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Vishay General Semiconductor - Diodes Division 1.5SMC8.2CAHM3/H
- Part No.:
- 1.5SMC8.2CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC8.2CAHM3/H.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,954
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Product details
Overview
1.5SMC8.2CAHM3/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 8.2 V breakdown voltage (VBR = 7.79–8.61 V at 10 mA), 7.02 V stand-off voltage (VWM), clamps to ≤12.1 V at 200 A peak pulse current (10/1000 μs), and delivers 1500 W peak pulse power. It is AEC-Q101 qualified, halogen-free, and RoHS-compliant - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the 1.5SMC8.2CAHM3/H datasheet, 1.5SMC8.2CAHM3/H pinout, 1.5SMC8.2CAHM3/H application, or 1.5SMC8.2CAHM3/H equivalent, key selection criteria include bidirectional clamping behavior, MSL Level 1 moisture sensitivity, 1500 W surge capability with low clamping voltage, thermal resistance (RθJA = 75 °C/W), and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
The 1.5SMC8.2CAHM3/H operates as a bidirectional avalanche diode, symmetrically clamping transient voltages above ±12.1 V while maintaining <100 μA reverse leakage at 7.02 V. Its glass-passivated junction ensures stable breakdown characteristics and fast response (<1 ns) to ESD and lightning-induced surges.
Designed for SMC (DO-214AB) surface-mount assembly, it supports automated placement and withstands reflow up to 260 °C (MSL Level 1). The device sustains repetitive 10/1000 μs transients at 0.01% duty cycle and derates linearly above 25 °C ambient per Fig. 2 in the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.79 V / 8.61 V at 10 mA - defines precise avalanche initiation threshold in both directions |
| VWM | 7.02 V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPPM | ≤12.1 V at 200 A (10/1000 μs) - clamping voltage limiting stress on downstream ICs or MOSFETs |
| PPPM | 1500 W - peak surge power handling capacity under standardized lightning/surge waveform |
| IPPM | 200 A - maximum non-repetitive surge current the device safely clamps without failure |
| TJ max | +150 °C - maximum junction temperature enabling operation in under-hood automotive environments |
| MSL Level | Level 1 (J-STD-020) - no dry-pack or bake requirement prior to reflow soldering |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, bidirectional - no polarity marking; symmetrical terminal configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode / Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity - fully symmetrical conduction |
| Terminal 2 | Anode / Cathode (bidirectional) | Paired terminal completing the bidirectional path - no functional distinction between terminals |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| AEC-Q101 qualification | Validated for automotive applications including engine control modules and ADAS sensor interfaces |
| Halogen-free & RoHS-compliant (HM3 suffix) | Meets global environmental compliance requirements for industrial and automotive supply chains |
| 1500 W peak pulse power (10/1000 μs) | Withstands IEC 61000-4-5 Level 4 surge events (4 kV line-to-line, 2 kV line-to-ground) |
| Low clamping ratio (VC/VBR ≈ 1.48) | Minimizes voltage overshoot during transients, reducing risk of latch-up or gate oxide damage |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role: Bidirectional TVS placed across differential signal pair or supply rail to clamp transients before they reach sensitive ASICs. Use Value: Prevents field failures caused by >100 V load dump spikes by limiting voltage to ≤12.1 V at 200 A, preserving sensor accuracy and MCU integrity. |
Use Scenario: Safeguarding 24 V DC digital input modules in programmable logic controllers against inductive switching surges from solenoids and contactors. IC Role / Device Role: Primary overvoltage clamp on field-side input terminals, mounted directly at connector entry point. Use Value: Absorbs 1500 W surge energy without degradation, enabling reliable operation in factory-floor environments with frequent relay switching noise. |
| Telecom Line Interface | Consumer Power Adapter Input |
|
Use Scenario: Protecting Ethernet PHY interface circuits and PoE injectors from lightning-induced surges on twisted-pair cabling. IC Role / Device Role: Secondary-level TVS on data lines after gas discharge tube (GDT) primary protection. Use Value: Fast sub-nanosecond response complements slower GDTs, ensuring low-voltage clamping (<12.1 V) during fast-rising transients. |
Use Scenario: Input-stage surge suppression in wall-mounted AC/DC adapters for smart home devices subjected to mains-borne transients. IC Role / Device Role: Bidirectional clamp across bridge rectifier output or bulk capacitor input to suppress differential-mode surges. Use Value: Halogen-free HM3 construction meets UL/IEC safety standards while delivering 1500 W surge immunity without derating at 85 °C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0CA | Lower peak power (600 W), same SMC footprint but lower IPPM (100 A) and higher VC (12.8 V) | Rated for lighter-duty consumer electronics; insufficient for automotive load dump compliance | Select only when surge energy is limited to ≤600 W and AEC-Q101 is not required |
| 1.5KE8.2CA | Through-hole DO-15 package, identical electrical specs but incompatible with SMT production | Used in legacy designs or prototyping where manual assembly or socketing is acceptable | Choose only if board redesign for SMT is not feasible; otherwise avoid due to assembly and reliability penalties |
Compared with SMBJ8.0CA and 1.5KE8.2CA, the 1.5SMC8.2CAHM3/H uniquely combines AEC-Q101 qualification, 1500 W surge rating, SMC surface-mount compatibility, and halogen-free construction - making it the only option meeting full automotive production requirements without layout or process compromise.
Availability
1.5SMC8.2CAHM3/H is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC I/O protection, and telecom line interface applications requiring stable component supply, long-term lifecycle support, and AEC-Q101 traceability.
Supply support for 1.5SMC8.2CAHM3/H 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 high-reliability, automotive-qualified components.
The 1.5SMC Series was engineered specifically for high-energy transient suppression in space-constrained SMT layouts, targeting automotive, industrial, and telecom systems where AEC-Q101 compliance and 1500 W surge capability are mandatory.
FAQ
What does the "HM3" suffix indicate in 1.5SMC8.2CAHM3/H?
The "HM3" suffix in 1.5SMC8.2CAHM3/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It confirms the device meets automotive reliability standards and environmental regulations, distinguishing it from commercial-grade "M3" or non-automotive "E3" variants. This suffix is critical for qualifying 1.5SMC8.2CAHM3/H in Tier 1 automotive supply chains.
Is 1.5SMC8.2CAHM3/H unidirectional or bidirectional?
The 1.5SMC8.2CAHM3/H is a bidirectional TVS diode, indicated by the "CA" suffix. It provides symmetrical clamping in both polarities - essential for protecting AC-coupled lines, differential buses like CAN or RS-485, and floating power rails. Unlike unidirectional "A" variants, 1.5SMC8.2CAHM3/H has no cathode marking and functions identically regardless of voltage polarity.
What is the maximum clamping voltage of 1.5SMC8.2CAHM3/H at rated surge current?
The maximum clamping voltage (VC) of 1.5SMC8.2CAHM3/H is 12.1 V at 200 A peak pulse current (10/1000 μs waveform), as specified in the Vishay datasheet. This value represents the upper limit of voltage seen by protected circuitry during worst-case surge events and is critical for ensuring downstream ICs remain within absolute maximum ratings.
Does 1.5SMC8.2CAHM3/H require special handling for moisture sensitivity?
No - 1.5SMC8.2CAHM3/H is rated MSL Level 1 per J-STD-020, meaning it may be stored indefinitely at ambient conditions and subjected to standard reflow profiles (peak 260 °C) without baking or dry-pack requirements. This simplifies manufacturing logistics and eliminates moisture-related yield loss during SMT assembly of 1.5SMC8.2CAHM3/H.
Can 1.5SMC8.2CAHM3/H replace 1.5SMC8.2A in an existing design?
No - 1.5SMC8.2CAHM3/H is bidirectional ("CA"), whereas 1.5SMC8.2A is unidirectional ("A"). Substituting them requires verifying circuit polarity and clamping behavior: using 1.5SMC8.2CAHM3/H in a unidirectional application may cause unintended conduction during normal forward bias. Always validate layout, grounding, and system-level surge paths before replacing 1.5SMC8.2A with 1.5SMC8.2CAHM3/H.
1.5SMC8.2CAHM3/H 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:
- -
- Bidirectional Channels:
- 1
- 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)
1.5SMC8.2CAHM3/H FAQ
1.How can I place an order for 1.5SMC8.2CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC8.2CAHM3/H 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 1.5SMC8.2CAHM3/H reliable?
The price and inventory of 1.5SMC8.2CAHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC8.2CAHM3/H is usually 5 days.
3.What payment methods are accepted for 1.5SMC8.2CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC8.2CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC8.2CAHM3/H?
1.5SMC8.2CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC8.2CAHM3/H 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 1.5SMC8.2CAHM3/H?
For technical support, including 1.5SMC8.2CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC8.2CAHM3/H requirements.
6.How does Aetrix verify that 1.5SMC8.2CAHM3/H is sourced from the original manufacturer or authorized distributors?
All 1.5SMC8.2CAHM3/H 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 1.5SMC8.2CAHM3/H meets industry standards.
7.What is the process for return or replacement of 1.5SMC8.2CAHM3/H?
All 1.5SMC8.2CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC8.2CAHM3/H, 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 1.5SMC8.2CAHM3/H part is unused and in its original packaging.
Return procedure for 1.5SMC8.2CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC8.2CAHM3/H Tags
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