My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SM6T30AHE3_A/I
;;2.jpg)
- Part No.:
- SM6T30AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T30AHE3_A/I.pdf
- Description:
- TVS DIODE 25.6VWM 41.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,497
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SM6T30AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount TRANSZORB® transient voltage suppressor in SMB (DO-214AA) package, with 30 V breakdown voltage (VBR = 28.5–31.5 V at 1.0 mA), 25.6 V stand-off voltage (VWM), 41.5 V max clamping voltage (VC) at 14.5 A peak pulse current, and 600 W peak pulse power rating per 10/1000 μs waveform. It protects MOSFETs and ICs against inductive switching transients in automotive powertrain control modules.
For engineers reviewing the SM6T30AHE3_A/I datasheet, SM6T30AHE3_A/I pinout, SM6T30AHE3_A/I application, or SM6T30AHE3_A/I equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, SMB package mechanical data, clamping performance under standardized surge waveforms, and direct alternatives for automotive-grade TVS selection.
Technical Context
The SM6T30AHE3_A/I operates as a unidirectional avalanche diode with glass-passivated junction, optimized for fast response to transient overvoltages. Its 100 °C/W junction-to-ambient thermal resistance and 20 °C/W junction-to-lead resistance support reliable operation up to 150 °C junction temperature under pulsed conditions.
Designed for PCB-level ESD and surge protection, it delivers 41.5 V clamping at 14.5 A (10/1000 μs), with <1.0 μA reverse leakage at 25.6 V and 9.7 × 10−4/°C temperature coefficient of VBR. The device meets J-STD-020 MSL Level 1 and is qualified to AEC-Q101 for automotive applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 28.5 V / 31.5 V at 1.0 mA - defines precise avalanche onset range for predictable clamping threshold |
| VWM | 25.6 V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPPM | 41.5 V at 14.5 A (10/1000 μs) - actual voltage seen by protected circuit during worst-case surge |
| PPPM | 600 W - peak transient energy absorption capability under standardized lightning/surge waveform |
| IFSM | 100 A - single half-sine surge current rating (10 ms), critical for load-dump immunity in 12 V systems |
| TJ max | +150 °C - enables use in under-hood automotive environments without derating below ambient |
| AEC-Q101 | Qualified - validated for automotive reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode indicated by band on body end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to system ground or low-side reference in unidirectional clamp configuration |
| Cathode | Current exit terminal during reverse avalanche | Connected to protected line (e.g., 12 V rail); band-marked end ensures correct orientation |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables robust protection against ISO 7637-2 Pulse 1, 2a, and 5a transients in automotive ECUs |
| AEC-Q101 qualification | Validates long-term reliability under automotive thermal, mechanical, and electrical stress profiles |
| Glass-passivated junction | Ensures stable VBR and low leakage over lifetime, even in humid or high-vibration environments |
| MSL Level 1 (260 °C peak reflow) | Supports standard lead-free SMT assembly without moisture sensitivity concerns |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes overvoltage stress on downstream MOSFET gates and logic inputs during clamping |
Applications
| Automotive Powertrain Control | Industrial Motor Drive Inputs |
|---|---|
Use Scenario: Protection of MCU I/O and gate drivers against load dump and inductive kickback in engine control units. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 12 V supply rail and ground, clamping transients within 1 ns. Use Value: Limits voltage to ≤41.5 V during 14.5 A surges, preventing latch-up or oxide breakdown in 3.3 V/5 V logic interfaces. |
Use Scenario: Surge suppression on 24 V DC input lines feeding PLC digital input modules. IC Role / Device Role / Timing Role: Primary front-end transient suppressor mounted directly at connector entry point. Use Value: Absorbs 600 W pulses without degradation, maintaining signal integrity across 0–10 kHz control bandwidth. |
| Automotive Body Electronics | Telecom Power Supply Rails |
Use Scenario: Protecting LIN bus transceivers and LED driver ICs in door module assemblies. IC Role / Device Role / Timing Role: Localized clamping device adjacent to sensitive analog front-ends. Use Value: 1.0 μA leakage at 25.6 V prevents false triggering in low-current sensor bias networks. |
Use Scenario: Secondary overvoltage protection on +48 V telecom rectifier outputs feeding base station controllers. IC Role / Device Role / Timing Role: Standby clamping element in parallel with primary DC-DC converter output filter. Use Value: 150 °C max junction temperature allows uninterrupted operation during extended thermal stress events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ30A-E3/5B | Same VWM (25.6 V), but lower PPPM (400 W); SMA package (DO-214AC), larger RθJA (140 °C/W) | Limited to lower-energy transients; less suitable for ISO 16750-2 load dump testing | Select when cost sensitivity outweighs automotive surge margin requirements |
| 1.5SMC33A | Higher VBR (31.4–34.7 V), same SMB footprint, but not AEC-Q101 qualified; 600 W rating retained | Acceptable for industrial use only; lacks automotive qualification documentation and test traceability | Choose for non-automotive designs where AEC-Q101 is not mandated |
Compared with SMAJ30A-E3/5B and 1.5SMC33A, the SM6T30AHE3_A/I provides AEC-Q101 validation, tighter VBR tolerance (±5%), and superior thermal performance in SMB-making it the preferred choice for production automotive electronics requiring full compliance and long-term reliability.
Availability
SM6T30AHE3_A/I is available at Aetrix Electronics and suitable for automotive powertrain control, industrial motor drive inputs, automotive body electronics, and telecom power supply rails requiring stable component supply and AEC-Q101 assurance.
Supply support for SM6T30AHE3_A/I includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, and protection devices with emphasis on reliability and automotive-grade qualification.
The SM6T Series was developed specifically for high-reliability transient suppression in harsh environments, targeting automotive, industrial, and telecom applications demanding AEC-Q101 compliance and repeatable clamping performance.
FAQ
What is the clamping voltage of the SM6T30AHE3_A/I under a 10/1000 μs surge?
The SM6T30AHE3_A/I has a maximum clamping voltage (VC) of 41.5 V when subjected to a 10/1000 μs waveform at 14.5 A peak pulse current. This value is measured per JEDEC standards and reflects the actual voltage imposed on protected circuitry during standardized surge events. The SM6T30AHE3_A/I maintains this clamping performance across its full operating temperature range.
Is the SM6T30AHE3_A/I qualified for automotive applications?
Yes, the SM6T30AHE3_A/I is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3" and documentation in datasheet 88385. It undergoes rigorous stress testing-including temperature cycling, high-temperature reverse bias, and ESD-to meet automotive reliability requirements. The SM6T30AHE3_A/I is approved for use in engine control units, body control modules, and other safety-critical vehicle subsystems.
What is the package type and mounting specification for SM6T30AHE3_A/I?
The SM6T30AHE3_A/I uses the SMB (DO-214AA) surface-mount package with matte tin-plated leads compliant with J-STD-002. It is rated MSL Level 1 and supports peak reflow temperatures up to 260 °C. Recommended pad layout is 0.2" × 0.2" (5.0 mm × 5.0 mm) copper per terminal, as specified in the Vishay SM6T Series datasheet for optimal thermal and mechanical performance of the SM6T30AHE3_A/I.
How does the SM6T30AHE3_A/I differ from bidirectional variants like SM6T30CA?
The SM6T30AHE3_A/I is unidirectional, with polarity marked by a cathode band and intended for DC rail protection where reverse conduction must be blocked. In contrast, SM6T30CA is bidirectional, symmetric in both directions, and used for AC line or differential signal protection. The SM6T30AHE3_A/I exhibits forward voltage drop (~1.0 V) in forward bias, while SM6T30CA does not conduct in either direction below VBR.
What is the maximum operating junction temperature for SM6T30AHE3_A/I?
The SM6T30AHE3_A/I has a maximum junction temperature (TJ) of +150 °C, as defined in the Absolute Maximum Ratings table of Vishay datasheet 88385. This rating enables continuous operation in under-hood automotive environments and high-ambient industrial settings. Derating curves in the SM6T30AHE3_A/I datasheet show allowable power reduction above 25 °C ambient to maintain safe TJ.
SM6T30AHE3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- SM6T, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.5V
- Current - Peak Pulse (10/1000µs):
- 14.5A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SM6T30AHE3_A/I FAQ
1.How can I place an order for SM6T30AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T30AHE3_A/I on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SM6T30AHE3_A/I reliable?
The price and inventory of SM6T30AHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T30AHE3_A/I is usually 5 days.
3.What payment methods are accepted for SM6T30AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T30AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T30AHE3_A/I?
SM6T30AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T30AHE3_A/I order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SM6T30AHE3_A/I?
For technical support, including SM6T30AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T30AHE3_A/I requirements.
6.How does Aetrix verify that SM6T30AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SM6T30AHE3_A/I products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SM6T30AHE3_A/I meets industry standards.
7.What is the process for return or replacement of SM6T30AHE3_A/I?
All SM6T30AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SM6T30AHE3_A/I, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SM6T30AHE3_A/I part is unused and in its original packaging.
Return procedure for SM6T30AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T30AHE3_A/I Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
