My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SM15T7V5CA-M3/9AT
- Part No.:
- SM15T7V5CA-M3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T7V5CA-M3/9AT.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,044
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SM15T7V5CA-M3/9AT from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, rated for 1500 W peak pulse power (10/1000 μs), 7.13–7.88 V breakdown voltage at 10 mA, and 11.3 V maximum clamping voltage at 132 A peak pulse current. It protects signal lines and power rails in automotive sensor units and industrial I/O interfaces against lightning-induced and switching transients.
For engineers reviewing the SM15T7V5CA-M3/9AT datasheet, SM15T7V5CA-M3/9AT pinout, SM15T7V5CA-M3/9AT application, or SM15T7V5CA-M3/9AT equivalent, this page delivers verified electrical parameters, bidirectional clamping behavior, SMC package thermal data, AEC-Q101 qualification status, and real-world protection use cases - all confirmed from Vishay's official SM15T Series documentation (Rev. 09-Jan-2024, Doc. #88380).
Technical Context
The SM15T7V5CA-M3/9AT operates as a bidirectional avalanche diode with symmetrical clamping in both polarities, enabling robust protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction ensures stable breakdown and low leakage (<500 μA at 6.40 V stand-off).
Designed for high-energy transient suppression, it delivers 1500 W peak pulse power under 10/1000 μs waveform with low dynamic impedance, and exhibits thermal resistance of 75 °C/W (junction-to-ambient) when mounted on 8.0 mm × 8.0 mm copper pads - critical for sustained surge handling in automotive and industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.13 V / 7.88 V at 10 mA - defines precise avalanche initiation threshold for reliable overvoltage triggering |
| VWM | 6.40 V - maximum continuous reverse operating voltage before leakage exceeds 500 μA |
| VC @ IPPM | 11.3 V at 132 A - clamping voltage during 1500 W transient, limiting downstream voltage stress |
| PPPM | 1500 W (10/1000 μs) - energy-handling capacity sufficient for lightning and inductive-switching threats |
| TJ max | +150 °C - enables operation in under-hood automotive and high-temperature industrial enclosures |
| Package | SMC (DO-214AB) - surface-mount footprint with 7.75 mm × 6.22 mm body and 2.06 mm height for automated assembly |
| Qualification | AEC-Q101 qualified (HM3 suffix) - validated for automotive-grade reliability including temperature cycling and humidity testing |
Pinout & Package
SM15T7V5CA-M3/9AT uses the SMC (DO-214AB) package: a surface-mount, bidirectional device with no polarity marking; terminals are symmetric and interchangeable. The case is molded with UL 94 V-0 flammability rating, matte tin-plated leads compliant with J-STD-002 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative half-cycle) | One terminal of symmetrical avalanche junction; conducts during negative surges relative to cathode reference |
| Cathode | Transient current entry (positive half-cycle) | Other terminal of symmetrical junction; conducts during positive surges - functionally identical to anode in bidirectional mode |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR and VC in both directions - eliminates need for polarity-aware layout in AC or differential lines |
| 1500 W peak pulse rating | Withstands lightning-induced transients per IEC 61000-4-5 (10/1000 μs) without degradation |
| Low clamping ratio (VC/VBR ≈ 1.49) | Minimizes overvoltage margin between trigger and clamp - reduces stress on protected ICs like CAN transceivers |
| Halogen-free, RoHS-compliant (M3) | Meets environmental compliance requirements for automotive and industrial OEM production |
| MSL Level 1 (260 °C peak) | Enables standard reflow soldering without moisture sensitivity concerns or baking preconditioning |
Applications
| Automotive Sensor Protection | Industrial I/O Line Protection |
|---|---|
Use Scenario: Protecting LIN/CAN bus nodes and analog sensor outputs (e.g., pressure, temperature) in engine control modules from load-dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional TVS placed across signal pair or supply rail to clamp fast-rising transients before they reach MCU or analog front-end. Use Value: Clamps to 11.3 V at 132 A, preventing latch-up or gate oxide damage in 5 V/3.3 V automotive ICs while maintaining signal integrity. | Use Scenario: Shielding PLC digital input channels and RS-485 transceivers from ESD and inductive kickback from solenoid valves or motor drivers. IC Role / Device Role / Timing Role: Primary transient shunt on field-side interface, absorbing >1 kV EFT bursts per IEC 61000-4-4 and lightning surges per IEC 61000-4-5. Use Value: 1500 W rating handles repeated 10/1000 μs surges without parametric shift; low inductance ensures sub-nanosecond response. |
| Consumer Power Adapter Input | Telecom DC Power Feeds |
Use Scenario: Safeguarding primary-side rectifier and controller ICs in universal-input AC/DC adapters against line surges and lightning coupling. IC Role / Device Role / Timing Role: Across-line (L–N) or line-to-ground (L–G/N–G) TVS suppressing common-mode and differential-mode transients entering via mains input. Use Value: 6.40 V stand-off supports 5 V bias rails; 11.3 V clamping prevents overvoltage on 12 V auxiliary supplies during surge events. | Use Scenario: Protecting -48 V DC power inputs in telecom base station equipment from induced surges on long outdoor cable runs. IC Role / Device Role / Timing Role: Bidirectional shunt on DC feed prior to DC/DC converter, clamping both positive and negative polarity surges on the same rail. Use Value: Symmetrical VBR (7.13–7.88 V) allows use on negative rails without polarity reversal; AEC-Q101 qualification ensures long-term field reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.5CA | 400 W peak pulse power (vs. 1500 W); SMA package (smaller thermal mass); VC = 12.0 V @ 32.5 A | Limited to lower-energy threats (e.g., ESD, contact discharge); unsuitable for lightning-level surges | Select SMAJ7.5CA only for space-constrained consumer applications with defined low-energy threat profiles. |
| SMCJ7.5CA | Identical SMC package and 1500 W rating; VBR = 7.22–8.02 V; VC = 12.0 V @ 125 A - slightly higher clamping than SM15T7V5CA-M3/9AT | Same automotive/industrial use cases; minor clamping voltage difference affects protected IC margin | SMCJ7.5CA is a direct functional alternative but requires validation of 0.7 V higher clamping impact on downstream 5 V logic. |
Compared with SMAJ7.5CA and SMCJ7.5CA, SM15T7V5CA-M3/9AT offers the lowest clamping voltage (11.3 V) among 1500 W SMC bidirectional TVS diodes at this voltage grade, delivering tighter overvoltage control for sensitive 3.3 V/5 V systems while maintaining AEC-Q101 qualification and halogen-free compliance.
Availability
SM15T7V5CA-M3/9AT is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O protection, and telecom DC power feed designs requiring stable component supply, long-lifecycle support, and AEC-Q101-qualified surge immunity.
Supply support for SM15T7V5CA-M3/9AT 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, power efficiency, and automotive-grade qualification.
The SM15T Series is designed specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where 1500 W surge capability, bidirectional symmetry, and AEC-Q101 validation are mandatory.
FAQ
What is the breakdown voltage range of SM15T7V5CA-M3/9AT?
The SM15T7V5CA-M3/9AT has a guaranteed breakdown voltage range of 7.13 V to 7.88 V at a test current of 10 mA, measured per JEDEC standards. This tight VBR window ensures consistent turn-on behavior across production lots and supports precise overvoltage protection design for 5 V and 3.3 V systems. The value is confirmed in Vishay's official SM15T Series datasheet (Doc. #88380, Rev. 09-Jan-2024).
Is SM15T7V5CA-M3/9AT suitable for automotive applications?
Yes, SM15T7V5CA-M3/9AT is AEC-Q101 qualified (denoted by the HM3 suffix), making it suitable for automotive applications including engine control units, body electronics, and ADAS sensor interfaces. Its 1500 W surge rating, -65 °C to +150 °C operating range, and halogen-free construction meet stringent automotive reliability and environmental requirements. The qualification is explicitly stated in Vishay's ordering information table for HM3 variants.
What does the "CA" suffix indicate in SM15T7V5CA-M3/9AT?
The "CA" suffix in SM15T7V5CA-M3/9AT denotes a bidirectional configuration - meaning the device provides symmetrical transient suppression in both forward and reverse directions. Unlike unidirectional "A" variants, CA devices have no polarity marking and are used where AC signals, differential buses (e.g., CAN, RS-485), or undefined voltage polarity require equal clamping in either direction. This is defined in Vishay's SM15T Series application notes.
What is the maximum clamping voltage of SM15T7V5CA-M3/9AT under surge conditions?
The SM15T7V5CA-M3/9AT has a maximum clamping voltage (VC) of 11.3 V at 132 A peak pulse current, tested with a 10/1000 μs waveform. This value represents the upper limit of voltage seen by downstream circuitry during worst-case transient events and is critical for ensuring compatibility with 5 V or 3.3 V ICs. It is specified in the Electrical Characteristics table of the official Vishay datasheet.
Does SM15T7V5CA-M3/9AT require special PCB layout considerations?
Yes, SM15T7V5CA-M3/9AT should be mounted on minimum recommended copper pad areas of 0.31" × 0.31" (8.0 mm × 8.0 mm) per terminal to achieve its rated 1500 W pulse power and thermal performance. Short, direct traces to protected lines minimize inductance, and placement must be adjacent to the connector or interface being protected - not near noise sources. These guidelines are detailed in the Mechanical Data and Ratings Curves sections of Vishay's SM15T documentation.
SM15T7V5CA-M3/9AT 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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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)
SM15T7V5CA-M3/9AT FAQ
1.How can I place an order for SM15T7V5CA-M3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T7V5CA-M3/9AT 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 SM15T7V5CA-M3/9AT reliable?
The price and inventory of SM15T7V5CA-M3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T7V5CA-M3/9AT is usually 5 days.
3.What payment methods are accepted for SM15T7V5CA-M3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T7V5CA-M3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T7V5CA-M3/9AT?
SM15T7V5CA-M3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T7V5CA-M3/9AT 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 SM15T7V5CA-M3/9AT?
For technical support, including SM15T7V5CA-M3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T7V5CA-M3/9AT requirements.
6.How does Aetrix verify that SM15T7V5CA-M3/9AT is sourced from the original manufacturer or authorized distributors?
All SM15T7V5CA-M3/9AT 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 SM15T7V5CA-M3/9AT meets industry standards.
7.What is the process for return or replacement of SM15T7V5CA-M3/9AT?
All SM15T7V5CA-M3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SM15T7V5CA-M3/9AT, 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 SM15T7V5CA-M3/9AT part is unused and in its original packaging.
Return procedure for SM15T7V5CA-M3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T7V5CA-M3/9AT 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 …
