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Vishay General Semiconductor - Diodes Division 1.5SMC82AHM3_A/H
- Part No.:
- 1.5SMC82AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC82AHM3_A/H.pdf
- Description:
- TVS DIODE 70.1VWM 113VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,484
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Product details
Overview
1.5SMC82AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power rails and signal lines. It features a 70.1 V stand-off voltage (VWM), 77.9–86.1 V breakdown voltage (VBR) at 1 mA, 113 V maximum clamping voltage (VC) at 13.3 A peak pulse current, and 1500 W peak pulse power capability with a 10/1000 μs waveform - deployed in automotive ECUs, industrial motor drives, and telecom interface circuits.
For engineers reviewing the 1.5SMC82AHM3_A/H datasheet, 1.5SMC82AHM3_A/H pinout, 1.5SMC82AHM3_A/H application, or 1.5SMC82AHM3_A/H equivalent, key selection considerations include its AEC-Q101 qualification, halogen-free RoHS-compliant HM3 suffix, SMC (DO-214AB) package thermal performance (RθJA = 75 °C/W), and unidirectional polarity with cathode band marking.
Technical Context
This TVS diode operates as a clamping device that transitions from high-impedance standby to low-impedance conduction when reverse voltage exceeds VBR, limiting transient energy to protected downstream circuitry. Its glass-passivated junction ensures stable breakdown characteristics and fast response time (<1 ns), while the SMC package supports automated placement and meets MSL level 1 per J-STD-020.
The 1.5SMC82AHM3_A/H is rated for -65 °C to +150 °C operating junction temperature, delivers 6.5 W steady-state power dissipation on infinite heatsink at 50 °C, and exhibits 0.105 %/°C temperature coefficient of VBR. It is not intended for continuous forward conduction but supports 200 A non-repetitive surge current (8.3 ms half-sine) in unidirectional configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 70.1 V - Maximum continuous reverse voltage before significant leakage; defines safe operating margin below clamping threshold |
| VBR (Breakdown) | 77.9–86.1 V at 1 mA - Confirmed avalanche onset range; ensures reliable triggering under ESD/lightning transients |
| VC (Clamping) | 113 V at 13.3 A (10/1000 μs) - Peak voltage seen by protected IC during worst-case surge; critical for MOSFET gate or MCU I/O survival |
| PPPM | 1500 W - Surge energy handling capacity; enables protection against IEC 61000-4-5 Level 4 (4 kV/2 Ω) events |
| IPPM | 13.3 A - Peak pulse current supported at rated clamping voltage; determines minimum trace width and PCB copper area needed |
| TJ max | +150 °C - Maximum junction temperature; allows operation in under-hood automotive environments without derating |
| RθJA | 75 °C/W - Thermal resistance junction-to-ambient; informs thermal pad design (e.g., 8 mm × 8 mm copper per terminal) |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode indicated by band; polarity critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or low-impedance return path; completes clamping loop during transient |
| Cathode | High-side connection point | Connected to protected line (e.g., 24 V rail or CAN_H); blocks normal operation, conducts during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for engine control, ADAS, and body electronics |
| Halogen-free & RoHS-compliant (HM3) | Meets environmental compliance requirements for global OEM supply chains without compromising surge robustness |
| 1500 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 surge immunity up to 4 kV open-circuit voltage in industrial and telecom applications |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., inductive switch-off), improving protection fidelity |
| MSL Level 1 (260 °C peak reflow) | Enables standard lead-free reflow assembly without pre-baking or special handling |
Applications
| Automotive Power Rail Protection | Industrial Motor Drive DC Bus |
|---|---|
Use Scenario: Protecting 24 V battery-fed microcontrollers and sensor interfaces in engine control modules from load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT and GND, clamping transients above 70.1 V to ≤113 V. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V logic supplies during ISO 16750-2 load dump events (up to 35 V, 400 ms). |
Use Scenario: Safeguarding gate drivers and current-sense amplifiers on 48–300 V DC bus lines in variable-frequency drives. IC Role / Device Role / Timing Role: Mounted across bus rails or from rail to ground to suppress switching-induced spikes from IGBT turn-off. Use Value: Limits voltage overshoot to <113 V, preserving SiC MOSFET gate oxide integrity and enabling reliable 100 kHz+ PWM operation. |
| Telecom Ethernet PHY Interface | Consumer Appliance Power Supply Input |
Use Scenario: Shielding 10/100BASE-TX PHY transceivers from induced surges on RJ45 lines in PoE-powered switches. IC Role / Device Role / Timing Role: Paired with common-mode chokes and gas discharge tubes; clamps differential-mode transients on TX+/RX+ pairs. Use Value: Maintains signal integrity below 113 V clamping level while surviving repeated 1 kV/500 Ω IEC 61000-4-5 surges. |
Use Scenario: Suppressing line-to-line and line-to-ground surges entering AC-DC power supplies in washing machines and HVAC controllers. IC Role / Device Role / Timing Role: Placed after bridge rectifier on bulk capacitor input, absorbing energy from lightning-induced grid transients. Use Value: Absorbs 1500 W peak pulses without degradation, extending electrolytic capacitor life and preventing brownout resets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ82A-E3/52 | Lower peak power (600 W), SMB package (smaller footprint, higher RθJA ≈ 85 °C/W), same VWM/VC specs | Not AEC-Q101 qualified; limited to commercial-grade consumer/industrial use | Select when board space is constrained and surge threat level is ≤IEC 61000-4-5 Level 2 (1 kV) |
| 1.5KE82A | Through-hole DO-201 package, identical electrical specs but no AEC-Q101 or halogen-free certification | Requires wave soldering; unsuitable for automated SMT lines or automotive production | Choose only for legacy through-hole designs or prototyping where rework tolerance outweighs production efficiency |
Compared with 1.5SMC82AHM3_A/H, SMBJ82A-E3/52 trades automotive qualification and thermal robustness for compact size, while 1.5KE82A sacrifices SMT compatibility and environmental compliance for cost-sensitive through-hole builds - neither offers drop-in replacement due to package, qualification, or thermal profile differences.
Availability
1.5SMC82AHM3_A/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial motor drives, and telecom infrastructure requiring stable component supply with AEC-Q101 validation and halogen-free compliance.
Supply support for 1.5SMC82AHM3_A/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, and protection devices with emphasis on reliability, power handling, and automotive qualification.
The 1.5SMC Series was engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where failure modes must be mitigated without sacrificing long-term stability or manufacturability.
FAQ
What is the clamping voltage of the 1.5SMC82AHM3_A/H under a 10/1000 μs surge?
The 1.5SMC82AHM3_A/H has a maximum clamping voltage (VC) of 113 V when subjected to a 10/1000 μs waveform at its rated peak pulse current of 13.3 A. This value is measured per Figure 1 and Table 1 in Vishay's Document Number 88303 and defines the upper voltage limit imposed on protected circuitry during standardized surge events.
Is the 1.5SMC82AHM3_A/H suitable for automotive applications?
Yes, the 1.5SMC82AHM3_A/H is AEC-Q101 qualified and carries the HM3 suffix indicating halogen-free, RoHS-compliant construction. It is explicitly designated for automotive use per Vishay's ordering information table and meets stress test requirements for temperature cycling, high-temperature reverse bias, and mechanical shock - making it appropriate for engine control, body electronics, and ADAS subsystems.
What does the "_A/H" suffix mean in 1.5SMC82AHM3_A/H?
The "_A/H" suffix in 1.5SMC82AHM3_A/H indicates two attributes: "A" denotes AEC-Q101 qualification for the 1.5SMC6.8A–1.5SMC220A voltage range, and "H" specifies packaging in 7-inch diameter plastic tape and reel with 850 units per reel. This matches Vishay's documented ordering convention in Section 3 of Document 88303.
How does the thermal resistance of the 1.5SMC82AHM3_A/H affect PCB layout?
The 1.5SMC82AHM3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W, which assumes mounting on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. To maintain safe junction temperatures under sustained power dissipation, designers must allocate adequate copper area and consider thermal vias - especially in high-ambient environments like automotive under-hood locations.
Can the 1.5SMC82AHM3_A/H be used in bidirectional configurations?
No, the 1.5SMC82AHM3_A/H is a unidirectional TVS diode, as confirmed by its part number suffix "A" (not "CA") and the presence of a cathode band marking. Bidirectional variants in the same series use the "CA" suffix (e.g., 1.5SMC82CA) and lack polarity markings. Using this part in reverse-biased configurations will result in forward conduction and potential failure.
1.5SMC82AHM3_A/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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 70.1V
- Voltage - Breakdown (Min):
- 77.9V
- Voltage - Clamping (Max) @ Ipp:
- 113V
- Current - Peak Pulse (10/1000µs):
- 13.3A
- 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)
1.5SMC82AHM3_A/H FAQ
1.How can I place an order for 1.5SMC82AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC82AHM3_A/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 1.5SMC82AHM3_A/H reliable?
The price and inventory of 1.5SMC82AHM3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC82AHM3_A/H is usually 5 days.
3.What payment methods are accepted for 1.5SMC82AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC82AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC82AHM3_A/H?
1.5SMC82AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC82AHM3_A/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 1.5SMC82AHM3_A/H?
For technical support, including 1.5SMC82AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC82AHM3_A/H requirements.
6.How does Aetrix verify that 1.5SMC82AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All 1.5SMC82AHM3_A/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 1.5SMC82AHM3_A/H meets industry standards.
7.What is the process for return or replacement of 1.5SMC82AHM3_A/H?
All 1.5SMC82AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC82AHM3_A/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 1.5SMC82AHM3_A/H part is unused and in its original packaging.
Return procedure for 1.5SMC82AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC82AHM3_A/H Tags
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