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Vishay General Semiconductor - Diodes Division 1.5SMC7.5AHE3_A/I
- Part No.:
- 1.5SMC7.5AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC7.5AHE3_A/I.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:5,858
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Product details
Overview
1.5SMC7.5AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping voltage transients on power and signal lines. It features 7.13 V to 7.88 V breakdown voltage (VBR) at 10 mA, 6.40 V maximum stand-off voltage (VWM), 11.3 V clamping voltage (VC) at 133 A peak pulse current, and 1500 W peak pulse power capability with 10/1000 μs waveform - used for protecting automotive sensor interfaces and industrial I/O circuits.
For engineers reviewing the 1.5SMC7.5AHE3_A/I datasheet, 1.5SMC7.5AHE3_A/I pinout, 1.5SMC7.5AHE3_A/I application, or 1.5SMC7.5AHE3_A/I equivalent, key selection criteria include its AEC-Q101 qualification, low 0.061 %/°C VBR temperature coefficient, 1000 μA max reverse leakage at VWM, RoHS-compliant matte tin terminals, and MSL level 1 moisture sensitivity rating.
Technical Context
This unidirectional TVS diode operates by avalanche breakdown to clamp transient overvoltages above its stand-off voltage while maintaining low leakage below VWM. Its glass-passivated junction ensures stable breakdown characteristics and fast response time (<1 ns), enabling protection of sensitive downstream components such as microcontrollers and MOSFET gate drivers.
The device is rated for 150 °C maximum junction temperature and derates linearly above 25 °C ambient, with thermal resistance of 75 °C/W (junction-to-ambient) on standard 8.0 mm × 8.0 mm copper pads. Its 200 A non-repetitive forward surge rating supports robust handling of inductive switching events in automotive and industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.13 V / 7.88 V at 10 mA - defines precise avalanche initiation threshold for reliable overvoltage triggering |
| VWM | 6.40 V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPPM | 11.3 V at 133 A - clamped voltage during 1500 W transient, limiting stress on protected ICs |
| ID @ VWM | ≤1000 μA - ensures minimal power loss and signal integrity degradation in standby |
| PPPM | 1500 W (10/1000 μs) - sustains high-energy surges from lightning or load dump without failure |
| TJ max | 150 °C - enables operation in under-hood automotive and high-temperature industrial enclosures |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile case with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. Cathode indicated by band; polarity-critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to ground or lower-potential rail in clamping configuration |
| Cathode | Current exit terminal during forward conduction; marked with band | Connected to protected line (e.g., CAN_H, 12 V supply) to shunt transients to ground |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS sensor modules |
| 1500 W peak pulse power | Withstands ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 surge events without degradation |
| Glass passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without preconditioning or baking |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ESD, relay bounce) |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine bay environments exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor output and MCU ADC input to clamp transients before they reach precision front-end circuitry. Use Value: Limits clamped voltage to 11.3 V, preventing damage to 5 V-tolerant ADC inputs while maintaining <1000 μA leakage at 6.4 V nominal supply. |
Use Scenario: Safeguarding 24 V digital input channels on programmable logic controllers against field-wiring induced surges and inductive kickback. IC Role / Device Role / Timing Role: Standoff-connected TVS on each input channel, referenced to common ground, activated only during overvoltage events. Use Value: Absorbs 1500 W pulses per IEC 61000-4-5 Level 4 without latch-up, preserving channel isolation and system uptime. |
| Consumer Power Adapter Input | Telecom Line Interface |
Use Scenario: Secondary-side transient suppression on 5 V/12 V outputs of wall adapters subjected to mains-borne noise and capacitor discharge events. IC Role / Device Role / Timing Role: Unidirectional clamping device placed after DC-DC converter output filter, before USB or barrel-jack connector. Use Value: Clamps to 11.3 V within nanoseconds, preventing overvoltage damage to connected devices while adding negligible quiescent load. |
Use Scenario: Protection of RS-485 transceiver pins in base station backhaul equipment exposed to lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: TVS diode installed differential-mode across A/B lines and common-mode to ground at connector interface. Use Value: Withstands repetitive 10/1000 μs surges up to 133 A, meeting Telcordia GR-1089-CORE requirements for network edge equipment. |
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), smaller SMB package (DO-214AA), VBR = 7.78–8.6 V, VC = 12.0 V @ 50 A | Targeted at space-constrained consumer electronics; insufficient for automotive load dump compliance | Select when board area is critical and surge energy is ≤600 W; verify layout thermal relief for 6.5 W steady-state dissipation |
| 1.5KE7.5A | Through-hole TO-204AE (DO-41), same VBR/VC specs but higher RθJA (100 °C/W), no AEC-Q101 qualification | Used in legacy industrial power supplies where manual assembly and serviceability are prioritized over AEC compliance | Choose only for prototyping or non-automotive repair scenarios; not suitable for new automotive designs requiring PPAP documentation |
Compared with 1.5SMC7.5AHE3_A/I, SMBJ7.0A offers smaller footprint but sacrifices 60% peak power handling and automotive qualification, while 1.5KE7.5A retains identical electrical clamping performance but lacks surface-mount compatibility and AEC-Q101 validation required for modern vehicle ECUs.
Availability
1.5SMC7.5AHE3_A/I is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, telecom line interfaces, and consumer power adapter designs requiring stable component supply with full traceability and AEC-Q101 assurance.
Supply support for 1.5SMC7.5AHE3_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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The 1.5SMC Series was developed to deliver high-power, surface-mount TVS protection for automotive, industrial, and telecom systems where AEC-Q101 compliance, low clamping voltage, and robust surge endurance are mandatory design requirements.
FAQ
What is the clamping voltage of the 1.5SMC7.5AHE3_A/I under maximum rated surge current?
The 1.5SMC7.5AHE3_A/I has a maximum clamping voltage (VC) of 11.3 V when subjected to its peak pulse current (IPPM) of 133 A, measured using the standardized 10/1000 μs double-exponential waveform. This value ensures protected downstream components-such as 5 V or 3.3 V logic interfaces-remain within safe operating limits during transient events. The 1.5SMC7.5AHE3_A/I maintains this clamping performance across its qualified temperature range of –65 °C to +150 °C.
Is the 1.5SMC7.5AHE3_A/I suitable for automotive applications?
Yes, the 1.5SMC7.5AHE3_A/I is AEC-Q101 qualified and explicitly designated for automotive use via its "HE3" suffix and revision-coded "_A" grade. It meets stringent requirements for temperature cycling, high-temperature reverse bias, and mechanical shock, making it appropriate for engine control units, body electronics, and ADAS sensor modules. The 1.5SMC7.5AHE3_A/I is also RoHS-compliant and rated for MSL Level 1, supporting lead-free reflow assembly in automotive manufacturing lines.
How does the 1.5SMC7.5AHE3_A/I differ from bidirectional TVS diodes like 1.5SMC7.5CA?
The 1.5SMC7.5AHE3_A/I is unidirectional and functions only in reverse-bias avalanche mode, with polarity-sensitive cathode marking; it blocks forward current beyond ~3.5 V. In contrast, 1.5SMC7.5CA is bidirectional and symmetrical, clamping transients in both directions-ideal for AC lines or differential data buses. The 1.5SMC7.5AHE3_A/I offers tighter VBR tolerance (7.13–7.88 V vs. ±5% for CA variants) and is optimized for DC rail protection where polarity is fixed and leakage must be minimized.
What is the maximum reverse leakage current specified for the 1.5SMC7.5AHE3_A/I at its stand-off voltage?
The 1.5SMC7.5AHE3_A/I specifies a maximum reverse leakage current (ID) of 1000 μA at its rated stand-off voltage (VWM) of 6.40 V and ambient temperature of 25 °C. This low leakage ensures minimal power drain in battery-powered or always-on systems and preserves signal integrity on high-impedance sensor lines. Leakage remains within specification up to +125 °C, with typical values well below 500 μA at room temperature.
Can the 1.5SMC7.5AHE3_A/I be used in parallel for higher surge current handling?
No, the 1.5SMC7.5AHE3_A/I is not recommended for parallel operation due to inherent VBR mismatch (±5% tolerance) that causes uneven current sharing and potential thermal runaway. For higher surge capacity, select a single higher-rated device such as 1.5SMC12AHE3_A/I (16.7 V clamping) or use a TVS array with matched characteristics. The 1.5SMC7.5AHE3_A/I is characterized and qualified as a standalone component; parallel use voids AEC-Q101 compliance and violates Vishay's application guidance.
1.5SMC7.5AHE3_A/I 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:
- -
- 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_A/I FAQ
1.How can I place an order for 1.5SMC7.5AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC7.5AHE3_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 1.5SMC7.5AHE3_A/I reliable?
The price and inventory of 1.5SMC7.5AHE3_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 1.5SMC7.5AHE3_A/I is usually 5 days.
3.What payment methods are accepted for 1.5SMC7.5AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC7.5AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC7.5AHE3_A/I?
1.5SMC7.5AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC7.5AHE3_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 1.5SMC7.5AHE3_A/I?
For technical support, including 1.5SMC7.5AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC7.5AHE3_A/I requirements.
6.How does Aetrix verify that 1.5SMC7.5AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All 1.5SMC7.5AHE3_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 1.5SMC7.5AHE3_A/I meets industry standards.
7.What is the process for return or replacement of 1.5SMC7.5AHE3_A/I?
All 1.5SMC7.5AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC7.5AHE3_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 1.5SMC7.5AHE3_A/I part is unused and in its original packaging.
Return procedure for 1.5SMC7.5AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC7.5AHE3_A/I Tags
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