ERG-1SJ430 Equivalent & Substitute Parts

Part Overview

The ERG-1SJ430 is a 43 Ohm, 1W axial through-hole resistor manufactured by Panasonic Electronic Components. This metal oxide film resistor features flame-proof and safety characteristics with a ±5% tolerance rating. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support, maintenance, and production continuity.

Substiute Parts

ERG-1SJ430

Panasonic Electronic ComponentsIn Stock: 1025ERG-1SJ430 Datasheet

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RSMF1JT43R0

Stackpole Electronics IncIn Stock: 1188RSMF1JT43R0 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ERG-1SJ430 are identified based on the following critical parameters:

• Resistance value: 43 Ohms (exact match required)
• Tolerance: ±5% (electrical accuracy specification)
• Power rating: 1W (thermal dissipation capability)
• Composition: Metal Oxide Film (material specification)
• Package type: Axial (mechanical form factor)
• Features: Flame Proof, Safety (regulatory and safety requirements)
• RoHS compliance: ROHS3 Compliant (environmental regulation)

The RSMF1JT43R0 from Stackpole Electronics Inc meets all these core substitution criteria. This part maintains electrical equivalence through identical resistance, tolerance, power rating, and composition specifications. Both parts are axial through-hole components with flame-proof and safety features, ensuring mechanical and functional compatibility in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

The RSMF1JT43R0 serves as a direct functional equivalent to the obsolete ERG-1SJ430. Both parts satisfy identical electrical specifications: 43 Ohm resistance, ±5% tolerance, 1W power rating, and metal oxide film composition with flame-proof and safety features.

The RSMF1JT43R0 is currently in active production status with 1152 pieces available in inventory, providing supply continuity for applications previously using the ERG-1SJ430. Both parts maintain ROHS3 compliance and EAR99 export classification.

Minor differences exist in temperature coefficient (±200ppm/°C versus ±350ppm/°C) and maximum operating temperature (200°C versus 235°C). The RSMF1JT43R0 exhibits superior temperature stability. Physical dimensions show a slight increase in diameter (0.126" versus 0.110"), though both maintain the same axial length of 0.354".

Frequently Asked Questions (FAQ)

Q: Can the RSMF1JT43R0 directly replace the ERG-1SJ430 in existing designs?

A: Yes. Both parts are 43 Ohm, 1W, ±5% tolerance metal oxide film axial resistors with identical flame-proof and safety features. Electrical performance is equivalent for standard circuit applications.

Q: What are the physical dimension differences?

A: The RSMF1JT43R0 has a slightly larger diameter (0.126" versus 0.110") while maintaining the same axial length (0.354"). Verify PCB layout and component spacing accommodate the increased diameter before substitution.

Q: How do the temperature coefficients differ?

A: The ERG-1SJ430 has a temperature coefficient of ±350ppm/°C, while the RSMF1JT43R0 is ±200ppm/°C. The RSMF1JT43R0 provides better temperature stability across the operating range.

Q: What is the maximum operating temperature for each part?

A: The ERG-1SJ430 operates to 235°C maximum, while the RSMF1JT43R0 operates to 200°C maximum. For applications requiring operation above 200°C, verify the ERG-1SJ430 specifications are necessary.

Q: Are both parts RoHS compliant?

A: Yes. Both the ERG-1SJ430 and RSMF1JT43R0 are ROHS3 compliant and REACH unaffected.

Q: What packaging options are available?

A: The ERG-1SJ430 uses standard axial packaging. The RSMF1JT43R0 is supplied in Tape & Reel (TR) format, suitable for automated assembly processes.