LPR100 30R J Equivalent & Substitute Parts

Part Overview

The LPR100 30R J is an Ohmite low-profile chassis mount resistor rated for 100 watts at 30 ohms with ±5% tolerance. This component is designed for high-power applications requiring stable resistance performance in compact form factors. The part maintains Active product status with full RoHS3 compliance and REACH unaffected designation. Substitute parts are identified when application requirements permit operation at reduced power ratings while maintaining identical resistance, tolerance, and mechanical mounting characteristics.

Substiute Parts

LPR100 30R J

OhmiteIn Stock: 1182LPR100 30R J Datasheet

Current PartRFQ

LPR50 30R J

OhmiteIn Stock: 890LPR50 30R J Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LPR100 30R J is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 30 Ohms
• Tolerance: ±5%
• Coating/Housing type: Aluminum
• Mounting feature: Screw Holes
• Lead style: Wire Leads
• Package/Case: Rectangular Case
• Operating temperature: 250°C
• Series: LPR
• Manufacturer: Ohmite
• RoHS3 Compliance
• REACH Unaffected status

Variable Parameter:

• Power rating: Substitutes must operate at equal or lower wattage ratings

The LPR50 30R J qualifies as a parametric equivalent because it maintains all mandatory matching parameters while operating at a reduced 50-watt power rating. This substitution is valid only in applications where the actual power dissipation does not exceed 50 watts.

Parameter Comparison

Engineering Selection Recommendations

Both the LPR100 30R J and LPR50 30R J maintain Active product status with identical RoHS3 compliance and REACH unaffected certifications. Selection between these components is determined by application power dissipation requirements.

The LPR100 30R J is specified for applications requiring the full 100-watt power rating. The LPR50 30R J provides an alternative for circuits where actual power dissipation remains at or below 50 watts. Both components share identical electrical characteristics (30 ohms, ±5% tolerance), mechanical mounting interfaces (screw holes), and thermal operating range (250°C maximum).

Dimensional differences exist between the two parts. The LPR100 30R J measures 3.937" L × 2.953" W (100.00mm × 75.00mm), while the LPR50 30R J measures 1.969" L × 2.953" W (50.00mm × 75.00mm). Both maintain identical height when seated at 0.244" (6.20mm). Space-constrained applications may benefit from the reduced length of the 50-watt variant.

Frequently Asked Questions (FAQ)

Q: Can the LPR50 30R J replace the LPR100 30R J in all applications?

A: The LPR50 30R J is electrically and mechanically compatible only in applications where power dissipation does not exceed 50 watts. Applications requiring the full 100-watt capacity must use the LPR100 30R J.

Q: What are the dimensional differences between these parts?

A: The primary dimensional difference is length. The LPR100 30R J is 3.937" (100.00mm) long, while the LPR50 30R J is 1.969" (50.00mm) long. Width and seated height are identical for both parts.

Q: Are both parts RoHS3 compliant?

A: Yes, both the LPR100 30R J and LPR50 30R J are RoHS3 compliant and REACH unaffected.

Q: Do these parts have identical resistance and tolerance specifications?

A: Yes, both parts are rated at 30 ohms with ±5% tolerance.

Q: What is the maximum operating temperature for both parts?

A: Both the LPR100 30R J and LPR50 30R J are rated for operation at temperatures up to 250°C.

Q: Are the mounting interfaces identical?

A: Yes, both parts feature screw hole mounting with wire leads and aluminum housing.

Q: What is the current inventory status?

A: The LPR100 30R J has 1125 pieces in stock. The LPR50 30R J has 866 pieces in stock.