LR1F22K1 Equivalent & Substitute Parts

Part Overview

The LR1F22K1 is a 22.1 kOhms ±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 and widely available. Substitute parts are identified when the primary part becomes unavailable, when alternative packaging formats are required, or when supply chain optimization necessitates component alternatives that maintain identical electrical and mechanical specifications.

Substiute Parts

LR1F22K1

TE Connectivity Passive ProductIn Stock: 840LR1F22K1 Datasheet

Current PartRFQ

MRS25000C2212FRP00

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 4256MRS25000C2212FRP00 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LR1F22K1 is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Resistance value: 22.1 kOhms (exact match)
• Tolerance: ±1% (exact match)
• Power rating: 0.6W (exact match)
• Composition: Metal Film (exact match)
• Temperature coefficient: ±50ppm/°C (exact match)
• Operating temperature range: -55°C ~ 155°C (exact match)

Mechanical Equivalence Requirements:

• Package type: Axial (exact match)
• Number of terminations: 2 (exact match)

Compliance Requirements:

• RoHS3 Compliant status (exact match)

The substitute part MRS25000C2212FRP00 meets all electrical and mechanical equivalence criteria. Physical dimensions vary slightly (0.098" Dia x 0.256" L versus 0.091" Dia x 0.244" L), which is acceptable within standard axial resistor form factor tolerances and does not affect circuit board layout compatibility for standard through-hole applications.

Parameter Comparison

Engineering Selection Recommendations

The MRS25000C2212FRP00 is a direct electrical and mechanical equivalent to the LR1F22K1. Both components are active products with ROHS3 compliance and identical electrical specifications. Selection between these parts should be based on the following factors:

Availability and Lead Time: The MRS25000C2212FRP00 maintains higher inventory levels (4226 pcs versus 764 pcs), making it suitable for applications where supply continuity is critical.

Packaging Format: The LR1F22K1 is supplied in Tape & Box format, while the MRS25000C2212FRP00 is supplied in Cut Tape format. Packaging selection depends on assembly process requirements and volume considerations.

Physical Dimensions: Minor dimensional differences exist within acceptable axial resistor form factor tolerances. Verification of board layout clearances is necessary only if the application involves space-constrained designs with tight component spacing.

Regulatory Compliance: Both parts meet ROHS3 requirements. The MRS25000C2212FRP00 carries REACH Unaffected status, while the LR1F22K1 shows Vendor Undefined REACH status. For applications subject to REACH regulations, the MRS25000C2212FRP00 provides explicit compliance documentation.

Frequently Asked Questions (FAQ)

Q: Can the MRS25000C2212FRP00 be used as a direct replacement for the LR1F22K1 in all applications?

A: Yes. Both components share identical electrical specifications (22.1 kOhms ±1%, 0.6W, ±50ppm/°C, -55°C ~ 155°C operating range) and are both axial metal film resistors with two terminations. Physical dimensions vary slightly but remain within standard axial resistor form factor tolerances.

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, typically used for larger orders or inventory management. Cut Tape packaging provides components on tape segments cut to specific lengths, commonly used for smaller quantities or automated assembly processes. The electrical and mechanical properties of the components are identical regardless of packaging format.

Q: Are there dimensional compatibility concerns when substituting the MRS25000C2212FRP00 for the LR1F22K1?

A: The MRS25000C2212FRP00 has slightly larger dimensions (0.098" Dia x 0.256" L versus 0.091" Dia x 0.244" L). These differences fall within standard axial resistor form factor tolerances and do not affect compatibility in standard through-hole applications. Applications with extremely tight component spacing should verify clearances before substitution.

Q: Do both parts meet the same regulatory compliance standards?

A: Both parts are ROHS3 compliant. The MRS25000C2212FRP00 carries explicit REACH Unaffected status, while the LR1F22K1 shows Vendor Undefined REACH status. For applications requiring documented REACH compliance, the MRS25000C2212FRP00 is the preferred choice.

Q: What determines whether a part can substitute for the LR1F22K1?

A: Substitution eligibility requires exact equivalence in resistance value (22.1 kOhms), tolerance (±1%), power rating (0.6W), composition (metal film), temperature coefficient (±50ppm/°C), operating temperature range (-55°C ~ 155°C), package type (axial), and termination count (2). All substitute parts must also maintain ROHS3 compliance.

Q: Can I use a different resistance value or tolerance if the exact part is unavailable?

A: No. Resistance value and tolerance are critical circuit parameters. Substitution is limited to parts with identical electrical specifications. Using different values or tolerances will alter circuit behavior and may cause circuit malfunction.