ICT-36C Equivalent & Substitute Parts

Part Overview

The ICT-36C is a bidirectional transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection applications. This through-hole component operates with a 36V reverse standoff voltage and provides 1500W peak pulse power dissipation in a DO-13 package. The part maintains active product status with 1051 units in current inventory stock.

Substitute parts are identified to address packaging preferences, compliance requirements, or inventory availability while maintaining functional equivalence within the specified electrical parameters for TVS diode applications.

Substiute Parts

ICT-36C

Microchip TechnologyIn Stock: 1160ICT-36C Datasheet

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1.5KE36CA

Good-Ark SemiconductorIn Stock: 147641.5KE36CA Datasheet

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1.5KE36CA

Good-Ark SemiconductorIn Stock: 147641.5KE36CA Datasheet

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1.5KE39CA

Taiwan Semiconductor CorporationIn Stock: 201781.5KE39CA Datasheet

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1.5KE43CA

Taiwan Semiconductor CorporationIn Stock: 203111.5KE43CA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ICT-36C are qualified based on the following electrical and mechanical criteria:

Primary Substitution Criteria:

• Voltage - Reverse Standoff (Typ): 30.8V to 36.8V
• Voltage - Clamping (Max) @ Ipp: 49.9V to 59.3V
• Current - Peak Pulse (10/1000µs): 23A to 30.1A
• Power - Peak Pulse: 1500W (constant across all parts)
• Type: Zener, Bidirectional
• Mounting Type: Through Hole
• Applications: General Purpose

Package Considerations: Substitute parts utilize DO-201AE or DO-201 axial packages, which differ from the original DO-13 package. These alternatives maintain through-hole mounting compatibility while offering different form factors suitable for various PCB layouts.

Compliance Status: Substitute parts are ROHS3 compliant, whereas the ICT-36C is RoHS non-compliant. All parts maintain REACH Unaffected and EAR99 ECCN classifications.

Parameter Comparison

Engineering Selection Recommendations

1.5KE36CA (Good-Ark Semiconductor)

This substitute provides the closest reverse standoff voltage match at 30.8V with a clamping voltage of 49.9V. The part delivers higher peak pulse current capability (30.1A) compared to the ICT-36C (23A) while maintaining identical 1500W power dissipation. The DO-201AE axial package requires PCB layout modification from the original DO-13 configuration. This part achieves ROHS3 compliance and supports the full operating temperature range of -55°C to 175°C. Inventory availability is substantial at 14,729 units.

1.5KE39CA (Taiwan Semiconductor Corporation)

This substitute operates with a 33.3V reverse standoff voltage and 53.9V clamping voltage, positioning it between the ICT-36C and 1.5KE43CA specifications. Peak pulse current is rated at 29A. The DO-201 axial package format differs from the original. Operating temperature range is -55°C to 150°C, which is narrower than the ICT-36C at the lower end. ROHS3 compliance is achieved. Inventory availability is 20,100 units.

1.5KE43CA (Taiwan Semiconductor Corporation)

This substitute provides the highest reverse standoff voltage at 36.8V with a clamping voltage of 59.3V. Peak pulse current is 26A. The DO-201 axial package requires layout modification. Operating temperature range extends to -55°C to 175°C, matching the upper limit of the ICT-36C. ROHS3 compliance is achieved. Inventory availability is 20,300 units.

Compliance Consideration:

All substitute parts are ROHS3 compliant, whereas the ICT-36C is RoHS non-compliant. Selection of a substitute part addresses regulatory compliance requirements for new designs or manufacturing transitions.

Frequently Asked Questions (FAQ)

Q: Can the 1.5KE36CA directly replace the ICT-36C in existing PCB designs?

A: The 1.5KE36CA maintains electrical compatibility within the specified TVS diode parameters but uses a DO-201AE axial package instead of the DO-13 package. PCB footprint modification is required. Through-hole mounting compatibility is preserved.

Q: What is the primary difference between the three substitute options?

A: The three substitutes differ in reverse standoff voltage and clamping voltage specifications. The 1.5KE36CA operates at 30.8V standoff, the 1.5KE39CA at 33.3V standoff, and the 1.5KE43CA at 36.8V standoff. Selection depends on the specific voltage protection threshold required for the application.

Q: Are all substitute parts RoHS compliant?

A: Yes. All three substitute parts (1.5KE36CA, 1.5KE39CA, and 1.5KE43CA) are ROHS3 compliant. The original ICT-36C is RoHS non-compliant.

Q: Does the axial package format affect electrical performance?

A: No. The axial package format (DO-201AE or DO-201) does not alter the electrical characteristics of the TVS diode. Package selection is determined by PCB layout requirements and mechanical constraints.

Q: Which substitute part has the highest current-handling capability?

A: The 1.5KE36CA (Good-Ark Semiconductor) provides the highest peak pulse current rating at 30.1A, compared to 23A for the ICT-36C.

Q: What is the operating temperature range difference between the ICT-36C and substitute parts?

A: The ICT-36C operates from -65°C to 175°C. The 1.5KE36CA and 1.5KE43CA operate from -55°C to 175°C. The 1.5KE39CA operates from -55°C to 150°C, which is the most restricted range.

Q: Can I use the 1.5KE43CA if my circuit requires a 36V protection threshold?

A: The 1.5KE43CA has a reverse standoff voltage of 36.8V, which is slightly higher than the ICT-36C at 36V. This part is suitable for applications where the protection threshold can accommodate the 0.8V difference.

Q: Are all parts suitable for general-purpose overvoltage protection?

A: Yes. All parts, including the ICT-36C and the three substitutes, are classified for general-purpose applications and are not designated for power line protection.