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Vishay General Semiconductor - Diodes Division SM15T7V5CA-M3/57T
- Part No.:
- SM15T7V5CA-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T7V5CA-M3/57T.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,254
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Product details
Overview
SM15T7V5CA-M3/57T from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) 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 in automotive sensor units and industrial I/O interfaces against lightning-induced and inductive-switching transients.
For engineers reviewing the SM15T7V5CA-M3/57T datasheet, SM15T7V5CA-M3/57T pinout, SM15T7V5CA-M3/57T application, or SM15T7V5CA-M3/57T equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VBR ≈ 1.49), halogen-free RoHS compliance, AEC-Q101 qualification eligibility, and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, delivering consistent clamping behavior during positive and negative transient events. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<500 μA at 6.40 V stand-off), while low inductance supports fast response to sub-microsecond transients.
The device is thermally rated for TJ = –65 °C to +150 °C, with RθJL = 15 °C/W enabling effective heat transfer to PCB copper. Its failure mode under overstress is short-circuit - a safe, predictable behavior critical for automotive and industrial fault containment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 μs) | 1500 W - sustains high-energy lightning surges without degradation when mounted on 8.0 mm × 8.0 mm copper pads |
| Breakdown Voltage VBR | 7.13–7.88 V at 10 mA - defines precise conduction threshold for bidirectional overvoltage protection |
| Stand-off Voltage VWM | 6.40 V - maximum continuous reverse voltage before leakage exceeds 500 μA, ensuring no false triggering |
| Clamping Voltage VC | 11.3 V at 132 A IPPM - limits downstream IC voltage stress to safe levels during worst-case transients |
| Package | SMC (DO-214AB) - industry-standard surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height |
| Operating Temperature | –65 °C to +150 °C - supports under-hood automotive and industrial environments without derating |
| Compliance | Halogen-free, RoHS-compliant (M3 suffix), MSL Level 1 (260 °C reflow), JESD201 Class 2 whisker resistant |
Pinout & Package
SM15T7V5CA-M3/57T uses the SMC (DO-214AB) package - a surface-mount, bidirectional device with no polarity marking. The two terminals are symmetrical and interchangeable; neither is designated anode or cathode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Bidirectional transient path (anode/cathode) | Connects to protected line; conducts equally in both directions above VBR |
| Terminal 2 | Bidirectional transient path (cathode/anode) | Connects to reference plane (e.g., ground or common rail); completes symmetrical clamping loop |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse rating (10/1000 μs) | Enables robust protection against IEC 61000-4-5 Level 4 (4 kV) surges without external series impedance |
| Low clamping ratio (VC/VBR ≈ 1.49) | Minimizes voltage overshoot during clamping, reducing stress on downstream 5 V logic and analog front-ends |
| Glass-passivated junction | Ensures long-term stability of VBR and leakage under thermal cycling and humidity exposure |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking, simplifying SMT manufacturing |
| AEC-Q101 qualification path | Supports automotive-grade qualification via HM3 suffix variants, meeting stress test requirements for passenger vehicles |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load-dump and inductive kickback in engine control modules. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector interface to shunt transients before reaching signal conditioning circuitry. Use Value: Prevents latch-up or permanent damage to 5 V tolerant transceivers by limiting transient voltage to ≤11.3 V at 132 A. |
Use Scenario: Safeguarding 24 V digital input channels in programmable logic controllers against field-wiring induced surges and relay coil flyback. IC Role / Device Role / Timing Role: Primary transient suppression element located between terminal block and optocoupler input stage. Use Value: Maintains functional safety integrity by clamping 1 kV/500 A surge waveforms within 1 ns response time and surviving >1000 such events. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Shielding RS-485 transceivers and Ethernet PHY magnetics from ESD and lightning-induced surges in outdoor base stations. IC Role / Device Role / Timing Role: Secondary-level protection device placed after gas discharge tube (GDT) primary stage in cascaded architecture. Use Value: Provides low-clamp, low-capacitance (≈200 pF) suppression that preserves signal integrity up to 10 Mbps without distortion. |
Use Scenario: Protecting microcontroller GPIOs and gate drivers in washing machine motor inverters from commutation spikes generated by BLDC motors. IC Role / Device Role / Timing Role: Localized TVS mounted adjacent to MOSFET driver ICs to absorb <100 ns rise-time switching transients. Use Value: Eliminates need for snubbers or RC networks by clamping 600 V spikes to <12 V, improving system reliability and reducing BOM count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.5CA | Lower peak power (600 W), same VBR range (6.8–7.6 V), SMB package (smaller footprint, higher RθJA) | Limited to lower-energy threats (IEC 61000-4-5 Level 2); unsuitable for direct lightning coupling points | Select SMBJ7.5CA only when board space is constrained and transient threat level is ≤1 kV/500 A. |
| 1.5KE7.5CA | Higher peak power (1500 W), axial-leaded DO-201 package, higher parasitic inductance (>30 nH vs. <15 nH) | Not compatible with automated SMT assembly; requires through-hole rework or adapter; slower response | Choose 1.5KE7.5CA only for prototyping or legacy through-hole designs where reflow compatibility is not required. |
Compared with SMBJ7.5CA and 1.5KE7.5CA, SM15T7V5CA-M3/57T delivers identical clamping performance in a surface-mount package optimized for high-volume automotive and industrial production, with superior thermal dissipation (RθJL = 15 °C/W) and lower inductance for faster transient response.
Availability
SM15T7V5CA-M3/57T is available at Aetrix Electronics and suitable for automotive sensor units, industrial PLC I/O modules, and telecom line interfaces requiring stable component supply, halogen-free compliance, and AEC-Q101 qualification readiness.
Supply support for SM15T7V5CA-M3/57T 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 optimization.
The SM15T Series was engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where failure modes must be safe and predictable under repeated surge stress.
FAQ
What is the clamping voltage of SM15T7V5CA-M3/57T at its rated peak pulse current?
The SM15T7V5CA-M3/57T has a maximum clamping voltage (VC) of 11.3 V when subjected to its peak pulse current (IPPM) of 132 A under the standard 10/1000 μs waveform. This value is measured at 25 °C with the device mounted on 8.0 mm × 8.0 mm copper pads per JEDEC standards, and it defines the upper voltage limit imposed on protected circuits during surge events.
Is SM15T7V5CA-M3/57T suitable for automotive applications?
Yes, SM15T7V5CA-M3/57T is designed for automotive use: it carries the M3 suffix indicating halogen-free and RoHS compliance, meets MSL Level 1 for lead-free reflow, and belongs to the AEC-Q101-qualified SM15T family (with HM3 variants available). Its –65 °C to +150 °C operating range and short-circuit failure mode align with automotive safety requirements.
How does the bidirectional configuration of SM15T7V5CA-M3/57T affect its circuit implementation?
The bidirectional configuration of SM15T7V5CA-M3/57T means it has no polarity marking and functions identically for positive and negative transients. It is installed across the protected line and reference plane (e.g., signal-to-ground), eliminating orientation concerns during placement and enabling symmetric protection of AC-coupled or differential interfaces like RS-485 or CAN.
What is the thermal resistance from junction to lead (RθJL) for SM15T7V5CA-M3/57T?
The SM15T7V5CA-M3/57T has a typical thermal resistance from junction to lead (RθJL) of 15 °C/W. This low value enables efficient heat transfer from the silicon die to the PCB copper pads, supporting reliable operation at full power dissipation even in compact layouts without additional heatsinking.
Does SM15T7V5CA-M3/57T require a series impedance for optimal protection?
No, SM15T7V5CA-M3/57T is designed for direct connection without mandatory series impedance; its low clamping voltage and high IPPM allow it to absorb 1500 W surges independently. However, in cascaded protection schemes (e.g., GDT + TVS), a current-limiting resistor or inductor may be added upstream to extend device lifetime under repetitive stress.
SM15T7V5CA-M3/57T 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:
- -
- 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-M3/57T FAQ
1.How can I place an order for SM15T7V5CA-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T7V5CA-M3/57T 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 SM15T7V5CA-M3/57T reliable?
The price and inventory of SM15T7V5CA-M3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T7V5CA-M3/57T is usually 5 days.
3.What payment methods are accepted for SM15T7V5CA-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T7V5CA-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T7V5CA-M3/57T?
SM15T7V5CA-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T7V5CA-M3/57T 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 SM15T7V5CA-M3/57T?
For technical support, including SM15T7V5CA-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T7V5CA-M3/57T requirements.
6.How does Aetrix verify that SM15T7V5CA-M3/57T is sourced from the original manufacturer or authorized distributors?
All SM15T7V5CA-M3/57T 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 SM15T7V5CA-M3/57T meets industry standards.
7.What is the process for return or replacement of SM15T7V5CA-M3/57T?
All SM15T7V5CA-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SM15T7V5CA-M3/57T, 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 SM15T7V5CA-M3/57T part is unused and in its original packaging.
Return procedure for SM15T7V5CA-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T7V5CA-M3/57T Tags
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