Ohmite 21J330 Equivalent & Substitute Parts

Part Overview

The Ohmite 21J330 is a 330 Ohms ±5% 1W through-hole resistor with axial leads, featuring flame retardant coating and safety wirewound construction. This component is classified as Active product status and is suitable for general-purpose resistive applications requiring 1W power dissipation in compact axial packaging. Substitute parts are identified when inventory constraints, packaging preferences, or compliance requirements necessitate alternative sourcing while maintaining identical electrical and mechanical specifications.

Substiute Parts

21J330

OhmiteIn Stock: 65821J330 Datasheet

Current PartRFQ

21J330E

OhmiteIn Stock: 105721J330E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Ohmite 21J330 are qualified based on strict parametric equivalence across the following criteria:

• Resistance value: 330 Ohms
• Tolerance: ±5%
• Power rating: 1W
• Composition: Wirewound
• Package configuration: Axial with identical physical dimensions (0.157" Dia x 0.421" L)
• Temperature coefficient: ±30ppm/°C
• Features: Flame retardant coating and safety construction
• Termination count: 2-pin axial leads

The Ohmite 21J330E qualifies as a parametric equivalent substitute, matching all electrical and mechanical specifications while differing only in packaging format (Bulk versus standard packaging) and RoHS compliance status.

Parameter Comparison

Engineering Selection Recommendations

Selection between the Ohmite 21J330 and its substitute 21J330E should be based on the following criteria:

Use 21J330 when standard packaging format is required and RoHS non-compliant components are acceptable for the application.

Use 21J330E when ROHS3 compliance is mandated by design specifications, procurement policies, or regulatory requirements. The 21J330E offers higher inventory availability (1009 Pcs versus 634 Pcs) and identical electrical and mechanical performance.

Both parts are Active status components manufactured by Ohmite and are electrically and mechanically interchangeable for all applications requiring 330 Ohms ±5% 1W axial wirewound resistors with flame retardant coating.

Frequently Asked Questions (FAQ)

Q: Are the 21J330 and 21J330E electrically identical?

A: Yes. Both parts have identical resistance (330 Ohms), tolerance (±5%), power rating (1W), temperature coefficient (±30ppm/°C), and wirewound composition with flame retardant coating.

Q: What is the difference between these two parts?

A: The primary differences are packaging format (Standard versus Bulk) and RoHS compliance status (non-compliant versus ROHS3 Compliant). All electrical and mechanical specifications are identical.

Q: Can I substitute 21J330E for 21J330 in my design?

A: Yes, provided that ROHS3 compliance does not conflict with your application requirements. The parts are mechanically and electrically interchangeable.

Q: Do these parts have the same physical dimensions?

A: Yes. Both parts measure 0.157" Dia x 0.421" L (4.00mm x 10.70mm) and use identical 2-pin axial lead configuration.

Q: Which part should I select if RoHS compliance is not a requirement?

A: Either part is suitable. Selection may be based on inventory availability, packaging preference, or supplier lead time. The 21J330E currently has higher stock levels (1009 Pcs).

Q: Are there any temperature or environmental differences between these parts?

A: No. Both parts have identical temperature coefficient (±30ppm/°C) and identical flame retardant coating with safety features.