ERG-1SJ752 Equivalent & Substitute Parts

Part Overview

The ERG-1SJ752 is a 7.5 kOhms ±5% 1W axial through-hole resistor manufactured by Panasonic Electronic Components. This 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, making equivalent substitutes necessary for ongoing production and maintenance applications.

Substiute Parts

ERG-1SJ752

Panasonic Electronic ComponentsIn Stock: 1042ERG-1SJ752 Datasheet

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RSMF1JB7K50

Stackpole Electronics IncIn Stock: 1128RSMF1JB7K50 Datasheet

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RSMF1JT7K50

Stackpole Electronics IncIn Stock: 713RSMF1JT7K50 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ERG-1SJ752 are qualified based on the following critical parameters:

• Resistance value: 7.5 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)
• RoHS compliance: ROHS3 Compliant (exact match required)

The substitute parts RSMF1JB7K50 and RSMF1JT7K50, both manufactured by Stackpole Electronics Inc, meet all critical electrical and mechanical parameters. These parts differ only in packaging format (Bulk versus Tape & Reel) and minor dimensional variations within acceptable tolerances.

Parameter Comparison

Engineering Selection Recommendations

Both RSMF1JB7K50 and RSMF1JT7K50 are active products from Stackpole Electronics Inc and provide direct functional equivalence to the obsolete ERG-1SJ752. Selection between these two substitutes depends on procurement and assembly requirements:

RSMF1JB7K50 is supplied in Bulk packaging and is suitable for manual assembly, repair, and low-volume applications where individual component handling is required.

RSMF1JT7K50 is supplied in Tape & Reel format and is optimized for automated assembly processes and high-volume production environments.

Both substitutes maintain ROHS3 compliance and meet all electrical specifications. The Stackpole parts feature a lower temperature coefficient (±200ppm/°C versus ±350ppm/°C) and operate to 200°C maximum, compared to the original part's 235°C rating. Dimensional differences (0.126" diameter versus 0.110" diameter) are within standard axial resistor tolerances and do not affect electrical performance or board-level compatibility for standard through-hole applications.

Frequently Asked Questions (FAQ)

Q: Can RSMF1JB7K50 and RSMF1JT7K50 be used interchangeably with ERG-1SJ752?

A: Yes. Both Stackpole parts meet all critical electrical parameters: 7.5 kOhms resistance, ±5% tolerance, 1W power rating, metal oxide film composition, axial package, flame-proof and safety features, and ROHS3 compliance. The difference between RSMF1JB7K50 and RSMF1JT7K50 is packaging format only (Bulk versus Tape & Reel).

Q: What is the difference between RSMF1JB7K50 and RSMF1JT7K50?

A: Both parts are electrically identical. RSMF1JB7K50 is supplied in Bulk packaging for manual handling and repair applications. RSMF1JT7K50 is supplied in Tape & Reel format for automated pick-and-place assembly. Select based on your assembly process requirements.

Q: Are there dimensional compatibility concerns with the substitute parts?

A: The substitute parts have a slightly larger diameter (0.126" versus 0.110") but maintain the same axial length (0.354"). This dimensional difference is within standard axial resistor tolerances and does not affect through-hole board compatibility or electrical performance.

Q: Do the substitute parts meet the same compliance standards?

A: Yes. Both RSMF1JB7K50 and RSMF1JT7K50 are ROHS3 compliant, matching the compliance status of the original ERG-1SJ752.

Q: What is the operating temperature difference?

A: The original ERG-1SJ752 operates to 235°C maximum, while the Stackpole substitutes operate to 200°C maximum. For applications operating below 200°C, this difference is not a limiting factor. Applications requiring operation above 200°C require alternative solutions.

Q: Why is the ERG-1SJ752 obsolete?

A: The ERG-1SJ752 is listed as obsolete by Panasonic Electronic Components. The Stackpole RSMF series provides active, in-stock alternatives with equivalent electrical and mechanical specifications.