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Vishay General Semiconductor - Diodes Division 1.5SMC16AHM3_A/H
- Part No.:
- 1.5SMC16AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC16AHM3_A/H.pdf
- Description:
- TVS DIODE 13.6VWM 22.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,857
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Product details
Overview
1.5SMC16AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMC (DO-214AB) package, designed for high-energy surge protection. It features a 13.6 V stand-off voltage (VWM), 15.2–16.8 V breakdown voltage (VBR) at 1 mA, 22.5 V maximum clamping voltage (VC) at 66.7 A peak pulse current, and 1500 W peak pulse power capability with a 10/1000 µs waveform - used to safeguard MOSFETs, ICs, and sensor signal lines against lightning-induced transients and inductive switching spikes in automotive and industrial power supplies.
For engineers reviewing the 1.5SMC16AHM3_A/H datasheet, 1.5SMC16AHM3_A/H pinout, 1.5SMC16AHM3_A/H application, or 1.5SMC16AHM3_A/H equivalent, this part delivers AEC-Q101 qualification, halogen-free RoHS compliance, MSL Level 1 moisture sensitivity, and verified clamping performance under repetitive 0.01% duty-cycle surges - critical for automotive-grade ECU and ADAS sensor interface protection design.
Technical Context
The 1.5SMC16AHM3_A/H operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its breakdown threshold, with cathode-band polarity marking. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low incremental surge resistance, enabling fast response (<1 ns) to transient events while maintaining low leakage (<1 µA at 13.6 V).
Thermally, it exhibits RθJA = 75 °C/W (on recommended 8.0 mm × 8.0 mm copper pads) and supports continuous operation up to TJ = 150 °C. The device is rated for 200 A non-repetitive forward surge current (8.3 ms half-sine) and derates linearly above 25 °C ambient per Figure 2 of the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13.6 V - Maximum continuous reverse operating voltage before clamping begins; sets safe margin below system rail (e.g., 12 V nominal supply) |
| VBR @ IT = 1 mA | 15.2–16.8 V - Verified avalanche onset range; ensures predictable turn-on during overvoltage events without premature conduction |
| VC @ IPPM = 66.7 A | 22.5 V - Clamped voltage during 10/1000 µs surge; defines maximum stress imposed on protected downstream circuitry |
| PPPM | 1500 W - Peak pulse power handling capacity; enables robust protection against IEC 61000-4-5 Level 4 (4 kV/2 Ω) surges |
| IPPM | 66.7 A - Peak pulse current rating at VC; directly correlates with surge energy absorption (E ≈ ½ × VC × IPPM × tp) |
| TJ max | 150 °C - Maximum junction temperature; supports operation in under-hood automotive environments and sealed industrial enclosures |
| Package | SMC (DO-214AB) - Standardized surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height; compatible with automated pick-and-place and reflow soldering |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, MSL Level 1 (260 °C peak reflow). Polarity marked by cathode band on one end; anode and cathode terminals are axially oriented along the body length.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Reverse-biased terminal | Connected to protected line (e.g., 12 V rail); conducts surge current to ground when VIN > VBR |
| Anode | Reference/ground return | Typically tied to system ground plane; completes low-inductance surge path for effective clamping |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics; supports PPAP documentation and long-term reliability requirements |
| 1500 W peak pulse power (10/1000 µs) | Enables single-device protection against severe transients per ISO 7637-2 Pulse 5a/b and IEC 61000-4-5 surge standards |
| Glass-passivated junction | Ensures stable electrical parameters over time and temperature; eliminates risk of junction degradation under repeated surge stress |
| Halogen-free & RoHS-compliant (HM3 suffix) | Meets EU Directive 2011/65/EU and automotive material restrictions; supports green manufacturing and end-of-life recycling compliance |
| Low clamping ratio (VC/VBR ≈ 1.44) | Minimizes overvoltage overshoot during clamping; reduces risk of latch-up or gate oxide damage in protected MOSFETs and ICs |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple transients in passenger vehicles. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp surges above 13.6 V. Use Value: Limits peak voltage to 22.5 V during 1500 W surges, preventing damage to microcontrollers and CAN transceivers without adding series impedance. |
Use Scenario: Shielding analog outputs of pressure/temperature sensors in factory automation PLC modules from ESD and cable discharge events. IC Role / Device Role / Timing Role: TVS mounted at connector entry point, shunting fast transients (<1 ns rise) before reaching precision ADC front-end. Use Value: Sub-1 µA leakage at 13.6 V avoids DC offset errors; 22.5 V clamping prevents saturation of op-amp buffers driving 4–20 mA loops. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Protection |
|
Use Scenario: Safeguarding PoE-powered network switches against induced surges on 48 V DC input derived from outdoor cabling. IC Role / Device Role / Timing Role: Primary surge suppressor on DC input stage, coordinated with upstream fuse and downstream DC-DC converter. Use Value: Withstands 66.7 A pulses without degradation; thermal resistance of 75 °C/W allows reliable operation without heatsinking in compact enclosures. |
Use Scenario: Suppressing back-EMF spikes generated by brushed DC motors in smart home appliances (e.g., vacuum cleaners, washing machines). IC Role / Device Role / Timing Role: Mounted across motor terminals to absorb inductive kickback during PWM commutation and switch-off events. Use Value: 200 A surge rating handles worst-case 8.3 ms half-sine transients; low VF (3.5 V @ 100 A) minimizes conduction loss during clamping. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16A-E3/52 | Same VWM (13.6 V), lower PPPM (600 W), SMB package (smaller footprint, higher RθJA = 85 °C/W) | Lower surge energy handling; suitable for consumer-grade, non-automotive applications with less stringent IEC 61000-4-5 requirements | Select when board space is constrained and surge threat level is limited to Level 2 (1 kV/42 Ω) |
| 1.5KE16A | Same VWM/VBR, through-hole DO-201 package, identical 1500 W rating but larger size and manual assembly requirement | Not suitable for automated SMT production; used where mechanical robustness or high-vibration mounting is prioritized over density | Choose for legacy designs requiring through-hole compatibility or where thermal mass of axial leaded package improves sustained surge endurance |
Compared with SMBJ16A-E3/52 and 1.5KE16A, the 1.5SMC16AHM3_A/H uniquely combines AEC-Q101 qualification, halogen-free compliance, and SMC package scalability - making it the preferred choice for new automotive and industrial SMT designs demanding both regulatory alignment and high-energy transient resilience.
Availability
1.5SMC16AHM3_A/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, telecom DC power inputs, and consumer appliance motor drives requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for 1.5SMC16AHM3_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, 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 protection for automotive, industrial, and telecom systems - balancing clamping performance, thermal robustness, and manufacturability in standardized SMC packaging.
FAQ
What is the clamping voltage of the 1.5SMC16AHM3_A/H under a 10/1000 µs surge?
The 1.5SMC16AHM3_A/H has a maximum clamping voltage (VC) of 22.5 V when subjected to its rated peak pulse current of 66.7 A using the standard 10/1000 µs waveform. This value is measured per Figure 1 in the Vishay datasheet 88303 and represents the upper limit of voltage seen by protected circuitry during a full-energy transient event. The 1.5SMC16AHM3_A/H maintains this clamping performance across its specified operating temperature range and after repeated surge exposures, provided thermal limits are observed.
Is the 1.5SMC16AHM3_A/H suitable for automotive applications?
Yes, the 1.5SMC16AHM3_A/H is AEC-Q101 qualified and explicitly designated for automotive use via its HM3 suffix and "_A/H" revision code. It meets requirements for under-hood and cabin-mounted ECUs, including thermal cycling, humidity resistance, and surge endurance testing per AEC-Q101. The 1.5SMC16AHM3_A/H is commonly deployed in body control modules, ADAS camera power rails, and infotainment system DC inputs where ISO 7637-2 and IEC 61000-4-5 compliance is mandatory.
What does the "HM3" suffix indicate in 1.5SMC16AHM3_A/H?
The "HM3" suffix in 1.5SMC16AHM3_A/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from commercial-grade "E3" or "M3" versions and confirms compliance with automotive material restrictions (e.g., JESD201 Class 2 whisker resistance, UL 94 V-0 flammability, and lead-free solderability per J-STD-002). The 1.5SMC16AHM3_A/H is manufactured to meet these specifications without performance trade-offs versus non-halogen-free equivalents.
How does the 1.5SMC16AHM3_A/H compare to bidirectional TVS diodes like 1.5SMC16CA?
The 1.5SMC16AHM3_A/H is unidirectional and intended for DC line protection where polarity is fixed (e.g., +12 V rail to ground), offering tighter VBR tolerance and lower leakage than its bidirectional counterpart 1.5SMC16CA. The 1.5SMC16CA supports AC or floating signal lines but exhibits higher leakage and dual-threshold behavior. For 12 V automotive systems, the 1.5SMC16AHM3_A/H provides superior clamping consistency and lower standby power loss compared to 1.5SMC16CA.
What is the maximum operating temperature for the 1.5SMC16AHM3_A/H?
The 1.5SMC16AHM3_A/H has a maximum junction temperature (TJ) rating of +150 °C and an operating storage temperature range of -65 °C to +150 °C. Its thermal resistance (RθJA) is 75 °C/W when mounted on the recommended 8.0 mm × 8.0 mm copper pad layout. Derating curves in Figure 2 of the datasheet show that at 100 °C ambient, the device retains ~60% of its 1500 W peak pulse rating - confirming suitability for under-hood environments where the 1.5SMC16AHM3_A/H remains fully functional.
1.5SMC16AHM3_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):
- 13.6V
- Voltage - Breakdown (Min):
- 15.2V
- Voltage - Clamping (Max) @ Ipp:
- 22.5V
- Current - Peak Pulse (10/1000µs):
- 66.7A
- 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)
1.5SMC16AHM3_A/H FAQ
1.How can I place an order for 1.5SMC16AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC16AHM3_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 1.5SMC16AHM3_A/H reliable?
The price and inventory of 1.5SMC16AHM3_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 1.5SMC16AHM3_A/H is usually 5 days.
3.What payment methods are accepted for 1.5SMC16AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC16AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC16AHM3_A/H?
1.5SMC16AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC16AHM3_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 1.5SMC16AHM3_A/H?
For technical support, including 1.5SMC16AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC16AHM3_A/H requirements.
6.How does Aetrix verify that 1.5SMC16AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All 1.5SMC16AHM3_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 1.5SMC16AHM3_A/H meets industry standards.
7.What is the process for return or replacement of 1.5SMC16AHM3_A/H?
All 1.5SMC16AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC16AHM3_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 1.5SMC16AHM3_A/H part is unused and in its original packaging.
Return procedure for 1.5SMC16AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC16AHM3_A/H Tags
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