Equivalent & Substitute Parts for Grayhill 78C07RAT DIP Switch

Part Overview

The Grayhill 78C07RAT is a 7-position DIP switch with SPST circuit configuration, rated for 25mA at 24VDC. This component features a slide actuator with raised level, phosphor bronze contacts finished in gold, and through-hole right-angle mounting. The 78C07RAT is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and production continuity. Substitute parts must maintain functional compatibility within the specified electrical and mechanical parameters while accommodating design constraints.

Substiute Parts

78C07RAT

Grayhill Inc.In Stock: 110978C07RAT Datasheet

Current PartRFQ

78B07RAT

Grayhill Inc.In Stock: 100378B07RAT Datasheet

DirectRFQ

KAS2107ET

E-SwitchIn Stock: 1099KAS2107ET Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 78C07RAT DIP switch are categorized based on electrical and mechanical compatibility within the allowed parameter ranges for this product category.

Direct Manufacturer Substitute (Grayhill 78B07RAT): This part maintains the same circuit configuration (SPST), position count (7), mounting type (through-hole right-angle), pitch (0.100"), and termination style (PC pin). The 78B07RAT operates at higher electrical ratings (150mA at 30VDC versus 25mA at 24VDC) and features an extended operating temperature range (-40°C ~ 85°C). The electrical life rating increases to 10,000 cycles. These enhanced specifications allow the 78B07RAT to function in applications requiring the 78C07RAT's core parameters while providing additional performance margin. The 78B07RAT is active product status with ROHS3 compliance.

Similar Manufacturer Substitute (E-Switch KAS2107ET): This part matches the 78C07RAT in circuit configuration (SPST), position count (7), current rating (25mA), voltage rating (24VDC), actuator type (slide standard), mounting type (through-hole right-angle), pitch (0.100"), contact material (phosphor bronze), contact finish (gold), and height above board (0.390"). The KAS2107ET introduces washable capability with tape seal features and operates across an extended temperature range (-40°C ~ 85°C). The body material differs (polybutylene terephthalate glass-filled versus plastic). The KAS2107ET is active product status with ROHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Grayhill 78B07RAT): Select this substitute when the application requires continuation within the Grayhill product family and can accommodate higher electrical ratings. The 78B07RAT provides enhanced performance specifications with extended electrical life (10,000 cycles versus 2,000 cycles) and broader operating temperature range. Active product status ensures long-term availability and supply chain stability. ROHS3 compliance meets current regulatory requirements. The marginal height reduction (0.380" versus 0.390") requires PCB layout verification for clearance compatibility.

For Cross-Manufacturer Substitution (E-Switch KAS2107ET): Select this substitute when electrical and mechanical specifications must match the 78C07RAT precisely while requiring active product status and extended temperature operation. The KAS2107ET maintains identical current and voltage ratings, contact materials, and physical mounting characteristics. Washable capability with tape seal features provides additional environmental protection. ROHS3 compliance and active product status support long-term design continuity. The polybutylene terephthalate glass-filled body material differs from the original plastic composition; verify material compatibility with application environment and assembly processes.

Both substitutes maintain SPST circuit configuration, 7-position count, through-hole right-angle mounting, 0.100" pitch, and PC pin termination. Both achieve MSL 1 (unlimited) moisture sensitivity rating and REACH unaffected status. Selection between substitutes depends on whether the application prioritizes manufacturer continuity (78B07RAT) or exact electrical parameter matching with cross-manufacturer sourcing (KAS2107ET).

Frequently Asked Questions (FAQ)

Q: Can the 78B07RAT replace the 78C07RAT in all applications?

A: The 78B07RAT maintains the same circuit configuration, position count, mounting type, and pitch as the 78C07RAT. The higher current rating (150mA versus 25mA) and voltage rating (30VDC versus 24VDC) allow operation in applications designed for the 78C07RAT. The reduced height above board (0.380" versus 0.390") requires verification that PCB layout and component clearances accommodate this 0.010" difference. The extended electrical life (10,000 cycles) and operating temperature range (-40°C ~ 85°C) provide additional performance margin.

Q: What are the key differences between the 78B07RAT and KAS2107ET?

A: Both parts maintain the 78C07RAT's electrical specifications (25mA at 24VDC for the KAS2107ET; 150mA at 30VDC for the 78B07RAT). The 78B07RAT uses copper alloy contacts versus phosphor bronze in the KAS2107ET. The KAS2107ET features washable capability with tape seal protection and polybutylene terephthalate glass-filled body material. The 78B07RAT offers extended electrical life (10,000 cycles versus 2,000 cycles). Both achieve active product status and ROHS3 compliance.

Q: Are there packaging differences between these substitutes?

A: The 78C07RAT is packaged in standard format (packaging not specified). The 78B07RAT is supplied in tube packaging. The KAS2107ET is supplied in bulk packaging. Packaging selection affects inventory management, component handling, and assembly line integration. Verify packaging compatibility with existing procurement and assembly processes.

Q: Do all three parts meet current regulatory compliance?

A: The 78C07RAT carries RoHS Compliant status. Both substitutes (78B07RAT and KAS2107ET) achieve ROHS3 Compliant status, representing current regulatory standards. All three parts are REACH Unaffected and carry EAR99 ECCN classification. MSL 1 (unlimited) rating applies to all parts.

Q: What is the mechanical life expectancy for these switches?

A: The 78C07RAT and KAS2107ET both specify 2,000 mechanical cycles. The 78B07RAT also specifies 2,000 mechanical cycles. Electrical life differs: the 78C07RAT and KAS2107ET specify 2,000 electrical cycles, while the 78B07RAT specifies 10,000 electrical cycles. Application duty cycle and switching frequency determine which specification is relevant for component selection.

Q: Can the KAS2107ET washable feature be used in the 78C07RAT's original application?

A: The KAS2107ET washable capability with tape seal features provides additional environmental protection beyond the 78C07RAT's non-washable specification. This feature does not prevent use in applications where washability is not required. Verify that the tape seal and washable design do not introduce incompatibilities with existing assembly processes or environmental exposure conditions.