistors from the Ohmite 90 series. The primary difference is packaging format: 91J200 is supplied in standard packaging while 91J200E is supplied in bulk. RoHS compliance status also differs.

Q: Does the temperature coefficient difference between 42J200E (±20ppm/°C) and 91J200 (±30ppm/°C) affect compatibility? A: The 42J200E has a tighter temperature coefficient, which is advantageous for temperature-sensitive applications. This represents an improvement over the original specification and does not create compatibility issues.

Q: Are there physical space constraints when using 42J200E as a substitute? A: Yes. The 42J200E is physically larger (0.220" Dia x 0.406" L) compared to 91J200 (0.142" Dia x 0.453" L). Verify PCB layout and component spacing before substitution to ensure the larger diameter fits within available board space.

Q: Which substitute should I select for new designs? A: Selection depends on application requirements. For RoHS3 compliance or higher thermal margin, use 42J200E. For exact specification matching with bulk packaging, use 91J200E. Verify all electrical and mechanical constraints before final selection.