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Vishay General Semiconductor - Diodes Division SM6T7V5AHM3_A/I
- Part No.:
- SM6T7V5AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T7V5AHM3_A/I.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,881
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Product details
Overview
SM6T7V5AHM3_A/I from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, with 7.13 V minimum breakdown voltage, 7.88 V maximum breakdown voltage at 10 mA test current, 6.40 V stand-off voltage, and 11.3 V clamping voltage at 53.0 A peak pulse current (10/1000 μs). It delivers 600 W peak pulse power for protecting MOSFETs and ICs against inductive switching transients in automotive sensor signal lines.
For engineers reviewing the SM6T7V5AHM3_A/I datasheet, SM6T7V5AHM3_A/I pinout, SM6T7V5AHM3_A/I application, or SM6T7V5AHM3_A/I equivalent, key selection criteria include clamping voltage margin relative to protected IC's absolute maximum rating, thermal resistance (RθJA = 100 °C/W), AEC-Q101 qualification status, and halogen-free RoHS compliance per ordering suffix HM3.
Technical Context
This TVS operates as a unidirectional clamping device with cathode-band polarity marking, leveraging glass-passivated junction technology for stable avalanche behavior. Its 10/1000 μs waveform response defines both peak pulse power (600 W) and clamping performance (11.3 V @ 53.0 A), while low inductance supports fast transient suppression in high-speed signal paths.
Designed for surface-mount automated placement, it meets J-STD-020 MSL Level 1 (260 °C peak reflow) and JESD 201 Class 2 whisker resistance. The SMB package enables compact PCB layout with 0.2" × 0.2" copper pad thermal management per Vishay's recommended footprint.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR min / max | 7.13 V / 7.88 V at 10 mA - defines reliable avalanche initiation window for predictable clamping onset |
| VWM | 6.40 V - maximum continuous reverse voltage before leakage exceeds 500 μA, sets operating margin below breakdown |
| VC @ IPPM | 11.3 V at 53.0 A (10/1000 μs) - actual clamped voltage seen by protected circuit during surge event |
| PPPM | 600 W - peak transient energy absorption capacity under standardized surge waveform |
| RθJA | 100 °C/W - junction-to-ambient thermal resistance determines derating above 25 °C ambient |
| TJ max | +150 °C - maximum allowable junction temperature defines sustained power handling limit |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, AEC-Q101 qualified (HM3 suffix), matte tin-plated leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Anode-side connection in reverse-biased protection configuration | Connected to protected line; clamps when voltage exceeds VWM, diverting surge current to ground |
| Anode | Reference/ground return path | Typically tied to system ground plane; completes current path during transient clamp event |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables robust protection against ISO 7637-2 Pulse 1/2a/5a surges in automotive ECUs without derating |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| Glass passivated chip junction | Ensures stable VBR tolerance and low parameter drift over lifetime and temperature |
| Low inductance SMB package | Minimizes voltage overshoot during fast-rising transients (<10 ns rise time), critical for CAN/LIN bus protection |
Applications
| Automotive Sensor Signal Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine control modules exposed to load-dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS clamping transient overvoltage on sensor supply or signal trace before reaching ADC input or op-amp buffer. Use Value: Prevents latch-up or permanent damage to 5 V rail-connected sensor interface ICs by limiting voltage to ≤11.3 V during 53 A surge events. | Use Scenario: Safeguarding 24 V digital input channels of programmable logic controllers against field-wiring induced transients. IC Role / Device Role / Timing Role: Standoff protection element placed between field terminal and optocoupler input, conducting only during overvoltage events. Use Value: Maintains functional safety integrity by ensuring input stage remains within 24 V ±10 % operating range despite 600 W surge injection. |
| Consumer Power Adapter ESD Clamping | Telecom Line Interface Surge Suppression |
Use Scenario: Secondary-side transient suppression on USB-C PD adapter output rails subject to human-body-model ESD and cable discharge events. IC Role / Device Role / Timing Role: Fast-response shunt device parallel to DC-DC converter output capacitor, clamping sub-microsecond spikes. Use Value: Eliminates need for additional RC snubbers by achieving <1 ns response time and holding downstream USB-PD controller VDD below 6.4 V standoff threshold. | Use Scenario: Primary protection for Ethernet PHY interface pins connected to RJ45 magnetics in PoE-powered access points. IC Role / Device Role / Timing Role: First-line defense against lightning-induced surges coupled through transformer windings into data lines. Use Value: Limits induced common-mode voltage to <12 V across PHY differential pair, preserving IEEE 802.3af compliance and link stability. |
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 | Same SMB package, 7.5 V nominal VBR, but lower PPPM = 400 W and non-AEC-Q101 rated | Limited to commercial-grade industrial or consumer use; not validated for automotive temperature cycling or humidity testing | Select SMAJ7.5A only if AEC-Q101 qualification and 600 W surge capacity are not required |
| SMCJ7.5A | Higher PPPM = 1500 W, larger SMC (DO-214AB) package, same VBR range, AEC-Q101 available in HM3 variant | Requires larger PCB area and different thermal pad layout; suited for higher-energy surge environments like battery disconnect circuits | Choose SMCJ7.5A when system-level surge testing exceeds IEC 61000-4-5 Level 4 (4 kV) requirements |
Compared with SMAJ7.5A and SMCJ7.5A, SM6T7V5AHM3_A/I provides optimal balance of AEC-Q101 compliance, 600 W capability, and SMB footprint-making it ideal for space-constrained automotive sensor nodes where qualification and standardized surge immunity are mandatory.
Availability
SM6T7V5AHM3_A/I is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC inputs, consumer power adapters, and telecom line interfaces requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SM6T7V5AHM3_A/I 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 automotive-grade qualification.
The SM6T Series is engineered specifically for high-reliability transient suppression in harsh environments, targeting automotive electronics, industrial controls, and communication infrastructure where consistent clamping performance and AEC-Q101 validation are essential.
FAQ
What is the clamping voltage of the SM6T7V5AHM3_A/I under a 10/1000 μs surge?
The SM6T7V5AHM3_A/I has a maximum clamping voltage (VC) of 11.3 V when subjected to a 10/1000 μs waveform at its rated peak pulse current of 53.0 A. This value is measured per Figure 1 in Vishay's datasheet 88385 and reflects the actual voltage seen by downstream circuitry during standardized surge testing. The SM6T7V5AHM3_A/I maintains this clamping performance across its qualified operating temperature range.
Is the SM6T7V5AHM3_A/I qualified for automotive applications?
Yes, the SM6T7V5AHM3_A/I is AEC-Q101 qualified, as confirmed by its HM3 suffix and documentation in Vishay's SM6T series datasheet (Rev. 09-Jan-2024). It undergoes stress testing including temperature cycling, high-temperature reverse bias, and ESD per the AEC-Q101 standard. The SM6T7V5AHM3_A/I is intended for use in automotive sensor units, body control modules, and infotainment systems requiring certified reliability.
What does the "HM3" suffix indicate in SM6T7V5AHM3_A/I?
The "HM3" suffix in SM6T7V5AHM3_A/I denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from commercial-grade E3/M3 versions and confirms compliance with automotive environmental and reliability standards. The "A/I" denotes tape-and-reel packaging in 13-inch reels (3200 units), as specified in Vishay's ordering information table.
How does the SM6T7V5AHM3_A/I compare to bidirectional TVS diodes?
The SM6T7V5AHM3_A/I is unidirectional and features a cathode band for polarity identification; it conducts only during reverse overvoltage events. Bidirectional variants (e.g., SM6T7V5CA) lack polarity marking and protect against surges of either polarity. The SM6T7V5AHM3_A/I is selected when circuit topology requires asymmetric protection-such as DC power rails or single-ended signal lines-where forward conduction must be blocked.
What is the thermal resistance of the SM6T7V5AHM3_A/I, and how does it affect layout?
The SM6T7V5AHM3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" copper pads per Vishay's recommended footprint. This value directly impacts power derating: at 85 °C ambient, its usable peak pulse power drops to ~420 W. Layout must follow the specified pad dimensions (0.086" × 0.220") to achieve this RθJA; reduced copper area increases thermal impedance and risks thermal runaway during repeated surges.
SM6T7V5AHM3_A/I 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:
- Obsolete
- 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 (SMB)
SM6T7V5AHM3_A/I FAQ
1.How can I place an order for SM6T7V5AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T7V5AHM3_A/I 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 SM6T7V5AHM3_A/I reliable?
The price and inventory of SM6T7V5AHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T7V5AHM3_A/I is usually 5 days.
3.What payment methods are accepted for SM6T7V5AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T7V5AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T7V5AHM3_A/I?
SM6T7V5AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T7V5AHM3_A/I 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 SM6T7V5AHM3_A/I?
For technical support, including SM6T7V5AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T7V5AHM3_A/I requirements.
6.How does Aetrix verify that SM6T7V5AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SM6T7V5AHM3_A/I 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 SM6T7V5AHM3_A/I meets industry standards.
7.What is the process for return or replacement of SM6T7V5AHM3_A/I?
All SM6T7V5AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SM6T7V5AHM3_A/I, 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 SM6T7V5AHM3_A/I part is unused and in its original packaging.
Return procedure for SM6T7V5AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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