WEPLXT203 Equivalent & Substitute Parts

Part Overview

The WEPLXT203 is a 12-key non-illuminated keypad switch manufactured by Storm Interface, featuring conductive rubber contacts and Wiegand™ output. This component is designated as Last Time Buy, indicating discontinued production. The identification of equivalent substitute parts is necessary to support ongoing system maintenance, repair, and new design implementations where Wiegand™ output functionality is not a critical requirement or where alternative output protocols are acceptable.

Substiute Parts

WEPLXT203

Storm InterfaceIn Stock: 1023WEPLXT203 Datasheet

Current PartRFQ

1K120103

Storm InterfaceIn Stock: 8981K120103 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the WEPLXT203 is determined by the following critical parameters:

• Switch Type: Conductive Rubber (required match)
• Number of Keys: 12 (required match)
• Matrix Configuration: 3 x 4 (required match)
• Illumination: Non-Illuminated (required match)
• Key Type: Metal (required match)
• Ingress Protection: IP65 minimum (required match)
• Operational Life: 4,000,000 Cycles minimum (required match)
• RoHS Compliance: ROHS3 Compliant (required match)

The substitute part 1K120103 meets all mandatory compatibility criteria. The primary functional difference is the output type: the WEPLXT203 provides Wiegand™ output, while the 1K120103 provides Matrix output. This distinction requires system-level evaluation based on the application's input protocol requirements.

Parameter Comparison

Engineering Selection Recommendations

The 1K120103 is an active product with extended availability, making it suitable for applications where Wiegand™ output is not a system requirement. Selection of this substitute requires confirmation that the host system can accept Matrix output protocol. The 1K120103 provides an extended operating temperature range (-40°C ~ 100°C) compared to the WEPLXT203 (-20°C ~ 70°C), offering broader environmental compatibility. Both components maintain identical mechanical specifications (12 keys, 3 x 4 matrix, metal keys, conductive rubber contacts) and equivalent durability ratings (4,000,000 cycles). Termination style differs (Screw Terminal vs. Pin Header), requiring connector interface verification during integration. Both components carry CE approval and ROHS3 compliance, meeting equivalent regulatory standards.

Frequently Asked Questions (FAQ)

Q: Can the 1K120103 directly replace the WEPLXT203 in existing systems?

A: Direct replacement requires system-level compatibility verification. The primary difference is output protocol: WEPLXT203 outputs Wiegand™ format, while 1K120103 outputs Matrix format. The host system must support Matrix input to accept the 1K120103 without additional interface circuitry.

Q: What are the mechanical compatibility considerations?

A: Both components share identical key count (12), matrix configuration (3 x 4), key material (metal), and contact type (conductive rubber). The 1K120103 supports both front and rear panel mounting, while the WEPLXT203 is front-mount only. Termination differs: WEPLXT203 uses screw terminals; 1K120103 uses pin headers. Connector interface must be verified during integration.

Q: Are there temperature range implications for substitution?

A: The 1K120103 operates across -40°C ~ 100°C, compared to the WEPLXT203 range of -20°C ~ 70°C. For applications within the WEPLXT203 temperature envelope, both components are equivalent. For extended temperature environments, the 1K120103 provides superior thermal performance.

Q: Do both components meet the same compliance standards?

A: Yes. Both the WEPLXT203 and 1K120103 are ROHS3 compliant, CE approved, and REACH unaffected. Compliance requirements are equivalent between the two components.

Q: What is the significance of product status differences?

A: The WEPLXT203 is Last Time Buy (discontinued), while the 1K120103 is Active. The 1K120103 offers long-term availability for ongoing production and support requirements.