LR1F18R2 Equivalent & Substitute Parts

Part Overview

The LR1F18R2 is an 18.2 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 applications requiring precision resistance values with tight tolerance specifications. The part is currently active in production with 652 pieces available in inventory. Substitute parts are identified when equivalent electrical and mechanical specifications are required due to supply constraints, procurement preferences, or design flexibility needs.

Substiute Parts

LR1F18R2

TE Connectivity Passive ProductIn Stock: 716LR1F18R2 Datasheet

Current PartRFQ

MRS25000C1829FCT00

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 728MRS25000C1829FCT00 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LR1F18R2 is determined by matching the following critical parameters:

• Resistance Value: 18.2 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 ~ 155°C (exact match required)
• Package Type: Axial (exact match required)
• Terminations: 2 (exact match required)
• Compliance: ROHS3 Compliant (exact match required)

The MRS25000C1829FCT00 meets all substitution criteria as a direct equivalent part. Physical dimensions vary slightly between manufacturers but remain within acceptable tolerances for standard through-hole PCB applications.

Parameter Comparison

Engineering Selection Recommendations

Both the LR1F18R2 and MRS25000C1829FCT00 are active production parts with full ROHS3 compliance and equivalent electrical specifications. Selection between these parts is based on the following factors:

LR1F18R2 (TE Connectivity Passive Product)

• Preferred when Tape & Box packaging is required for automated assembly processes
• Suitable for applications where TE Connectivity supply chain integration is established
• Current inventory: 652 pieces

MRS25000C1829FCT00 (Vishay Beyschlag/Draloric/BC Components)

• Preferred when Cut Tape packaging is acceptable or required
• Suitable for applications where Vishay component qualification is in place
• Current inventory: 706 pieces
• REACH Unaffected status provides additional regulatory clarity

Both parts are suitable for direct substitution in circuits requiring 18.2 Ohm ±1% 0.6W metal film axial resistors operating across the -55°C to 155°C temperature range. Physical dimension variations are negligible for standard through-hole PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can MRS25000C1829FCT00 be used as a direct replacement for LR1F18R2?

A: Yes. Both parts share identical electrical specifications: 18.2 Ohms ±1%, 0.6W power rating, metal film composition, ±50ppm/°C temperature coefficient, and -55°C to 155°C operating range. Both are ROHS3 compliant with 2 terminations in axial package configuration.

Q: What are the physical dimension differences between these parts?

A: The LR1F18R2 measures 0.091" diameter x 0.244" length (2.30mm x 6.20mm). The MRS25000C1829FCT00 measures 0.098" diameter x 0.256" length (2.50mm x 6.50mm). These minor variations do not affect standard through-hole PCB mounting.

Q: Does packaging format affect substitution eligibility?

A: Packaging format (Tape & Box versus Cut Tape) does not affect electrical or mechanical compatibility. Format selection depends on assembly process requirements and inventory management preferences.

Q: Are there compliance differences between these parts?

A: Both parts are ROHS3 compliant. The MRS25000C1829FCT00 carries explicit REACH Unaffected status, while the LR1F18R2 lists REACH status as Vendor Undefined. Both parts carry EAR99 ECCN classification and identical HTSUS codes.

Q: Can these parts be used interchangeably in high-precision applications?

A: Yes. Both parts meet ±1% tolerance and ±50ppm/°C temperature coefficient specifications required for precision applications. Electrical performance is equivalent across the full operating temperature range.

Q: What inventory considerations apply to substitution?

A: The LR1F18R2 has 652 pieces in stock, while the MRS25000C1829FCT00 has 706 pieces available. Substitution selection may be influenced by immediate availability requirements.