WS2A68R0J Equivalent & Substitute Parts

Part Overview

The WS2A68R0J is a 68 Ohms ±5% 2W through-hole wirewound resistor manufactured by Bourns Inc. in the WS series. This axial component features flame retardant coating, pulse withstanding capability, and safety-rated construction, making it suitable for applications requiring reliable power dissipation and thermal stability across industrial temperature ranges. The part is currently in active production status with full RoHS3 compliance and REACH unaffected designation. Substitute parts are identified when equivalent electrical specifications and core mechanical compatibility are maintained across the product line.

Substiute Parts

WS2A68R0J

Bourns Inc.In Stock: 1017WS2A68R0J Datasheet

Current PartRFQ

WS2M68R0J

Bourns Inc.In Stock: 6154WS2M68R0J Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the WS2A68R0J is determined by strict equivalence across the following critical parameters:

• Resistance value: 68 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
• Core features: Flame retardant coating, pulse withstanding, safety construction
• Compliance: RoHS3 compliant, REACH unaffected

The WS2M68R0J qualifies as a direct substitute based on identical electrical specifications and equivalent mechanical construction within the Bourns WS series product line. Variations in physical dimensions and packaging format do not affect functional interchangeability in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both WS2A68R0J and WS2M68R0J are active production components from Bourns Inc. with identical electrical performance specifications. Selection between these parts is determined by application requirements and supply chain considerations rather than functional capability.

The WS2A68R0J is suitable for applications where bulk packaging and standard axial dimensions are preferred. The WS2M68R0J offers equivalent electrical performance with compact physical dimensions and cut tape packaging, providing flexibility for automated assembly processes and space-constrained designs.

Both parts maintain full RoHS3 compliance and REACH unaffected status, ensuring regulatory compatibility across industrial and commercial applications. The identical temperature coefficient and operating range support interchangeability in thermal management circuits and precision applications requiring stable performance across -55°C to 200°C.

Frequently Asked Questions (FAQ)

Q: Can WS2M68R0J replace WS2A68R0J in existing circuit designs?

A: Yes. Both parts deliver identical electrical specifications: 68 Ohms ±5% at 2W with ±200ppm/°C temperature coefficient. The primary difference is physical size and packaging format. Verify PCB layout accommodates the WS2M68R0J's compact dimensions (5.00mm x 11.50mm) versus the WS2A68R0J (5.50mm x 15.50mm) before substitution.

Q: What is the difference between bulk and cut tape packaging?

A: WS2A68R0J ships in bulk packaging suitable for manual assembly and stock management. WS2M68R0J arrives in cut tape format optimized for automated pick-and-place equipment and high-volume production workflows. Electrical performance is identical.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both WS2A68R0J and WS2M68R0J are ROHS3 compliant and REACH unaffected, meeting current environmental and hazardous substance restrictions for industrial and commercial applications.

Q: What determines substitution eligibility for wirewound resistors in the WS series?

A: Substitution requires matching resistance value, tolerance, power rating, temperature coefficient, operating temperature range, and core construction features. Physical dimensions and packaging format may vary without affecting electrical interchangeability.

Q: Can these parts be used interchangeably in high-temperature applications?

A: Yes. Both parts operate across -55°C to 200°C with stable ±200ppm/°C temperature coefficient performance, supporting thermal cycling and high-temperature circuit requirements.