ICT-12C Equivalent & Substitute Parts

Part Overview

The ICT-12C is a Transient Voltage Suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose transient protection applications. This bidirectional Zener diode operates with a 12V reverse standoff voltage and provides 17.1V clamping at peak pulse current. The device is packaged in a DO-13 through-hole configuration and is currently in active production status with 1078 units in stock.

Equivalent and substitute parts are identified when they satisfy the core electrical and mechanical parameters required for transient voltage suppression in the same application class, including reverse standoff voltage, clamping voltage, peak pulse current capability, and power dissipation ratings.

Substiute Parts

ICT-12C

Microchip TechnologyIn Stock: 1107ICT-12C Datasheet

Current PartRFQ

1.5KE15CA

Taiwan Semiconductor CorporationIn Stock: 352261.5KE15CA Datasheet

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1.5KE15CA

Taiwan Semiconductor CorporationIn Stock: 352261.5KE15CA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ICT-12C are identified based on electrical compatibility within the transient voltage suppression category. The substitution logic is based on the following key parameters:

Electrical Compatibility Criteria:

• Bidirectional Zener TVS diode type
• Reverse standoff voltage within the 12V to 12.8V range
• Peak pulse current capability of 70A or greater
• Peak pulse power rating of 1500W (1.5kW)
• Breakdown voltage minimum between 14.1V and 14.3V
• Clamping voltage performance suitable for general-purpose transient protection

Mechanical Compatibility Criteria:

• Through-hole mounting configuration
• Package form factor compatible with DO-13 or equivalent axial lead spacing

The substitute part 1.5KE15CA from Taiwan Semiconductor Corporation meets these electrical parameters with equivalent or superior performance characteristics while maintaining the same power dissipation capability and peak pulse current rating.

Parameter Comparison

Engineering Selection Recommendations

Primary Part: ICT-12C

The ICT-12C remains the preferred selection when the original Microchip Technology specification is required and RoHS non-compliant components are acceptable for the application. This part is actively manufactured and maintains full inventory availability.

Substitute Part: 1.5KE15CA

The 1.5KE15CA from Taiwan Semiconductor Corporation is electrically compatible for transient voltage suppression applications requiring equivalent or superior performance. This substitute offers the following advantages:

• Higher peak pulse current capability (74A versus 70A)
• Equivalent peak pulse power rating (1500W)
• ROHS3 compliance, suitable for applications with RoHS requirements
• Active production status with substantial inventory availability (35200 units)

Package Consideration:

The 1.5KE15CA is available in DO-201AA, DO-27, and axial package configurations. Physical board layout and PCB footprint compatibility must be verified before substitution, as the DO-201 package differs mechanically from the DO-13 package of the ICT-12C.

Temperature Range Consideration:

The ICT-12C operates across -65°C to 175°C, while the 1.5KE15CA operates across -55°C to 175°C. Applications requiring operation below -55°C junction temperature require the ICT-12C.

Frequently Asked Questions (FAQ)

Q: Can the 1.5KE15CA directly replace the ICT-12C in all applications?

A: Electrical substitution is valid based on reverse standoff voltage, breakdown voltage, peak pulse current, and power dissipation parameters. Physical package compatibility must be verified independently, as the DO-201 package differs from DO-13. Applications requiring operation below -55°C junction temperature require the ICT-12C.

Q: What are the key electrical parameters that determine substitution compatibility?

A: Substitution compatibility is determined by: bidirectional Zener TVS diode type, reverse standoff voltage range (12V to 12.8V), peak pulse current capability (70A or greater), peak pulse power rating (1500W), and breakdown voltage minimum (14.1V to 14.3V).

Q: Does the higher clamping voltage of the 1.5KE15CA (21.2V versus 17.1V) affect compatibility?

A: The 1.5KE15CA clamping voltage is higher, which may affect circuit protection characteristics. Applications with strict clamping voltage requirements should retain the ICT-12C specification.

Q: What is the impact of RoHS compliance differences?

A: The ICT-12C is RoHS non-compliant, while the 1.5KE15CA is ROHS3 compliant. Applications subject to RoHS regulations or customer requirements for compliant components should use the 1.5KE15CA.

Q: Are both parts suitable for general-purpose transient protection?

A: Both parts are rated for general-purpose transient voltage suppression applications and share the same 1500W peak pulse power rating and equivalent peak pulse current capability.

Q: What inventory considerations apply to these parts?

A: The ICT-12C has 1078 units in stock, while the 1.5KE15CA has 35200 units in stock. The 1.5KE15CA offers significantly higher inventory availability.