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Vishay General Semiconductor - Diodes Division 1.5SMC7.5AHE3/57T
- Part No.:
- 1.5SMC7.5AHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC7.5AHE3/57T.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:8,916
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Product details
Overview
1.5SMC7.5AHE3/57T from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of sensitive electronics. It features a 6.40 V stand-off voltage (VWM), 7.13–7.88 V breakdown voltage (VBR) at 10 mA, 11.3 V maximum clamping voltage (VC) at 133 A peak pulse current, and 1500 W peak pulse power capability with 10/1000 μs waveform - ideal for automotive sensor line and MOSFET gate protection.
For engineers reviewing the 1.5SMC7.5AHE3/57T datasheet, 1.5SMC7.5AHE3/57T pinout, 1.5SMC7.5AHE3/57T application, or 1.5SMC7.5AHE3/57T equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 75 °C/W), polarity marking convention, and real-world use context for industrial and automotive transient suppression design.
Technical Context
This unidirectional TVS diode operates by avalanche breakdown to clamp transient overvoltages above its VWM threshold while maintaining low leakage (<500 μA at 6.40 V). Its glass-passivated junction ensures stable performance under repetitive surge stress, and its 10/1000 μs waveform rating reflects industry-standard lightning and inductive-switching immunity testing.
The device is rated for -65 °C to +150 °C operating junction temperature, meets MSL Level 1 per J-STD-020, and supports automated placement due to its low-profile SMC package. The cathode band marking enables unambiguous polarity identification during PCB assembly and field service.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 6.40 V - Maximum continuous reverse voltage before significant conduction begins; defines safe operating margin below clamping threshold. |
| VBR (Breakdown) | 7.13–7.88 V at 10 mA - Verified avalanche onset range; ensures predictable turn-on behavior across production lots. |
| VC (Clamping) | 11.3 V at 133 A - Peak voltage seen by protected circuit during 10/1000 μs transient; critical for IC-level voltage tolerance compliance. |
| PPPM | 1500 W - Peak pulse power handling capacity; enables protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 12 V lines. |
| IPPM | 133 A - Maximum non-repetitive surge current; determines minimum trace width and fuse coordination in front-end protection circuits. |
| TJ max. | +150 °C - Maximum junction temperature; supports operation in under-hood automotive environments without derating. |
| RθJA | 75 °C/W - Junction-to-ambient thermal resistance on standard 8 mm × 8 mm copper pads; informs heatsinking requirements for high-duty-cycle applications. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode identified by a single band on the body end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to system ground or lower-potential rail in unidirectional protection configurations. |
| Cathode | Current exit point during reverse-biased clamping | Connected to protected signal/power line; band-marked end must align with schematic cathode symbol. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD; required for engine control, ADAS, and infotainment modules. |
| 1500 W peak pulse power | Enables single-device protection against ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 surges without cascaded stages. |
| Glass-passivated junction | Ensures long-term stability of VBR and leakage under thermal/humidity stress; eliminates parameter drift in harsh environments. |
| MSL Level 1 rating | Allows unlimited floor life and reflow compatibility up to 260 °C peak; eliminates baking requirements prior to assembly. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (<1 ns rise time), improving protection margin for high-speed interfaces. |
Applications
| Automotive Sensor Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., oxygen, pressure, temperature) from load-dump and jump-start transients in 12 V vehicle systems. IC Role / Device Role / Timing Role: Unidirectional clamping element placed between signal line and chassis ground, responding within <1 ns to limit voltage excursions. Use Value: Prevents latch-up or permanent damage to microcontrollers and analog front-ends exposed to ±100 V/50 ms load-dump events per ISO 16750-2. |
Use Scenario: Shielding digital input terminals of programmable logic controllers from inductive kickback generated by solenoid valves and relay coils in factory automation. IC Role / Device Role / Timing Role: Standoff-clamp TVS connected across input optocoupler inputs to absorb 600 W/10/1000 μs surges without degrading signal integrity. Use Value: Eliminates need for external RC snubbers and extends mean time between failures (MTBF) of I/O modules in dusty, high-vibration environments. |
| DC Power Rail Protection | Consumer USB Port Protection |
Use Scenario: Safeguarding 5 V/12 V DC-DC converter outputs and downstream PMICs against reverse-polarity connection and hot-swap surges in embedded power supplies. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main power rail, coordinated with upstream fuses to clear faults before thermal runaway occurs. Use Value: Maintains VC ≤ 11.3 V during 133 A transients, ensuring downstream regulators remain within absolute maximum ratings per JEDEC JESD78. |
Use Scenario: Adding secondary-level surge immunity to USB 2.0 data lines and VBUS pins in smart home hubs and portable docking stations subjected to ESD and cable-induced noise. IC Role / Device Role / Timing Role: Low-capacitance unidirectional TVS placed adjacent to connector to suppress ±15 kV contact ESD per IEC 61000-4-2 without signal distortion. Use Value: Achieves <0.5 pF junction capacitance (typ.) at zero bias, preserving signal rise/fall times and eye diagram integrity at 480 Mbps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.0A | Lower PPPM (600 W), higher VC (12.0 V at 53.3 A), SMB package (smaller footprint, higher RθJA). | Best suited for space-constrained consumer electronics where 600 W surge margin suffices and thermal mass is limited. | Select when board area is premium and surge threat level is Class 2 (IEC 61000-4-5 1 kV/42 Ω); not recommended for automotive AEC-Q101-critical designs. |
| 1.5KE7.5A | Through-hole DO-201 package, identical VWM/VBR/VC, but slower response and no AEC-Q101 qualification. | Used in legacy industrial power supplies and repair replacements where manual assembly and cost dominate over reliability certification. | Choose only for non-automotive, non-automated production; lacks MSL Level 1 and automotive qualification needed for new designs. |
Compared with SMBJ7.0A and 1.5KE7.5A, the 1.5SMC7.5AHE3/57T uniquely combines AEC-Q101 qualification, 1500 W surge capacity, and SMC package manufacturability - making it the only option among the three qualified for next-generation automotive ECUs requiring zero rework risk and full process traceability.
Availability
1.5SMC7.5AHE3/57T is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC input stages, DC power rail protection, and USB interface hardening requiring stable component supply, full traceability, and AEC-Q101 compliance.
Supply support for 1.5SMC7.5AHE3/57T 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 high-reliability diodes, rectifiers, and protection devices for automotive, industrial, and computing markets.
The 1.5SMC Series was engineered specifically for surface-mount transient suppression in harsh-environment applications, emphasizing AEC-Q101 qualification, repeatable clamping performance, and automated assembly compatibility.
FAQ
What is the clamping voltage of the 1.5SMC7.5AHE3/57T under maximum surge conditions?
The 1.5SMC7.5AHE3/57T exhibits a maximum clamping voltage (VC) of 11.3 V when subjected to its rated 133 A peak pulse current with a 10/1000 μs waveform. This value is measured per Fig. 1 and Fig. 3 of Vishay document 88303 and represents the upper bound of voltage seen by protected circuitry during worst-case transient events - critical for verifying compatibility with downstream IC absolute maximum ratings.
Is the 1.5SMC7.5AHE3/57T qualified for automotive applications?
Yes, the 1.5SMC7.5AHE3/57T carries AEC-Q101 qualification, confirmed by its HE3 suffix and documentation in Vishay's 1.5SMC Series datasheet (Rev. 09-Mar-2026, Doc. #88303). This qualification covers stress tests including temperature cycling, high-temperature reverse bias (HTRB), and ESD, making the 1.5SMC7.5AHE3/57T suitable for engine control units, ADAS sensors, and body electronics in passenger vehicles.
How does the 1.5SMC7.5AHE3/57T differ from the standard 1.5SMC7.5A variant?
The 1.5SMC7.5AHE3/57T differs from the base 1.5SMC7.5A by incorporating AEC-Q101 qualification (denoted by "HE3"), RoHS compliance, and packaging in 7" tape-and-reel (57T). Electrically, both share identical VWM, VBR, VC, and PPPM specifications - but only the 1.5SMC7.5AHE3/57T is approved for automotive production use per manufacturer documentation.
What is the thermal resistance of the 1.5SMC7.5AHE3/57T, and how does it affect layout?
The 1.5SMC7.5AHE3/57T has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. This value assumes standard PCB layout per Vishay's recommended pad dimensions; reducing pad area increases RθJA, potentially limiting surge repetition rate or requiring derating above 25 °C ambient.
Does the 1.5SMC7.5AHE3/57T have polarity marking, and how is it oriented on the PCB?
Yes, the 1.5SMC7.5AHE3/57T uses a cathode band marking on one end of the SMC (DO-214AB) package to indicate polarity. During PCB layout, the banded end must connect to the signal or power line being protected, while the opposite (unmarked) end connects to ground - ensuring correct unidirectional clamping action and preventing forward conduction during normal operation.
1.5SMC7.5AHE3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- 1.5SMC, 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):
- 133A
- 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 (SMCJ)
1.5SMC7.5AHE3/57T FAQ
1.How can I place an order for 1.5SMC7.5AHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC7.5AHE3/57T 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 1.5SMC7.5AHE3/57T reliable?
The price and inventory of 1.5SMC7.5AHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC7.5AHE3/57T is usually 5 days.
3.What payment methods are accepted for 1.5SMC7.5AHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC7.5AHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC7.5AHE3/57T?
1.5SMC7.5AHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC7.5AHE3/57T 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 1.5SMC7.5AHE3/57T?
For technical support, including 1.5SMC7.5AHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC7.5AHE3/57T requirements.
6.How does Aetrix verify that 1.5SMC7.5AHE3/57T is sourced from the original manufacturer or authorized distributors?
All 1.5SMC7.5AHE3/57T 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 1.5SMC7.5AHE3/57T meets industry standards.
7.What is the process for return or replacement of 1.5SMC7.5AHE3/57T?
All 1.5SMC7.5AHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC7.5AHE3/57T, 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 1.5SMC7.5AHE3/57T part is unused and in its original packaging.
Return procedure for 1.5SMC7.5AHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC7.5AHE3/57T Tags
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