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Vishay General Semiconductor - Diodes Division 1.5SMC36AHM3_A/I
- Part No.:
- 1.5SMC36AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC36AHM3_A/I.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,420
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Product details
Overview
1.5SMC36AHM3_A/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMC (DO-214AB) package, rated for 36 V breakdown voltage (VBR = 34.2–37.8 V at 1 mA), 30.8 V stand-off voltage (VWM), and 49.9 V maximum clamping voltage (VC) at 30.1 A peak pulse current (IPPM). It delivers 1500 W peak pulse power (10/1000 μs waveform) and is AEC-Q101 qualified for automotive-grade reliability in power rail and signal line protection.
For engineers reviewing the 1.5SMC36AHM3_A/I datasheet, 1.5SMC36AHM3_A/I pinout, 1.5SMC36AHM3_A/I application, or 1.5SMC36AHM3_A/I equivalent, this part supports high-energy transient suppression in automotive ECUs, industrial sensor interfaces, and DC power input stages where low clamping voltage, fast response (<1 ns), and halogen-free RoHS compliance are critical selection criteria.
Technical Context
This unidirectional TVS diode operates by avalanche breakdown to clamp transient overvoltages above its VWM threshold while maintaining low leakage (<1 μA at 30.8 V). Its glass-passivated junction ensures stable breakdown characteristics and long-term reliability under repetitive surge stress.
Designed for surface-mount assembly on standard PCB copper pads (8.0 mm × 8.0 mm per terminal), it features MSL Level 1 moisture sensitivity, matte tin-plated leads compliant with J-STD-002, and thermal resistance of 75 °C/W (junction-to-ambient) - enabling robust operation up to TJ = 150 °C without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 34.2 V / 37.8 V at IT = 1 mA - defines precise avalanche onset range for predictable clamping behavior |
| VWM | 30.8 V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPPM | 49.9 V at 30.1 A - clamping voltage during 1500 W transient, limiting downstream IC stress |
| PPPM | 1500 W (10/1000 μs) - peak surge energy handling capacity for lightning and inductive switch-off events |
| IFSM | 200 A (8.3 ms half-sine) - surge current rating for unidirectional forward conduction during fault conditions |
| TJ max. | +150 °C - maximum junction temperature enabling use in under-hood automotive environments |
| Package | SMC (DO-214AB) - industry-standard 2-pin surface-mount outline with 7.75 mm × 6.22 mm footprint |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, unidirectional polarity marked with cathode band. Dimensions: 7.75 mm × 6.22 mm × 2.62 mm (L × W × H); terminals are matte tin-plated for solderability per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to protected circuit ground or low-side reference; conducts during positive transients when cathode is biased higher |
| Cathode | Avalanche clamping node / high-side connection | Connected to power rail or signal line to be protected; initiates breakdown when voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control, ADAS sensors, and body electronics |
| Halogen-free & RoHS-compliant (HM3 suffix) | Meets environmental compliance requirements for global automotive and industrial OEMs |
| 1500 W peak pulse power (10/1000 μs) | Withstands high-energy surges from load dump, ESD, and inductive switching without degradation |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes overvoltage stress on downstream MOSFETs, MCUs, and interface ICs during transients |
| MSL Level 1, 260 °C reflow compatible | Enables single-pass lead-free reflow assembly without moisture-related popcorning |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Clamping |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against ISO 7637-2 load dump pulses and alternator overshoot. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to shunt surge current before reaching LDOs or microcontrollers. Use Value: Clamps 49.9 V at 30.1 A, limiting voltage seen by downstream regulators to safe levels while surviving repeated 1500 W transients. |
Use Scenario: Safeguarding analog outputs (e.g., 4–20 mA loops) and digital I/O (CAN, LIN) from ESD and field-induced transients in factory automation. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted directly at connector entry point to suppress fast-rising transients before signal conditioning circuitry. Use Value: Sub-nanosecond response and 30.8 V stand-off ensure no interference with normal 24 V sensor supply or signal integrity during operation. |
| DC Power Supply Rail Protection | Motor Drive Gate Driver Clamp |
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters and DC/DC converters exposed to line surges or feedback loop faults. IC Role / Device Role / Timing Role: Parallel-connected TVS across output capacitor to clamp output overvoltage before damaging connected loads. Use Value: 1500 W rating handles sustained overvoltage events; 150 °C max junction temperature supports operation near hot power components. |
Use Scenario: Protecting high-side and low-side gate drivers in BLDC inverters from shoot-through-induced voltage spikes during switching transitions. IC Role / Device Role / Timing Role: Unidirectional TVS placed between gate and source of power MOSFETs to clamp Miller-induced spikes and prevent false turn-on. Use Value: Fast response and low incremental surge resistance limit gate voltage excursion to <50 V, preserving driver IC integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36A-E3/52 | Same VBR range (34.2–37.8 V) but SMB package (smaller footprint, lower PPPM = 600 W) | Limited to lower-energy transients; unsuitable for ISO 7637-2 load dump or high-current inductive spikes | Select only for space-constrained consumer or telecom designs where 600 W surge capability suffices |
| 1.5KE36A | Through-hole DO-201 package; identical electrical specs but higher thermal resistance (RθJA ≈ 100 °C/W) | Requires larger PCB area and manual or wave soldering; less suitable for automated SMT lines | Choose only for legacy through-hole designs or prototyping where rework tolerance is prioritized over production efficiency |
Compared with SMBJ36A-E3/52 and 1.5KE36A, the 1.5SMC36AHM3_A/I uniquely combines AEC-Q101 qualification, halogen-free construction, 1500 W surge rating, and SMC package - making it the preferred choice for volume automotive and industrial SMT production requiring full compliance and high-reliability transient immunity.
Availability
1.5SMC36AHM3_A/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and DC power supply rail protection requiring stable component supply, halogen-free compliance, and AEC-Q101 qualification.
Supply support for 1.5SMC36AHM3_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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific performance.
The 1.5SMC Series was developed for high-power, surface-mount transient suppression in harsh environments - targeting automotive, industrial, and telecommunications systems needing robust, standardized, and AEC-Q101-qualified protection solutions.
FAQ
What is the clamping voltage of the 1.5SMC36AHM3_A/I under a 1500 W transient?
The 1.5SMC36AHM3_A/I clamps to a maximum of 49.9 V at 30.1 A peak pulse current (IPPM) under a 10/1000 μs waveform - corresponding precisely to its 1500 W peak pulse power rating. This value is measured per standard test conditions (TA = 25 °C, mounted on 8.0 mm × 8.0 mm copper pads), and remains stable across its operating temperature range due to low temperature coefficient (0.099 %/°C).
Is the 1.5SMC36AHM3_A/I suitable for automotive applications?
Yes, the 1.5SMC36AHM3_A/I is AEC-Q101 qualified (indicated by the HM3 suffix and "_A" revision code), making it suitable for automotive applications including engine control modules, body electronics, and ADAS sensor interfaces. Its halogen-free, RoHS-compliant construction and MSL Level 1 rating further support automotive manufacturing requirements.
What does the "HM3_A/I" suffix mean in 1.5SMC36AHM3_A/I?
In 1.5SMC36AHM3_A/I, "HM3" denotes halogen-free and RoHS-compliant construction; "_A" indicates AEC-Q101 qualification for the 6.8 V to 220 V voltage range; and "/I" specifies packaging in 13-inch tape-and-reel format with 3500 units per reel - optimized for high-volume SMT placement.
How does the 1.5SMC36AHM3_A/I compare to bidirectional TVS diodes?
The 1.5SMC36AHM3_A/I is unidirectional and intended for DC power line or signal line protection where polarity is fixed. Unlike bidirectional variants (e.g., 1.5SMC36CA), it blocks reverse voltage up to −30.8 V but conducts only in forward avalanche mode - offering tighter VWM control and lower capacitance than bidirectional equivalents at the same voltage rating.
What is the thermal resistance of the 1.5SMC36AHM3_A/I, and how does it affect layout?
The 1.5SMC36AHM3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on minimum recommended 8.0 mm × 8.0 mm copper pads per terminal. To maintain TJ ≤ 150 °C under full 1500 W surge duty, designers must ensure adequate copper area and avoid thermal bottlenecks - especially in automotive under-hood applications where ambient temperatures exceed 85 °C.
1.5SMC36AHM3_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):
- 30.8V
- Voltage - Breakdown (Min):
- 34.2V
- Voltage - Clamping (Max) @ Ipp:
- 49.9V
- Current - Peak Pulse (10/1000µs):
- 30.1A
- 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)
1.5SMC36AHM3_A/I FAQ
1.How can I place an order for 1.5SMC36AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC36AHM3_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 1.5SMC36AHM3_A/I reliable?
The price and inventory of 1.5SMC36AHM3_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 1.5SMC36AHM3_A/I is usually 5 days.
3.What payment methods are accepted for 1.5SMC36AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC36AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC36AHM3_A/I?
1.5SMC36AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC36AHM3_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 1.5SMC36AHM3_A/I?
For technical support, including 1.5SMC36AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC36AHM3_A/I requirements.
6.How does Aetrix verify that 1.5SMC36AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All 1.5SMC36AHM3_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 1.5SMC36AHM3_A/I meets industry standards.
7.What is the process for return or replacement of 1.5SMC36AHM3_A/I?
All 1.5SMC36AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC36AHM3_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 1.5SMC36AHM3_A/I part is unused and in its original packaging.
Return procedure for 1.5SMC36AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC36AHM3_A/I Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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