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Vishay General Semiconductor - Diodes Division 1.5SMC30AHM3_A/H
- Part No.:
- 1.5SMC30AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC30AHM3_A/H.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,438
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Product details
Overview
1.5SMC30AHM3_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 30 V standoff voltage (VWM), 34.2 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 ECUs, industrial motor drives, and telecom power supplies.
For engineers reviewing the 1.5SMC30AHM3_A/H datasheet, 1.5SMC30AHM3_A/H pinout, 1.5SMC30AHM3_A/H application, or 1.5SMC30AHM3_A/H equivalent, key selection criteria include clamping performance under 10/1000 μs transients, AEC-Q101 qualification status, thermal resistance (RθJA = 75 °C/W), and compatibility with SMC (DO-214AB) PCB footprints and reflow profiles.
Technical Context
This device operates as a unidirectional avalanche diode, triggering when reverse voltage exceeds its specified breakdown threshold (VBR = 34.2–37.8 V), then clamping transient energy to ≤41.4 V at 36.2 A. Its glass-passivated junction ensures stable leakage (<1.0 μA at 25.6 V) and fast response time (<1.0 ps), critical for protecting MOSFET gates and microcontroller I/Os.
Rated for 150 °C maximum junction temperature and qualified to AEC-Q101, the 1.5SMC30AHM3_A/H supports automotive-grade reliability. Its SMC package delivers low incremental surge resistance and meets J-STD-020 MSL Level 1 (260 °C peak reflow), enabling direct integration into high-volume automated assembly lines without derating concerns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 25.6 V - Maximum continuous reverse operating voltage before conduction begins; defines safe DC/AC rail margin. |
| VBR (Breakdown) | 34.2–37.8 V at 1.0 mA - Guaranteed avalanche initiation range; ensures predictable turn-on during transients. |
| VC (Clamping) | 41.4 V at 36.2 A (10/1000 μs) - Peak voltage seen by protected circuit under worst-case surge; determines downstream component stress. |
| PPPM | 1500 W - Peak transient power absorption capacity; enables protection against lightning-induced surges per IEC 61000-4-5. |
| ID (Leakage) | <1.0 μA at 25.6 V - Ultra-low reverse leakage preserves battery life and avoids false triggering in low-power sensor nodes. |
| TJ max. | +150 °C - Enables operation in under-hood automotive environments and enclosed industrial enclosures without thermal shutdown. |
| RθJA | 75 °C/W - Thermal resistance from junction to ambient on standard 8 mm × 8 mm copper pads; informs heatsinking requirements. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, RoHS-compliant and halogen-free (HM3 suffix), MSL Level 1 rated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VREV > VBR. |
| Anode | Reference/ground return | Typically tied to system ground or low-impedance return path; completes clamping loop during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, ADAS sensors, and infotainment power rails. |
| 1500 W peak pulse rating (10/1000 μs) | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-to-ground) without degradation. |
| Glass-passivated junction | Ensures long-term stability of VBR and leakage across temperature and lifetime cycling. |
| Low-profile SMC package | Enables high-density PCB layouts and compatibility with standard pick-and-place equipment (J-STD-020 compliant). |
| Halogen-free & RoHS-compliant (HM3) | Meets global environmental compliance mandates including EU RoHS Directive 2011/65/EU and JEDEC JESD201 Class 2. |
Applications
| Automotive Power Rail Protection | Industrial Motor Drive Control |
|---|---|
Use Scenario: Protecting 24 V supply inputs in body control modules (BCM) against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC converter input to clamp transients before regulation stage. Use Value: Limits voltage excursion to ≤41.4 V during 100 V/100 ms load dump events, preventing damage to downstream PMICs and microcontrollers. |
Use Scenario: Safeguarding gate drivers and feedback sensing lines in variable-frequency AC motor inverters. IC Role / Device Role / Timing Role: Clamping inductive kickback from IGBT/MOSFET switching on PWM control signals and current-sense paths. Use Value: Suppresses >1 kV spikes within nanoseconds, preserving signal integrity and avoiding false fault triggering in isolated gate drivers. |
| Telecom DC Power Input | Consumer Appliance Mainboard |
Use Scenario: Securing -48 V telecom rectifier outputs against lightning-induced surges entering central office equipment. IC Role / Device Role / Timing Role: Primary-level TVS on input bulk capacitor rail, coordinated with upstream GDTs and downstream polymer PTCs. Use Value: Absorbs 1500 W surge energy while maintaining clamping below -42 V, ensuring uninterrupted operation of PoE controllers and PHY ICs. |
Use Scenario: Shielding MCU reset lines and USB interface pins in smart home hubs and white goods control boards. IC Role / Device Role / Timing Role: Low-capacitance unidirectional suppression on 3.3 V/5 V logic rails adjacent to ESD-prone connectors. Use Value: Delivers <1.0 μA leakage at 25.6 V and sub-ns response, eliminating standby current drain and data corruption risks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ30A-E3/52 | Same VWM (25.6 V), lower PPPM (600 W), SMB package (smaller footprint, higher RθJA = 90 °C/W) | Limited to lower-energy transients; unsuitable for automotive load dump or telecom lightning standards | Select when board space is constrained and surge threat level is limited to IEC 61000-4-2 ESD only. |
| 1.5KE30A | Through-hole DO-201 package, identical electrical specs but no AEC-Q101 qualification or halogen-free certification | Not approved for automotive production; requires manual insertion or wave soldering; lacks MSL Level 1 reflow support | Choose only for prototyping or non-automotive industrial use where automated SMT is unavailable. |
Compared with SMBJ30A-E3/52 and 1.5KE30A, the 1.5SMC30AHM3_A/H uniquely combines AEC-Q101 qualification, 1500 W surge rating, halogen-free compliance, and SMC package suitability for high-reliability automotive and telecom designs - making it the only option meeting full production requirements for under-hood and outdoor infrastructure deployments.
Availability
1.5SMC30AHM3_A/H is available at Aetrix Electronics and suitable for automotive electronics, industrial motor controls, and telecom power systems requiring stable component supply, long-term lifecycle assurance, and certified AEC-Q101 performance.
Supply support for 1.5SMC30AHM3_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, efficiency, and application-specific optimization.
The 1.5SMC Series was engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where failure resilience and consistent clamping performance are mission-critical.
FAQ
What is the clamping voltage of the 1.5SMC30AHM3_A/H under a 10/1000 μs surge?
The 1.5SMC30AHM3_A/H exhibits a maximum clamping voltage (VC) of 41.4 V when subjected to a 36.2 A peak pulse current with a 10/1000 μs waveform. This value is measured per standard test conditions (TA = 25 °C, mounted on 8.0 mm × 8.0 mm copper pads) and defines the upper voltage limit imposed on protected circuits during surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is the 1.5SMC30AHM3_A/H qualified for automotive applications?
Yes, the 1.5SMC30AHM3_A/H carries AEC-Q101 qualification, confirmed by its HM3 suffix and documentation in Vishay's 1.5SMC series datasheet (Document Number: 88303). This certification validates its reliability for automotive powertrain, chassis, and body electronics - including operation across -65 °C to +150 °C junction temperature and resistance to mechanical shock, vibration, and humidity cycling.
What does the "HM3" suffix indicate in 1.5SMC30AHM3_A/H?
The "HM3" suffix in 1.5SMC30AHM3_A/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from commercial-grade E3/M3 versions and confirms compliance with JEDEC JESD201 Class 2 whisker resistance, UL 94 V-0 flammability, and lead-free reflow compatibility up to 260 °C peak temperature (MSL Level 1).
Can the 1.5SMC30AHM3_A/H replace a 1.5SMC30A-E3 in an existing design?
The 1.5SMC30AHM3_A/H is electrically identical to 1.5SMC30A-E3 in VWM, VBR, VC, and PPPM, but adds AEC-Q101 qualification and halogen-free materials. No PCB layout changes are needed - both use the same SMC (DO-214AB) package and pinout. However, the HM3 version requires verification of supply chain traceability and may carry different reel packaging (7" tape, H-coded).
What is the maximum reverse leakage current for the 1.5SMC30AHM3_A/H at rated standoff voltage?
At its rated standoff voltage of 25.6 V and TA = 25 °C, the 1.5SMC30AHM3_A/H guarantees a maximum reverse leakage current (ID) of 1.0 μA. This ultra-low leakage preserves power efficiency in always-on systems such as automotive telematics modules and battery-backed industrial sensors - directly supporting low-quiescent-current design goals.
1.5SMC30AHM3_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):
- 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/H FAQ
1.How can I place an order for 1.5SMC30AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC30AHM3_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 1.5SMC30AHM3_A/H reliable?
The price and inventory of 1.5SMC30AHM3_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 1.5SMC30AHM3_A/H is usually 5 days.
3.What payment methods are accepted for 1.5SMC30AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC30AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC30AHM3_A/H?
1.5SMC30AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC30AHM3_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 1.5SMC30AHM3_A/H?
For technical support, including 1.5SMC30AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC30AHM3_A/H requirements.
6.How does Aetrix verify that 1.5SMC30AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All 1.5SMC30AHM3_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 1.5SMC30AHM3_A/H meets industry standards.
7.What is the process for return or replacement of 1.5SMC30AHM3_A/H?
All 1.5SMC30AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC30AHM3_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 1.5SMC30AHM3_A/H part is unused and in its original packaging.
Return procedure for 1.5SMC30AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC30AHM3_A/H Tags
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