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Vishay General Semiconductor - Diodes Division 1.5SMC8.2AHM3/H
- Part No.:
- 1.5SMC8.2AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC8.2AHM3/H.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,429
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Product details
Overview
1.5SMC8.2AHM3/H 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 7.79 V to 8.61 V breakdown voltage (VBR at 10 mA), 7.02 V stand-off voltage (VWM), 12.1 V maximum clamping voltage (VC at 124 A), 1500 W peak pulse power (10/1000 µs), and AEC-Q101 qualification for automotive use.
For engineers reviewing the 1.5SMC8.2AHM3/H datasheet, 1.5SMC8.2AHM3/H pinout, 1.5SMC8.2AHM3/H application, or 1.5SMC8.2AHM3/H equivalent, key selection criteria include its 7.02 V reverse stand-off rating, 12.1 V clamping performance under 124 A surge, unidirectional polarity with cathode band marking, halogen-free RoHS-compliant construction, and suitability for automotive-grade ESD and lightning transient protection in constrained PCB layouts.
Technical Context
The 1.5SMC8.2AHM3/H employs a glass-passivated silicon junction optimized for fast response (<1 ps) to transient overvoltages, with low incremental surge resistance enabling stable clamping during repetitive 10/1000 µs pulses at 0.01% duty cycle. Its thermal resistance (RθJA = 75 °C/W) and junction temperature range (–65 °C to +150 °C) support operation in high-reliability automotive and industrial environments.
Designed as a unidirectional device, it conducts only in reverse bias above VBR, with forward surge capability (IFSM = 200 A, 8.3 ms half-sine) and meets J-STD-020 MSL Level 1 (260 °C peak reflow). The HM3 suffix confirms halogen-free, RoHS-compliant, and AEC-Q101-qualified construction - verified per test conditions in document 88303.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.79 V / 8.61 V at 10 mA - defines precise reverse breakdown threshold for reliable triggering |
| VWM | 7.02 V - maximum continuous reverse operating voltage before leakage exceeds 200 µA |
| VC @ IPPM | 12.1 V at 124 A - clamping voltage limiting downstream circuit stress during 1500 W transient |
| PPPM | 1500 W (10/1000 µs) - peak surge power handling capacity for lightning and inductive switch-off events |
| IFSM | 200 A (8.3 ms half-sine) - forward surge current rating supporting temporary fault conditions |
| TJ Range | –65 °C to +150 °C - enables deployment in under-hood automotive and industrial ambient extremes |
| Package | SMC (DO-214AB) - standardized 7.75 mm × 6.22 mm surface-mount outline with matte tin leads |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with UL 94 V-0 flammability rating; terminals are matte tin plated, solderable per J-STD-002 and JESD 22-B102; polarity indicated by cathode band on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; carries forward surge current up to 200 A |
| Cathode | Reverse-biased clamping terminal | Marked with band; referenced to higher-potential rail; initiates avalanche conduction when VWM exceeded |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces |
| 1500 W peak pulse power | Withstands ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 Level 4 surges without degradation |
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity stress |
| Halogen-free & RoHS-compliant (HM3) | Meets automotive OEM material compliance requirements and supports lead-free reflow assembly |
| MSL Level 1 (260 °C) | Enables single-pass reflow without moisture sensitivity concerns or baking preconditioning |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 5 V or 12 V power rails in engine control units (ECUs) and body control modules (BCMs) against load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between rail and ground to clamp voltage spikes before they reach MCU power pins or LDO inputs. Use Value: Limits rail voltage to ≤12.1 V during 124 A surges, preventing latch-up or permanent damage to 5 V/12 V logic and analog ICs. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA, 0–5 V) of pressure or temperature sensors in factory automation systems. IC Role / Device Role / Timing Role: TVS connected across sensor output and return to suppress ESD and cable-induced transients before signal conditioning amplifiers. Use Value: Maintains signal integrity by clamping transients within 1 ns, with <200 µA leakage at 7.02 V ensuring minimal offset error in precision measurement paths. |
| Consumer USB Port ESD Protection | Telecom Line Card Surge Suppression |
Use Scenario: Secondary-level ESD protection on VBUS and D+/D– lines of USB 2.0 ports in set-top boxes and smart displays. IC Role / Device Role / Timing Role: Unidirectional TVS on VBUS (anode to GND, cathode to VBUS) to absorb ±15 kV contact discharge per IEC 61000-4-2. Use Value: Clamps VBUS to 12.1 V while maintaining <1 pF junction capacitance (typ.) - no signal integrity impact on 480 Mbps data lines. |
Use Scenario: Front-end surge suppression on DC power feeds and RS-485 differential pairs in telecom base station line cards. IC Role / Device Role / Timing Role: TVS array configured with 1.5SMC8.2AHM3/H on each DC input rail to meet GR-1089-CORE Level 3 (10/1000 µs, 1500 W) requirements. Use Value: Delivers repeatable 1500 W clamping performance with <10 ns response, enabling compliance without derating or parallel devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.0A | Lower PPPM (400 W), smaller SMA package (DO-214AC), VC = 12.5 V @ 32.4 A | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a or IEC 61000-4-5 Level 4 | Select when board space is critical and surge energy does not exceed 400 W; verify thermal margin with RθJA = 100 °C/W |
| 1.5KE8.2A | Through-hole TO-204AA (DO-41), same VBR/VC, but higher RθJA (70 °C/W), no AEC-Q101 qualification | Not suitable for automated SMT lines or automotive under-hood environments requiring vibration resistance | Choose only for legacy through-hole designs or prototyping where reflow compatibility and automotive qualification are not required |
Compared with SMAJ8.0A and 1.5KE8.2A, the 1.5SMC8.2AHM3/H uniquely combines 1500 W surge rating, AEC-Q101 qualification, halogen-free SMC packaging, and MSL Level 1 reflow compatibility - making it the only option among the three validated for high-volume automotive SMT production with full transient immunity coverage.
Availability
1.5SMC8.2AHM3/H is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, consumer USB power delivery circuits, and telecom line card designs requiring stable component supply with full traceability and lifecycle continuity.
Supply support for 1.5SMC8.2AHM3/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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The 1.5SMC Series was developed to deliver high-power, surface-mount transient suppression for automotive, industrial, and communications systems where space, thermal performance, and AEC-Q101 compliance are mandatory design constraints.
FAQ
What is the breakdown voltage tolerance of the 1.5SMC8.2AHM3/H?
The 1.5SMC8.2AHM3/H has a specified breakdown voltage (VBR) range of 7.79 V to 8.61 V at 10 mA test current, representing a ±5.3% tolerance about the nominal 8.2 V rating. This tight distribution ensures consistent clamping behavior across production lots and supports robust design margins in automotive and industrial applications where predictable turn-on is critical.
Is the 1.5SMC8.2AHM3/H suitable for bidirectional transient protection?
No - the 1.5SMC8.2AHM3/H is a unidirectional TVS diode, identified by the "A" suffix and cathode band marking. For bidirectional protection, Vishay offers the 1.5SMC8.2CA variant. Using the 1.5SMC8.2AHM3/H in bidirectional configurations would result in forward conduction during negative transients, potentially damaging the device or failing to suppress.
Does the HM3 suffix on 1.5SMC8.2AHM3/H indicate AEC-Q101 qualification?
Yes - the HM3 suffix explicitly denotes halogen-free, RoHS-compliant construction with full AEC-Q101 qualification, as confirmed in Vishay document 88303. This certification covers stress tests including HTGB, H3TRB, TC, UHAST, and mechanical shock, validating the 1.5SMC8.2AHM3/H for automotive powertrain and chassis applications.
What is the maximum clamping voltage of the 1.5SMC8.2AHM3/H under surge conditions?
The 1.5SMC8.2AHM3/H exhibits a maximum clamping voltage (VC) of 12.1 V when subjected to its rated peak pulse current of 124 A (10/1000 µs waveform). This value is measured per Figure 1 in the datasheet and defines the upper voltage limit imposed on protected circuitry during worst-case transient events.
Can the 1.5SMC8.2AHM3/H be used in DC power supply input stages?
Yes - the 1.5SMC8.2AHM3/H is routinely deployed on DC input rails (e.g., 12 V or 24 V) to suppress load dump, jump-start, and inductive switching transients. Its 7.02 V stand-off voltage allows safe operation with 5 V/12 V logic supplies, while its 1500 W rating handles ISO 7637-2 Pulse 5a surges up to 124 A without failure.
1.5SMC8.2AHM3/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:
- 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/H FAQ
1.How can I place an order for 1.5SMC8.2AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC8.2AHM3/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 1.5SMC8.2AHM3/H reliable?
The price and inventory of 1.5SMC8.2AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC8.2AHM3/H is usually 5 days.
3.What payment methods are accepted for 1.5SMC8.2AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC8.2AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC8.2AHM3/H?
1.5SMC8.2AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC8.2AHM3/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 1.5SMC8.2AHM3/H?
For technical support, including 1.5SMC8.2AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC8.2AHM3/H requirements.
6.How does Aetrix verify that 1.5SMC8.2AHM3/H is sourced from the original manufacturer or authorized distributors?
All 1.5SMC8.2AHM3/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 1.5SMC8.2AHM3/H meets industry standards.
7.What is the process for return or replacement of 1.5SMC8.2AHM3/H?
All 1.5SMC8.2AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC8.2AHM3/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 1.5SMC8.2AHM3/H part is unused and in its original packaging.
Return procedure for 1.5SMC8.2AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC8.2AHM3/H Tags
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