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Taiwan Semiconductor Corporation 1.5SMC36H
- Part No.:
- 1.5SMC36H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC36H.pdf
- Description:
- 1500W, 36V, 10%, UNIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:6,715
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Product details
Overview
1.5SMC36H from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, rated for 1500W peak pulse power, 32.4V to 39.6V breakdown voltage (VBR), and 52.0V maximum clamping voltage (VC) at 30A peak impulse current. It protects automotive and industrial power rails against ISO 7637-2 pulses and ESD events.
For engineers reviewing the 1.5SMC36H datasheet, 1.5SMC36H pinout, 1.5SMC36H application, or 1.5SMC36H equivalent, this device serves as a high-energy, AEC-Q101-qualified TVS for 24V system DC bus protection, with verified thermal resistance (RθJA = 50°C/W), low leakage (<1µA @ 29.1V), and fast sub-1ps response.
Technical Context
The 1.5SMC36H operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its VBR range (32.4–39.6V at 1mA test current). Its glass-passivated junction ensures stable clamping performance under repetitive transients, and it meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b waveforms for automotive load-dump and inductive switching immunity.
Designed for surface-mount assembly on PCBs with tight thermal constraints, the device features RθJC = 15°C/W and operates across –55°C to +150°C junction temperature. Its 29.1V working stand-off voltage (VWM) provides margin above nominal 24V systems while maintaining low blocking leakage (<1µA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 32.4V / 39.6V - Ensures reliable turn-on above 24V rail with safety margin against tolerance drift |
| VWM | 29.1V - Maximum continuous reverse voltage before significant leakage; compatible with 24V nominal systems |
| VC @ IPPM | 52.0V @ 30A - Clamps surge energy to safe levels for downstream 60V-rated MOSFETs and controllers |
| PPK | 1500W - Handles high-energy transients such as ISO 7637-2 Pulse 1 (inductive switch-off) without failure |
| IR @ VWM | <1µA - Negligible standby power loss and minimal impact on high-impedance sensing circuits |
| TJ max | +150°C - Supports operation in under-hood automotive environments and enclosed industrial enclosures |
| RθJA | 50°C/W - Enables thermal design with standard 1 oz copper on 2-layer boards without forced airflow |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, unidirectional configuration with cathode band marking. Matte tin-plated leads, RoHS and halogen-free compliant, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/Line side (cathode-banded end is cathode) | Connected to protected line (e.g., 24V supply); reverse-biased during normal operation |
| Cathode | Ground/reference side | Connected to system ground or low-impedance return path; conducts during overvoltage clamp event |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress requirements |
| Glass passivated junction | Stable VBR and low parameter drift over lifetime and temperature extremes |
| ISO 7637-2 compliance | Guaranteed immunity to standardized automotive transients (Pulse 1/2a/2b/3a/3b) without external filtering |
| Fast response time | <1.0 ps - Limits voltage overshoot before protection engages, critical for sensitive gate drivers and ADC inputs |
| DO-214AB mechanical robustness | UL 94V-0 molding compound and JESD201 Class 2 whisker resistance ensure long-term solder joint integrity |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Module |
|---|---|
Use Scenario: Protecting 24V CAN-powered BCM power input from load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed at main 24V entry point, clamping transients before DC-DC converters and microcontrollers. Use Value: Withstands 1500W ISO 7637-2 Pulse 5a surges and maintains <1µA leakage at 29.1V, preserving sleep-mode current budget. | Use Scenario: Safeguarding 24V digital input channels of programmable logic controllers against field-wiring induced surges. IC Role / Device Role / Timing Role: Front-end transient suppression on optocoupler input side, placed before series current-limiting resistor. Use Value: 52.0V clamping limits voltage seen by optocoupler LED to safe levels, enabling direct interface without additional Zener regulation. |
| Telecom Power Feeding Interface | Motor Drive DC Bus Protection |
Use Scenario: Shielding PoE+ midspan power feeding circuitry from lightning-induced surges on 48V DC distribution lines. IC Role / Device Role / Timing Role: Secondary-level TVS on DC output stage, coordinated with upstream GDT and primary MOV. Use Value: Sub-1ps response ensures clamping initiates before secondary-side MOSFETs experience avalanche stress during fast-rising transients. | Use Scenario: Protecting IGBT gate driver supply rails in HVAC inverter modules exposed to motor back-EMF spikes. IC Role / Device Role / Timing Role: Localized TVS on 15V auxiliary supply rail feeding isolated gate drivers. Use Value: 30A peak impulse rating handles repeated commutation-induced transients; 150°C max junction temperature supports operation near heatsinks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36A | 600W rating, DO-214AA (SMB) package, lower PPK, same VBR range | Not suitable for ISO 7637-2 Pulse 1 or sustained load-dump events requiring 1500W | Select 1.5SMC36H when full automotive load-dump immunity is required; SMBJ36A fits space-constrained designs with lower surge exposure. |
| 1.5KE36A | Through-hole TO-204AA (DO-41), 1500W, but slower response (>1ns) and no AEC-Q101 qualification | Lacks automotive qualification and surface-mount compatibility; unsuitable for automated SMT lines | Choose 1.5SMC36H for AEC-Q101-compliant SMT production; 1.5KE36A may be used in legacy through-hole prototyping only. |
Compared with SMBJ36A and 1.5KE36A, the 1.5SMC36H uniquely combines 1500W surge capability, AEC-Q101 qualification, sub-1ps response, and DO-214AB SMT packaging-enabling robust, automated, automotive-grade transient protection where space, reliability, and waveform fidelity are critical.
Availability
1.5SMC36H is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC input stages, telecom power interfaces, and motor drive auxiliary supplies requiring stable component supply and AEC-Q101 compliance.
Supply support for 1.5SMC36H 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in TVS diodes, rectifiers, and power devices since 1979.
The 1.5SMCxxH series is part of TSC's AEC-Q101-qualified surface-mount TVS portfolio, engineered specifically for automotive and industrial DC power rail protection against ISO 7637-2 and IEC 61000-4-5 threats.
FAQ
What is the polarity configuration of the 1.5SMC36H?
The 1.5SMC36H is a unidirectional TVS diode, with cathode indicated by a band on the DO-214AB package. It conducts only during reverse overvoltage events and blocks forward current up to 3.5V at 50A, per datasheet specifications. This polarity enables precise placement on positive-rail protection paths without unintended conduction during normal operation.
Does the 1.5SMC36H meet automotive qualification standards?
Yes, the 1.5SMC36H is AEC-Q101 qualified and explicitly tested to meet ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b transient immunity requirements. Its qualification covers temperature cycling, high-temperature reverse bias, and ESD robustness-making it suitable for under-hood and chassis-mounted automotive applications where reliability is mandated.
What is the maximum clamping voltage of the 1.5SMC36H and at what current is it specified?
The 1.5SMC36H has a maximum clamping voltage (VC) of 52.0V, measured at 30A peak impulse current (IPPM) using the 10/1000μs waveform defined in Fig.5 of the datasheet. This value ensures downstream components rated for 60V operation remain within safe operating limits during worst-case surge events.
Can the 1.5SMC36H be used in bidirectional configurations?
No-the 1.5SMC36H is unidirectional only. For bidirectional protection, TSC specifies variants with "CH" or "CAH" suffixes (e.g., 1.5SMC36CH). Using the 1.5SMC36H in reverse-biased AC or bipolar signal paths risks permanent damage due to lack of forward conduction rating in the opposite direction.
What is the thermal resistance and how does it affect PCB layout for the 1.5SMC36H?
The 1.5SMC36H has RθJA = 50°C/W and RθJC = 15°C/W. To maintain TJ ≤ 150°C at full 1500W surge, PCB layout must provide adequate copper area-minimum 100 mm² of 1 oz copper per pad connected to internal ground planes. Thermal vias under pads significantly improve heat dissipation in high-repetition-rate surge environments.
1.5SMC36H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AB, SMC
- Series:
- 1.5SMC
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 29.1V
- Voltage - Breakdown (Min):
- 32.4V
- Voltage - Clamping (Max) @ Ipp:
- 52V
- Current - Peak Pulse (10/1000µs):
- 30A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
1.5SMC36H FAQ
1.How can I place an order for 1.5SMC36H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC36H 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 1.5SMC36H reliable?
The price and inventory of 1.5SMC36H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC36H is usually 5 days.
3.What payment methods are accepted for 1.5SMC36H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC36H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC36H?
1.5SMC36H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC36H 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 1.5SMC36H?
For technical support, including 1.5SMC36H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC36H requirements.
6.How does Aetrix verify that 1.5SMC36H is sourced from the original manufacturer or authorized distributors?
All 1.5SMC36H 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 1.5SMC36H meets industry standards.
7.What is the process for return or replacement of 1.5SMC36H?
All 1.5SMC36H units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC36H, 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 1.5SMC36H part is unused and in its original packaging.
Return procedure for 1.5SMC36H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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