My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SM15T36AHE3_A/H
- Part No.:
- SM15T36AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T36AHE3_A/H.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,310
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SM15T36AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) in SMC (DO-214AB) package, rated for 1500 W peak pulse power (10/1000 μs), 30.8 V stand-off voltage (VWM), 34.2–37.8 V breakdown voltage (VBR), and 49.9 V maximum clamping voltage (VC) at 30.0 A peak pulse current. It protects MOSFETs, ICs, and sensor signal lines in automotive powertrain control modules against lightning-induced and inductive-switching transients.
For engineers reviewing the SM15T36AHE3_A/H datasheet, SM15T36AHE3_A/H pinout, SM15T36AHE3_A/H application, or SM15T36AHE3_A/H equivalent, key selection criteria include verified clamping performance at 30 A, AEC-Q101 qualification status, unidirectional polarity with cathode band marking, thermal resistance (RθJA = 75 °C/W), and compatibility with J-STD-020 MSL Level 1 reflow profiles.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under transient overvoltage exceeding VBR, it avalanches to divert surge current away from downstream circuitry while holding voltage across protected nodes ≤ VC. Its glass-passivated junction ensures stable breakdown and low leakage (<1.0 μA at VWM).
Designed for high-energy threats, it sustains 1500 W peak pulse power per 10/1000 μs waveform with derating above 25 °C, and handles 200 A non-repetitive forward surge (10 ms half-sine). Failure mode is short-circuit, enabling fail-safe system behavior in automotive and industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30.8 V - Maximum continuous reverse operating voltage before significant leakage; defines upper limit of normal signal swing in protected line |
| VBR (min/max) | 34.2 V / 37.8 V - Breakdown threshold range at 1.0 mA test current; determines earliest clamping onset during overvoltage |
| VC @ IPPM | 49.9 V at 30.0 A - Clamped voltage during 10/1000 μs surge; directly limits stress on downstream ICs or MOSFETs |
| PPPM | 1500 W - Peak pulse power handling capacity; validates suitability for lightning-level transients per IEC 61000-4-5 |
| TJ max. | +150 °C - Maximum junction temperature; enables operation in under-hood automotive environments |
| RθJA | 75 °C/W - Thermal resistance junction-to-ambient; informs PCB copper pad sizing (0.31" × 0.31") for thermal reliability |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, MSL Level 1 (260 °C peak reflow), AEC-Q101 qualified. Cathode indicated by band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction or avalanche | Connected to ground or low-impedance return path; forms shunt path for transient energy |
| Cathode | Current exit terminal during forward conduction; marked with band | Connected to protected line (e.g., 12 V rail or sensor output); defines unidirectional polarity |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Validates robustness against severe lightning surges and motor-switching transients without degradation |
| AEC-Q101 qualified | Confirms reliability for automotive applications including engine control units and ADAS power supplies |
| Low clamping ratio (VC/VBR ≈ 1.37) | Minimizes overvoltage exposure to protected devices while maintaining fast response |
| Glass-passivated junction | Ensures stable VBR tolerance and low leakage (<1.0 μA) over temperature and lifetime |
| MSL Level 1 compliance | Supports standard SMT assembly without moisture sensitivity concerns or baking requirements |
Applications
| Automotive Powertrain Control | Industrial Motor Drive I/O Protection |
|---|---|
Use Scenario: Protecting 12 V supply rails and Hall-effect sensor outputs in engine control modules exposed to load-dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between sensor output and microcontroller input, conducting only during negative transients. Use Value: Limits voltage to ≤49.9 V during 30 A surges, preventing latch-up or gate oxide damage in automotive-grade MCUs. |
Use Scenario: Safeguarding analog input channels of PLC analog I/O modules connected to 4–20 mA current loops near AC contactors. IC Role / Device Role / Timing Role: Shunt protector on signal line referenced to system ground, activated within nanoseconds of overvoltage onset. Use Value: Clamps induced switching spikes from contactor coil de-energization, preserving ADC accuracy and isolator integrity. |
| Telecom DC Power Feeds | Consumer Appliance Motor Control Boards |
Use Scenario: Guarding -48 V telecom rectifier outputs against lightning-induced surges entering via outdoor cabling. IC Role / Device Role / Timing Role: Primary front-end TVS on DC input stage, coordinated with upstream fuses and secondary filtering. Use Value: Absorbs up to 1500 W transient energy without failure, maintaining uninterrupted power to base station backplane. |
Use Scenario: Shielding BLDC motor driver ICs and gate drivers on washing machine main control boards from commutation noise. IC Role / Device Role / Timing Role: Localized clamp at motor phase output node, placed adjacent to power MOSFET source terminals. Use Value: Suppresses <30 ns rise-time voltage spikes to safe levels, eliminating false triggering of overvoltage protection circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A-E3/57T | 600 W PPPM, same VWM/VBR, SMA package (smaller footprint, higher RθJA) | Lower energy handling; suitable for consumer-grade I/O where threat level is limited to ESD or minor switching noise | Select when board space is constrained and surge immunity requirements align with IEC 61000-4-2, not IEC 61000-4-5 |
| SMCJ36AHE3_A/H | 3000 W PPPM, identical package and AEC-Q101 qualification, higher VC (58.1 V) | Higher clamping voltage but double pulse power; used where lightning threat severity exceeds 1500 W baseline | Choose when system-level testing reveals margin shortfall in 1500 W tests or when redundancy is required |
Compared with SMAJ36A-E3/57T and SMCJ36AHE3_A/H, SM15T36AHE3_A/H delivers optimal balance of automotive-grade reliability, 1500 W surge capability, and 49.9 V clamping-making it the preferred choice for cost-sensitive AEC-Q101 designs requiring validated lightning immunity without over-engineering.
Availability
SM15T36AHE3_A/H is available at Aetrix Electronics and suitable for automotive powertrain control, industrial motor drive I/O protection, and telecom DC power feeds requiring stable component supply, long-term lifecycle support, and traceable AEC-Q101 qualified sourcing.
Supply support for SM15T36AHE3_A/H 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, TVS, and MOSFETs with emphasis on high-reliability, automotive-qualified, and industry-standard packaging.
The SM15T Series is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where AEC-Q101 validation and 1500 W surge immunity are mandatory design requirements.
FAQ
What is the clamping voltage of SM15T36AHE3_A/H at its rated peak pulse current?
The SM15T36AHE3_A/H has a maximum clamping voltage (VC) of 49.9 V at 30.0 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured with the device mounted on 0.31" × 0.31" copper pads per JEDEC standards and defines the upper voltage limit imposed on protected circuitry during worst-case surge events. The SM15T36AHE3_A/H maintains this clamping performance across its qualified temperature range.
Is SM15T36AHE3_A/H qualified for automotive applications?
Yes, SM15T36AHE3_A/H is AEC-Q101 qualified, as confirmed by its HE3 suffix and explicit documentation in Vishay's SM15T series datasheet (Document Number: 88380, Revision: 09-Jan-2024). This qualification covers stress testing for temperature cycling, humidity bias, mechanical shock, and surge immunity-making SM15T36AHE3_A/H suitable for engine control units, body electronics, and ADAS subsystems where automotive reliability is mandatory.
What does the "HE3" and "_A/H" suffix indicate in SM15T36AHE3_A/H?
The "HE3" suffix denotes RoHS-compliant construction with AEC-Q101 qualification, while "_A/H" specifies packaging: "A" indicates the revision code (Revision A), and "H" identifies the preferred package code for 7-inch tape-and-reel delivery with 850 units per reel. This ordering format aligns with Vishay's standardized nomenclature for automotive-grade SMC-packaged TVS diodes, ensuring consistent sourcing and traceability for production programs.
How does SM15T36AHE3_A/H differ from bidirectional variants like SM15T36CA?
SM15T36AHE3_A/H is unidirectional, featuring a cathode band and designed to protect against positive transients on grounded lines or negative transients on VCC-referenced paths. In contrast, SM15T36CA is bidirectional, with no polarity marking and symmetrical clamping in both directions-used for AC lines or differential signals. The SM15T36AHE3_A/H cannot substitute for SM15T36CA in floating or AC-coupled applications due to inherent polarity dependence.
What is the thermal resistance and recommended PCB layout for SM15T36AHE3_A/H?
SM15T36AHE3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal, as specified in the Vishay datasheet. To achieve rated power dissipation and avoid thermal runaway during repetitive surges, designers must implement minimum pad dimensions, avoid excessive solder mask coverage on thermal pads, and ensure adequate airflow or proximity to ground planes-critical for sustained operation near TJ max. of +150 °C.
SM15T36AHE3_A/H 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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 30.8V
- Voltage - Breakdown (Min):
- 34.2V
- Voltage - Clamping (Max) @ Ipp:
- 49.9V
- Current - Peak Pulse (10/1000µs):
- 30A
- 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)
SM15T36AHE3_A/H FAQ
1.How can I place an order for SM15T36AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T36AHE3_A/H 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 SM15T36AHE3_A/H reliable?
The price and inventory of SM15T36AHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T36AHE3_A/H is usually 5 days.
3.What payment methods are accepted for SM15T36AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T36AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T36AHE3_A/H?
SM15T36AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T36AHE3_A/H 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 SM15T36AHE3_A/H?
For technical support, including SM15T36AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T36AHE3_A/H requirements.
6.How does Aetrix verify that SM15T36AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All SM15T36AHE3_A/H 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 SM15T36AHE3_A/H meets industry standards.
7.What is the process for return or replacement of SM15T36AHE3_A/H?
All SM15T36AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SM15T36AHE3_A/H, 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 SM15T36AHE3_A/H part is unused and in its original packaging.
Return procedure for SM15T36AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T36AHE3_A/H 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
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 …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
