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Vishay General Semiconductor - Diodes Division 1.5SMC30AHM3_A/I
- Part No.:
- 1.5SMC30AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC30AHM3_A/I.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,601
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Product details
Overview
1.5SMC30AHM3_A/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 30 V standoff voltage (VWM), 33.3 V minimum breakdown voltage (VBR), 41.4 V maximum clamping voltage (VC) at 36.2 A peak pulse current, and 1500 W peak pulse power capability with a 10/1000 μs waveform - deployed in automotive sensor interfaces, industrial I/O modules, and DC power rail protection.
For engineers reviewing the 1.5SMC30AHM3_A/I datasheet, 1.5SMC30AHM3_A/I pinout, 1.5SMC30AHM3_A/I application, or 1.5SMC30AHM3_A/I equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, SMC (DO-214AB) package dimensions, thermal resistance data, and real-world design implications for surge immunity in harsh environments.
Technical Context
The 1.5SMC30AHM3_A/I operates as a unidirectional clamping device with glass-passivated junction technology, enabling fast response to transient events (<1 ps typical) and low incremental surge resistance. Its breakdown threshold is tightly specified at 33.3–37.5 V (IT = 1 mA), ensuring predictable turn-on behavior during ESD or lightning-induced surges.
Thermally, it exhibits RθJA = 75 °C/W and RθJL = 15 °C/W, supporting reliable operation up to TJ = 150 °C. The device is halogen-free, RoHS-compliant, and qualified to AEC-Q101 - confirming suitability for automotive-grade PCB layouts without derating penalties under standard mounting conditions (8.0 mm × 8.0 mm copper pads).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 30 V - Maximum continuous reverse voltage before leakage exceeds 1 μA; defines safe operating window for DC bias rails. |
| VBR (Min/Max) | 33.3 V / 37.5 V at IT = 1 mA - Confirmed breakdown range ensures consistent clamping onset across production lots. |
| VC @ IPPM | 41.4 V at 36.2 A - Clamping voltage under 10/1000 μs surge; limits downstream IC stress to safe levels. |
| PPPM | 1500 W - Peak pulse power handling capacity; supports IEC 61000-4-5 Level 4 (4 kV) surge testing compliance. |
| IFSM | 200 A - Non-repetitive forward surge rating (8.3 ms half-sine); protects against inductive switch-off transients. |
| TJ max. | +150 °C - Maximum junction temperature; enables use in under-hood automotive and 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. |
Pinout & Package
Package: SMC (DO-214AB), molded epoxy case with matte tin-plated leads 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; conducts during positive transients when used in reverse-biased configuration. |
| Cathode | Clamping reference terminal | Connected to higher-potential side (e.g., VCC rail); establishes clamping path to ground via series impedance during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Enables single-device protection against IEC 61000-4-5 4 kV surge events without external current limiting. |
| AEC-Q101 qualified | Validated for automotive applications including engine control units, ADAS sensor interfaces, and body electronics. |
| Halogen-free & RoHS-compliant | Meets global environmental compliance requirements for industrial and consumer end equipment. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for sensitive 3.3 V/5 V logic. |
| MSL Level 1 (260 °C peak) | Supports lead-free reflow assembly without moisture sensitivity concerns or baking requirements. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and ground to clamp negative transients and between VCC and ground for positive surges. Use Value: Limits voltage excursion to ≤41.4 V during 36.2 A transients, preserving integrity of 5 V tolerant transceivers and ADC front-ends. |
Use Scenario: Safeguarding 24 V digital input modules in programmable logic controllers exposed to relay coil flyback and field wiring surges. IC Role / Device Role / Timing Role: Mounted across input terminals to shunt induced energy into chassis ground before reaching optocoupler or Schmitt trigger inputs. Use Value: Withstands repetitive 1500 W surges at 0.01 % duty cycle, extending system uptime in factory automation environments. |
| DC Power Rail Protection | Telecom Interface Protection |
Use Scenario: Secondary overvoltage protection on 30 V intermediate bus rails feeding FPGAs, PMICs, and motor drivers. IC Role / Device Role / Timing Role: Placed downstream of primary DC/DC converters to suppress switching noise coupling and external surge injection. Use Value: Clamps transients within 1 ps response time while maintaining <1 μA leakage at 30 V, minimizing standby power loss. |
Use Scenario: Protecting RS-485/RS-422 transceiver pins in base station backhaul links subjected to lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Used in conjunction with common-mode chokes to divert differential-mode surge energy away from transceiver ESD structures. Use Value: Delivers 41.4 V clamping at 36.2 A with ±10 % VBR tolerance, ensuring interoperability across multi-vendor transceiver designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ30A-E3/52 | Lower peak power (600 W), SMB package (smaller footprint), same VWM/VC specs. | Preferred for space-constrained consumer electronics where 1500 W margin is not required. | Select when board area is critical and surge threat level is ≤IEC 61000-4-5 Level 2. |
| 1.5KE30A | Through-hole DO-201 package, identical electrical specs but no AEC-Q101 qualification or halogen-free marking. | Suitable for legacy industrial designs with wave-solder assembly and non-automotive qualification needs. | Choose only for cost-sensitive, non-automotive applications where SMT placement is not available. |
Compared with SMBJ30A-E3/52 and 1.5KE30A, the 1.5SMC30AHM3_A/I uniquely combines AEC-Q101 qualification, halogen-free construction, and 1500 W SMC-package performance - making it the only option qualified for next-generation automotive and high-reliability industrial deployments requiring zero rework on surge validation.
Availability
1.5SMC30AHM3_A/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, DC power rail protection, and telecom interface circuits requiring stable component supply across extended product lifecycles.
Supply support for 1.5SMC30AHM3_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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The 1.5SMC Series was engineered for high-energy transient suppression in automotive, industrial, and telecom systems - delivering standardized SMC-packaged TVS performance with AEC-Q101 validation and environmental compliance built-in.
FAQ
What is the clamping voltage of the 1.5SMC30AHM3_A/I under a 10/1000 μs surge?
The 1.5SMC30AHM3_A/I has a maximum clamping voltage (VC) of 41.4 V at 36.2 A peak pulse current with a 10/1000 μs waveform. This value is measured per industry-standard test conditions and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring compatibility with 3.3 V, 5 V, and 24 V logic families downstream of the 1.5SMC30AHM3_A/I.
Is the 1.5SMC30AHM3_A/I qualified for automotive applications?
Yes, the 1.5SMC30AHM3_A/I is AEC-Q101 qualified, as confirmed by its HM3 suffix and Vishay documentation. This qualification validates its performance under temperature cycling, humidity, mechanical shock, and lifetime reliability tests required for under-hood and cabin electronics - making the 1.5SMC30AHM3_A/I suitable for use in engine control units, ADAS sensors, and infotainment power supplies.
What does the "HM3" suffix indicate in 1.5SMC30AHM3_A/I?
The "HM3" suffix in 1.5SMC30AHM3_A/I denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. The "H" indicates 7-inch tape-and-reel packaging (850 units per reel), while "I" specifies 13-inch tape-and-reel (3500 units per reel). This distinguishes it from commercial-grade M3 or HE3 variants and confirms full compliance with automotive environmental and reliability standards.
Can the 1.5SMC30AHM3_A/I be used in bidirectional configurations?
No, the 1.5SMC30AHM3_A/I is a unidirectional TVS diode, as indicated by its "A" suffix and cathode band marking. For bidirectional protection, Vishay offers the 1.5SMC30CA variant. Using the 1.5SMC30AHM3_A/I in reverse-biased configurations outside its specified unidirectional operation risks failure or unpredictable clamping behavior - always verify polarity alignment in layout for the 1.5SMC30AHM3_A/I.
What is the thermal resistance of the 1.5SMC30AHM3_A/I?
The 1.5SMC30AHM3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and junction-to-leads resistance (RθJL) of 15 °C/W, measured on standard 8.0 mm × 8.0 mm copper pads. These values enable accurate thermal modeling in PCB layouts and confirm that the 1.5SMC30AHM3_A/I can sustain its 1500 W peak pulse rating without exceeding TJ = 150 °C under defined mounting conditions.
1.5SMC30AHM3_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):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.4V
- Current - Peak Pulse (10/1000µs):
- 36.2A
- 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)
1.5SMC30AHM3_A/I FAQ
1.How can I place an order for 1.5SMC30AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC30AHM3_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 1.5SMC30AHM3_A/I reliable?
The price and inventory of 1.5SMC30AHM3_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 1.5SMC30AHM3_A/I is usually 5 days.
3.What payment methods are accepted for 1.5SMC30AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC30AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC30AHM3_A/I?
1.5SMC30AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC30AHM3_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 1.5SMC30AHM3_A/I?
For technical support, including 1.5SMC30AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC30AHM3_A/I requirements.
6.How does Aetrix verify that 1.5SMC30AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All 1.5SMC30AHM3_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 1.5SMC30AHM3_A/I meets industry standards.
7.What is the process for return or replacement of 1.5SMC30AHM3_A/I?
All 1.5SMC30AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC30AHM3_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 1.5SMC30AHM3_A/I part is unused and in its original packaging.
Return procedure for 1.5SMC30AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC30AHM3_A/I Tags
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DESD3V3E1BL-7B
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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