ERG-1SJ183 Equivalent & Substitute Parts

Part Overview

The ERG-1SJ183 is an 18 kOhms ±5% 1W through-hole resistor manufactured by Panasonic Electronic Components. This axial metal oxide film resistor features flame-proof and safety characteristics, designed for applications requiring reliable performance across industrial temperature ranges. The part is currently obsolete, necessitating identification of functionally equivalent alternatives for ongoing system support and new designs.

Substiute Parts

ERG-1SJ183

Panasonic Electronic ComponentsIn Stock: 11660ERG-1SJ183 Datasheet

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RSMF1JT18K0

Stackpole Electronics IncIn Stock: 760RSMF1JT18K0 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ERG-1SJ183 are identified based on the following critical parameters:

• Resistance value: 18 kOhms (exact match required)
• Tolerance: ±5% (exact match required)
• Power rating: 1W (exact match required)
• Composition: Metal Oxide Film (exact match required)
• Package type: Axial (exact match required)
• Features: Flame Proof, Safety (exact match required)
• Regulatory compliance: ROHS3 Compliant (minimum requirement)

The RSMF1JT18K0 from Stackpole Electronics Inc meets all critical electrical and mechanical parameters, with minor variations in temperature coefficient and maximum operating temperature that remain within acceptable substitution criteria for this component category.

Parameter Comparison

Engineering Selection Recommendations

The RSMF1JT18K0 is a direct functional equivalent for the obsolete ERG-1SJ183. Both components satisfy identical electrical specifications: 18 kOhms resistance, ±5% tolerance, and 1W power rating in metal oxide film axial configuration with flame-proof and safety features.

The RSMF1JT18K0 offers superior product status as an active component with current manufacturing support. Both parts maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements for industrial applications.

Physical dimensions differ slightly: the Stackpole part has a marginally larger diameter (0.126" vs 0.110") while maintaining identical length. This dimensional variance is typical within axial resistor manufacturing tolerances and does not affect functional compatibility in standard through-hole PCB applications.

The RSMF1JT18K0 exhibits improved temperature stability with a lower temperature coefficient (±200ppm/°C vs ±350ppm/°C), though its maximum operating temperature is reduced to 200°C compared to the original 235°C specification. Component selection should account for specific application temperature requirements.

Frequently Asked Questions (FAQ)

Q: Can RSMF1JT18K0 directly replace ERG-1SJ183 in existing designs?

A: Yes. Both components share identical electrical specifications (18 kOhms, ±5%, 1W) and package type (axial metal oxide film). Physical dimensions are within standard manufacturing tolerances for through-hole resistors.

Q: What are the key differences between these parts?

A: The primary differences are product status (RSMF1JT18K0 is active; ERG-1SJ183 is obsolete), temperature coefficient (±200ppm/°C vs ±350ppm/°C), maximum operating temperature (200°C vs 235°C), and physical diameter (0.126" vs 0.110"). Electrical performance remains equivalent.

Q: Are there packaging differences?

A: The ERG-1SJ183 is supplied in bulk packaging, while RSMF1JT18K0 is supplied in tape and reel format. Both are axial through-hole components suitable for standard PCB assembly processes.

Q: Does the lower maximum operating temperature of RSMF1JT18K0 affect compatibility?

A: Compatibility depends on application requirements. If your design operates below 200°C, the RSMF1JT18K0 is fully compatible. Applications requiring operation above 200°C require alternative component evaluation.

Q: Are both parts RoHS compliant?

A: Yes. Both ERG-1SJ183 and RSMF1JT18K0 are ROHS3 compliant and REACH unaffected, meeting current regulatory standards for electronic components.