KA-11DG-110 Equivalent & Substitute Parts

Part Overview

The KA-11DG-110 is a general purpose relay manufactured by TE Connectivity Potter & Brumfield Relays, featuring a DPDT (2 Form C) contact configuration with a 110VDC coil and 10A contact rating. This chassis mount relay is designed for applications requiring reliable switching of AC loads up to 240VAC maximum.

The KA-11DG-110 carries an Obsolete product status. Identifying equivalent substitute parts is necessary to maintain system functionality and ensure continued availability for repair, replacement, and new design implementations where this relay specification is required.

Substiute Parts

KA-11DG-110

TE Connectivity Potter & Brumfield RelaysIn Stock: 674KA-11DG-110 Datasheet

Current PartRFQ

KRPA-11DG-110

TE Connectivity Potter & Brumfield RelaysIn Stock: 1209KRPA-11DG-110 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the KA-11DG-110 is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Requirements:

• Coil voltage: 110VDC
• Contact form: DPDT (2 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
• Contact material: Silver Cadmium Oxide (AgCdO)
• Coil type: Non Latching
• Coil insulation: Class B

Mechanical Compatibility Considerations:

• Mounting type differences (Chassis Mount vs. Socketable)
• Termination style differences (Solder Lug vs. Plug In, 8 Pin Octal)
• Operating temperature range variations

The KRPA-11DG-110 satisfies all electrical compatibility requirements and is manufactured by the same supplier, making it a valid substitute despite differences in mounting and termination methods.

Parameter Comparison

Engineering Selection Recommendations

The KRPA-11DG-110 is the primary substitute for the obsolete KA-11DG-110. Both relays are manufactured by TE Connectivity Potter & Brumfield Relays and share identical electrical specifications across all critical parameters: coil voltage, contact form, contact rating, switching voltage, coil current, coil resistance, must operate voltage, contact material, coil type, and coil insulation.

Product Status Consideration: The KA-11DG-110 is classified as Obsolete, while the KRPA-11DG-110 maintains Active product status. This status difference makes the KRPA-11DG-110 the appropriate long-term substitute for new designs and ongoing system support.

Compliance Status: Both parts are ROHS3 Compliant. The KRPA-11DG-110 carries REACH Affected status, whereas the KA-11DG-110 shows Vendor Undefined REACH status. For applications subject to REACH regulations, the KRPA-11DG-110 provides defined compliance documentation.

Mechanical Differences: The primary differences between these parts are mounting type and termination style. The KA-11DG-110 uses Chassis Mount with Solder Lug termination, while the KRPA-11DG-110 uses Socketable mounting with Plug In, 8 Pin (Octal) termination. These differences require corresponding changes to the circuit board layout, socket provisions, or wiring harness configuration.

Operating Temperature Range: The KA-11DG-110 operates across -45°C to 85°C, while the KRPA-11DG-110 operates across -45°C to 70°C. Applications requiring operation above 70°C must retain the original KA-11DG-110 specification or identify alternative solutions.

Frequently Asked Questions (FAQ)

Q: Can the KRPA-11DG-110 directly replace the KA-11DG-110 in existing assemblies?

A: Electrical substitution is valid. However, mechanical integration requires modification. The KA-11DG-110 uses Chassis Mount with Solder Lug termination, while the KRPA-11DG-110 requires Socketable mounting with an 8-pin octal socket. Circuit board redesign or adapter solutions are necessary for physical installation.

Q: Are the electrical characteristics identical between these two relays?

A: Yes. Both relays share identical specifications for coil voltage (110VDC), contact form (DPDT), contact rating (10A), switching voltage (240VAC max), coil current (11.5 mA), coil resistance (10 kOhms), must operate voltage (82.5 VDC), contact material (Silver Cadmium Oxide), coil type (Non Latching), and coil insulation (Class B).

Q: What is the significance of the Obsolete status for the KA-11DG-110?

A: Obsolete status indicates that the manufacturer has discontinued production and support for this part. The KRPA-11DG-110, with Active status, represents the current production equivalent and is the recommended substitute for new designs and long-term system support.

Q: Does the operating temperature range difference affect substitution?

A: The KA-11DG-110 operates to 85°C, while the KRPA-11DG-110 operates to 70°C. Applications requiring operation above 70°C cannot use the KRPA-11DG-110 as a substitute. Verify your application's maximum operating temperature requirement before selecting a substitute part.

Q: What compliance certifications apply to these relays?

A: Both relays are ROHS3 Compliant. The KRPA-11DG-110 carries REACH Affected status with defined compliance documentation. The KA-11DG-110 shows Vendor Undefined REACH status. For applications subject to REACH regulations, the KRPA-11DG-110 provides explicit compliance information.

Q: Are there inventory considerations for these parts?

A: The KA-11DG-110 (Obsolete) has 633 pieces in stock. The KRPA-11DG-110 (Active) has 1149 pieces in stock. Long-term availability is assured only for the Active KRPA-11DG-110.