ICT-10 Equivalent & Substitute Parts

Part Overview

The ICT-10 is an active Transient Voltage Suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose transient voltage protection applications. This unidirectional zener diode operates in the 10V reverse standoff voltage class and delivers peak pulse current handling of 90A with 1500W peak pulse power dissipation. The device is packaged in a through-hole DO-13 configuration and operates across an extended temperature range of -65°C to 175°C.

Equivalent and substitute parts are identified to address inventory availability, packaging preferences, compliance requirements, or regional sourcing needs while maintaining functional compatibility within the specified electrical and mechanical parameters.

Substiute Parts

ICT-10

Microchip TechnologyIn Stock: 1159ICT-10 Datasheet

Current PartRFQ

1.5KE12A

Taiwan Semiconductor CorporationIn Stock: 304871.5KE12A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ICT-10 are identified based on the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Voltage - Reverse Standoff (Typ): 10V nominal class
• Voltage - Breakdown (Min): Within acceptable range for 10V class devices
• Voltage - Clamping (Max) @ Ipp: Clamping voltage performance at rated peak pulse current
• Current - Peak Pulse (10/1000µs): Minimum 90A capability
• Power - Peak Pulse: 1500W (1.5kW) rating
• Type: Zener diode, unidirectional configuration

Mechanical Compatibility Criteria:

• Mounting Type: Through Hole
• Unidirectional Channels: 1 channel
• Operating Temperature Range: Minimum -55°C to 175°C (TJ)

Functional Classification:

• Category: Transient Voltage Suppressors (TVS)
• Applications: General Purpose
• Product Status: Active

The 1.5KE12A from Taiwan Semiconductor Corporation qualifies as a substitute based on matching electrical performance within the 10V standoff voltage class, equivalent peak pulse power rating, compatible through-hole mounting, and active product status.

Parameter Comparison

Engineering Selection Recommendations

ICT-10 (Microchip Technology):

• Primary selection for applications requiring RoHS non-compliant component acceptance
• Extended lower temperature operating limit (-65°C) for cryogenic or aerospace applications
• DO-13 package footprint when board layout constraints require compact axial lead configuration
• Lower clamping voltage (14.1V) provides tighter transient suppression

1.5KE12A (Taiwan Semiconductor Corporation):

• Primary selection for RoHS3 compliance requirements in consumer and industrial applications
• Equivalent peak pulse power and current handling with slightly higher peak pulse current (94A)
• DO-201 package option provides alternative through-hole footprint compatibility
• Higher clamping voltage (16.7V) suitable for applications with relaxed clamping requirements
• Bulk inventory availability (30,400 pcs) supports high-volume production schedules

Both devices maintain active product status and are suitable for general-purpose transient voltage suppression. Selection between ICT-10 and 1.5KE12A depends on compliance certification requirements, package footprint constraints, and thermal operating range specifications for the target application.

Frequently Asked Questions (FAQ)

Q: Can the 1.5KE12A directly replace the ICT-10 in existing circuit designs?

A: The 1.5KE12A is electrically compatible as a substitute within the 10V standoff voltage class. Both devices deliver 1500W peak pulse power and handle peak pulse currents exceeding 90A. However, the higher clamping voltage of the 1.5KE12A (16.7V versus 14.1V) results in higher transient voltage peaks at the protected node. Circuit designs with tight voltage margin specifications must account for this 2.6V difference. Package footprint differences (DO-13 versus DO-201) require PCB layout verification.

Q: What are the key electrical differences between these devices?

A: The primary electrical differences are clamping voltage and operating temperature range. The ICT-10 clamps at 14.1V maximum, while the 1.5KE12A clamps at 16.7V. The ICT-10 operates from -65°C to 175°C, whereas the 1.5KE12A operates from -55°C to 175°C. Both devices share identical reverse standoff voltage (10V nominal class), equivalent peak pulse power (1500W), and comparable peak pulse current ratings (90A and 94A respectively).

Q: Are there package compatibility considerations?

A: Yes. The ICT-10 uses a DO-13 package with axial leads, while the 1.5KE12A is available in DO-201AA, DO-27, or Axial configurations. DO-13 and DO-201 packages have different lead spacing and body dimensions. PCB footprint verification is required before substitution. Both are through-hole mounted devices suitable for wave soldering and manual assembly.

Q: Which device should be selected for low-temperature applications?

A: The ICT-10 is specified for operation down to -65°C (TJ), compared to the 1.5KE12A minimum of -55°C (TJ). For applications requiring operation below -55°C, the ICT-10 is the appropriate selection.

Q: What compliance differences exist between these parts?

A: The ICT-10 is RoHS non-compliant, while the 1.5KE12A is RoHS3 compliant. Both devices are REACH unaffected and classified under ECCN EAR99. For applications subject to RoHS compliance mandates, the 1.5KE12A is the required selection.

Q: How do the clamping voltage differences affect circuit protection?

A: Clamping voltage determines the maximum voltage transient that appears across the protected circuit node. The ICT-10's lower clamping voltage (14.1V) provides tighter suppression, limiting transient peaks to lower levels. The 1.5KE12A's higher clamping voltage (16.7V) allows higher transient peaks. Circuit designs must verify that protected components tolerate the clamping voltage of the selected device.