P1602AA Equivalent & Substitute Parts

Part Overview

The P1602AA is a Transient Voltage Suppressor (TVS) thyristor manufactured by Littelfuse Inc. under the SIDACtor® series. This component is designed for overvoltage protection applications requiring 65V/130V off-state voltage rating with 150A peak pulse current capability in a 3-SIP through-hole package. The P1602AA is currently classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations.

Substiute Parts

P1602AA

Littelfuse Inc.In Stock: 950P1602AA Datasheet

Current PartRFQ

P1602AAL

Littelfuse Inc.In Stock: 821P1602AAL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P1602AA is determined by strict equivalence across all electrical and mechanical parameters. The primary substitute, P1602AAL, maintains identical specifications for voltage ratings (breakover and off-state), current ratings (peak pulse and hold current), element count, capacitance values, and physical package configuration. Both parts are manufactured by Littelfuse Inc. within the SIDACtor® series and share the same 3-SIP through-hole package with TO-220 Modified supplier designation.

The key parameters governing substitution are:

• Voltage - Breakover: 95V, 190V
• Voltage - Off State: 65V, 130V
• Voltage - On State: 4 V
• Current - Peak Pulse (8/20µs): 150 A
• Current - Peak Pulse (10/1000µs): 45 A
• Current - Hold (Ih): 150 mA
• Number of Elements: 2
• Package / Case: 3-SIP
• Mounting Type: Through Hole

Parameter Comparison

Engineering Selection Recommendations

The P1602AAL is the direct substitute for the obsolete P1602AA. Both components are electrically and mechanically identical across all specified parameters. The primary distinction is product status and regulatory compliance: P1602AAL is actively manufactured and ROHS3 compliant, whereas P1602AA is obsolete and RoHS non-compliant. For new designs and ongoing system support, P1602AAL is the appropriate selection. Both parts maintain identical moisture sensitivity classification (MSL 1 - Unlimited) and ECCN/HTSUS designations, ensuring consistent handling and regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can P1602AAL directly replace P1602AA in existing designs? A: Yes. P1602AAL is electrically and mechanically equivalent to P1602AA across all specified parameters, including voltage ratings, current ratings, element count, capacitance, and package configuration. Direct substitution is supported without circuit modification.

Q: What is the primary reason to transition from P1602AA to P1602AAL? A: P1602AA is classified as obsolete. P1602AAL is the active equivalent part, ensuring continued availability and supply chain reliability. Additionally, P1602AAL is ROHS3 compliant, meeting current regulatory requirements.

Q: Are the package dimensions identical between P1602AA and P1602AAL? A: Yes. Both parts use the 3-SIP through-hole package with TO-220 Modified supplier designation, ensuring identical PCB footprint and mounting compatibility.

Q: Do both parts have the same moisture sensitivity requirements? A: Yes. Both P1602AA and P1602AAL are classified as MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Are there any electrical performance differences between the two parts? A: No. Both parts are specified identically for breakover voltage (95V, 190V), off-state voltage (65V, 130V), on-state voltage (4 V), peak pulse current (150 A at 8/20µs), hold current (150 mA), and capacitance (35pF, 60pF).