July 15, 2025
311
In today's electronics landscape, robust transient voltage suppression is critical for protecting sensitive components in automotive, industrial, and telecom systems. The SM6T36A-E3/5B from Vishay's TransZorb® series delivers 600W peak pulse power in a compact SMB package, meeting the growing demand for high-reliability ESD protection. With AEC-Q101 qualification and a wide -65°C to +150°C operating range, this unidirectional TVS diode offers superior clamping performance for modern design challenges. Read on to explore its technical advantages and application insights.
The SM6T36A-E3/5B is a surface-mount TVS diode designed for suppressing transient voltage spikes in electronic circuits. Key attributes include:
Package: DO-214AA (SMB), ideal for automated PCB assembly
Protection Type: Unidirectional (polarity-sensitive)
Certifications: AEC-Q101 qualified for automotive applications
Environmental Compliance: RoHS and REACH compliant
| Parameter | Value | Standard |
|---|---|---|
| Working Voltage (VWM) | 30.8V | IEC 61000-4-5 |
| Breakdown Voltage (VBR) | 34.2V (min) | MIL-STD-750 |
| Clamping Voltage (VC) | 64.3V @ 62A | 8/20μs pulse |
| Peak Pulse Current (IPP) | 62A | 10/1000μs waveform |
| Operating Temperature | -65°C to +150°C | JESD22-A104 |
Source: Vishay SM6T Series Datasheet (Rev. 08/2022)
Follow this decision flowchart for optimal TVS diode selection:
Determine Circuit Voltage: Select VWM ≥ operating voltage (30.8V for SM6T36A)
Assess Threat Level: Ensure IPP (62A) exceeds expected surge currents
Check Physical Constraints: SMB package (3.6mm x 2.7mm) suits space-limited designs
Verify Environmental Needs: -65°C to +150°C range covers most harsh environments
Protects CAN bus lines (ISO 11898-2) against load dump surges up to 40V per LV 124.
Shields 24V PLC I/O modules from inductive kickback in relay circuits.
ESD protection for RJ45 ports (IEC 61000-4-2 Level 4 compliance).
The global TVS diode market is projected to grow at 6.8% CAGR (2023-2030, MarketsandMarkets), driven by:
Expanding EV charging infrastructure requiring robust surge protection
5G base stations needing high-reliability components
Increasing adoption of AEC-Q101 certified parts in automotive
| Model | VWM | IPP | Package | Key Differentiator |
|---|---|---|---|---|
| SM6T36A-E3/5B | 30.8V | 62A | SMB | AEC-Q101 qualified |
| P6KE36A | 30.8V | 25A | DO-204AC | Lower power (600W → 600W) |
| SMAJ36A | 30.8V | 33A | DO-214AC | Smaller form factor |
A: Yes, when properly coordinated with other protection devices. Its 600W rating handles induced surges per IEC 61000-4-5 (8/20μs).
A: Unidirectional (like SM6T36A) protects positive surges in polarized circuits; bidirectional (SM6T36CA) handles AC lines.
A: SMB offers 30% smaller footprint than SMC while maintaining similar thermal performance to SMA.
A: No - consider SM6T48A (48V VWM) for 48V mild hybrid systems (LV148 standard).
A: <1ns response to ESD events (per IEC 61000-4-2), making it effective for fast transients.
Emerging requirements are driving TVS diode evolution:
Higher Voltage: 800V+ TVS for EV battery management systems
Integrated Solutions: Combining TVS with EMI filters in single packages
Smart Protection: Current-limiting TVS with active monitoring
The SM6T36A-E3/5B delivers reliable overvoltage protection for demanding applications from automotive to industrial systems. With its industry-leading 600W dissipation in a compact SMB package and AEC-Q101 qualification, it addresses critical design challenges in modern electronics. For pricing and availability, contact our component specialists at [email protected].
