WS2A33R0J Equivalent & Substitute Parts

Part Overview

The WS2A33R0J is a 33 Ohm, 2W wirewound axial resistor manufactured by Bourns Inc. This component is designed for through-hole applications requiring flame retardant coating, pulse withstanding capability, and safety-rated construction. The part is currently in active production status with 1095 units available in inventory. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the allowed parameter range for this resistor category.

Substiute Parts

WS2A33R0J

Bourns Inc.In Stock: 1130WS2A33R0J Datasheet

Current PartRFQ

WS2M33R0J

Bourns Inc.In Stock: 4838WS2M33R0J Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the WS2A33R0J is determined by strict equivalence across the following critical parameters:

• Resistance value: 33 Ohms
• Tolerance: ±5%
• Power rating: 2W
• Composition: Wirewound
• Package configuration: Axial through-hole
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C to 200°C
• Functional features: Flame retardant coating, pulse withstanding, safety construction
• Regulatory compliance: ROHS3 Compliant, REACH Unaffected

The WS2M33R0J meets all these criteria and is classified as a direct substitute. Variations in physical dimensions and packaging format (cut tape versus standard packaging) do not affect electrical performance or functional compatibility in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both the WS2A33R0J and WS2M33R0J are active production components from Bourns Inc. with identical electrical and functional specifications. Selection between these parts is based on packaging and supply considerations rather than performance differences.

The WS2A33R0J is available in standard packaging format with 1095 units in stock. The WS2M33R0J is supplied in cut tape packaging with higher inventory availability at 4759 units. Both parts maintain full ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component applications.

Physical dimensions differ slightly between the two variants. The WS2A33R0J measures 0.217" diameter by 0.610" length (5.50mm x 15.50mm), while the WS2M33R0J measures 0.197" diameter by 0.453" length (5.00mm x 11.50mm). These dimensional variations do not affect electrical performance or circuit compatibility in standard through-hole PCB applications.

Frequently Asked Questions (FAQ)

Q: Can WS2M33R0J replace WS2A33R0J in existing designs?

A: Yes. Both parts are electrically and functionally identical with matching resistance, tolerance, power rating, temperature coefficient, and operating temperature range. The primary difference is physical size and packaging format.

Q: What is the difference between the two part numbers?

A: The WS2A and WS2M designations indicate different physical sizes within the same product series. WS2A is the larger variant (5.50mm x 15.50mm), while WS2M is the smaller variant (5.00mm x 11.50mm). Both are axial wirewound resistors with identical electrical specifications.

Q: Are there packaging differences between these parts?

A: The WS2A33R0J uses standard packaging, while the WS2M33R0J is supplied in cut tape format. This affects handling and assembly processes but does not impact electrical performance or component functionality.

Q: Do both parts meet the same compliance standards?

A: Yes. Both WS2A33R0J and WS2M33R0J are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components.

Q: Which part should be selected for new designs?

A: Selection depends on PCB layout constraints and assembly requirements. The WS2M33R0J smaller size may be preferred for space-constrained applications, while the WS2A33R0J larger size may be suitable for applications with standard board spacing. Both are functionally equivalent.