L35L3V3CB2 Equivalent & Substitute Parts

Part Overview

The L35L3V3CB2 is a bidirectional Transient Voltage Suppressor (TVS) diode manufactured by Diodes Incorporated, designed for transient protection in USB applications. This component features an 18.5V clamping voltage with 19A peak pulse current capability in a surface mount SOD-323 package. The part is currently in Last Time Buy status, making identification of suitable substitute components essential for ongoing design support and procurement planning.

Substiute Parts

L35L3V3CB2

Diodes IncorporatedIn Stock: 861L35L3V3CB2 Datasheet

Current PartRFQ

DBLC03CI-7

Diodes IncorporatedIn Stock: 973DBLC03CI-7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the L35L3V3CB2 is determined by electrical and mechanical parameter equivalence within the TVS diode category. The critical parameters governing substitution are:

• Voltage - Reverse Standoff (Typ): 3.3V (Max)
• Voltage - Breakdown (Min): 4V
• Voltage - Clamping (Max) @ Ipp: 18.5V
• Current - Peak Pulse (8/20µs): 19A
• Power - Peak Pulse: 350W
• Package / Case: SOD-323
• Operating Temperature Range: -55°C to 125°C (TJ)

The DBLC03CI-7 meets all critical electrical parameters and package requirements. While the DBLC03CI-7 features a single bidirectional channel compared to the L35L3V3CB2's two channels, it maintains identical voltage clamping, breakdown, and peak pulse current specifications. Both components are manufactured by Diodes Incorporated and share the same SOD-323 package footprint.

Parameter Comparison

Engineering Selection Recommendations

The DBLC03CI-7 is the qualified substitute for the L35L3V3CB2. Both components are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The DBLC03CI-7 maintains active product status, ensuring continued availability and supply chain stability compared to the L35L3V3CB2's Last Time Buy designation.

The primary design consideration is the channel configuration difference: the L35L3V3CB2 provides two bidirectional channels while the DBLC03CI-7 provides one. Circuit topology and protection requirements must accommodate this difference. Both components are identical in electrical performance across all voltage and current parameters, thermal operating range, and package footprint.

Frequently Asked Questions (FAQ)

Q: Can the DBLC03CI-7 directly replace the L35L3V3CB2 in existing designs?

A: Electrical substitution is valid when circuit protection requirements align with single-channel operation. The DBLC03CI-7 delivers identical clamping voltage (18.5V), breakdown voltage (4V), and peak pulse current (19A) specifications. PCB footprint compatibility is confirmed through identical SOD-323 packaging. Circuit topology review is necessary to confirm single-channel protection meets application requirements.

Q: What is the significance of the bidirectional channel difference?

A: The L35L3V3CB2 integrates two independent bidirectional protection channels in a single package, while the DBLC03CI-7 provides one bidirectional channel. This affects circuit design and component placement strategy. Applications requiring dual-line protection may require alternative component selection or circuit redesign.

Q: Are there compliance or certification differences between these parts?

A: Both components share identical RoHS3 compliance and REACH unaffected status. Moisture sensitivity level is equivalent at MSL 1 (Unlimited). No compliance barriers exist for substitution from a regulatory standpoint.

Q: Why is the L35L3V3CB2 in Last Time Buy status?

A: Last Time Buy status indicates the manufacturer is discontinuing this product line. The DBLC03CI-7, with active product status, represents the manufacturer's current offering for equivalent TVS protection in this voltage and current class.

Q: Are package dimensions identical between L35L3V3CB2 and DBLC03CI-7?

A: Both components use the SC-76, SOD-323 package specification. PCB footprint and reflow soldering parameters are compatible.