My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SM6T30AHE3/52
;;2.jpg)
- Part No.:
- SM6T30AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T30AHE3/52.pdf
- Description:
- TVS DIODE 25.6VWM 41.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,833
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SM6T30AHE3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, rated for 30 V breakdown voltage (VBR = 28.5–31.5 V at 1.0 mA), 41.5 V maximum clamping voltage (VC) at 14.5 A peak pulse current, and 600 W peak pulse power with 10/1000 μs waveform. It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients in automotive and industrial control systems.
For engineers reviewing the SM6T30AHE3/52 datasheet, SM6T30AHE3/52 pinout, SM6T30AHE3/52 application, or SM6T30AHE3/52 equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 150 °C max junction temperature, low-inductance SMB package, and compliance with J-STD-020 MSL level 1.
Technical Context
The SM6T30AHE3/52 operates as a unidirectional clamping device with cathode-banded polarity, leveraging a glass-passivated silicon junction to achieve fast response (<1 ns) to transient overvoltages. Its 600 W peak pulse power rating is defined per 10/1000 μs waveform under standardized mounting conditions (0.2" × 0.2" copper pads).
Thermal performance is characterized by RθJA = 100 °C/W and RθJL = 20 °C/W, supporting operation from –65 °C to +150 °C. It meets AEC-Q101 stress testing requirements and is RoHS-compliant with matte tin-plated leads solderable per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 28.5 V / 31.5 V at 1.0 mA - defines precise voltage threshold for avalanche conduction onset |
| VWM | 25.6 V - maximum continuous reverse stand-off voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | 41.5 V at 14.5 A - clamping voltage limiting downstream circuit stress during 10/1000 μs surge |
| PPPM | 600 W - peak transient energy absorption capability without failure |
| TJ max | +150 °C - enables reliable operation in under-hood automotive and high-temperature industrial environments |
| Package | SMB (DO-214AA) - surface-mount footprint with 2.20 mm height and 5.59 mm length, optimized for automated placement |
Pinout & Package
SMB (DO-214AA) package with cathode band marking on one end; two-terminal device with anode and cathode leads. Mounting requires minimum 0.060" × 0.086" (1.52 mm × 2.18 mm) copper pad per terminal per Vishay recommended layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VRM exceeded |
| Anode | Reference/return path | Typically tied to system ground or low-impedance return plane for effective clamping |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Glass passivated junction | Ensures stable VBR tolerance and long-term leakage stability under thermal/humidity stress |
| Low inductance design | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a) |
| MSL Level 1 (260 °C peak) | Enables standard reflow assembly without moisture sensitivity concerns |
Applications
| Automotive Powertrain Control | Industrial Motor Drive Protection |
|---|---|
Use Scenario: Suppressing load-dump and inductive kickback transients on 12 V battery-fed ECU power rails and solenoid driver outputs. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between power rail and ground to limit voltage excursions below IC absolute maximum ratings. Use Value: Prevents latch-up or permanent damage to microcontrollers and gate drivers during engine cranking or relay de-energization. | Use Scenario: Protecting I/O lines and gate drive signals of 3-phase inverters from commutation spikes and ground bounce. IC Role / Device Role / Timing Role: Fast-response transient clamp on PWM signal paths and bootstrap supply nodes. Use Value: Maintains signal integrity and prevents false triggering of high-side gate drivers during rapid dV/dt events. |
| Automotive Sensor Interface | Telecom Line Card Surge Protection |
Use Scenario: Safeguarding analog front-end inputs of pressure, position, and temperature sensors connected to vehicle chassis ground. IC Role / Device Role / Timing Role: Low-leakage (≤1.0 μA at 25.6 V) unidirectional clamp on sensor signal lines. Use Value: Preserves measurement accuracy while blocking ESD and cable discharge events up to ±30 kV contact discharge. | Use Scenario: Secondary-level protection on Ethernet PHY power and data lines exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Standoff-clamp TVS in series with primary GDT or polymer PTC on DC bias rails. Use Value: Limits residual clamping voltage to <41.5 V during 10/1000 μs surges, ensuring PHY IC survival per IEC 61000-4-5 Level 3. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ30A | Same VBR range (28.5–31.5 V) and SMB package, but rated for 400 W PPPM (vs. 600 W) | Limited to lower-energy transients; not AEC-Q101 qualified | Select SMAJ30A only for cost-sensitive commercial designs where 400 W surge margin suffices |
| 1.5SMC30A | Higher PPPM (1500 W) in larger SMC (DO-214AB) package; VC = 48.4 V at 31.0 A | Requires PCB area increase (~30% larger footprint); higher clamping voltage reduces protection margin | Choose 1.5SMC30A when system-level surge tests exceed IEC 61000-4-5 Level 4 and board space permits |
Compared with SMAJ30A and 1.5SMC30A, the SM6T30AHE3/52 delivers optimal balance of automotive-grade reliability, 600 W surge capacity, and compact SMB footprint-making it preferred for space-constrained AEC-Q101-compliant modules where clamping voltage and thermal robustness are critical.
Availability
SM6T30AHE3/52 is available at Aetrix Electronics and suitable for automotive powertrain control, industrial motor drive protection, and telecom line card surge protection requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SM6T30AHE3/52 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, MOSFETs, and protection devices with emphasis on reliability, precision, and automotive qualification.
The SM6T Series is designed specifically for robust transient voltage suppression in harsh environments, targeting AEC-Q101-compliant automotive subsystems and industrial equipment requiring high-energy clamping in minimal PCB area.
FAQ
What is the breakdown voltage tolerance of SM6T30AHE3/52?
The SM6T30AHE3/52 has a specified breakdown voltage (VBR) range of 28.5 V to 31.5 V at 1.0 mA test current, representing ±10% tolerance around the nominal 30 V rating. This tight tolerance ensures predictable clamping behavior across production lots and supports accurate system-level overvoltage margin analysis for protected circuits.
Is SM6T30AHE3/52 suitable for automotive applications?
Yes, SM6T30AHE3/52 is AEC-Q101 qualified and explicitly designated for automotive use via the "HE3" suffix. It undergoes stress testing including temperature cycling, high-temperature reverse bias, and ESD per AEC-Q101 requirements, making it appropriate for engine control units, body electronics, and ADAS sensor interfaces where reliability under thermal and electrical stress is mandatory.
What is the maximum clamping voltage of SM6T30AHE3/52 under surge conditions?
The SM6T30AHE3/52 exhibits a maximum clamping voltage (VC) of 41.5 V when subjected to its rated peak pulse current of 14.5 A using the standard 10/1000 μs waveform. This value is measured under defined thermal conditions (25 °C ambient, 0.2" × 0.2" copper pads) and represents the upper voltage limit imposed on protected circuitry during transient events.
Does SM6T30AHE3/52 have bidirectional capability?
No, SM6T30AHE3/52 is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. Bidirectional variants in the SM6T series use the "CA" suffix (e.g., SM6T30CA). Using SM6T30AHE3/52 in AC-coupled or bipolar signal paths would result in forward conduction during negative half-cycles and is not recommended.
What packaging format is used for SM6T30AHE3/52?
SM6T30AHE3/52 is supplied in 7-inch plastic tape and reel format with a base quantity of 750 units per reel (ordering code suffix "/52"). The device uses SMB (DO-214AA) package with matte tin-plated leads compliant with J-STD-002 solderability standards and JESD 201 Class 2 whisker resistance.
SM6T30AHE3/52 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:
- Discontinued at Digi-Key
- 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)
SM6T30AHE3/52 FAQ
1.How can I place an order for SM6T30AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T30AHE3/52 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 SM6T30AHE3/52 reliable?
The price and inventory of SM6T30AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T30AHE3/52 is usually 5 days.
3.What payment methods are accepted for SM6T30AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T30AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T30AHE3/52?
SM6T30AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T30AHE3/52 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 SM6T30AHE3/52?
For technical support, including SM6T30AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T30AHE3/52 requirements.
6.How does Aetrix verify that SM6T30AHE3/52 is sourced from the original manufacturer or authorized distributors?
All SM6T30AHE3/52 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 SM6T30AHE3/52 meets industry standards.
7.What is the process for return or replacement of SM6T30AHE3/52?
All SM6T30AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SM6T30AHE3/52, 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 SM6T30AHE3/52 part is unused and in its original packaging.
Return procedure for SM6T30AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T30AHE3/52 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 …
