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Taiwan Semiconductor Corporation 1.5SMC36C
- Part No.:
- 1.5SMC36C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC36C.pdf
- Description:
- 1500W, 36V, 10%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:7,164
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Product details
Overview
1.5SMC36C from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, designed for high-energy surge protection in power rails and signal lines. It features a 32.4 V minimum breakdown voltage (VBR), 52.0 V maximum clamping voltage (VC) at 30 A peak pulse current, and 1500 W peak pulse power rating at 1 ms - suitable for automotive load-dump and industrial I/O port protection.
For engineers reviewing the 1.5SMC36C datasheet, 1.5SMC36C pinout, 1.5SMC36C application, or 1.5SMC36C equivalent, key selection criteria include working stand-off voltage (29.1 V), low leakage (<1 µA @ VWM), fast sub-nanosecond response, and ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance - critical for robust ESD and lightning-induced transient suppression in DC power systems.
Technical Context
The 1.5SMC36C operates as a unidirectional avalanche diode with glass-passivated junction, enabling precise voltage clamping during transients while maintaining low leakage under normal operating conditions. Its thermal resistance (RθJA = 50 °C/W) and junction temperature range (–55 to +150 °C) support reliable operation in automotive under-hood and industrial control environments.
It delivers 1500 W peak pulse power per 1 ms waveform (10/1000 µs), with clamping performance validated at 30 A IPPM and VC ≤ 52.0 V - ensuring downstream ICs remain within safe operating voltage margins during standardized surge events defined in IEC 61000-4-5 and ISO 7637-2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 32.4 V / 39.6 V @ 1.0 mA test current - defines reliable avalanche initiation threshold across temperature and unit variation |
| VWM | 29.1 V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPPM | 52.0 V @ 30 A - clamped voltage seen by protected circuit during worst-case 1500 W transient |
| IR @ VWM | <1 µA - ensures negligible standby power loss and signal integrity in high-impedance circuits |
| PPK | 1500 W - peak surge energy absorption capability per single 1 ms pulse, derated above 25 °C ambient |
| TJ max | +150 °C - enables use in under-hood automotive and high-temperature industrial enclosures |
| Package | DO-214AB (SMC) - industry-standard surface-mount outline with 0.210 g mass and UL 94V-0 molding compound |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, unidirectional configuration with cathode band marking. Case meets JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/Line side | Connected to protected line (e.g., 24 V rail); conducts during forward surge only in unidirectional mode |
| Cathode | Clamp/Return side | Connected to ground or lower-potential reference; avalanche conduction occurs here during reverse transients |
Key Features
| Feature | Design Value |
|---|---|
| Clamping performance | VC = 52.0 V @ 30 A ensures protected ICs stay below absolute maximum ratings during ISO 7637-2 Pulse 5a load dump |
| Response time | <1.0 ps enables suppression of ESD events (IEC 61000-4-2) before sensitive logic is damaged |
| Leakage control | <1 µA @ 29.1 V minimizes quiescent current impact in battery-powered or high-precision sensor front-ends |
| Thermal robustness | RθJC = 15 °C/W supports sustained surge handling without thermal runaway in compact PCB layouts |
| Automated assembly | DO-214AB footprint and matte tin-plated leads ensure reliable reflow soldering per J-STD-002 |
Applications
| Automotive Power Distribution | Industrial PLC Analog Inputs |
|---|---|
Use Scenario: Protection of 24 V supply rail against load-dump transients in vehicle body control modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery feed and LDO input to clamp surges up to 120 V. Use Value: Limits voltage excursion to ≤52.0 V during 1500 W pulses, preventing damage to downstream regulators and microcontrollers. |
Use Scenario: Guarding 4–20 mA current-loop inputs in programmable logic controllers exposed to field wiring surges. IC Role / Device Role / Timing Role: Bidirectional protection (using 1.5SMC36CA variant) across differential analog inputs to absorb induced lightning transients. Use Value: Maintains signal integrity with <1 µA leakage at 29.1 V stand-off, avoiding offset errors in precision measurement circuits. |
| Telecom DC Power Feeds | Consumer USB-C Power Delivery |
Use Scenario: Input-stage surge suppression on –48 V telecom rectifier outputs feeding base station backplanes. IC Role / Device Role / Timing Role: Unidirectional TVS connected anode-to-rail, cathode-to-ground to shunt negative-going spikes. Use Value: Withstands repeated 10/1000 µs surges per IEC 61000-4-5 Level 4 while maintaining VWM margin over –48 V nominal. |
Use Scenario: Overvoltage clamp on VBUS line of USB-C receptacles subjected to hot-plug and adapter fault conditions. IC Role / Device Role / Timing Role: Fast-response TVS placed between VBUS and GND to limit transients before USB PD controller ICs. Use Value: Sub-nanosecond response and 52.0 V clamping prevent latch-up or gate oxide rupture in USB-C power switches rated for 20 V max. |
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 (Bourns) | Same DO-214AA (SMB) package; 36 V VWM, 58.1 V VC @ 26 A; 600 W rating | Lower peak power (600 W vs. 1500 W) limits suitability for automotive load-dump | Select when space-constrained layouts require smaller SMB footprint and surge energy is ≤600 W |
| SMCJ36A (Littelfuse) | Identical DO-214AB (SMC) package; 36 V VWM, 58.1 V VC @ 26 A; 1500 W rating | Higher VC (58.1 V vs. 52.0 V) reduces voltage margin for 3.3 V/5 V logic protection | Prefer when cross-manufacturer sourcing is required and 6 V higher clamping is acceptable for protected circuit VMAX |
Compared with 1.5SMC36C, SMBJ36A offers smaller size but lower surge capacity, while SMCJ36A matches power rating but clamps 6.1 V higher - making 1.5SMC36C optimal for designs requiring lowest possible clamping voltage in DO-214AB form factor.
Availability
1.5SMC36C is available at Aetrix Electronics and suitable for automotive power distribution, industrial PLC analog inputs, telecom DC feeds, and consumer USB-C power delivery requiring stable component supply and full compliance with ISO 7637-2 and IEC 61000-4-5 standards.
Supply support for 1.5SMC36C 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 semiconductor manufacturer specializing in discrete power devices, TVS diodes, and rectifiers with global AEC-Q101 qualified production lines.
The 1.5SMC series was developed for high-reliability transient suppression in automotive, industrial, and telecom infrastructure - emphasizing tight VBR tolerance, low leakage, and repeatable clamping performance across temperature.
FAQ
What is the polarity configuration of the 1.5SMC36C?
The 1.5SMC36C is a unidirectional TVS diode with cathode band marking indicating the cathode terminal. It conducts in avalanche mode only during reverse-biased transients - forward conduction is limited to 3.5 V at 50 A per datasheet specifications. This configuration makes it ideal for DC rail protection where polarity is fixed.
Does the 1.5SMC36C meet automotive surge immunity standards?
Yes, the 1.5SMC36C meets ISO 7637-2 requirements for Pulse 1 (inductive load disconnect), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling), verified through standardized 10/1000 µs waveform testing. Its 1500 W rating and 52.0 V clamping enable compliance with LV-124 and similar OEM specifications.
How does the 1.5SMC36C compare to bidirectional variants like 1.5SMC36CA?
The 1.5SMC36C is unidirectional, while 1.5SMC36CA provides symmetrical clamping in both directions - essential for AC-coupled or floating signal lines. The 1.5SMC36C offers lower leakage and tighter VBR tolerance in DC applications, whereas the CA version sacrifices some leakage performance for dual-polarity protection.
What is the maximum steady-state power dissipation for the 1.5SMC36C?
The 1.5SMC36C has a steady-state power dissipation (PD) of 6.5 W at TA = 25 °C, derated linearly above that temperature per the datasheet's Fig.2. This rating applies only to continuous DC or low-frequency conditions - not transient suppression, where its 1500 W peak rating governs.
Is the 1.5SMC36C RoHS and halogen-free compliant?
Yes, the 1.5SMC36C is RoHS compliant and halogen-free per IEC 61249-2-21. Its molding compound meets UL 94V-0 flammability rating, and matte tin-plated leads comply with J-STD-002 for solderability - supporting lead-free reflow processes and environmental compliance in global markets.
1.5SMC36C 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:
- -
- Bidirectional Channels:
- 1
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
1.5SMC36C FAQ
1.How can I place an order for 1.5SMC36C through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC36C 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 1.5SMC36C reliable?
The price and inventory of 1.5SMC36C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC36C is usually 5 days.
3.What payment methods are accepted for 1.5SMC36C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC36C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC36C?
1.5SMC36C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC36C 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 1.5SMC36C?
For technical support, including 1.5SMC36C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC36C requirements.
6.How does Aetrix verify that 1.5SMC36C is sourced from the original manufacturer or authorized distributors?
All 1.5SMC36C 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 1.5SMC36C meets industry standards.
7.What is the process for return or replacement of 1.5SMC36C?
All 1.5SMC36C units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC36C, 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 1.5SMC36C part is unused and in its original packaging.
Return procedure for 1.5SMC36C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC36C Tags
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