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Vishay General Semiconductor - Diodes Division SM15T7V5CAHE3/57T
- Part No.:
- SM15T7V5CAHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T7V5CAHE3/57T.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,935
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Product details
Overview
SM15T7V5CAHE3/57T 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 (VBR), and 11.3 V clamping voltage (VC) at 132 A peak pulse current. It protects automotive sensor signal lines against lightning-induced and inductive-switching transients.
For engineers reviewing the SM15T7V5CAHE3/57T datasheet, SM15T7V5CAHE3/57T pinout, SM15T7V5CAHE3/57T application, or SM15T7V5CAHE3/57T equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, low clamping ratio (VC/VBR ≈ 1.49), 150 °C max junction temperature, and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
This device operates as a voltage-clamped surge protector with symmetrical bidirectional conduction-no polarity marking required. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low leakage (<500 μA at 6.4 V stand-off), while the SMC package delivers low inductance and meets MSL Level 1 (260 °C reflow).
Designed for high-energy transient suppression, it sustains 1500 W peak pulse power under standardized 10/1000 μs waveform conditions, with thermal resistance of 75 °C/W (junction-to-ambient) and failure mode specified as short-circuit under overstress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.13 V / 7.88 V - defines precise clamping onset threshold in both directions; ±5% tolerance enables predictable overvoltage protection. |
| VWM | 6.40 V - maximum continuous reverse stand-off voltage; ensures no conduction during normal 5 V rail operation. |
| VC @ IPPM | 11.3 V @ 132 A - clamping voltage under full 1500 W threat; limits downstream IC stress to safe margin below 12 V logic rails. |
| PPPM | 1500 W - peak pulse power rating per 10/1000 μs waveform; suitable for lightning and motor-switching transients per IEC 61000-4-5. |
| TJ max | 150 °C - maximum junction temperature; supports under-hood automotive environments without derating at 85 °C ambient. |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD; suffix HE3 confirms qualification. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 7.11 mm × 6.22 mm × 2.62 mm (L × W × H); matte tin-plated leads, J-STD-002 solderable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (bidirectional) | Functions identically as cathode under reverse bias; symmetric terminal enables flexible PCB layout without orientation constraints. |
| Cathode | Transient current entry (bidirectional) | Same electrical role as anode; no band marking distinguishes terminals-device is fully symmetrical for AC or differential line protection. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or differential signal paths (e.g., CAN FD, LIN, sensor bridges) without polarity concerns. |
| 1500 W peak pulse power | Withstands IEC 61000-4-5 Level 4 (4 kV surge) on 2 Ω source impedance when mounted per recommended pad layout. |
| AEC-Q101 qualified (HE3) | Validated for automotive electronics including engine control modules, ADAS sensors, and body control units requiring long-term field reliability. |
| Low clamping ratio (VC/VBR) | 1.49 - minimizes voltage overshoot during clamping; critical for protecting 5 V or 3.3 V microcontrollers and transceivers. |
Applications
| Automotive Sensor Protection | Industrial I/O Line Protection |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine bays exposed to load-dump and alternator ripple. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed directly at connector interface to shunt transients before reaching signal conditioning amplifier. Use Value: Prevents latch-up or gate oxide damage in downstream op-amps and ADCs by limiting transient voltage to ≤11.3 V at 132 A. | Use Scenario: Safeguarding RS-485 communication lines in factory automation PLCs subjected to relay-coil switching noise. IC Role / Device Role / Timing Role: Bidirectional surge suppressor across differential pair (A/B) to clamp common-mode and differential-mode transients simultaneously. Use Value: Maintains signal integrity during 1 kV/μs fast transients without adding capacitance that degrades 10 Mbps data rates. |
| Consumer Power Adapter Input | Telecom DSL Line Interface |
Use Scenario: Secondary-side transient suppression on 5 V USB-C PD output rails in wall adapters vulnerable to ESD and surges. IC Role / Device Role / Timing Role: Final-stage clamping device after primary-side MOV and secondary-side filter, absorbing residual energy missed upstream. Use Value: Ensures <100 ns response time and <11.3 V clamping to protect USB-PD controller ICs compliant with IEC 61000-4-2 Level 4. | Use Scenario: Overvoltage protection on POTS line interface circuits in DSL modems handling lightning-induced surges on outdoor copper pairs. IC Role / Device Role / Timing Role: Primary surge diverter between tip/ring and codec IC, operating in parallel with gas discharge tube (GDT) for multi-stage protection. Use Value: Handles 1500 W energy bursts without degradation, enabling GDT to handle higher-energy events while TVS manages fast rise-time components. |
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 | 600 W peak pulse power (vs. 1500 W); same VBR range but lower IPPM (62 A) and higher VC (12.9 V). | Not AEC-Q101 qualified; suited for commercial-grade consumer electronics only. | Select when cost sensitivity outweighs automotive reliability requirements and surge threat level is limited to IEC 61000-4-2 ESD only. |
| 1.5KE7.5CA | Through-hole DO-201 package; identical 1500 W rating but larger footprint and higher thermal resistance (RθJA = 100 °C/W vs. 75 °C/W). | Lacks SMT compatibility and MSL-1 reflow rating; unsuitable for high-density automotive PCBs. | Choose only for legacy through-hole designs where board space and reflow profile allow; avoid for new AEC-Q101-compliant platforms. |
Compared with SMAJ7.5CA and 1.5KE7.5CA, SM15T7V5CAHE3/57T uniquely combines AEC-Q101 qualification, SMC package for automated assembly, and superior thermal performance-making it the preferred choice for next-generation automotive and industrial SMT designs requiring robust 1500 W transient immunity.
Availability
SM15T7V5CAHE3/57T is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial RS-485 networks, and telecom DSL line protection requiring stable component supply, AEC-Q101 compliance, and 1500 W surge immunity.
Supply support for SM15T7V5CAHE3/57T 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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SM15T Series is engineered for high-energy transient suppression in harsh environments-designed specifically for automotive, industrial, and telecom systems where AEC-Q101 qualification, low clamping voltage, and SMT manufacturability are mandatory.
FAQ
What does the "CA" suffix indicate in SM15T7V5CAHE3/57T?
The "CA" suffix denotes a bidirectional configuration-meaning SM15T7V5CAHE3/57T provides symmetrical clamping in both forward and reverse directions, with no polarity marking required. This differs from unidirectional variants (e.g., SM15T7V5A) that feature a cathode band and conduct only in reverse bias. The CA version is ideal for AC signal lines, differential buses, and applications where voltage polarity reversal may occur.
Is SM15T7V5CAHE3/57T suitable for automotive applications?
Yes, SM15T7V5CAHE3/57T is AEC-Q101 qualified (confirmed by the "HE3" suffix), making it suitable for automotive use cases including engine control units, ADAS sensors, and infotainment interfaces. It has passed stress tests for temperature cycling, high-temperature reverse bias, and mechanical shock-ensuring reliability in under-hood and cabin environments up to 150 °C junction temperature.
What is the clamping voltage of SM15T7V5CAHE3/57T and why does it matter?
The clamping voltage (VC) of SM15T7V5CAHE3/57T is 11.3 V at 132 A peak pulse current (10/1000 μs waveform). This value matters because it defines the maximum voltage imposed on protected circuitry during a surge event. With a VC of 11.3 V, SM15T7V5CAHE3/57T safely limits stress on 12 V tolerant components and provides headroom for 5 V or 3.3 V ICs when used with appropriate series impedance.
How does the SMC (DO-214AB) package of SM15T7V5CAHE3/57T compare to SMA or SMB?
The SMC package of SM15T7V5CAHE3/57T measures 7.11 mm × 6.22 mm × 2.62 mm-larger than SMA (4.5 mm × 2.7 mm) and SMB (3.9 mm × 2.6 mm)-enabling higher power dissipation (1500 W vs. 400 W for SMAJ series) and lower thermal resistance (75 °C/W vs. ~120 °C/W for SMA). Its robust size supports high-current surge handling while maintaining compatibility with standard SMT pick-and-place equipment.
Can SM15T7V5CAHE3/57T replace SM15T7V5A in an existing design?
No-SM15T7V5CAHE3/57T is bidirectional, while SM15T7V5A is unidirectional with a cathode band. Substituting them requires verifying circuit topology: SM15T7V5CAHE3/57T may be used in place of SM15T7V5A only if the protected line is AC-coupled or polarity-insensitive. In DC-biased circuits (e.g., 5 V supply rail), using the bidirectional variant could cause unintended conduction; always validate with SPICE simulation and functional testing.
SM15T7V5CAHE3/57T 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:
- Discontinued at Digi-Key
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SM15T7V5CAHE3/57T FAQ
1.How can I place an order for SM15T7V5CAHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T7V5CAHE3/57T 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 SM15T7V5CAHE3/57T reliable?
The price and inventory of SM15T7V5CAHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T7V5CAHE3/57T is usually 5 days.
3.What payment methods are accepted for SM15T7V5CAHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T7V5CAHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T7V5CAHE3/57T?
SM15T7V5CAHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T7V5CAHE3/57T 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 SM15T7V5CAHE3/57T?
For technical support, including SM15T7V5CAHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T7V5CAHE3/57T requirements.
6.How does Aetrix verify that SM15T7V5CAHE3/57T is sourced from the original manufacturer or authorized distributors?
All SM15T7V5CAHE3/57T 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 SM15T7V5CAHE3/57T meets industry standards.
7.What is the process for return or replacement of SM15T7V5CAHE3/57T?
All SM15T7V5CAHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SM15T7V5CAHE3/57T, 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 SM15T7V5CAHE3/57T part is unused and in its original packaging.
Return procedure for SM15T7V5CAHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T7V5CAHE3/57T Tags
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