CTDS0624V-G Equivalent & Substitute Parts

Part Overview

The CTDS0624V-G is a bidirectional transient voltage suppressor (TVS) diode manufactured by Comchip Technology, designed for general-purpose overvoltage protection applications. This component features a 24V reverse standoff voltage with a 43V maximum clamping voltage and 5A peak pulse current rating in a surface-mount SOT-23-6 package. The product is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

CTDS0624V-G

Comchip TechnologyIn Stock: 912CTDS0624V-G Datasheet

Current PartRFQ

PESD1206Q-240

LittelfuseIn Stock: 2525PESD1206Q-240 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CTDS0624V-G is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Bidirectional channel configuration: 4 channels
• Reverse standoff voltage: 24V (nominal)
• Voltage clamping performance: maximum 43V to 45V range
• Zener diode type classification
• Operating temperature range: -55°C to 125°C

Mechanical Compatibility Criteria:

• Surface-mount package technology
• Moisture sensitivity level: MSL 1 (Unlimited)
• Regulatory compliance: REACH Unaffected, ECCN EAR99

The PESD1206Q-240 qualifies as a manufacturer-recommended substitute based on matching electrical specifications (24V reverse standoff, 4-channel bidirectional configuration, comparable clamping voltage of 45V) and regulatory compliance status. The primary distinction is the package format change from SOT-23-6 to 1206 (3216 Metric), which requires PCB layout modification but maintains functional equivalence for the specified application.

Parameter Comparison

Engineering Selection Recommendations

The PESD1206Q-240 is the manufacturer-recommended substitute for the obsolete CTDS0624V-G. Selection of this alternative is supported by the following factors:

Product Status: The PESD1206Q-240 maintains active product status with Littelfuse, ensuring continued availability and manufacturing support. The CTDS0624V-G obsolescence status necessitates transition to an actively produced equivalent.

Regulatory Compliance: Both components share identical regulatory classifications (REACH Unaffected, ECCN EAR99), confirming compliance equivalence for export and supply chain requirements.

Electrical Performance: The PESD1206Q-240 delivers equivalent electrical protection with a 45V maximum clamping voltage compared to the 43V specification of the CTDS0624V-G. This 2V differential remains within acceptable tolerance for general-purpose transient suppression applications while maintaining the critical 24V reverse standoff voltage specification.

Package Transition: Implementation of the PESD1206Q-240 requires PCB layout modification due to the package change from SOT-23-6 to 1206 (3216 Metric). This transition is a mechanical consideration only and does not affect electrical functionality or thermal performance within the specified operating temperature range of -55°C to 125°C.

Frequently Asked Questions (FAQ)

Q: Can the PESD1206Q-240 directly replace the CTDS0624V-G without PCB modification?

A: No. The PESD1206Q-240 uses a 1206 (3216 Metric) package format, while the CTDS0624V-G uses SOT-23-6. PCB footprint redesign is required. Both components are surface-mount devices with identical MSL ratings, but the physical dimensions and pad layouts differ.

Q: Are the electrical specifications compatible between these two parts?

A: Yes. Both components are 4-channel bidirectional TVS diodes with 24V reverse standoff voltage and comparable clamping voltage performance (43V vs. 45V). Operating temperature ranges are identical at -55°C to 125°C. The 2V clamping voltage difference is within acceptable tolerance for general-purpose applications.

Q: What is the significance of the product status change from Obsolete to Active?

A: The PESD1206Q-240 active status ensures ongoing manufacturing, quality assurance, and supply chain availability. The CTDS0624V-G obsolescence status indicates discontinued production, making the substitute necessary for long-term system support and new design implementations.

Q: Are there any regulatory or compliance differences between these components?

A: No. Both components share identical regulatory classifications: REACH Unaffected, ECCN EAR99, and MSL 1 (Unlimited). Compliance requirements are equivalent.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is determined by: bidirectional channel count (4), reverse standoff voltage (24V), zener diode type, clamping voltage range (43V-45V), operating temperature range (-55°C to 125°C), surface-mount technology, and regulatory compliance status. Package format is a mechanical consideration that requires PCB redesign but does not affect electrical equivalence.