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Vishay General Semiconductor - Diodes Division 1.5SMC75AHM3_A/I
- Part No.:
- 1.5SMC75AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC75AHM3_A/I.pdf
- Description:
- TVS DIODE 64.1VWM 104VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,159
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Product details
Overview
1.5SMC75AHM3_A/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, rated for 75 V breakdown voltage (VBR = 71.3–78.8 V at IT = 1.0 mA), 64.1 V stand-off voltage (VWM), and 104 V clamping voltage (VC) at 14.6 A peak pulse current (IPPM). It delivers 1500 W peak pulse power (10/1000 μs waveform) and is AEC-Q101 qualified for automotive electronics protection.
For engineers reviewing the 1.5SMC75AHM3_A/I datasheet, 1.5SMC75AHM3_A/I pinout, 1.5SMC75AHM3_A/I application, or 1.5SMC75AHM3_A/I equivalent, this device serves as a robust, halogen-free, RoHS-compliant TVS for high-energy transient suppression in power rails, sensor interfaces, and ECU input lines where fast response (<1 ns), low clamping ratio (VC/VWM ≈ 1.62), and MSL Level 1 reliability are required.
Technical Context
The 1.5SMC75AHM3_A/I employs a glass-passivated silicon junction optimized for unidirectional surge clamping with low incremental surge resistance and excellent clamping linearity under repetitive 10/1000 μs transients. Its thermal design supports 150 °C maximum junction temperature and 75 °C/W junction-to-ambient thermal resistance on standard 8.0 mm × 8.0 mm copper pads.
It features a cathode-band polarity marking, matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and meets UL 94 V-0 flammability requirements. The HM3 suffix confirms halogen-free, RoHS-compliant, and AEC-Q101-qualified construction - validated for automotive-grade reliability per JESD 201 Class 2 whisker testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 71.3 V / 78.8 V at 1.0 mA test current - defines precise breakdown threshold for reliable overvoltage triggering |
| VWM | 64.1 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | 104 V at 14.6 A - clamping voltage during 1500 W transient, limiting downstream stress to safe levels |
| PPPM | 1500 W (10/1000 μs waveform) - peak surge energy handling capacity for lightning and inductive-switching events |
| IFSM | 200 A (8.3 ms half-sine) - surge current rating for unidirectional forward conduction during fault conditions |
| TJ max. | +150 °C - enables operation in under-hood automotive environments without derating below ambient |
| Package | SMC (DO-214AB) - industry-standard surface-mount outline with 0.320" × 0.246" footprint and 0.126" height |
Pinout & Package
Package: SMC (DO-214AB), molded epoxy case with matte tin-plated leads; cathode identified by band marking; polarity-critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias | Connected to protected circuit ground or low-side return path during clamping |
| Cathode | Current exit terminal in forward bias; marked with band | Connected to protected line (e.g., 12 V rail or sensor signal); conducts surge current to ground |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics per stress-test requirements including temperature cycling, HTRB, and ESD |
| Halogen-free & RoHS-compliant (HM3) | Meets global environmental regulations without compromising surge robustness or thermal performance |
| 1500 W peak pulse power | Withstands high-energy transients from load dump or ISO 7637-2 Pulse 5a without degradation |
| Fast response time (<1 ns) | Clamps before sensitive ICs (e.g., CAN transceivers, microcontrollers) experience damaging overvoltage |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without moisture-related popcorning risk |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump (ISO 16750-2) and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp surges above 64.1 V. Use Value: Limits peak voltage to 104 V during 1500 W transients, preventing damage to 36 V-rated DC-DC converters and MCU power supplies. |
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in factory automation systems exposed to relay switching noise. IC Role / Device Role / Timing Role: TVS mounted at connector interface to shunt induced spikes before reaching ADC input stages. Use Value: Sub-1 ns response ensures clamping occurs before 12-bit SAR ADC sampling windows, preserving measurement integrity. |
| Telecom Line Card Surge Protection | Consumer Power Adapter Input Stage |
Use Scenario: Front-end protection of PoE-powered line cards against lightning-induced surges on Ethernet pairs. IC Role / Device Role / Timing Role: Paired unidirectional TVS devices on each data pair, referenced to common-mode ground. Use Value: 104 V clamping voltage aligns with IEEE 802.3af/bt isolation ratings, enabling compliance with IEC 61000-4-5 Level 4 (4 kV) |
Use Scenario: Secondary-side DC bus protection in USB-C PD adapters subjected to capacitor discharge events. IC Role / Device Role / Timing Role: TVS across +VOUT and GND after secondary rectification to absorb output capacitor ringing. Use Value: 6.5 W steady-state power dissipation supports continuous operation during thermal stress testing at 70 °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 |
|---|---|---|---|
| SMBJ75A-E3/52 | Lower peak power (600 W), SMB package (smaller footprint, higher RθJA = 85 °C/W) | Not AEC-Q101 qualified; suitable for commercial-grade consumer power supplies only | Select when board space is constrained and surge energy is ≤600 W (e.g., USB port protection) |
| 1.5KE75A | Through-hole DO-201 package; same VBR/VC specs but lower IPPM (13.7 A) and no AEC-Q101 qualification | Limited to non-automotive industrial PCBs where wave soldering is used and vibration resistance is not critical | Choose for legacy through-hole designs or cost-sensitive non-automotive applications requiring identical electrical specs |
Compared with SMBJ75A-E3/52 and 1.5KE75A, the 1.5SMC75AHM3_A/I provides superior automotive-grade reliability, higher surge margin (1500 W vs. 600 W or 1375 W), and surface-mount compatibility with automated assembly - making it the preferred choice for new AEC-Q101-compliant designs requiring robust, production-ready TVS protection.
Availability
1.5SMC75AHM3_A/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom line cards, and consumer power adapters requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for 1.5SMC75AHM3_A/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, MOSFETs, and protection devices with emphasis on high-reliability, high-efficiency solutions.
The 1.5SMC Series was engineered specifically for surface-mount transient suppression in harsh environments - delivering automotive-grade robustness, high-power surge capability, and consistent clamping performance across temperature and lifetime.
FAQ
What is the clamping voltage of the 1.5SMC75AHM3_A/I at its rated peak pulse current?
The 1.5SMC75AHM3_A/I has a maximum clamping voltage (VC) of 104 V at its rated peak pulse current (IPPM) of 14.6 A, measured under the standardized 10/1000 μs double-exponential waveform. This value ensures predictable overvoltage limiting during surge events and is verified per JEDEC test methods. The 1.5SMC75AHM3_A/I maintains this clamping performance across its full operating temperature range (-65 °C to +150 °C).
Is the 1.5SMC75AHM3_A/I suitable for automotive applications?
Yes, the 1.5SMC75AHM3_A/I is AEC-Q101 qualified and explicitly designed for automotive use, with validation across temperature cycling, high-temperature reverse bias (HTRB), and mechanical shock tests. Its HM3 suffix denotes halogen-free, RoHS-compliant, and automotive-grade construction. The 1.5SMC75AHM3_A/I is commonly deployed in engine control units, body control modules, and ADAS sensor interfaces where compliance with ISO 16750-2 and ISO 7637-2 is mandatory.
What does the "HM3" suffix mean in 1.5SMC75AHM3_A/I?
The "HM3" suffix in 1.5SMC75AHM3_A/I indicates halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It replaces older "E3" (RoHS only) and "HE3" (AEC-Q101 + RoHS) variants. The "_A/I" denotes packaging: "A" signifies AEC-Q101 qualification level, and "I" specifies 3500-unit tape-and-reel delivery on 13-inch reels. This suffix directly maps to Vishay's ordering code system defined in Document 88303.
How does the 1.5SMC75AHM3_A/I compare to bidirectional TVS diodes like 1.5SMC75CA?
The 1.5SMC75AHM3_A/I is unidirectional and features a cathode band for polarity-sensitive placement, while 1.5SMC75CA is bidirectional with symmetrical clamping in both directions and no polarity marking. The 1.5SMC75AHM3_A/I offers tighter VBR tolerance (±5% typical) and is optimized for DC rail protection, whereas 1.5SMC75CA suits AC-coupled or differential signal lines. Both share identical SMC package and 1500 W rating, but only the 1.5SMC75AHM3_A/I carries AEC-Q101 and HM3 environmental certification.
What is the maximum operating temperature for the 1.5SMC75AHM3_A/I?
The 1.5SMC75AHM3_A/I has a maximum junction temperature (TJ) of +150 °C and an operating junction/storage temperature range of -65 °C to +150 °C. Its thermal resistance (RθJA) is 75 °C/W when mounted on 8.0 mm × 8.0 mm copper pads, allowing reliable operation in under-hood automotive environments and industrial enclosures without active cooling. Derating begins above 25 °C ambient per Figure 2 in Vishay Document 88303.
1.5SMC75AHM3_A/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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 64.1V
- Voltage - Breakdown (Min):
- 71.3V
- Voltage - Clamping (Max) @ Ipp:
- 104V
- Current - Peak Pulse (10/1000µs):
- 14.6A
- 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)
1.5SMC75AHM3_A/I FAQ
1.How can I place an order for 1.5SMC75AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC75AHM3_A/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 1.5SMC75AHM3_A/I reliable?
The price and inventory of 1.5SMC75AHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC75AHM3_A/I is usually 5 days.
3.What payment methods are accepted for 1.5SMC75AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC75AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC75AHM3_A/I?
1.5SMC75AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC75AHM3_A/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 1.5SMC75AHM3_A/I?
For technical support, including 1.5SMC75AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC75AHM3_A/I requirements.
6.How does Aetrix verify that 1.5SMC75AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All 1.5SMC75AHM3_A/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 1.5SMC75AHM3_A/I meets industry standards.
7.What is the process for return or replacement of 1.5SMC75AHM3_A/I?
All 1.5SMC75AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC75AHM3_A/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 1.5SMC75AHM3_A/I part is unused and in its original packaging.
Return procedure for 1.5SMC75AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC75AHM3_A/I Tags
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