My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SM15T6V8A-E3/57T
- Part No.:
- SM15T6V8A-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T6V8A-E3/57T.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:1,180
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SM15T6V8A-E3/57T from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) in SMC (DO-214AB) package, featuring 6.45 V minimum breakdown voltage (VBR), 5.8 V stand-off voltage (VWM), 10.5 V maximum clamping voltage (VC) at 143 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 μs waveform. It protects MOSFETs, ICs, and sensor signal lines against lightning-induced and inductive-switching transients in automotive and industrial power supplies.
For engineers reviewing the SM15T6V8A-E3/57T datasheet, SM15T6V8A-E3/57T pinout, SM15T6V8A-E3/57T application, or SM15T6V8A-E3/57T equivalent, key selection criteria include verified unidirectional polarity, clamping performance under 143 A IPPM, thermal resistance (RθJA = 75 °C/W), RoHS-compliant matte tin plating, and AEC-Q101 qualification eligibility via HE3 suffix variants.
Technical Context
This TVS diode operates as a voltage-clamped overvoltage protection device, triggered when reverse voltage exceeds 6.45 V (min VBR at 10 mA). Its glass-passivated junction ensures stable breakdown and low leakage (<1000 μA at 5.8 V), while low-inductance SMC package enables fast response to sub-microsecond transients.
The device sustains 1500 W peak pulse power per 10/1000 μs waveform under defined mounting conditions (8.0 mm × 8.0 mm copper pads), with failure mode specified as short-circuit under overstress. Junction temperature range spans −65 °C to +150 °C, supporting operation in under-hood automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 5.8 V - Maximum continuous reverse operating voltage before significant leakage begins |
| VBR (Breakdown Voltage) | 6.45–7.14 V at 10 mA - Confirmed threshold where avalanche conduction initiates reliably |
| VC (Clamping Voltage) | 10.5 V at 143 A IPPM - Peak voltage seen by protected circuit during worst-case transient |
| PPPM (Peak Pulse Power) | 1500 W with 10/1000 μs waveform - Sustained energy absorption capacity without degradation |
| RθJA (Junction-to-Ambient) | 75 °C/W - Thermal resistance defining temperature rise per watt under standard PCB layout |
| TJ max. | +150 °C - Maximum allowable junction temperature for reliable long-term operation |
| Polarity | Unidirectional - Cathode marked by band; blocks forward current, clamps reverse transients |
Pinout & Package
Package: SMC (DO-214AB), molded in UL 94 V-0 compliant compound, matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Polarity indicated by cathode band on case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse transient return path | Connected to system ground or low-impedance return; completes clamping loop during surge |
| Cathode | Avalanche conduction terminal / High-side connection point | Connected to line being protected; voltage referenced to anode during clamping event |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Enables robust protection against IEC 61000-4-5 Level 4 (4 kV) surges on 5 V rails with margin |
| Low clamping ratio (VC/VBR ≈ 1.55) | Minimizes overvoltage stress on downstream 6 V-rated ICs during 143 A transients |
| Glass-passivated junction | Ensures stable VBR tolerance and <1000 μA leakage at VWM, critical for battery-powered sensors |
| MSL Level 1 (260 °C peak) | Supports lead-free reflow without popcorn effect or delamination in automated SMT assembly |
| AEC-Q101 qualification path | HE3/M3 suffix variants available for automotive ECUs requiring qualified TVS components |
Applications
| Automotive Power Supply Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: 12 V battery-fed ECU power rail exposed to load-dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT and GND to clamp spikes above 10.5 V within 1 ns. Use Value: Prevents damage to 5 V LDO regulators and CAN transceivers by limiting voltage excursion to safe levels during ISO 7637-2 Pulse 5a events. |
Use Scenario: 24 V digital input module receiving signals from field sensors across long cables. IC Role / Device Role / Timing Role: TVS mounted at connector interface to absorb inductive kickback from solenoid actuation. Use Value: Maintains logic-level integrity by suppressing >1 kV transients before they reach optocoupler inputs or microcontroller GPIOs. |
| Consumer Appliance Motor Drive | Telecom DC Power Feeds |
Use Scenario: Brushed DC motor controller board in washing machine with PWM-driven H-bridge. IC Role / Device Role / Timing Role: TVS across motor terminals to suppress back-EMF spikes during commutation. Use Value: Extends MOSFET lifetime by limiting drain-source voltage overshoot to ≤10.5 V during 143 A switching events. |
Use Scenario: -48 V DC power feed to remote radio unit in cellular base station. IC Role / Device Role / Timing Role: Unidirectional TVS on power input to protect DC/DC converters from lightning-induced surges on outdoor cabling. Use Value: Meets Telcordia GR-1089-CORE Level 3 requirements with 1500 W dissipation capability and 75 °C/W thermal design margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.0A-E3/57T | Lower PPPM (400 W), higher VC (10.5 V @ 32.4 A), same SMC package | Insufficient for IEC 61000-4-5 Level 4; suitable only for low-energy ESD or localized EFT | Select SM15T6V8A-E3/57T when 1500 W surge handling and 143 A IPPM are required. |
| 1.5SMC6.8A | Same electrical specs but non-RoHS, legacy packaging (no MSL Level 1 rating) | Lacks J-STD-020 compliance; not suitable for modern lead-free reflow processes | Choose SM15T6V8A-E3/57T for RoHS compliance, 260 °C reflow compatibility, and traceable sourcing. |
Compared with SMAJ6.0A-E3/57T and 1.5SMC6.8A, SM15T6V8A-E3/57T delivers 3.75× higher peak pulse power, validated MSL Level 1 process compatibility, and tighter VBR tolerance (±5% vs ±10%), making it the preferred choice for high-reliability industrial and automotive surge protection where sustained 143 A clamping is mandated.
Availability
SM15T6V8A-E3/57T is available at Aetrix Electronics and suitable for automotive power rail protection, industrial PLC input conditioning, and telecom DC feed surge suppression requiring stable component supply, full RoHS compliance, and documented thermal derating behavior.
Supply support for SM15T6V8A-E3/57T 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, thermal performance, and automotive-grade qualification.
The SM15T Series was engineered specifically for high-energy transient suppression in harsh environments-targeting automotive, industrial, and telecom infrastructure where 1500 W pulse handling and AEC-Q101 readiness are mandatory.
FAQ
What is the clamping voltage of SM15T6V8A-E3/57T at its rated peak pulse current?
The SM15T6V8A-E3/57T has a maximum clamping voltage (VC) of 10.5 V when subjected to its rated peak pulse current (IPPM) of 143 A using the standard 10/1000 μs waveform. This value is measured under defined test conditions with 8.0 mm × 8.0 mm copper pads per terminal and represents the upper voltage limit imposed on protected circuitry during surge events.
Is SM15T6V8A-E3/57T suitable for automotive applications?
SM15T6V8A-E3/57T itself is commercial-grade (E3 suffix), but Vishay offers AEC-Q101-qualified versions under HE3 suffix (e.g., SM15T6V8AHE3_A/H). The SM15T6V8A-E3/57T shares identical electrical and thermal characteristics, making it suitable for prototyping and non-safety-critical automotive subsystems where qualification is pending or not mandated.
What does the "-E3/57T" suffix indicate in SM15T6V8A-E3/57T?
The "E3" denotes RoHS-compliant, commercial-grade construction with matte tin-plated leads; "57T" specifies packaging in 7-inch diameter plastic tape and reel, with a base quantity of 850 units. This ordering code ensures compatibility with standard SMT pick-and-place equipment and meets J-STD-002 solderability requirements.
How does SM15T6V8A-E3/57T differ from bidirectional TVS diodes like SM15T6V8CA?
SM15T6V8A-E3/57T is unidirectional and features a cathode band for polarity identification; it conducts only in reverse bias during transients. In contrast, SM15T6V8CA is bidirectional with no polarity marking and clamps voltage in both directions-making it appropriate for AC lines or differential signal protection, whereas SM15T6V8A-E3/57T is optimized for DC power rail protection.
What is the thermal resistance of SM15T6V8A-E3/57T, and how does it affect PCB layout?
The SM15T6V8A-E3/57T has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 8.0 mm × 8.0 mm copper pads per terminal. To maintain safe junction temperatures under sustained power dissipation, designers must allocate adequate copper area and avoid thermal bottlenecks-especially important in high-temperature automotive or industrial enclosures where ambient exceeds 85 °C.
SM15T6V8A-E3/57T 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):
- 5.8V
- Voltage - Breakdown (Min):
- 6.45V
- Voltage - Clamping (Max) @ Ipp:
- 10.5V
- Current - Peak Pulse (10/1000µs):
- 143A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SM15T6V8A-E3/57T FAQ
1.How can I place an order for SM15T6V8A-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T6V8A-E3/57T 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 SM15T6V8A-E3/57T reliable?
The price and inventory of SM15T6V8A-E3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T6V8A-E3/57T is usually 5 days.
3.What payment methods are accepted for SM15T6V8A-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T6V8A-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T6V8A-E3/57T?
SM15T6V8A-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T6V8A-E3/57T 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 SM15T6V8A-E3/57T?
For technical support, including SM15T6V8A-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T6V8A-E3/57T requirements.
6.How does Aetrix verify that SM15T6V8A-E3/57T is sourced from the original manufacturer or authorized distributors?
All SM15T6V8A-E3/57T 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 SM15T6V8A-E3/57T meets industry standards.
7.What is the process for return or replacement of SM15T6V8A-E3/57T?
All SM15T6V8A-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SM15T6V8A-E3/57T, 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 SM15T6V8A-E3/57T part is unused and in its original packaging.
Return procedure for SM15T6V8A-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T6V8A-E3/57T 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…
