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Vishay General Semiconductor - Diodes Division SM6T7V5AHE3/52
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- Part No.:
- SM6T7V5AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T7V5AHE3/52.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,592
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Product details
Overview
SM6T7V5AHE3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, with 7.13 V minimum breakdown voltage (VBR), 6.40 V stand-off voltage (VWM), 11.3 V maximum clamping voltage (VC) at 53.0 A peak pulse current, and 600 W peak pulse power rating per 10/1000 μs waveform - deployed for overvoltage protection of MOSFETs and sensor signal lines in automotive ECUs.
For engineers reviewing the SM6T7V5AHE3/52 datasheet, SM6T7V5AHE3/52 pinout, SM6T7V5AHE3/52 application, or SM6T7V5AHE3/52 equivalent, key selection criteria include clamping performance under 10/1000 μs transients, AEC-Q101 qualification status, unidirectional polarity marking, thermal resistance (RθJA = 100 °C/W), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VWM (6.40 V), it transitions from high-impedance blocking to low-impedance conduction at VBR ≥ 7.13 V, limiting transient energy via controlled avalanche breakdown. Its glass-passivated junction ensures stable leakage (<500 μA at VWM) and repeatable clamping behavior.
Designed for surface-mount use in space-constrained layouts, the device delivers 600 W peak pulse power handling with low inductance and meets MSL Level 1 (260 °C reflow peak), supporting robust industrial and automotive-grade reliability without derating up to +125 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR min / max | 7.13 V / 7.88 V at 10 mA test current - defines precise avalanche initiation threshold for predictable turn-on during transients |
| VWM | 6.40 V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPPM | 11.3 V at 53.0 A (10/1000 μs) - clamping voltage seen by protected circuit during worst-case surge |
| PPPM | 600 W - peak transient power dissipation capability under standardized lightning/surge waveform |
| IFSM | 100 A - single half-sine surge current rating (10 ms), critical for inductive load switching protection |
| TJ max | +150 °C - maximum junction temperature enabling operation in under-hood automotive environments |
| RθJA | 100 °C/W - thermal resistance from junction to ambient, used to calculate safe power derating above 25 °C |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, RoHS-compliant and AEC-Q101 qualified (HE3 suffix). Cathode indicated by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference | Connected to system ground or low-side return path; establishes polarity-dependent clamping direction |
| Cathode | Avalanche conduction terminal / Transient sink | Connected to protected line (e.g., sensor supply or gate drive); conducts surge current to ground during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables suppression of ISO 7637-2 Pulse 1/2a/5a transients in 12 V automotive systems without external heat sinking |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD, supporting PPAP compliance |
| Glass passivated junction | Ensures long-term stability of VBR and leakage current across temperature and lifetime, reducing field failure risk |
| Low inductance SMB package | Minimizes voltage overshoot during fast-rising transients (e.g., EFT bursts), improving protection margin for sensitive ICs |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow profiles without moisture sensitivity concerns or baking requirements |
Applications
| Automotive Power Supply Protection | Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery rail inputs in engine control units against load dump and alternator transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between power rail and chassis ground to clamp surges above 6.4 V. Use Value: Limits transient voltage to ≤11.3 V during 53 A pulses, preventing damage to downstream LDOs and microcontrollers. | Use Scenario: Safeguarding analog output lines of pressure or temperature sensors exposed to ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS connected between signal line and ground to absorb sub-100 ns ESD strikes. Use Value: Clamps 8 kV contact ESD (IEC 61000-4-2) to <12 V within nanoseconds, preserving ADC input integrity. |
| MOSFET Gate Drive Protection | Industrial PLC Input Protection |
Use Scenario: Shielding N-channel MOSFET gates in motor driver half-bridges from inductive kickback during PWM switching. IC Role / Device Role / Timing Role: Fast-response TVS placed between gate and source to clamp negative-going spikes below -0.7 V and positive spikes above VGS(max). Use Value: Prevents gate oxide rupture by limiting VGS excursion to ≤11.3 V during 100 ns turn-off transients. | Use Scenario: Hardening digital input channels of programmable logic controllers against surges induced by nearby relay coil de-energization. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC input terminals, coordinated with series current-limiting resistor. Use Value: Absorbs 1 kV/500 A surge (IEC 61000-4-5) without degradation, maintaining >100 kΩ input impedance during normal operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.5A-E3/52 | Lower peak pulse power (400 W), higher VC (12.0 V at 33.3 A), same SMB package and AEC-Q101 qualification | Marginally lower clamping performance; suitable only where surge currents remain ≤33 A | Select when cost sensitivity outweighs need for full 600 W rating and tighter clamping |
| 1.5SMC7.5A | Higher package thermal resistance (RθJA ≈ 125 °C/W), same VBR/VC, but SMC (DO-214AB) package - 2.6 mm wider body | Requires PCB layout change due to larger footprint; better suited for manual repair or high-power heatsinked designs | Choose only if existing design uses SMC footprint or requires higher thermal mass for repetitive surges |
Compared with SMAJ7.5A-E3/52 and 1.5SMC7.5A, SM6T7V5AHE3/52 delivers superior 600 W surge handling and lower clamping voltage in an AEC-Q101-qualified SMB package, making it optimal for space-constrained automotive and industrial modules requiring validated reliability and minimal board area.
Availability
SM6T7V5AHE3/52 is available at Aetrix Electronics and suitable for automotive ECU power rails, sensor interface circuits, MOSFET gate protection, and industrial PLC input stages requiring stable component supply with AEC-Q101 assurance and consistent surge performance.
Supply support for SM6T7V5AHE3/52 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 optoelectronics with emphasis on reliability, precision, and application-specific validation.
The SM6T Series is engineered for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where AEC-Q101 qualification, low clamping voltage, and automated assembly compatibility are mandatory.
FAQ
What is the clamping voltage of SM6T7V5AHE3/52 under a 10/1000 μs surge?
The SM6T7V5AHE3/52 has a maximum clamping voltage (VC) of 11.3 V at 53.0 A peak pulse current under the standardized 10/1000 μs waveform. This value is measured per Figure 1 in Vishay's 88385 datasheet and reflects the actual voltage imposed on the protected circuit during worst-case transient events, ensuring downstream components like microcontrollers or gate drivers remain within safe operating limits.
Is SM6T7V5AHE3/52 qualified for automotive applications?
Yes, SM6T7V5AHE3/52 is AEC-Q101 qualified, as confirmed by its HE3 suffix and documentation in Vishay's SM6T series datasheet (Rev. 09-Jan-2024, Doc. #88385). This qualification covers stress tests including high-temperature operating life, temperature cycling, and ESD, making SM6T7V5AHE3/52 suitable for under-hood and chassis-mounted automotive electronics requiring zero-defect reliability.
What does the "HE3" suffix indicate in SM6T7V5AHE3/52?
The "HE3" suffix in SM6T7V5AHE3/52 denotes RoHS-compliant construction and AEC-Q101 qualification, distinguishing it from commercial-grade variants (E3) and halogen-free versions (HM3). It confirms that SM6T7V5AHE3/52 meets automotive reliability standards while using lead-free, matte tin-plated terminations compatible with J-STD-002 solderability requirements.
How does SM6T7V5AHE3/52 differ from bidirectional TVS diodes like SM6T7V5CA?
SM6T7V5AHE3/52 is unidirectional and features a cathode band for polarity identification, enabling asymmetric clamping - conducting only in reverse bias above VBR. In contrast, SM6T7V5CA is bidirectional (no polarity marking) and clamps equally in both directions, making it suitable for AC signal lines or differential buses. SM6T7V5AHE3/52 is preferred for DC power rail protection where forward conduction must be blocked.
What is the thermal resistance of SM6T7V5AHE3/52, and how does it affect power derating?
SM6T7V5AHE3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads. This value determines safe power derating: for example, at 75 °C ambient, the allowable continuous power drops to ~2.5 W (per Fig. 2 in the datasheet), though SM6T7V5AHE3/52 is primarily rated for non-repetitive 600 W pulses, not steady-state dissipation.
SM6T7V5AHE3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- SM6T, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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):
- 53A
- Power - Peak Pulse:
- 600W
- 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-214AA (SMBJ)
SM6T7V5AHE3/52 FAQ
1.How can I place an order for SM6T7V5AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T7V5AHE3/52 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 SM6T7V5AHE3/52 reliable?
The price and inventory of SM6T7V5AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T7V5AHE3/52 is usually 5 days.
3.What payment methods are accepted for SM6T7V5AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T7V5AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T7V5AHE3/52?
SM6T7V5AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T7V5AHE3/52 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 SM6T7V5AHE3/52?
For technical support, including SM6T7V5AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T7V5AHE3/52 requirements.
6.How does Aetrix verify that SM6T7V5AHE3/52 is sourced from the original manufacturer or authorized distributors?
All SM6T7V5AHE3/52 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 SM6T7V5AHE3/52 meets industry standards.
7.What is the process for return or replacement of SM6T7V5AHE3/52?
All SM6T7V5AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SM6T7V5AHE3/52, 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 SM6T7V5AHE3/52 part is unused and in its original packaging.
Return procedure for SM6T7V5AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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