My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SM15T150AHE3/9AT
- Part No.:
- SM15T150AHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T150AHE3/9AT.pdf
- Description:
- TVS DIODE 128VWM 207VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,441
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SM15T150AHE3/9AT from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, rated for 1500 W peak pulse power (10/1000 μs), 150 V standoff voltage (VWM), 207 V clamping voltage at 7.2 A IPPM, and AEC-Q101 qualified for automotive applications including engine control units and infotainment power rails.
For engineers reviewing the SM15T150AHE3/9AT datasheet, SM15T150AHE3/9AT pinout, SM15T150AHE3/9AT application, or SM15T150AHE3/9AT equivalent, key selection criteria include clamping voltage under 207 V at 7.2 A, unidirectional polarity with cathode band marking, 150 °C max junction temperature, and RoHS-compliant AEC-Q101 qualification for harsh-environment deployment.
Technical Context
This TVS diode operates as a voltage-clamping protection device triggered by reverse-biased avalanche breakdown above its 150 V stand-off threshold. It delivers 1500 W surge handling per IEC 61000-4-5 with low 15 °C/W junction-to-lead thermal resistance and 75 °C/W junction-to-ambient rating on standard 8 mm × 8 mm copper pads.
Designed for high-energy transient suppression, it features glass-passivated junction, low inductance layout, and MSL Level 1 moisture sensitivity-enabling reliable reflow soldering at 260 °C peak without popcorn failure. Its failure mode under overstress is short-circuit, supporting fail-safe system design.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 150 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 143 V / 158 V at 1 mA - Confirmed breakdown range ensures predictable turn-on margin |
| VC @ IPPM | 207 V at 7.2 A (10/1000 μs) - Clamping voltage limits downstream IC stress during lightning surges |
| PPPM | 1500 W - Peak pulse power rating defines maximum transient energy absorption capability |
| TJ max. | +150 °C - Enables operation in under-hood automotive environments and industrial enclosures |
| Package | SMC (DO-214AB) - Standardized surface-mount outline with 0.320" length and cathode band polarity marker |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling and HTRB testing |
Pinout & Package
SM15T150AHE3/9AT uses the SMC (DO-214AB) package: molded epoxy case with matte tin-plated leads, 0.320" (8.13 mm) body length, 0.246" (6.22 mm) width, and cathode band marking on one end. Mounting requires 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal per JEDEC standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry (unidirectional) | Connected to protected circuit ground or low-side return path |
| Cathode | Avalanche clamping node | Connected to line being protected; marked with band; carries full surge current during clamp event |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Enables robust protection against IEC 61000-4-5 lightning surges up to 4 kV/2 Ω without derating |
| Glass passivated chip junction | Ensures stable leakage performance (<1 μA at VWM) and long-term reliability under thermal cycling |
| Low inductance layout | Minimizes voltage overshoot during fast transients (e.g., ESD or switching spikes), improving clamping fidelity |
| MSL Level 1, 260 °C peak reflow | Supports single-pass lead-free assembly without moisture-induced delamination or popcorning |
| AEC-Q101 qualification | Validates suitability for automotive powertrain and ADAS subsystems requiring zero-defect field performance |
Applications
| Automotive Power Rail Protection | Industrial Motor Drive I/O Lines |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between power rail and ground. Use Value: Limits voltage to ≤207 V during 1500 W surges, preventing damage to MCU power supplies and CAN transceivers. | Use Scenario: Shielding PLC analog input modules from inductive kickback when controlling solenoids or relays. IC Role / Device Role / Timing Role: Standoff-mode transient suppressor across signal lines referenced to common ground. Use Value: Clamps 10/1000 μs transients within 100 ns response time, preserving ADC accuracy and isolator integrity. |
| Telecom DC Power Feeds | Consumer Appliance Control Boards |
Use Scenario: Safeguarding PoE-powered Ethernet switches and base station RF front-end bias rails. IC Role / Device Role / Timing Role: Primary overvoltage clamp on -48 V or +57 V DC distribution lines. Use Value: Withstands repeated 1500 W surges while maintaining <1 μA leakage at 150 V, minimizing standby power loss. | Use Scenario: Securing microcontroller reset lines and sensor supply rails in washing machines and HVAC controllers. IC Role / Device Role / Timing Role: Low-leakage transient suppressor placed directly at IC VDD pins. Use Value: Prevents latch-up and brownout resets caused by relay coil switching noise on shared PCB power planes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ150A | Same 150 V VWM, 207 V VC, but rated for 400 W (SMA package); smaller footprint, lower surge capacity | Not AEC-Q101 qualified; limited to commercial-grade consumer/industrial use | Select when board space is constrained and surge threat level is below 400 W |
| ON Semiconductor 1.5SMC150A | Identical 150 V VWM and 207 V VC, but non-AEC-Q101; RoHS-compliant SMC package with same pinout | Lacks automotive qualification; not validated for temperature cycling or HTRB per AEC standards | Choose for cost-sensitive industrial designs where automotive reliability is not required |
Compared with SMAJ150A and 1.5SMC150A, SM15T150AHE3/9AT uniquely combines 1500 W surge rating, AEC-Q101 qualification, and SMC package compatibility-making it the only option certified for under-hood automotive deployment with full lightning-surge immunity.
Availability
SM15T150AHE3/9AT is available at Aetrix Electronics and suitable for automotive power rail protection, industrial motor drive I/O lines, telecom DC power feeds, and consumer appliance control boards requiring stable component supply and long-term lifecycle support.
Supply support for SM15T150AHE3/9AT 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 high-reliability, high-power, and automotive-qualified components.
The SM15T Series is designed specifically for high-energy transient suppression in automotive, industrial, and telecom infrastructure-delivering 1500 W surge capability in standardized SMC packaging with AEC-Q101 validation.
FAQ
What is the clamping voltage of SM15T150AHE3/9AT at its rated peak pulse current?
The SM15T150AHE3/9AT has a maximum clamping voltage (VC) of 207 V at 7.2 A peak pulse current (IPPM), measured using the standard 10/1000 μs waveform. This value is guaranteed across temperature and ensures downstream components remain within safe operating voltage limits during surge events. The SM15T150AHE3/9AT achieves this with low dynamic impedance and fast avalanche response.
Is SM15T150AHE3/9AT suitable for automotive applications?
Yes, SM15T150AHE3/9AT is AEC-Q101 qualified and explicitly designated for automotive use via the "HE3" suffix. It undergoes rigorous stress testing-including temperature cycling, highly accelerated life testing (HALT), and humidity testing-to meet automotive reliability requirements. The SM15T150AHE3/9AT is commonly deployed in engine control units, body control modules, and infotainment power supplies.
What does the "HE3" suffix indicate in SM15T150AHE3/9AT?
The "HE3" suffix in SM15T150AHE3/9AT denotes RoHS-compliant construction and AEC-Q101 qualification. It distinguishes this variant from commercial-grade versions (e.g., "E3") and confirms compliance with automotive reliability standards. The SM15T150AHE3/9AT also meets JESD201 Class 2 whisker resistance and MSL Level 1 reflow requirements.
What is the thermal resistance of SM15T150AHE3/9AT?
The SM15T150AHE3/9AT has a typical junction-to-lead thermal resistance (RθJL) of 15 °C/W and junction-to-ambient resistance (RθJA) of 75 °C/W when mounted on 0.31" × 0.31" copper pads. These values enable effective heat dissipation during repetitive surge events and support sustained operation up to +150 °C junction temperature. The SM15T150AHE3/9AT's low RθJL enhances reliability in high-current transient scenarios.
How is polarity identified on SM15T150AHE3/9AT?
SM15T150AHE3/9AT is a unidirectional TVS diode with polarity indicated by a cathode band printed on the package body. The banded end is the cathode and must be connected to the line being protected; the opposite end is the anode, tied to ground or reference potential. No marking appears on bidirectional variants, but SM15T150AHE3/9AT is unidirectional and always uses the band for orientation. This marking is visible under standard optical inspection.
SM15T150AHE3/9AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- SM15T, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 128V
- Voltage - Breakdown (Min):
- 143V
- Voltage - Clamping (Max) @ Ipp:
- 207V
- Current - Peak Pulse (10/1000µs):
- 7.2A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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-214AB (SMCJ)
SM15T150AHE3/9AT FAQ
1.How can I place an order for SM15T150AHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T150AHE3/9AT 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 SM15T150AHE3/9AT reliable?
The price and inventory of SM15T150AHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T150AHE3/9AT is usually 5 days.
3.What payment methods are accepted for SM15T150AHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T150AHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T150AHE3/9AT?
SM15T150AHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T150AHE3/9AT 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 SM15T150AHE3/9AT?
For technical support, including SM15T150AHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T150AHE3/9AT requirements.
6.How does Aetrix verify that SM15T150AHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SM15T150AHE3/9AT 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 SM15T150AHE3/9AT meets industry standards.
7.What is the process for return or replacement of SM15T150AHE3/9AT?
All SM15T150AHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SM15T150AHE3/9AT, 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 SM15T150AHE3/9AT part is unused and in its original packaging.
Return procedure for SM15T150AHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T150AHE3/9AT 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 …
