My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SM15T7V5A-E3/57T
- Part No.:
- SM15T7V5A-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T7V5A-E3/57T.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,239
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SM15T7V5A-E3/57T from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, with 7.13 V minimum breakdown voltage (VBR), 6.40 V standoff voltage (VWM), 11.3 V maximum clamping voltage (VC) at 132 A peak pulse current, and 1500 W peak pulse power rating (10/1000 μs). It protects MOSFETs and signal lines in automotive sensor units against inductive switching transients.
For engineers reviewing the SM15T7V5A-E3/57T datasheet, SM15T7V5A-E3/57T pinout, SM15T7V5A-E3/57T application, or SM15T7V5A-E3/57T equivalent, key selection criteria include clamping performance under 132 A IPPM, thermal resistance (RθJA = 75 °C/W), RoHS-compliant commercial-grade construction, and unidirectional polarity with cathode band marking.
Technical Context
The SM15T7V5A-E3/57T operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds 7.13 V (min) and clamping to ≤11.3 V at 132 A (10/1000 μs). Its glass-passivated junction ensures stable breakdown and low leakage (<500 μA at 6.40 V).
Designed for high-energy transient suppression, it sustains 200 A non-repetitive forward surge (10 ms half-sine) and operates from −65 °C to +150 °C. The SMC package provides low inductance and meets MSL Level 1 (260 °C reflow peak), supporting automated placement in automotive and industrial PCBs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.40 V - Maximum continuous reverse operating voltage before significant leakage begins; defines safe DC bias margin. |
| VBR (min/max) | 7.13 V / 7.88 V at 10 mA - Confirmed avalanche initiation range; ensures predictable turn-on across temperature and unit variation. |
| VC @ IPPM | 11.3 V at 132 A (10/1000 μs) - Clamping voltage during worst-case lightning/inductive surge; limits stress on downstream ICs. |
| PPPM | 1500 W - Peak transient power handling capability; enables protection against IEC 61000-4-5 Level 4 threats. |
| IFSM | 200 A - Single half-sine surge rating (10 ms); supports robustness against motor-coil turn-off spikes. |
| RθJA | 75 °C/W - Junction-to-ambient thermal resistance on 8 mm × 8 mm copper pads; informs heatsinking requirements for sustained operation. |
| TJ max | +150 °C - Maximum junction temperature; allows use in under-hood automotive environments with derating. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode indicated by molded band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference node | Connected to system ground or low-side return path; defines reference for clamping action. |
| Cathode | Avalanche conduction terminal / Protected line connection | Connected to protected signal/power line; conducts transient energy to ground when VAK > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Enables single-device protection against IEC 61000-4-5 surges up to 4 kV (open-circuit) without cascaded stages. |
| Low clamping ratio (VC/VBR ≈ 1.59) | Minimizes overvoltage stress on 5 V logic interfaces while maintaining margin above VWM = 6.40 V. |
| Glass passivated junction | Ensures stable VBR tolerance (±5 % typical), low leakage (<500 μA), and long-term reliability in humid environments. |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow without preconditioning; eliminates moisture-related popcorning risk. |
| RoHS-compliant, commercial grade (E3 suffix) | Meets EU RoHS Directive 2011/65/EU and JESD201 Class 2 whisker resistance; suitable for consumer and industrial production. |
Applications
| Automotive Sensor Protection | Industrial Motor Drive I/O |
|---|---|
Use Scenario: Protecting LIN bus transceivers and Hall-effect sensor outputs in engine control modules exposed to load-dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between sensor output and ground, conducting only during reverse overvoltage events. Use Value: Limits transient voltage to ≤11.3 V, preserving signal integrity of 5 V tolerant receivers and preventing latch-up in ASICs. |
Use Scenario: Safeguarding PLC digital input terminals connected to solenoid valves and relay coils subject to 200 A switching surges. IC Role / Device Role / Timing Role: Primary surge shunt device mounted at connector entry point, absorbing energy before reaching optocoupler isolation stage. Use Value: Withstands 200 A IFSM, enabling direct placement without series impedance, reducing BOM count and board space. |
| Consumer Power Adapter Input | Telecom Line Interface |
Use Scenario: Secondary-side overvoltage suppression in USB-C PD adapters where 5 V rail must survive accidental 12 V misconnection or transformer ringing. IC Role / Device Role / Timing Role: Fast-response unidirectional clamp referenced to local ground, activated within nanoseconds of overvoltage onset. Use Value: Low 75 °C/W RθJA allows self-heating control on compact 2-layer boards without dedicated thermal vias. |
Use Scenario: Protecting Ethernet PHY interface pins (e.g., MDI-X) from ESD and induced surges on building-wiring runs exceeding 100 m. IC Role / Device Role / Timing Role: First-line defense before integrated ESD diodes in PHY IC, sharing surge current to reduce localized heating. Use Value: 1500 W PPPM handles combined IEC 61000-4-5 and IEC 61000-4-2 threats without degradation after 1000+ strikes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.0A-E3/52 | Lower PPPM (600 W), higher VC (12.0 V @ 43.3 A), SMB package (smaller footprint, higher RθJA = 85 °C/W) | Limited to lower-energy threats (IEC 61000-4-5 Level 2); unsuitable for 132 A surge scenarios. | Select when space-constrained layouts prioritize footprint over surge headroom and thermal performance. |
| SMCJ7.0A-E3/57T | Same SMC package, identical VWM/VBR/VC, but rated for 3000 W PPPM and 243 A IPPM; higher cost and larger die. | Overqualified for 1500 W threat profiles; may introduce unnecessary capacitance (CJ ≈ 1500 pF vs. ~1200 pF for SM15T7V5A). | Choose only if future-proofing against higher-level surge standards or extended lifetime under repeated overstress is required. |
Compared with SMBJ7.0A-E3/52 and SMCJ7.0A-E3/57T, the SM15T7V5A-E3/57T delivers optimal balance of 1500 W surge capacity, 11.3 V clamping, and thermal performance in the SMC footprint-making it the targeted solution for automotive and industrial designs requiring validated Level 3–4 transient immunity without overengineering.
Availability
SM15T7V5A-E3/57T is available at Aetrix Electronics and suitable for automotive sensor units, industrial motor drive I/O protection, and telecom line interface circuits requiring stable component supply, full traceability, and compliance with RoHS and JESD201 Class 2 whisker resistance.
Supply support for SM15T7V5A-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, TVS devices, and power MOSFETs with emphasis on reliability, ruggedness, and application-specific qualification.
The SM15T Series is engineered for high-energy transient suppression in harsh environments-designed to meet automotive, industrial, and telecom surge immunity standards while supporting automated SMT assembly and long-term field stability.
FAQ
What is the clamping voltage of SM15T7V5A-E3/57T at its rated peak pulse current?
The SM15T7V5A-E3/57T has a maximum clamping voltage (VC) of 11.3 V when subjected to its peak pulse current (IPPM) of 132 A under the standardized 10/1000 μs waveform. This value is measured at TA = 25 °C on recommended 8.0 mm × 8.0 mm copper pads and defines the upper voltage limit imposed on protected circuitry during surge events.
Is SM15T7V5A-E3/57T suitable for automotive applications?
SM15T7V5A-E3/57T is RoHS-compliant and commercial-grade (E3 suffix), not AEC-Q101 qualified. For automotive applications requiring qualification, Vishay offers the SM15T7V5AHE3_A/H variant. The SM15T7V5A-E3/57T remains appropriate for non-safety-critical automotive subsystems-such as cabin sensors or infotainment I/O-where customer validation confirms suitability.
How does the thermal resistance of SM15T7V5A-E3/57T affect PCB layout?
The SM15T7V5A-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 TJ ≤ 150 °C under repetitive surges, designers must allocate sufficient copper area and avoid thermal bottlenecks-especially critical in enclosed enclosures or high ambient temperature environments.
What is the meaning of the "-E3/57T" suffix in SM15T7V5A-E3/57T?
The "E3" suffix indicates RoHS-compliant, commercial-grade construction with matte tin-plated leads meeting JESD201 Class 2 whisker resistance. The "/57T" denotes packaging in 7-inch diameter plastic tape and reel, with a base quantity of 850 units-standard for SMT pick-and-place compatibility and logistics handling at Aetrix Electronics.
Does SM15T7V5A-E3/57T have bidirectional capability?
No, SM15T7V5A-E3/57T is a unidirectional TVS diode. Its polarity is marked by a cathode band; it conducts only when the anode is negative relative to the cathode. For bidirectional protection, Vishay offers the SM15T7V5CA-E3/57T variant, which uses a center-tapped configuration and omits polarity marking.
SM15T7V5A-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):
- 6.4V
- Voltage - Breakdown (Min):
- 7.13V
- Voltage - Clamping (Max) @ Ipp:
- 11.3V
- Current - Peak Pulse (10/1000µs):
- 132A
- 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)
SM15T7V5A-E3/57T FAQ
1.How can I place an order for SM15T7V5A-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T7V5A-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 SM15T7V5A-E3/57T reliable?
The price and inventory of SM15T7V5A-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 SM15T7V5A-E3/57T is usually 5 days.
3.What payment methods are accepted for SM15T7V5A-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T7V5A-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T7V5A-E3/57T?
SM15T7V5A-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T7V5A-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 SM15T7V5A-E3/57T?
For technical support, including SM15T7V5A-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T7V5A-E3/57T requirements.
6.How does Aetrix verify that SM15T7V5A-E3/57T is sourced from the original manufacturer or authorized distributors?
All SM15T7V5A-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 SM15T7V5A-E3/57T meets industry standards.
7.What is the process for return or replacement of SM15T7V5A-E3/57T?
All SM15T7V5A-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SM15T7V5A-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 SM15T7V5A-E3/57T part is unused and in its original packaging.
Return procedure for SM15T7V5A-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T7V5A-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
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 …
