TE Connectivity 1879103-1 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1879103-1 is a 56 Ohm ±5% 3W axial wirewound resistor with flame proof and safety features. This component is classified as obsolete, necessitating identification of active equivalent parts for ongoing design requirements and procurement needs. The part is RoHS3 compliant and suitable for through-hole applications requiring 3W power dissipation in a compact axial package.

Substiute Parts

1879103-1

TE Connectivity Passive ProductIn Stock: 10051879103-1 Datasheet

Current PartRFQ

PNP3WVJR-73-56R

YAGEOIn Stock: 1011PNP3WVJR-73-56R Datasheet

DirectRFQ

PNP300JR-73-56R

YAGEOIn Stock: 4227PNP300JR-73-56R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 1879103-1 is determined by strict equivalence across the following parameters: resistance value (56 Ohms), tolerance (±5%), power rating (3W), composition (wirewound), and package configuration (axial with 2 terminations). All substitute parts must maintain RoHS3 compliance and EAR99 classification. The identified substitutes are YAGEO components that satisfy these core electrical and mechanical requirements while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

YAGEO PNP3WVJR-73-56R is the primary direct substitute for the TE Connectivity 1879103-1. This part maintains identical electrical specifications (56 Ohms ±5% 3W), identical physical dimensions (0.217" Dia x 0.512" L), and active product status. Both components feature wirewound construction with safety characteristics and are RoHS3 compliant. The PNP3WVJR-73-56R is supplied in Tape & Reel packaging and includes specified operating temperature range (-40°C ~ 200°C).

YAGEO PNP300JR-73-56R is a secondary substitute that satisfies all core electrical requirements (56 Ohms ±5% 3W wirewound axial) and compliance standards. This part differs in physical dimensions (0.181" Dia x 0.453" L versus 0.217" Dia x 0.512" L) and is supplied in Cut Tape packaging. The dimensional difference requires verification of board layout compatibility before selection.

Both YAGEO substitutes offer superior availability compared to the obsolete TE Connectivity part and maintain full regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can YAGEO PNP3WVJR-73-56R directly replace TE Connectivity 1879103-1 without design modification?

A: Yes. The PNP3WVJR-73-56R maintains identical electrical specifications (56 Ohms ±5% 3W), identical physical dimensions (0.217" Dia x 0.512" L), and identical axial package configuration. No design modification is required for direct substitution.

Q: What is the primary difference between PNP3WVJR-73-56R and PNP300JR-73-56R?

A: Both parts meet identical electrical requirements. The key differences are physical dimensions and packaging format. The PNP3WVJR-73-56R maintains the original 0.217" Dia x 0.512" L dimensions and is supplied in Tape & Reel format. The PNP300JR-73-56R has smaller dimensions (0.181" Dia x 0.453" L) and is supplied in Cut Tape format.

Q: Is board layout modification necessary when using PNP300JR-73-56R?

A: The PNP300JR-73-56R has different physical dimensions than the original part. Board layout compatibility must be verified before selection, as the smaller size may affect hole spacing and component placement.

Q: Are both YAGEO substitutes RoHS3 compliant?

A: Yes. Both PNP3WVJR-73-56R and PNP300JR-73-56R are RoHS3 compliant and carry EAR99 classification, matching the compliance profile of the original TE Connectivity part.

Q: What is the operating temperature range for the substitute parts?

A: Both YAGEO substitutes operate across -40°C to 200°C. The original TE Connectivity part does not specify an operating temperature range in the provided data.

Q: Which substitute offers better availability?

A: YAGEO PNP300JR-73-56R currently has the highest inventory (4171 Pcs), followed by PNP3WVJR-73-56R (974 Pcs). Both are active products with superior availability compared to the obsolete TE Connectivity part (962 Pcs remaining stock).