P3602AB Equivalent & Substitute Parts

Part Overview

The P3602AB is a Transient Voltage Suppressor (TVS) thyristor manufactured by Littelfuse, designed for overvoltage protection in electronic circuits. This component operates as a SIDACtor® device with dual-element configuration in a 3-SIP through-hole package. The P3602AB is classified as obsolete, making identification of compatible substitute parts essential for ongoing system maintenance and new design implementations where legacy component replacement is required.

Substiute Parts

P3602AB

LittelfuseIn Stock: 724P3602AB Datasheet

Current PartRFQ

P3602ABL

Littelfuse Inc.In Stock: 1155P3602ABL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P3602AB is determined by strict equivalence across electrical and mechanical parameters. The primary substitute, P3602ABL, maintains identical functional specifications including voltage ratings (170V/340V off-state, 220V/440V breakover), peak pulse current capacity (250 A at 8/20µs), on-state voltage (4 V), and hold current (150 mA). Both components feature dual-element configuration, identical capacitance values (50pF, 90pF), and the same 3-SIP through-hole package in TO-220 Modified form factor.

The key parameters determining substitution eligibility are:

• Voltage - Breakover: 220V, 440V
• Voltage - Off State: 170V, 340V
• Voltage - On State: 4 V
• Current - Peak Pulse (8/20µs): 250 A
• Current - Peak Pulse (10/1000µs): 80 A
• Current - Hold (Ih): 150 mA
• Number of Elements: 2
• Package / Case: 3-SIP
• Mounting Type: Through Hole

Parameter Comparison

Engineering Selection Recommendations

The P3602ABL is the direct functional equivalent of the P3602AB. Both components are manufactured by Littelfuse and share identical electrical and mechanical specifications. The primary distinction is product status: the P3602AB is obsolete while the P3602ABL maintains active production status, ensuring continued availability and supply chain reliability.

For new designs or system replacements, the P3602ABL is the appropriate selection. The P3602ABL additionally provides ROHS3 compliance, whereas the P3602AB is RoHS non-compliant. Both components maintain MSL 1 (Unlimited) moisture sensitivity rating, indicating no special storage or handling requirements.

Frequently Asked Questions (FAQ)

Q: Can P3602ABL directly replace P3602AB in existing circuits? A: Yes. The P3602ABL is electrically and mechanically identical to the P3602AB. All voltage ratings, current specifications, and package dimensions are equivalent. Direct substitution is supported without circuit modification.

Q: What is the difference between P3602AB and P3602ABL? A: The primary differences are product status and regulatory compliance. The P3602AB is obsolete, while P3602ABL is in active production. The P3602ABL meets ROHS3 compliance standards, whereas the P3602AB does not. Electrical and mechanical specifications are identical.

Q: Are there any package or mounting differences? A: No. Both components use the 3-SIP through-hole package in TO-220 Modified form factor. Mounting type, pin configuration, and PCB footprint are identical.

Q: Why is the P3602AB classified as obsolete? A: Littelfuse has transitioned production to the P3602ABL variant, which offers improved regulatory compliance (ROHS3) while maintaining identical functional specifications. The P3602ABL is the current production equivalent.

Q: What are the critical electrical parameters for substitution? A: Substitution requires matching voltage ratings (170V/340V off-state, 220V/440V breakover), peak pulse current (250 A at 8/20µs), on-state voltage (4 V), and hold current (150 mA). The P3602ABL meets all these requirements.

Q: Is MSL rating the same for both parts? A: Yes. Both P3602AB and P3602ABL carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage or handling.