ESDLC3V3LB-TP Equivalent & Substitute Parts

Part Overview

The ESDLC3V3LB-TP is a Transient Voltage Suppressor (TVS) diode manufactured by Micro Commercial Co, designed for general-purpose ESD and transient protection applications. This bidirectional Zener diode operates with a 3.3V reverse standoff voltage and provides 11V clamping protection in a compact 0402 (1006 Metric) surface mount package. The part is currently in active production status with substantial inventory availability. Equivalent and substitute parts are identified to support design flexibility, supply chain continuity, and application-specific packaging or performance requirements.

Substiute Parts

ESDLC3V3LB-TP

Micro Commercial CoIn Stock: 350248ESDLC3V3LB-TP Datasheet

Current PartRFQ

ESD9C3.3ST5G

onsemiIn Stock: 16975ESD9C3.3ST5G Datasheet

DirectRFQ

ESD9B3.3ST5G

onsemiIn Stock: 205256ESD9B3.3ST5G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ESDLC3V3LB-TP is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): 3.3V (Max) — substitute parts must maintain this specification
• Voltage - Breakdown (Min): 4.3V minimum — substitute parts must meet or exceed this threshold
• Voltage - Clamping (Max) @ Ipp: 11V nominal — substitute parts must provide equivalent or superior clamping performance
• Type: Zener diode — substitute parts must be Zener-type TVS diodes
• Bidirectional Channels: 1 channel — substitute parts must maintain single-channel configuration
• Mounting Type: Surface Mount — substitute parts must be surface mount compatible
• RoHS Status: ROHS3 Compliant — substitute parts must maintain compliance

Two substitute parts meet these criteria with allowable variations in package form factor and operating temperature range:

ESD9C3.3ST5G (onsemi) — Direct substitute with SOD-923 package, unidirectional configuration, extended temperature range to 150°C, and AEC-Q101 automotive qualification.

ESD9B3.3ST5G (onsemi) — Similar substitute with SOD-923 package, bidirectional configuration matching the main part, 11.5V clamping voltage, 2A peak pulse current specification, and extended temperature range to 150°C.

Parameter Comparison

Engineering Selection Recommendations

ESD9B3.3ST5G is the preferred substitute when package form factor change is acceptable. This part maintains bidirectional channel configuration identical to the main part, provides equivalent 11.5V clamping voltage performance, and extends operating temperature range to 150°C. All parts share ROHS3 compliance and active production status.

ESD9C3.3ST5G is suitable for applications requiring automotive-grade qualification (AEC-Q101). This part operates with unidirectional channel configuration and extended temperature range to 150°C. Selection of this part requires confirmation that unidirectional protection meets application requirements.

Package transition from 0402 (1006 Metric) to SOD-923 requires PCB layout and assembly process evaluation. Both substitute parts maintain surface mount mounting type and ROHS3 compliance status.

Frequently Asked Questions (FAQ)

Q: Can ESD9B3.3ST5G replace ESDLC3V3LB-TP directly?

A: ESD9B3.3ST5G meets all critical electrical parameters: 3.3V reverse standoff voltage, 5V minimum breakdown voltage, and 11.5V clamping voltage. The primary difference is package form factor (SOD-923 versus 0402/1006 Metric). PCB layout and assembly compatibility must be evaluated before implementation.

Q: What is the difference between ESD9C3.3ST5G and ESD9B3.3ST5G?

A: ESD9C3.3ST5G operates with unidirectional channel configuration, while ESD9B3.3ST5G maintains bidirectional configuration matching the main part. ESD9C3.3ST5G includes AEC-Q101 automotive qualification. Both provide 3.3V reverse standoff voltage and extended temperature operation to 150°C.

Q: Are all three parts RoHS compliant?

A: Yes. ESDLC3V3LB-TP, ESD9C3.3ST5G, and ESD9B3.3ST5G are all ROHS3 compliant.

Q: What is the impact of higher capacitance in substitute parts?

A: ESD9B3.3ST5G and ESD9C3.3ST5G exhibit higher capacitance (15pF and 12.8pF respectively) compared to the main part (2.6pF @ 1MHz). Capacitance impact on circuit performance depends on application frequency and signal integrity requirements. High-frequency applications may require detailed circuit analysis.

Q: Can I use these parts interchangeably in production?

A: Substitution requires validation of package compatibility with existing PCB layouts and assembly processes. Electrical parameters are compatible; however, package form factor differences necessitate design review and potential process qualification before production implementation.