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Vishay General Semiconductor - Diodes Division 1.5SMC36AHM3/H
- Part No.:
- 1.5SMC36AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC36AHM3/H.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,333
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Product details
Overview
1.5SMC36AHM3/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 36 V breakdown voltage (VBR min/max: 34.2–37.8 V), 30.8 V standoff voltage (VWM), 49.9 V clamping voltage (VC) at 30.1 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive power modules, industrial motor drives, and telecom interface protection.
For engineers reviewing the 1.5SMC36AHM3/H datasheet, 1.5SMC36AHM3/H pinout, 1.5SMC36AHM3/H application, or 1.5SMC36AHM3/H equivalent, key selection considerations include its AEC-Q101 qualification, halogen-free RoHS-compliant HM3 suffix, SMC (DO-214AB) package thermal performance (RθJA = 75 °C/W), and unidirectional polarity with cathode band marking.
Technical Context
This TVS diode operates as a clamping device that diverts surge energy away from sensitive downstream circuitry upon exceeding its reverse standoff voltage. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1 µA at VWM), while the low incremental surge resistance enables rapid voltage limiting during transients such as ESD, lightning-induced surges, and inductive switching spikes.
The 1.5SMC36AHM3/H is rated for 150 °C maximum junction temperature and meets J-STD-020 MSL Level 1 (peak reflow ≤260 °C). Its 200 A IFSM rating supports high-energy single-event surges, and its bidirectional counterpart variant (e.g., 1.5SMC36CHM3/H) is not electrically interchangeable due to polarity and clamping symmetry differences.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 34.2 V / 37.8 V - Ensures reliable triggering above normal operating voltage while accommodating manufacturing tolerance |
| VWM | 30.8 V - Maximum continuous reverse operating voltage before significant leakage begins; sets system rail margin |
| VC @ IPPM | 49.9 V at 30.1 A - Clamped voltage seen by protected IC during 10/1000 µs surge; defines worst-case stress on downstream devices |
| PPPM | 1500 W - Peak transient power handling capability under standardized surge waveform; validates robustness against IEC 61000-4-5 Level 4 |
| IFSM | 200 A - Single half-sine surge current rating (8.3 ms); supports protection of DC bus inputs against motor commutation spikes |
| TJ max | +150 °C - Enables operation in under-hood automotive environments and high-ambient industrial enclosures |
| Package | SMC (DO-214AB) - Standardized surface-mount outline with 8.0 mm × 8.0 mm copper pad requirement for thermal derating compliance |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with matte tin-plated leads; cathode indicated by a band on the body; polarity-critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or low-voltage reference; completes conduction path during reverse-biased clamping |
| Cathode | High-side connection point | Connected to protected line (e.g., 24 V rail); reverse-biased during normal operation; conducts when Vin > VC |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| Halogen-free & RoHS-compliant (HM3) | Meets JEDEC J-STD-20 and JESD201 Class 2 whisker resistance; supports green manufacturing and end-of-life compliance |
| 1500 W peak pulse power (10/1000 µs) | Withstands IEC 61000-4-5 combination wave surges up to ±2 kV (line-to-earth) without degradation |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes overvoltage overshoot during fast transients, reducing risk of latch-up or gate oxide damage in MOSFETs/ICs |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow profile compatibility without baking preconditioning |
Applications
| Automotive Power Distribution | Industrial Motor Drive Control |
|---|---|
Use Scenario: Protection of 24 V battery-fed ECUs against load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC input stage. Use Value: Clamps transients up to 49.9 V, preventing overvoltage shutdown or regulator failure in ADAS domain controllers. |
Use Scenario: Guarding gate driver supply lines against Miller-induced spikes during IGBT switching. IC Role / Device Role / Timing Role: Fast-response clamp on isolated 15 V gate bias rail. Use Value: Limits voltage excursion to <50 V within nanoseconds, avoiding unintended IGBT turn-on and shoot-through risk. |
| Telecom Interface Protection | Consumer Power Adapter Input |
Use Scenario: Surge suppression on PoE-powered Ethernet PHY lines exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary-level TVS on 48 V DC input before DC-DC converter. Use Value: Absorbs 1500 W pulses per IEC 61000-4-5, maintaining PHY IC integrity during field deployment. |
Use Scenario: Input-stage protection in universal AC/DC adapters subjected to mains-borne transients. IC Role / Device Role / Timing Role: First-line defense on rectified DC bus before primary-side controller. Use Value: Withstands repetitive 10/1000 µs surges without parameter drift, extending adapter MTBF in global markets. |
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-HF | Lower PPPM (600 W), SMB package (smaller footprint, higher RθJA = 85 °C/W) | Not suitable for 1500 W surge requirements; limited to lower-energy interfaces like USB or sensor buses | Select only where space constraints outweigh surge margin needs and duty cycle is strictly controlled |
| 1.5KE36A | Through-hole DO-201 package; identical VBR/VC specs but no AEC-Q101 or MSL Level 1 rating | Lacks automotive qualification and reflow compatibility; unsuitable for SMT production or under-hood use | Acceptable for legacy through-hole designs or non-automotive industrial prototypes only |
Compared with SMBJ36A-HF and 1.5KE36A, the 1.5SMC36AHM3/H uniquely delivers automotive-grade reliability, full 1500 W surge capacity in an SMT package, and halogen-free compliance - making it the only option qualified for volume production in AEC-Q100-compliant vehicle subsystems.
Availability
1.5SMC36AHM3/H is available at Aetrix Electronics and suitable for automotive electronics, industrial motor control systems, and telecom infrastructure requiring stable component supply with guaranteed long-term sourcing and traceable lot history.
Supply support for 1.5SMC36AHM3/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 high-reliability, high-power, and automotive-qualified components.
The 1.5SMC Series was developed specifically for surface-mount transient suppression in harsh environments - targeting automotive, industrial, and telecom applications demanding AEC-Q101 validation, high surge immunity, and consistent clamping performance across temperature.
FAQ
What is the clamping voltage of the 1.5SMC36AHM3/H under maximum surge conditions?
The 1.5SMC36AHM3/H has a maximum clamping voltage (VC) of 49.9 V at 30.1 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured per standard test conditions and defines the upper voltage limit imposed on protected circuitry during a full-rated surge event. The 1.5SMC36AHM3/H maintains this clamping performance across its specified operating temperature range (-65 °C to +150 °C).
Is the 1.5SMC36AHM3/H suitable for automotive applications?
Yes, the 1.5SMC36AHM3/H is AEC-Q101 qualified and carries the HM3 suffix indicating halogen-free, RoHS-compliant construction with validated reliability for automotive use. It meets stress test requirements including temperature cycling, high-temperature reverse bias, and ESD, and is rated for operation up to +150 °C junction temperature - making the 1.5SMC36AHM3/H appropriate for engine control units, body electronics, and ADAS power domains.
How does the 1.5SMC36AHM3/H differ from bidirectional variants like 1.5SMC36CHM3/H?
The 1.5SMC36AHM3/H is unidirectional and features a cathode band for polarity-sensitive placement, whereas 1.5SMC36CHM3/H is bidirectional with symmetrical clamping in both directions and no polarity marking. Their VBR, VC, and PPPM values differ slightly due to internal structure - the 1.5SMC36AHM3/H has VBR = 34.2–37.8 V and VC = 49.9 V, while the bidirectional version has VBR = 34.2–37.8 V (both polarities) and VC = 59.3 V. They are not functionally interchangeable.
What is the thermal resistance of the 1.5SMC36AHM3/H in standard mounting conditions?
The 1.5SMC36AHM3/H has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on the minimum recommended 8.0 mm × 8.0 mm copper pads per terminal. This value assumes FR-4 PCB with 1 oz copper and no additional heatsinking. For sustained power dissipation, derating curves in Figure 2 of the Vishay datasheet (Doc. #88303) must be applied above 25 °C ambient.
Does the 1.5SMC36AHM3/H require special PCB layout considerations?
Yes - the 1.5SMC36AHM3/H requires 8.0 mm × 8.0 mm copper pads per terminal to meet its rated 1500 W pulse power and thermal specifications. Traces should be short and wide to minimize inductance, and the device must be placed as close as possible to the protected node. The cathode band must align with the high-side net; incorrect orientation renders the 1.5SMC36AHM3/H ineffective for reverse-polarity transients.
1.5SMC36AHM3/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:
- Discontinued at Digi-Key
- 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/H FAQ
1.How can I place an order for 1.5SMC36AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC36AHM3/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 1.5SMC36AHM3/H reliable?
The price and inventory of 1.5SMC36AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC36AHM3/H is usually 5 days.
3.What payment methods are accepted for 1.5SMC36AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC36AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC36AHM3/H?
1.5SMC36AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC36AHM3/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 1.5SMC36AHM3/H?
For technical support, including 1.5SMC36AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC36AHM3/H requirements.
6.How does Aetrix verify that 1.5SMC36AHM3/H is sourced from the original manufacturer or authorized distributors?
All 1.5SMC36AHM3/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 1.5SMC36AHM3/H meets industry standards.
7.What is the process for return or replacement of 1.5SMC36AHM3/H?
All 1.5SMC36AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC36AHM3/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 1.5SMC36AHM3/H part is unused and in its original packaging.
Return procedure for 1.5SMC36AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC36AHM3/H Tags
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