LR1F523R Equivalent & Substitute Parts

Part Overview

The LR1F523R is a 523 Ohms ±1% 0.6W through-hole resistor manufactured by TE Connectivity Passive Product in the Neohm series. This axial metal film resistor is designed for general-purpose electronic applications requiring precision resistance values with tight tolerance specifications. The part is currently in active production status with 772 pieces available in stock. Substitute parts are identified when original manufacturer inventory is unavailable, when alternative packaging formats are required, or when equivalent electrical and mechanical specifications from other manufacturers meet application requirements.

Substiute Parts

LR1F523R

TE Connectivity Passive ProductIn Stock: 819LR1F523R Datasheet

Current PartRFQ

MRS25000C5230FCT00

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 4419MRS25000C5230FCT00 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LR1F523R is based on electrical parameter equivalence and mechanical compatibility. The following parameters must match or remain within acceptable ranges for direct substitution:

• Resistance value: 523 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.6W (exact match required)
• Composition: Metal Film (exact match required)
• Temperature coefficient: ±50ppm/°C (exact match required)
• Operating temperature range: -55°C to 155°C (exact match required)
• Package configuration: Axial through-hole (exact match required)
• Number of terminations: 2 (exact match required)
• RoHS compliance: ROHS3 Compliant (exact match required)

Physical dimensions may vary within industry-standard tolerances for axial resistors. Packaging format (Tape & Box versus Cut Tape) does not affect electrical performance and represents a logistical variation only.

Parameter Comparison

Engineering Selection Recommendations

The MRS25000C5230FCT00 manufactured by Vishay Beyschlag/Draloric/BC Components is a direct electrical equivalent to the LR1F523R. Both parts meet identical electrical specifications for resistance value, tolerance, power rating, temperature coefficient, and operating temperature range. Both components are ROHS3 compliant and carry the same ECCN and HTSUS classifications.

Physical dimensions differ slightly between the two parts. The MRS25000C5230FCT00 has a marginally larger diameter (0.098" versus 0.091") and length (0.256" versus 0.244"). These dimensional variations remain within standard axial resistor manufacturing tolerances and do not affect electrical performance or standard PCB footprint compatibility for through-hole applications.

The MRS25000C5230FCT00 is available in Cut Tape packaging format, whereas the LR1F523R is supplied in Tape & Box format. This represents a packaging and supply chain consideration only and does not impact component functionality.

Selection between these parts should be based on availability, lead time, packaging requirements, and procurement preferences. Both parts are active products with established supply chains.

Frequently Asked Questions (FAQ)

Q: Can the MRS25000C5230FCT00 be used as a direct replacement for the LR1F523R in existing designs?

A: Yes. The MRS25000C5230FCT00 meets all electrical specifications of the LR1F523R, including resistance value, tolerance, power rating, temperature coefficient, and operating temperature range. Physical dimensions are within standard manufacturing tolerances for axial resistors and are compatible with standard through-hole PCB layouts.

Q: Are there differences in reliability or failure rates between these parts?

A: Both parts are manufactured using metal film composition and are ROHS3 compliant. Failure rate data is not provided in the component specifications for either part. Both manufacturers produce components to industry standards for this resistor category.

Q: What is the difference between Tape & Box and Cut Tape packaging?

A: Tape & Box packaging includes a full reel of components on tape with a protective box. Cut Tape packaging provides components on tape segments cut to specified lengths. Both formats contain identical components; the difference is logistical and relates to order quantity and handling requirements.

Q: Do the dimensional differences between LR1F523R and MRS25000C5230FCT00 affect PCB design?

A: No. Both parts are axial through-hole resistors with standard lead spacing. The minor dimensional variations (0.091" to 0.098" diameter and 0.244" to 0.256" length) fall within industry-standard tolerances for this component category and do not require PCB layout modifications.

Q: Are both parts compliant with environmental and trade regulations?

A: Yes. Both the LR1F523R and MRS25000C5230FCT00 are ROHS3 compliant. Both carry ECCN classification EAR99 and HTSUS code 8533.21.0090. The MRS25000C5230FCT00 carries REACH Unaffected status.