LR1F243R Equivalent & Substitute Parts

Part Overview

The LR1F243R is a 243 Ohm ±1% metal film axial through-hole resistor rated for 0.6W continuous power dissipation, manufactured by TE Connectivity Passive Product. This component operates across the temperature range of -55°C to 155°C with a temperature coefficient of ±50ppm/°C. The part is ROHS3 compliant and currently in active production status with 722 pieces available in stock.

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same resistance value, tolerance, power rating, composition type, and operating temperature range. Substitute selection ensures functional interchangeability while accommodating different packaging formats and manufacturer sourcing requirements.

Substiute Parts

LR1F243R

TE Connectivity Passive ProductIn Stock: 793LR1F243R Datasheet

Current PartRFQ

MBB02070C2430FRP00

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 5983MBB02070C2430FRP00 Datasheet

DirectRFQ

MRS25000C2430FCT00

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 9076MRS25000C2430FCT00 Datasheet

DirectRFQ

MRS25000C2430FRP00

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 11046MRS25000C2430FRP00 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LR1F243R are qualified based on strict electrical and mechanical parameter matching. All substitute candidates maintain identical specifications for resistance value (243 Ohms), tolerance (±1%), power dissipation (0.6W), composition (metal film), temperature coefficient (±50ppm/°C), and operating temperature range (-55°C to 155°C). All substitute parts are packaged in axial configuration with two terminations and maintain ROHS3 compliance.

The substitute parts identified are manufactured by Vishay Beyschlag/Draloric/BC Components and are available in the MRS25 and MBB/SMA 0207 series. Substitution is valid across different packaging formats (Tape & Reel, Cut Tape, and Tape & Box) as these represent distribution and assembly variations rather than functional differences. Physical dimensions vary slightly between the main part (0.091" Dia x 0.244" L) and substitute parts (0.098" Dia x 0.256" L), remaining within acceptable tolerances for standard through-hole PCB applications.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts (MRS25000C2430FRP00, MRS25000C2430FCT00, and MBB02070C2430FRP00) are functionally equivalent to the LR1F243R and maintain active product status with ROHS3 compliance. Selection between these options is determined by packaging and sourcing requirements rather than electrical performance.

MRS25000C2430FRP00 is supplied in Tape & Reel format with 10,999 pieces in stock, suitable for high-volume automated assembly operations.

MRS25000C2430FCT00 is supplied in Cut Tape format with 8,972 pieces in stock, appropriate for moderate-volume or mixed-component assembly scenarios.

MBB02070C2430FRP00 is supplied in Cut Tape format with 5,923 pieces in stock and includes Automotive AEC-Q200 qualification, suitable for applications requiring automotive-grade component certification.

Frequently Asked Questions (FAQ)

Q: Are the substitute parts electrically identical to the LR1F243R?

A: Yes. All substitute parts maintain identical resistance (243 Ohms), tolerance (±1%), power rating (0.6W), temperature coefficient (±50ppm/°C), and operating temperature range (-55°C to 155°C). Metal film composition and electrical performance are equivalent across all qualified substitutes.

Q: What is the difference between the packaging formats offered?

A: Packaging format differences reflect distribution and assembly methods. Tape & Reel (TR) format is optimized for automated pick-and-place assembly in high-volume production. Cut Tape (CT) format accommodates manual or semi-automated assembly with smaller order quantities. Tape & Box (TB) format combines tape packaging with box containment. All formats contain identical components with no functional differences.

Q: Can the MBB02070C2430FRP00 be used in non-automotive applications?

A: Yes. The MBB02070C2430FRP00 includes Automotive AEC-Q200 qualification, which represents an additional certification level. This part is fully compatible with standard industrial and commercial applications and offers enhanced reliability qualification for automotive-grade use.

Q: Are there physical size differences between the main part and substitutes?

A: Minor physical dimension variations exist. The LR1F243R measures 0.091" Dia x 0.244" L (2.30mm x 6.20mm), while all Vishay substitutes measure 0.098" Dia x 0.256" L (2.50mm x 6.50mm). These differences remain within standard through-hole PCB design tolerances and do not affect functional compatibility or board layout in typical applications.

Q: Do all parts maintain the same compliance certifications?

A: All parts are ROHS3 compliant. The MBB02070C2430FRP00 additionally carries Automotive AEC-Q200 certification. REACH status differs: the main part lists Vendor Undefined, while all Vishay substitutes list REACH Unaffected. All parts carry EAR99 ECCN classification and 8533.21.0090 HTSUS code.