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Vishay General Semiconductor - Diodes Division 1.5SMC7.5A-E3/57T
- Part No.:
- 1.5SMC7.5A-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC7.5A-E3/57T.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:1,425
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Product details
Overview
1.5SMC7.5A-E3/57T from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 7.13 V minimum breakdown voltage (VBR), 6.40 V standoff voltage (VWM), 11.3 V clamping voltage (VC) at 133 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive sensor interfaces, industrial I/O modules, and DC power rail protection.
For engineers reviewing the 1.5SMC7.5A-E3/57T datasheet, 1.5SMC7.5A-E3/57T pinout, 1.5SMC7.5A-E3/57T application, or 1.5SMC7.5A-E3/57T equivalent, key selection criteria include unidirectional polarity, SMC (DO-214AB) package compatibility, 150 °C max junction temperature, low 0.061 %/°C VBR temperature coefficient, and AEC-Q101 qualification readiness via HE3 suffix variants.
Technical Context
This TVS diode operates as a clamping device that enters avalanche conduction when reverse voltage exceeds its 7.13–7.88 V breakdown range at 10 mA test current. Its glass-passivated junction ensures stable leakage performance (<500 µA at 6.40 V) and fast response time (<1.0 ns), enabling suppression of ESD, lightning-induced transients, and inductive switching spikes before sensitive downstream circuitry is damaged.
The device is rated for 200 A non-repetitive forward surge current (8.3 ms half-sine), supports 6.5 W steady-state power dissipation on infinite heatsink at 50 °C, and exhibits 75 °C/W junction-to-ambient thermal resistance - requiring careful PCB copper pad design (0.31" × 0.31") to sustain repetitive 1500 W pulses at 0.01% duty cycle.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.13 V / 7.88 V at 10 mA - defines reliable avalanche initiation threshold under production tolerance |
| VWM | 6.40 V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPPM | 11.3 V at 133 A - clamping voltage limiting transient energy delivered to protected IC or MOSFET |
| PPPM | 1500 W (10/1000 µs) - peak transient power handling capacity for surge immunity compliance |
| IPPM | 133 A - maximum non-repetitive peak pulse current the device safely clamps without failure |
| TJ max | +150 °C - maximum junction temperature defining thermal derating envelope for sustained operation |
| Leakage @ VWM | ≤500 µA - ensures minimal standby power loss and signal integrity in high-impedance circuits |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, RoHS-compliant, MSL Level 1 (260 °C peak reflow). Cathode indicated by band; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Reverse-biased terminal | Connected to protected line; conducts during overvoltage to shunt current to ground |
| Anode (unbanded end) | Reference/ground terminal | Typically tied to system ground or low-impedance return path for effective clamping |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Enables compliance with IEC 61000-4-5 Level 4 (4 kV surge) when properly mounted on 8 mm × 8 mm copper pads |
| Glass passivated junction | Ensures long-term stability of VBR and leakage under thermal cycling and humidity stress |
| Low incremental surge resistance | Minimizes VC overshoot during fast transients, improving protection margin for 3.3 V/5 V logic |
| AEC-Q101 qualification option | HE3/HM3 variants support automotive-grade reliability requirements for engine control and ADAS sensors |
| MSL Level 1 rating | Allows standard SMT reflow without baking or special handling, reducing manufacturing cost and risk |
Applications
| Automotive Sensor Interface | Industrial PLC Digital Input |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between sensor line and ground, absorbing transients before they reach the ASIC or microcontroller input. Use Value: Maintains signal integrity under 12 V/24 V automotive supply conditions while meeting AEC-Q101 stress test requirements. |
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 overvoltage clamp on input terminal block, coordinated with series current-limiting resistor and optocoupler isolation. Use Value: Prevents false triggering and latch-up in microcontroller GPIOs during factory floor EMI events and maintenance hot-swaps. |
| DC Power Rail Protection | Consumer USB Port ESD Guard |
Use Scenario: Secondary protection on 5 V or 12 V DC-DC output rails feeding FPGAs, memory, or interface ICs in embedded systems. IC Role / Device Role / Timing Role: Fast-response shunt device triggered after primary fuse or polyfuse opens, limiting residual voltage to safe levels. Use Value: Reduces risk of catastrophic failure in power management ICs during accidental short-circuit or adapter fault conditions. |
Use Scenario: Board-level ESD protection on USB 2.0 data lines (D+/D−) and VBUS in portable audio/video devices. IC Role / Device Role / Timing Role: Low-capacitance unidirectional TVS (used with bidirectional pair) suppressing ±15 kV contact discharge per IEC 61000-4-2. Use Value: Achieves <0.5 pF junction capacitance (typ.) without compromising clamping performance, preserving signal rise/fall times. |
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 | Lower PPPM (400 W), SMA package (smaller footprint, higher RθJA = 110 °C/W) | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 | Select when space-constrained and surge threat level is ≤1 kV; verify thermal margin with reduced copper area |
| 1.5KE7.5A | Through-hole TO-204AE (DO-41), same VBR/VC, but slower response and no MSL rating | Not compatible with automated SMT assembly; requires wave solder or hand solder | Choose only for legacy through-hole designs or prototyping where reflow compatibility is not required |
Compared with SMAJ7.5A and 1.5KE7.5A, the 1.5SMC7.5A-E3/57T delivers 3.75× higher surge power handling in an MSL-1 SMT package, enabling direct integration into high-reliability automotive and industrial PCBs without layout redesign or thermal derating penalties.
Availability
1.5SMC7.5A-E3/57T is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC input conditioning, and DC power rail safeguarding requiring stable component supply across multi-year production cycles.
Supply support for 1.5SMC7.5A-E3/57T 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 optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The 1.5SMC Series was engineered for high-power, surface-mount transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where compact size, repeatable clamping, and AEC-Q101 readiness are critical.
FAQ
What is the clamping voltage of the 1.5SMC7.5A-E3/57T under maximum rated surge current?
The 1.5SMC7.5A-E3/57T has a maximum clamping voltage (VC) of 11.3 V when subjected to its rated peak pulse current of 133 A using a 10/1000 µs waveform. This value is measured per Figure 1 in the Vishay datasheet 88303 and defines the upper voltage limit imposed on protected circuitry during transient events - critical for ensuring compatibility with 3.3 V or 5 V logic thresholds.
Is the 1.5SMC7.5A-E3/57T RoHS-compliant and lead-free?
Yes, the 1.5SMC7.5A-E3/57T carries the "E3" suffix, indicating full RoHS compliance and lead-free construction per EU Directive 2011/65/EU. Its matte tin-plated terminals meet J-STD-002 and JESD 22-B102 solderability standards, and it passes JESD 201 Class 2 whisker testing - verified in Vishay document 88303, Section "Mechanical Data".
Can the 1.5SMC7.5A-E3/57T be used in bidirectional protection circuits?
No - the 1.5SMC7.5A-E3/57T is strictly unidirectional, as confirmed by its "A" suffix and cathode band marking. For bidirectional operation, Vishay specifies the "CA" variant (e.g., 1.5SMC7.5CA). Using the 1.5SMC7.5A-E3/57T in reverse-biased configurations risks permanent damage due to forward conduction during negative transients.
What is the thermal resistance and recommended PCB layout for the 1.5SMC7.5A-E3/57T?
The 1.5SMC7.5A-E3/57T 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, as specified in Vishay datasheet 88303. Deviation from this pad size increases thermal impedance and reduces safe repetitive pulse capability - especially critical above 25 °C ambient.
Does the 1.5SMC7.5A-E3/57T meet AEC-Q101 qualification?
The base 1.5SMC7.5A-E3/57T is commercial-grade and not AEC-Q101 qualified. However, Vishay offers the automotive-qualified variant 1.5SMC7.5AHE3_A (with "HE3" suffix), which shares identical electrical specs but undergoes extended stress testing per AEC-Q101. The "_A" revision code denotes qualification for the 6.8 V–220 V range, including 1.5SMC7.5AHE3_A.
1.5SMC7.5A-E3/57T 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:
- Active
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
1.5SMC7.5A-E3/57T FAQ
1.How can I place an order for 1.5SMC7.5A-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC7.5A-E3/57T 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 1.5SMC7.5A-E3/57T reliable?
The price and inventory of 1.5SMC7.5A-E3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC7.5A-E3/57T is usually 5 days.
3.What payment methods are accepted for 1.5SMC7.5A-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC7.5A-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC7.5A-E3/57T?
1.5SMC7.5A-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC7.5A-E3/57T 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 1.5SMC7.5A-E3/57T?
For technical support, including 1.5SMC7.5A-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC7.5A-E3/57T requirements.
6.How does Aetrix verify that 1.5SMC7.5A-E3/57T is sourced from the original manufacturer or authorized distributors?
All 1.5SMC7.5A-E3/57T 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 1.5SMC7.5A-E3/57T meets industry standards.
7.What is the process for return or replacement of 1.5SMC7.5A-E3/57T?
All 1.5SMC7.5A-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC7.5A-E3/57T, 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 1.5SMC7.5A-E3/57T part is unused and in its original packaging.
Return procedure for 1.5SMC7.5A-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC7.5A-E3/57T Tags
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