LR1F187R Equivalent & Substitute Parts

Part Overview

The LR1F187R is a 187 Ohm ±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 957 pieces available in inventory. Equivalent and substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when procurement requirements necessitate alternative manufacturers or packaging configurations.

Substiute Parts

LR1F187R

TE Connectivity Passive ProductIn Stock: 1044LR1F187R Datasheet

Current PartRFQ

MRS25000C1870FCT00

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 1977MRS25000C1870FCT00 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LR1F187R is determined by electrical and mechanical parameter equivalence. The substitute part MRS25000C1870FCT00 qualifies as a direct equivalent based on the following criteria:

Electrical Parameters (Must Match):

• Resistance value: 187 Ohms
• Tolerance: ±1%
• Power rating: 0.6W
• Temperature coefficient: ±50ppm/°C
• Operating temperature range: -55°C ~ 155°C

Mechanical Parameters (Must Match):

• Package type: Axial
• Number of terminations: 2
• Composition: Metal Film

Compliance Parameters (Must Match):

• RoHS3 Compliant status

The substitute part differs only in packaging configuration (Cut Tape versus Tape & Box) and physical dimensions within acceptable axial resistor tolerances. These differences do not affect electrical performance or functional compatibility in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both the LR1F187R and MRS25000C1870FCT00 are active production parts with ROHS3 compliance and identical electrical specifications. Selection between these parts is determined by procurement and packaging requirements rather than electrical performance.

LR1F187R (TE Connectivity) is appropriate when:

• Tape & Box packaging is required for inventory management
• TE Connectivity supply chain integration is preferred
• Current inventory availability (957 pieces) meets project timelines

MRS25000C1870FCT00 (Vishay Beyschlag) is appropriate when:

• Cut Tape packaging is required for automated assembly processes
• Vishay supply chain integration is preferred
• Higher inventory availability (1911 pieces) is advantageous
• REACH Unaffected status is a procurement requirement

Both parts satisfy identical electrical and thermal performance requirements for circuit applications operating within the specified temperature range.

Frequently Asked Questions (FAQ)

Q: Can MRS25000C1870FCT00 be used as a direct replacement for LR1F187R in circuit applications?

A: Yes. Both parts have identical electrical specifications: 187 Ohms ±1% tolerance, 0.6W power rating, ±50ppm/°C temperature coefficient, and -55°C ~ 155°C operating range. Functional performance in circuits is equivalent.

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

A: Tape & Box packaging includes a protective box for storage and manual handling. Cut Tape packaging is supplied on continuous tape and is optimized for automated pick-and-place assembly equipment. Both contain the same component; packaging selection depends on assembly process requirements.

Q: Are the physical dimension differences between these parts significant?

A: The LR1F187R measures 0.091" diameter x 0.244" length, while the MRS25000C1870FCT00 measures 0.098" diameter x 0.256" length. Both are standard axial resistor dimensions. Dimension differences are within normal manufacturing tolerances for axial resistors and do not affect circuit board layout compatibility for standard through-hole applications.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant with EAR99 ECCN classification and identical HTSUS codes (8533.21.0090). The MRS25000C1870FCT00 carries REACH Unaffected status, while the LR1F187R lists REACH status as Vendor Undefined. Both parts are suitable for regulated applications.

Q: Which part should be selected for high-volume automated assembly?

A: The MRS25000C1870FCT00 in Cut Tape packaging is optimized for automated assembly processes. The LR1F187R in Tape & Box packaging is suitable for manual assembly or lower-volume applications.

Q: Are temperature performance characteristics identical?

A: Yes. Both parts operate across -55°C ~ 155°C with ±50ppm/°C temperature coefficient, ensuring equivalent thermal stability and performance across the full operating range.