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Vishay General Semiconductor - Diodes Division 1.5SMC8.2AHM3/I
- Part No.:
- 1.5SMC8.2AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC8.2AHM3/I.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,048
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Product details
Overview
1.5SMC8.2AHM3/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMC (DO-214AB) package, designed for robust overvoltage protection of sensitive electronics. It features a 7.79 V minimum breakdown voltage (VBR), 7.02 V maximum stand-off voltage (VWM), 12.1 V clamping voltage (VC) at 200 A peak pulse current, and 1500 W peak pulse power capability with a 10/1000 µs waveform - ideal for protecting MOSFETs and sensor signal lines in automotive and industrial power supplies.
For engineers reviewing the 1.5SMC8.2AHM3/I datasheet, 1.5SMC8.2AHM3/I pinout, 1.5SMC8.2AHM3/I application, or 1.5SMC8.2AHM3/I equivalent, key selection criteria include its AEC-Q101 qualification, halogen-free RoHS-compliant construction (HM3 suffix), low incremental surge resistance, fast response time, and compatibility with automated SMT placement on standard PCB layouts.
Technical Context
This TVS diode operates as a unidirectional clamping device, leveraging a glass-passivated silicon junction to provide precise reverse-biased transient suppression. Its clamping action begins at VBR ≥ 7.79 V and limits induced surges to ≤12.1 V at 200 A, enabling reliable protection of downstream 5 V–12 V logic and analog circuitry without forward conduction during normal operation.
The device is rated for continuous power dissipation of 6.5 W on an infinite heatsink at 50 °C and supports peak forward surge current up to 200 A (8.3 ms half-sine). Thermal resistance is 75 °C/W (junction-to-ambient) and 15 °C/W (junction-to-leads), confirming suitability for compact, thermally constrained board-level designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min) | 7.79 V - Ensures reliable triggering above nominal 5 V–7 V rail voltages without false clamping |
| VWM | 7.02 V - Maximum steady-state reverse voltage before leakage exceeds 200 μA; compatible with 5 V systems |
| VC @ IPPM | 12.1 V - Clamped voltage at 200 A peak pulse; protects 12 V logic inputs and gate drivers |
| PPPM | 1500 W - Withstands high-energy transients (e.g., ISO 7637-2 Pulse 1/2a/5a) in automotive ECUs |
| IPPM | 200 A - Peak pulse current rating with 10/1000 µs waveform; validated per IEC 61000-4-5 |
| TJ max | +150 °C - Enables operation in under-hood automotive environments and industrial motor drives |
| Package | SMC (DO-214AB) - Standardized 7.11 mm × 6.22 mm footprint with matte tin-plated leads, MSL Level 1 |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, unidirectional polarity indicated by cathode band. Dimensions: 7.11 mm × 6.22 mm × 2.62 mm (L × W × H); terminals are matte tin-plated, solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during clamping | Connected to protected line (e.g., signal input or power rail); must be routed with low-inductance trace |
| Cathode | Current exit point during clamping | Connected to ground or lower-potential reference; requires low-impedance return path to handle 200 A surge |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability (temperature cycling, HTRB, ESD, mechanical shock) |
| Halogen-free & RoHS-compliant (HM3) | Meets EU Directive 2011/65/EU and JEDEC J-STD-020 MSL Level 1 handling requirements |
| 1500 W peak pulse power (10/1000 µs) | Provides immunity against severe load-dump and inductive switching transients in 12 V systems |
| Low clamping ratio (VC/VBR ≈ 1.55) | Minimizes stress on protected ICs by limiting overshoot while maintaining margin above VWM |
| Fast response time (<1 ns) | Clamps before transient energy couples into sensitive CMOS inputs or gate oxide layers |
Applications
| Automotive Power Supply Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V microcontroller power rails and CAN transceiver VCC inputs from load-dump transients (ISO 7637-2 Pulse 5a). IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between battery feed and LDO input. Use Value: Limits voltage to ≤12.1 V during 200 A surges, preventing LDO latch-up and MCU brownout reset. |
Use Scenario: Shielding 4–20 mA current-loop sensor outputs from ESD and field-induced surges in factory automation. IC Role / Device Role / Timing Role: Reverse-biased TVS across output terminals to shunt transients to ground. Use Value: Maintains signal integrity below 12.1 V clamping threshold while adding <1 pF capacitance at 0 V bias. |
| Consumer Power Adapter Input Stage | Telecom DC Power Interface |
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters feeding USB-C PD controllers. IC Role / Device Role / Timing Role: Standoff-rated TVS on 5 V/9 V/15 V output rails to absorb flyback spikes. Use Value: Withstands repetitive 1500 W pulses without degradation, ensuring long-term adapter reliability. |
Use Scenario: Protecting -48 V telecom power distribution boards from lightning-induced surges on backplane feeds. IC Role / Device Role / Timing Role: Unidirectional TVS on negative rail with cathode tied to system ground. Use Value: Delivers 12.1 V clamping referenced to ground, enabling safe interface with -48 V tolerant PHY ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0A | Lower PPPM (600 W), same VWM (6.4 V), smaller SMB package (DO-214AA) | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a compliance | Select when board space is constrained and surge energy is ≤600 W (e.g., consumer USB ports) |
| 1.5KE8.2A | Through-hole TO-204AE (DO-41) package, identical VBR/VC, higher RθJA (100 °C/W) | Requires manual assembly; less suitable for high-volume SMT production or thermal-limited layouts | Choose only for legacy through-hole designs or prototyping where reflow compatibility is not required |
Compared with SMBJ8.0A and 1.5KE8.2A, the 1.5SMC8.2AHM3/I uniquely combines AEC-Q101 qualification, halogen-free compliance, 1500 W surge capacity, and SMC package scalability - making it the preferred choice for automotive and industrial SMT production where reliability, regulatory alignment, and high-energy immunity are mandatory.
Availability
1.5SMC8.2AHM3/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom power distribution systems requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for 1.5SMC8.2AHM3/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, and protection devices with emphasis on reliability, efficiency, and application-specific performance.
The 1.5SMC Series was engineered for high-power, surface-mount transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where AEC-Q101 validation, low clamping voltage, and repeatable surge endurance are critical.
FAQ
What is the clamping voltage of the 1.5SMC8.2AHM3/I at its rated peak pulse current?
The 1.5SMC8.2AHM3/I has a maximum clamping voltage (VC) of 12.1 V at its rated peak pulse current (IPPM) of 200 A, measured using the standardized 10/1000 µs double-exponential waveform. This value ensures protected circuits remain within safe operating limits during high-energy transients, and is verified per IEC 61000-4-5 test conditions.
Is the 1.5SMC8.2AHM3/I qualified for automotive applications?
Yes, the 1.5SMC8.2AHM3/I carries the HM3 suffix, indicating it is halogen-free, RoHS-compliant, and AEC-Q101 qualified. It undergoes rigorous stress testing including temperature cycling, high-temperature reverse bias (HTRB), and mechanical shock - meeting the reliability requirements for under-hood and body-control module applications.
What does the "HM3" suffix mean in 1.5SMC8.2AHM3/I?
The "HM3" suffix in 1.5SMC8.2AHM3/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 JEDEC J-STD-020 MSL Level 1, whisker resistance (JESD 201 Class 2), and automotive reliability standards.
Can the 1.5SMC8.2AHM3/I be used in bidirectional configurations?
No, the 1.5SMC8.2AHM3/I is a unidirectional TVS diode, identified by its cathode band marking. For bidirectional operation, Vishay specifies part numbers ending in "CA" (e.g., 1.5SMC8.2CA). Using the 1.5SMC8.2AHM3/I in reverse-biased configurations outside its specified polarity risks failure or inadequate clamping.
What is the thermal resistance of the 1.5SMC8.2AHM3/I, and how does it affect layout design?
The 1.5SMC8.2AHM3/I has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and junction-to-leads (RθJL) of 15 °C/W. To maintain safe junction temperatures under sustained power dissipation, PCB layout must use minimum 8.0 mm × 8.0 mm copper pads per terminal - as specified in Vishay's mounting recommendations for optimal heat spreading.
1.5SMC8.2AHM3/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:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 7.02V
- Voltage - Breakdown (Min):
- 7.79V
- Voltage - Clamping (Max) @ Ipp:
- 12.1V
- Current - Peak Pulse (10/1000µs):
- 124A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
1.5SMC8.2AHM3/I FAQ
1.How can I place an order for 1.5SMC8.2AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC8.2AHM3/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 1.5SMC8.2AHM3/I reliable?
The price and inventory of 1.5SMC8.2AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC8.2AHM3/I is usually 5 days.
3.What payment methods are accepted for 1.5SMC8.2AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC8.2AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC8.2AHM3/I?
1.5SMC8.2AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC8.2AHM3/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 1.5SMC8.2AHM3/I?
For technical support, including 1.5SMC8.2AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC8.2AHM3/I requirements.
6.How does Aetrix verify that 1.5SMC8.2AHM3/I is sourced from the original manufacturer or authorized distributors?
All 1.5SMC8.2AHM3/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 1.5SMC8.2AHM3/I meets industry standards.
7.What is the process for return or replacement of 1.5SMC8.2AHM3/I?
All 1.5SMC8.2AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC8.2AHM3/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 1.5SMC8.2AHM3/I part is unused and in its original packaging.
Return procedure for 1.5SMC8.2AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC8.2AHM3/I Tags
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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