ACPDT-24V Equivalent & Substitute Parts

Part Overview

The ACPDT-24V is a bidirectional Transient Voltage Suppressor (TVS) diode manufactured by Comchip Technology, designed for surface mount applications in the SOT-23-3 package. This automotive-grade component operates with a 24V reverse standoff voltage and provides 47V clamping protection at peak pulse current. The part is Active status and ROHS3 compliant, making it suitable for transient protection in automotive and general-purpose electronic circuits. Substitute parts are identified to provide equivalent electrical performance and mechanical compatibility for procurement flexibility and supply chain continuity.

Substiute Parts

ACPDT-24V

Comchip TechnologyIn Stock: 1568ACPDT-24V Datasheet

Current PartRFQ

CPDT-24V

Comchip TechnologyIn Stock: 46390CPDT-24V Datasheet

DirectRFQ

CPDT-24V-HF

Comchip TechnologyIn Stock: 696339CPDT-24V-HF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ACPDT-24V are qualified based on strict electrical and mechanical parameter equivalence. The following parameters determine substitution eligibility:

Critical Electrical Parameters:

• Voltage - Reverse Standoff (Typ): 24V
• Voltage - Breakdown (Min): 25V
• Voltage - Clamping (Max) @ Ipp: 47V
• Current - Peak Pulse (10/1000µs): 1A (8/20µs)
• Power - Peak Pulse: 47W
• Bidirectional Channels: 2
• Type: Zener

Critical Mechanical Parameters:

• Package / Case: TO-236-3, SC-59, SOT-23-3
• Mounting Type: Surface Mount
• Supplier Device Package: SOT-23-3

Compliance Parameters:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

All substitute parts listed maintain identical electrical specifications and package compatibility with the ACPDT-24V, ensuring direct functional equivalence in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

All three parts—ACPDT-24V, CPDT-24V, and CPDT-24V-HF—are Active status components manufactured by Comchip Technology with identical electrical and mechanical specifications. Each part is ROHS3 compliant and carries MSL 1 (Unlimited) moisture sensitivity rating, ensuring equivalent reliability and regulatory compliance.

The ACPDT-24V carries automotive-grade qualification (AEC-Q101), designating it for automotive applications. The CPDT-24V and CPDT-24V-HF are specified for general-purpose applications but maintain the same electrical performance and package compatibility.

Selection between these parts should be based on application requirements: automotive-grade certification is required for ACPDT-24V; general-purpose applications may use CPDT-24V or CPDT-24V-HF. Inventory availability and procurement lead times are additional factors in part selection, as CPDT-24V-HF maintains significantly higher stock levels (696,254 pcs) compared to ACPDT-24V (1,517 pcs) and CPDT-24V (46,313 pcs).

Frequently Asked Questions (FAQ)

Q: Can CPDT-24V be used as a direct substitute for ACPDT-24V in automotive applications?

A: CPDT-24V maintains identical electrical specifications and package compatibility with ACPDT-24V. However, ACPDT-24V carries automotive-grade qualification (AEC-Q101), while CPDT-24V is specified for general-purpose applications. Application requirements and automotive qualification mandates determine substitution eligibility.

Q: What is the difference between CPDT-24V and CPDT-24V-HF?

A: Both parts share identical electrical parameters, voltage ratings, current specifications, and SOT-23-3 package configuration. The "-HF" designation indicates a variant within the same electrical family. No electrical or mechanical differences are specified in the provided parameters.

Q: Are all three parts pin-compatible?

A: Yes. ACPDT-24V, CPDT-24V, and CPDT-24V-HF all use the SOT-23-3 package (TO-236-3, SC-59), ensuring identical pinout and PCB footprint compatibility for direct substitution.

Q: Do these parts require different handling or storage procedures?

A: All three parts carry MSL 1 (Unlimited) moisture sensitivity rating, indicating no moisture sensitivity restrictions. Storage and handling procedures are equivalent across all three parts.

Q: What compliance standards apply to these TVS diodes?

A: All parts are ROHS3 compliant and REACH unaffected. ACPDT-24V additionally carries AEC-Q101 automotive qualification. All parts are classified under ECCN EAR99 and HTSUS 8541.10.0080.