Storm Interface 4K042103 Keypad Switch - Equivalent & Substitute Parts

Part Overview

The Storm Interface 4K042103 is a 4-key polymer keypad switch with conductive rubber contacts, rated for 0.05A at 24VDC. This non-illuminated matrix output switch features fixed legends (F1 ~ F4) and panel mount termination via pin header. The product is currently obsolete, making identification of compatible substitute parts essential for system maintenance, repair, and component sourcing.

Substiute Parts

4K042103

Storm InterfaceIn Stock: 6934K042103 Datasheet

Current PartRFQ

3K042103

Storm InterfaceIn Stock: 8423K042103 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 4K042103 is determined by strict equivalence across the following critical parameters:

• Number of Keys: Must be 4
• Matrix Configuration: Must be 1 x 4
• Switch Type: Must be Conductive Rubber
• Contact Rating: Must be 0.05A @ 24VDC
• Output Type: Must be Matrix
• Illumination: Must be Non-Illuminated
• Key Type: Must be Polymer
• Mounting Type: Must be Panel Mount, Front or Rear
• Termination Style: Must be Pin Header
• Panel Cutout Dimensions: Must be Rectangular - 82.50mm x 25.50mm

The Storm Interface 3K042103 meets all substitution criteria. This part belongs to the 3000 series and maintains functional and electrical equivalence to the 4K042103, with enhanced operational specifications.

Parameter Comparison

Engineering Selection Recommendations

The Storm Interface 3K042103 is the qualified substitute for the obsolete 4K042103. Both parts maintain identical electrical and mechanical specifications for the core switching function, ensuring direct functional compatibility in existing circuit designs and panel layouts.

The 3K042103 offers enhanced operational characteristics: extended operating temperature range (-10°C ~ 85°C versus 0°C ~ 70°C), IP54 ingress protection rating, and doubled operational life (2,000,000 cycles versus 1,000,000 cycles). These improvements provide greater reliability margins in field applications without requiring design modifications.

Both parts carry ROHS3 compliance and CE approval, meeting current regulatory requirements. The 3K042103 is currently in active production status, ensuring long-term availability and supply chain stability compared to the obsolete 4K042103.

Frequently Asked Questions (FAQ)

Q: Can the 3K042103 be used as a direct replacement for the 4K042103?

A: Yes. The 3K042103 maintains identical electrical ratings (0.05A @ 24VDC), matrix configuration (1 x 4), key count (4), mounting dimensions (82.50mm x 25.50mm), and termination style (pin header). No circuit or mechanical modifications are required.

Q: What are the key differences between these parts?

A: The 3K042103 provides enhanced specifications: wider operating temperature range (-10°C ~ 85°C), IP54 ingress protection, and extended operational life (2,000,000 cycles). The 4K042103 operates within 0°C ~ 70°C with 1,000,000 cycle rating and no specified ingress protection.

Q: Why is the 4K042103 obsolete?

A: The 4K042103 belongs to the 4000 series, which has been superseded by the 3000 series (3K042103). The newer series offers improved performance specifications and active manufacturing support.

Q: Are there packaging differences between these parts?

A: The 4K042103 is supplied in standard packaging, while the 3K042103 is supplied in bulk packaging. Both use identical pin header termination and panel mount configuration.

Q: Do both parts meet current compliance standards?

A: Yes. Both the 4K042103 and 3K042103 are ROHS3 compliant, CE approved, and REACH unaffected. The 3K042103, being in active production, ensures ongoing compliance with evolving regulatory requirements.

Q: What is the panel cutout requirement for installation?

A: Both parts require an identical rectangular panel cutout of 82.50mm x 25.50mm. Existing panel designs require no modification when substituting the 3K042103 for the 4K042103.