EP1WS68RJ Equivalent & Substitute Parts

Part Overview

The EP1WS68RJ is a 68 Ohms ±5% 1W through-hole axial wirewound resistor manufactured by TE Connectivity Passive Product. This component features flame retardant coating, pulse withstanding capability, and safety-rated construction. The part is currently active in production with 1265 pieces in stock inventory. Substitute parts are identified when equivalent electrical specifications, mechanical compatibility, and regulatory compliance are maintained across alternative manufacturers.

Key Parameters

Parameter	Specification
Resistance Value	68 Ohms
Tolerance	±5%
Power Rating	1W
Composition	Wirewound
Package Type	Axial
Temperature Coefficient	±300ppm/°C (Main Part)
Operating Temperature Range	-55°C ~ 155°C (Main Part); -40°C ~ 200°C (Substitute)
RoHS Status	ROHS3 Compliant
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution eligibility for the EP1WS68RJ is determined by the following critical parameters:

Electrical Equivalence Requirements:

Resistance value: 68 Ohms (exact match required)
Tolerance: ±5% (exact match required)
Power rating: 1W (exact match required)
Composition: Wirewound (exact match required)

Mechanical Compatibility Requirements:

Package type: Axial (exact match required)
Number of terminations: 2 (exact match required)
Through-hole configuration (exact match required)

Regulatory & Compliance Requirements:

RoHS3 Compliant status (exact match required)
REACH Unaffected status (exact match required)
ECCN classification: EAR99 (exact match required)

The KNP100JR-52-68R from YAGEO meets all critical substitution criteria. Both parts maintain identical electrical specifications, axial package configuration, and regulatory compliance certifications. Physical dimensions vary slightly between manufacturers, which is acceptable within industry standards for axial wirewound resistors.

Parameter Comparison

Parameter	EP1WS68RJ (TE Connectivity)	KNP100JR-52-68R (YAGEO)	Match Status
Resistance	68 Ohms	68 Ohms	Equivalent
Tolerance	±5%	±5%	Equivalent
Power Rating	1W	1W	Equivalent
Composition	Wirewound	Wirewound	Equivalent
Package Type	Axial	Axial	Equivalent
Terminations	2	2	Equivalent
Operating Temperature Range	-55°C ~ 155°C	-40°C ~ 200°C	Substitute Range Wider
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
REACH Status	REACH Unaffected	REACH Unaffected	Equivalent
Packaging Format	Cut Tape (CT)	Cut Tape (CT)	Equivalent
Product Status	Active	Active	Equivalent

Engineering Selection Recommendations

Primary Part: EP1WS68RJ

The EP1WS68RJ remains the primary selection when TE Connectivity supply chain continuity is required. This part is actively manufactured, ROHS3 compliant, and REACH unaffected. The component carries pulse withstanding capability and safety-rated construction suitable for demanding applications.

Substitute Part: KNP100JR-52-68R

The KNP100JR-52-68R from YAGEO is a direct electrical and mechanical equivalent. This substitute maintains all critical specifications including 68 Ohms resistance, ±5% tolerance, 1W power rating, and axial wirewound construction. Both parts are ROHS3 compliant and REACH unaffected. The YAGEO part offers an extended operating temperature range (-40°C ~ 200°C versus -55°C ~ 155°C), providing additional thermal margin in high-temperature applications. Current inventory availability is higher for the YAGEO substitute (6929 pieces versus 1265 pieces).

Selection between these parts should be based on supply chain requirements, inventory availability, and application-specific temperature operating conditions.

Frequently Asked Questions (FAQ)

Q: Can the KNP100JR-52-68R replace the EP1WS68RJ in all applications?

A: Yes. Both parts are electrically and mechanically equivalent with identical resistance values (68 Ohms), tolerance (±5%), power rating (1W), and axial package configuration. Both are ROHS3 compliant and REACH unaffected. The YAGEO substitute operates across a wider temperature range (-40°C ~ 200°C), making it suitable for all applications where the TE Connectivity part is specified.

Q: What are the physical dimension differences between these parts?

A: The EP1WS68RJ measures 0.138" diameter × 0.394" length (3.50mm × 10.00mm). The KNP100JR-52-68R measures 0.181" diameter × 0.453" length (4.60mm × 11.50mm). Both are axial through-hole components with 2 terminations. Physical dimension variations are within acceptable tolerances for axial wirewound resistor applications and do not affect electrical performance or PCB compatibility.

Q: Are both parts suitable for safety-critical applications?

A: Both the EP1WS68RJ and KNP100JR-52-68R feature safety-rated construction. The TE Connectivity part additionally specifies pulse withstanding capability. For applications requiring pulse withstanding performance, the EP1WS68RJ is the specified choice. For general safety-rated applications, both parts are equivalent.

Q: What is the difference in temperature coefficient specifications?

A: The EP1WS68RJ specifies a temperature coefficient of ±300ppm/°C. The KNP100JR-52-68R does not provide a temperature coefficient specification in the available data. For applications with strict temperature coefficient requirements, the EP1WS68RJ is the specified choice.

Q: How do the inventory levels compare?

A: The EP1WS68RJ has 1265 pieces in stock. The KNP100JR-52-68R has 6929 pieces in stock. The YAGEO substitute offers significantly higher inventory availability for immediate procurement needs.

Q: Are both parts available in Cut Tape packaging?

A: Yes. Both the EP1WS68RJ and KNP100JR-52-68R are supplied in Cut Tape (CT) packaging format, ensuring compatibility with standard component handling and assembly processes.

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