SD05-TP Equivalent & Substitute Parts

Part Overview

The SD05-TP is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Micro Commercial Co, designed for general-purpose transient protection applications. This surface-mount component operates across an industrial temperature range of -55°C to 150°C and is currently in active production status. The SD05-TP is specified with a 5V reverse standoff voltage, 12.5V maximum clamping voltage, and 40A peak pulse current capability (8/20µs), making it suitable for protecting sensitive circuits from voltage transients. Equivalent and substitute parts are identified based on matching electrical performance parameters, package compatibility, and compliance certifications.

Substiute Parts

SD05-TP

Micro Commercial CoIn Stock: 3623SD05-TP Datasheet

Current PartRFQ

SD05T1G

onsemiIn Stock: 95480SD05T1G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SD05-TP are identified based on the following critical electrical and mechanical parameters:

Matching Criteria:

• Unidirectional Zener TVS diode type with single channel configuration
• Reverse standoff voltage of 5V
• Breakdown voltage minimum of 6V or higher
• SOD-323 package compatibility (SC-76)
• Surface-mount technology
• Operating temperature range of -55°C to 150°C
• RoHS3 compliance and MSL Level 1 rating

Allowable Variations:

• Clamping voltage: Substitute parts may have lower clamping voltage (9.8V acceptable versus 12.5V specification)
• Peak pulse current: Substitute parts may have reduced current rating (24A acceptable versus 40A specification)
• Peak pulse power: Substitute parts may have reduced power rating (350W acceptable versus 500W specification)

These variations remain within acceptable substitution parameters for general-purpose transient protection applications where the primary circuit protection requirement is voltage clamping at the specified standoff voltage.

Parameter Comparison

Engineering Selection Recommendations

Both the SD05-TP and SD05T1G are active-status products with identical RoHS3 compliance and MSL Level 1 ratings, ensuring equivalent environmental and regulatory compliance. The SD05T1G from onsemi functions as a substitute with the following considerations based on provided specifications:

The SD05T1G maintains the critical 5V reverse standoff voltage and SOD-323 package compatibility required for direct board-level substitution. The lower clamping voltage (9.8V versus 12.5V) and reduced peak pulse current (24A versus 40A) represent the primary electrical differences. Selection between these parts depends on circuit-specific transient energy requirements and the maximum allowable clamping voltage for protected components.

Both parts operate across the full -55°C to 150°C temperature range and maintain identical capacitance characteristics at 1MHz, supporting equivalent performance in high-frequency transient suppression applications.

Frequently Asked Questions (FAQ)

Q: Can SD05T1G replace SD05-TP in all applications?

A: The SD05T1G is electrically compatible for applications where the 9.8V clamping voltage and 24A peak pulse current meet circuit protection requirements. Applications requiring the full 12.5V clamping voltage or 40A current capability must use the SD05-TP or equivalent higher-rated alternatives.

Q: Are the packages identical between SD05-TP and SD05T1G?

A: Both parts use the SOD-323 package (SC-76), enabling direct board-level substitution without PCB layout modifications.

Q: What is the significance of the 5V reverse standoff voltage?

A: The 5V reverse standoff voltage defines the maximum voltage the diode can withstand without conducting. This parameter must match between the main part and substitute to ensure proper circuit protection operation.

Q: Do both parts meet the same compliance standards?

A: Both SD05-TP and SD05T1G are RoHS3 compliant with MSL Level 1 rating and REACH unaffected status, meeting identical environmental and regulatory requirements.

Q: What is the difference between clamping voltage and breakdown voltage?

A: Breakdown voltage (minimum 6V for both parts) is the threshold at which the diode begins conducting. Clamping voltage (12.5V for SD05-TP, 9.8V for SD05T1G) is the maximum voltage across the diode during peak pulse current, representing the actual protection level provided to the circuit.

Q: Can these parts be used interchangeably in automotive applications?

A: The SD05T1G carries an automotive grade designation. Application-specific requirements and qualification standards must be evaluated for automotive use cases.