KA-14DG-110 Equivalent & Substitute Parts

Part Overview

The KA-14DG-110 is a general purpose relay manufactured by TE Connectivity Potter & Brumfield Relays, featuring a 3PDT (3 Form C) contact configuration with a 110VDC coil and 10A contact rating. This relay is designed for chassis mount applications with solder lug termination. The product is currently classified as obsolete, making identification of suitable substitute components necessary for ongoing system maintenance and new design implementations where equivalent functionality is required.

Substiute Parts

KA-14DG-110

TE Connectivity Potter & Brumfield RelaysIn Stock: 953KA-14DG-110 Datasheet

Current PartRFQ

KRPA-14DG-110

TE Connectivity Potter & Brumfield RelaysIn Stock: 821KRPA-14DG-110 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the KA-14DG-110 is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Coil voltage: 110VDC
• Contact form: 3PDT (3 Form C)
• Contact rating: 10 A minimum
• Switching voltage: 240VAC maximum
• Coil current: 11.5 mA
• Coil resistance: 10 kOhms
• Must operate voltage: 82.5 VDC

Mechanical and Environmental Compatibility:

• Contact material: Silver Cadmium Oxide (AgCdO)
• Coil type: Non Latching
• Coil insulation: Class B
• Operating temperature range: Must accommodate -45°C ~ 85°C minimum
• RoHS3 compliance

The KRPA-14DG-110 meets all electrical equivalence requirements and maintains identical coil specifications, contact configuration, and material composition. The primary distinction is the mounting and termination approach: the KA-14DG-110 uses chassis mount with solder lug termination, while the KRPA-14DG-110 employs socketable mounting with 11-pin octal plug-in termination. This difference requires evaluation based on circuit board design and installation methodology.

Parameter Comparison

Engineering Selection Recommendations

KRPA-14DG-110 as Primary Substitute:

The KRPA-14DG-110 is the direct electrical equivalent to the KA-14DG-110, with all critical electrical parameters matching precisely. The KRPA-14DG-110 holds active product status from TE Connectivity Potter & Brumfield Relays, ensuring ongoing availability and manufacturing support. Both components maintain ROHS3 compliance and identical coil specifications.

Termination and Mounting Considerations:

Selection between these components depends on circuit implementation:

• KA-14DG-110 (Obsolete): Chassis mount with solder lug termination requires direct PCB soldering or wire attachment to solder lugs. This configuration is suitable for applications where permanent mounting and direct solder connections are specified.

• KRPA-14DG-110 (Active): Socketable design with 11-pin octal plug-in termination enables tool-free relay replacement without soldering. This configuration is suitable for applications utilizing octal relay sockets and allows field replacement without desoldering.

Temperature Range Limitation:

The KRPA-14DG-110 operating temperature range (-45°C ~ 70°C) is narrower than the KA-14DG-110 (-45°C ~ 85°C). Applications requiring operation above 70°C must retain the original KA-14DG-110 specification or identify alternative components with extended upper temperature limits.

Compliance and Availability:

The KRPA-14DG-110 is recommended for new designs and replacement applications where socketable mounting is compatible with circuit design. The active product status ensures long-term component availability and manufacturing consistency.

Frequently Asked Questions (FAQ)

Q: Can the KRPA-14DG-110 directly replace the KA-14DG-110 in existing applications?

A: Electrical substitution is valid; all coil voltages, contact configurations, current ratings, and switching specifications are identical. However, the termination method differs: KA-14DG-110 uses solder lugs for direct soldering, while KRPA-14DG-110 uses an 11-pin octal plug-in connector. Physical circuit board layout and socket availability determine practical substitution feasibility.

Q: What is the significance of the different mounting types?

A: The KA-14DG-110 chassis mount with solder lug termination requires permanent soldering to the circuit board or wire connections. The KRPA-14DG-110 socketable design with octal plug-in termination allows insertion into an octal relay socket, enabling relay replacement without desoldering. Circuit design must accommodate the appropriate socket or solder connection method.

Q: Are there temperature limitations when substituting the KRPA-14DG-110?

A: Yes. The KRPA-14DG-110 operates within -45°C to 70°C, while the KA-14DG-110 operates within -45°C to 85°C. Applications requiring operation above 70°C cannot use the KRPA-14DG-110 as a substitute. Verify application temperature requirements before component selection.

Q: Do both relays have identical electrical specifications?

A: Yes. Both components share identical coil voltage (110VDC), contact form (3PDT), contact rating (10A), switching voltage (240VAC maximum), coil current (11.5 mA), coil resistance (10 kOhms), must operate voltage (82.5 VDC), contact material (Silver Cadmium Oxide), and coil insulation (Class B).

Q: What is the product status difference between these components?

A: The KA-14DG-110 is classified as obsolete, indicating discontinued manufacturing and limited availability. The KRPA-14DG-110 maintains active product status, ensuring ongoing manufacturing support, consistent availability, and long-term supply chain reliability.

Q: Are both components RoHS3 compliant?

A: Yes. Both the KA-14DG-110 and KRPA-14DG-110 are ROHS3 compliant, meeting environmental and regulatory requirements for lead-free manufacturing and restricted substance limitations.

Q: What packaging differences exist between these components?

A: The KA-14DG-110 is supplied in standard packaging, while the KRPA-14DG-110 is supplied in tray packaging. Packaging format may affect inventory management and component handling procedures but does not affect electrical or mechanical performance.