Equivalent & Substitute Parts for 8GA1024-Z

Part Overview

The 8GA1024-Z is a toggle switch manufactured by Nidec Components Corporation, classified as SPDT (Single Pole Double Throw) with On-Off-On functionality. This through-hole, right-angle mounted switch is rated for 6A at 125V AC and 4A at 30V DC, with a standard round actuator and PC pin termination. The product is currently obsolete, making equivalent substitute parts necessary for ongoing maintenance, repair, and new design implementations where this switch specification remains applicable.

Substiute Parts

8GA1024-Z

Nidec Components CorporationIn Stock: 8868GA1024-Z Datasheet

Current PartRFQ

7103SPY9AQE

C&KIn Stock: 9257103SPY9AQE Datasheet

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7103SY9A2GE

C&KIn Stock: 7777103SY9A2GE Datasheet

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7103SY9AQE

C&KIn Stock: 11977103SY9AQE Datasheet

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A121S1D9AB

ElectroswitchIn Stock: 870A121S1D9AB Datasheet

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A121S1D9AQ

ElectroswitchIn Stock: 1253A121S1D9AQ Datasheet

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A121S1Y9AB

ElectroswitchIn Stock: 1132A121S1Y9AB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 8GA1024-Z are grouped based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Critical Matching Parameters:

• Circuit configuration (SPDT required)
• Voltage rating capability (minimum 125V AC for primary applications)
• Current rating capability (minimum 6A AC for primary applications)
• Mounting type (Through Hole, Right Angle)
• Termination style (PC Pin)
• Actuator type and length compatibility

Substitution Groups:

Group 1: Full Electrical Equivalents (125V/6A AC Rating)

• A121S1D9AQ (Electroswitch): Matches 125V AC and 6A AC rating with identical mounting and termination

Group 2: Reduced Voltage/Current Equivalents (120V/5A AC Rating)

• 7103SPY9AQE (C&K)
• 7103SY9AQE (C&K)
• 7103SY9A2GE (C&K)

These parts operate at 120V AC and 5A AC, suitable for applications where the 8GA1024-Z specifications exceed actual circuit requirements.

Group 3: Low-Voltage Equivalents (28V Rating)

• A121S1D9AB (Electroswitch)
• A121S1Y9AB (Electroswitch)

These parts are rated for 28V AC/DC at 0.5VA, applicable only to low-voltage circuit implementations.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: A121S1D9AQ

The A121S1D9AQ from Electroswitch is the direct electrical equivalent for the 8GA1024-Z. It maintains the 6A AC and 125V AC rating, identical circuit configuration (SPDT), and matching mounting specifications. The part is currently in active production status with RoHS compliance certification. Electrical life rating of 60,000 cycles exceeds the original specification. DC voltage rating of 28V is marginally lower than the original 30V but remains suitable for standard industrial applications.

Secondary Substitutes: 7103SY9AQE, 7103SPY9AQE

These C&K parts are suitable for applications where the 8GA1024-Z specifications exceed actual circuit requirements. Both are rated for 5A AC at 120V AC with active product status and ROHS3 compliance. The reduced current and voltage ratings necessitate circuit analysis to confirm compatibility. Actuator length is marginally longer (10.67mm vs. 10.50mm), requiring panel cutout verification.

Not Recommended for Direct Substitution: 7103SY9A2GE

While electrically similar to 7103SY9AQE, this variant is RoHS non-compliant and should not be selected for new designs or applications requiring regulatory compliance.

Low-Voltage Applications Only: A121S1D9AB, A121S1Y9AB

These parts are suitable only for circuits operating at 28V or lower. The 0.5A current rating and 28V voltage specification make them incompatible with standard 125V/6A applications.

Frequently Asked Questions (FAQ)

Q: Can A121S1D9AQ directly replace 8GA1024-Z in all applications?

A: A121S1D9AQ is electrically equivalent for standard industrial switching applications. The 28V DC rating is 2V lower than the original 30V specification. Applications operating at or above 28V DC require circuit analysis to confirm compatibility. All AC applications at 125V and 6A are fully compatible.

Q: What is the difference between 7103SY9AQE and 7103SPY9AQE?

A: Both parts share identical electrical specifications (5A AC, 120V AC) and mounting characteristics. The primary difference is actuator type: 7103SPY9AQE features anti-rotation design, while 7103SY9AQE uses standard round actuator. Selection depends on panel design requirements and actuator retention needs.

Q: Why is 7103SY9A2GE listed if it is RoHS non-compliant?

A: This part is included for reference in legacy system maintenance where RoHS compliance is not a requirement. For new designs and applications subject to regulatory compliance standards, ROHS3-compliant alternatives (7103SY9AQE or A121S1D9AQ) must be selected.

Q: Are the low-voltage Electroswitch parts (A121S1D9AB, A121S1Y9AB) suitable for 125V applications?

A: No. These parts are rated for 28V AC/DC maximum and 0.5A current. They are not suitable for 125V applications and will not function correctly at the original part's voltage specification.

Q: How do actuator length differences affect mechanical compatibility?

A: The 8GA1024-Z actuator length is 10.50mm. Substitute parts range from 10.41mm to 10.67mm. These variations are within typical manufacturing tolerances for panel-mounted switches. Panel cutout dimensions and actuator clearance must be verified during installation to ensure proper fit and operation.

Q: What is the significance of electrical life ratings in substitute selection?

A: The 8GA1024-Z is rated for 50,000 cycles. Substitute parts from Electroswitch (60,000 cycles) exceed this specification, providing extended service life. C&K parts (40,000 cycles) fall below the original specification and should be evaluated for applications requiring extended cycle life.

Q: Can I use 5A-rated parts in place of 6A-rated parts?

A: No. The 5A-rated C&K parts (7103SY9AQE, 7103SPY9AQE, 7103SY9A2GE) must not be used in circuits requiring 6A capacity. Circuit analysis is required to confirm that actual current draw does not exceed 5A before substitution.