Ohmite 41J180 Equivalent & Substitute Parts

Part Overview

The Ohmite 41J180 is a 180 Ohms ±5% 1W through-hole resistor with axial wirewound construction, part of the Ohmicone® 40 series. This component is currently active in production and maintains 734 pieces in new original inventory stock. The 41J180 is classified as RoHS non-compliant, which may necessitate identification of compliant alternatives for applications subject to RoHS regulations or procurement requirements mandating RoHS3 compliance.

Substiute Parts

41J180

OhmiteIn Stock: 80741J180 Datasheet

Current PartRFQ

41J180E

OhmiteIn Stock: 98741J180E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 41J180 is determined by strict parametric equivalence across electrical and mechanical specifications. The following criteria establish valid substitutes:

• Resistance value: 180 Ohms (exact match required)
• Tolerance: ±5% (exact match required)
• Power rating: 1W (exact match required)
• Composition: Wirewound (exact match required)
• Package type: Axial (exact match required)
• Temperature coefficient: ±20ppm/°C (exact match required)
• Physical dimensions: 0.126" Dia x 0.437" L / 3.20mm x 11.10mm (exact match required)
• Termination count: 2 (exact match required)

The identified substitute part 41J180E meets all parametric requirements for direct substitution. The primary distinction between the main part and its substitute is packaging configuration and RoHS compliance status.

Parameter Comparison

Engineering Selection Recommendations

The 41J180E serves as a direct parametric equivalent to the 41J180, with identical electrical and mechanical specifications. Selection between these parts should be based on the following criteria:

41J180: Select this part for applications where RoHS non-compliance is acceptable or where existing procurement specifications explicitly reference this part number.

41J180E: Select this part for applications requiring ROHS3 compliance or where bulk packaging is preferred. The higher inventory level (884 pieces versus 734 pieces) may provide supply chain advantages for high-volume requirements.

Both parts are active products from Ohmite's Ohmicone® 40 series and are suitable for through-hole PCB assembly applications requiring 180 Ohm, 1W axial wirewound resistors.

Frequently Asked Questions (FAQ)

Q: Can the 41J180E replace the 41J180 in existing designs? A: Yes. The 41J180E is a parametric equivalent with identical resistance, tolerance, power rating, composition, package type, temperature coefficient, and physical dimensions. The only differences are packaging configuration (bulk versus standard) and RoHS compliance status.

Q: What is the primary reason to substitute the 41J180 with the 41J180E? A: The 41J180E is ROHS3 compliant, whereas the 41J180 is RoHS non-compliant. Applications subject to RoHS regulations or procurement policies requiring RoHS compliance should specify the 41J180E.

Q: Are there any mechanical compatibility concerns when switching between these parts? A: No. Both parts share identical physical dimensions (0.126" Dia x 0.437" L / 3.20mm x 11.10mm) and axial package configuration, ensuring direct mechanical compatibility in PCB layouts and through-hole assembly processes.

Q: Does packaging type affect electrical performance? A: No. The packaging difference (standard versus bulk) is a supply and handling consideration only. Electrical performance, thermal characteristics, and reliability are identical between the two parts.

Q: What is the temperature coefficient specification, and why is it important? A: Both parts have a temperature coefficient of ±20ppm/°C, indicating the resistance change per degree Celsius across the operating temperature range. This specification is critical for precision applications where temperature stability is required.