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Taiwan Semiconductor Corporation 1.5SMC100
- Part No.:
- 1.5SMC100
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC100.pdf
- Description:
- 1500W, 100V, 10%, UNIDIRECTIONAL
- Quantity:
- Payment:
- Shipping:
Inventory:6,833
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Product details
Overview
1.5SMC100 from Taiwan Semiconductor is a unidirectional 1500W surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, with 90–110 V breakdown voltage (VBR), 81.0 V working stand-off voltage (VWM), and 144 V maximum clamping voltage (VC) at 10.9 A peak impulse current. It delivers fast <1.0 ps response for ESD and lightning surge protection in DC power rails.
For engineers reviewing the 1.5SMC100 datasheet, 1.5SMC100 pinout, 1.5SMC100 application, or 1.5SMC100 equivalent, this device is selected for high-energy transient suppression where precise VWM/VBR margin, low leakage (<1 µA @ 81 V), and ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance are required.
Technical Context
This unidirectional TVS operates as a voltage-clamped shunt protector: when transient voltage exceeds VBR (90–110 V), it avalanches into low-impedance conduction, limiting downstream voltage to ≤144 V at 10.9 A. Its glass-passivated junction ensures stable breakdown and low leakage.
Thermal design relies on RθJC = 15 °C/W and RθJA = 50 °C/W; steady-state power dissipation is 6.5 W at 25 °C ambient, derated linearly above that temperature per Fig.2. Forward voltage is specified at 5.0 V @ 50 A - distinct from lower-voltage variants (VF = 3.5 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 90 V / 110 V - defines minimum and maximum voltage at which avalanche conduction begins under 1 mA test current; sets clamping threshold range |
| VWM | 81.0 V - maximum continuous reverse operating voltage; system must stay below this to avoid leakage-induced power loss or thermal stress |
| VC @ IPPM | 144 V @ 10.9 A - peak clamped voltage during 10/1000 µs surge; determines worst-case overvoltage seen by protected ICs |
| PPK | 1500 W - peak pulse power handling per single 1 ms transient; validates suitability for automotive load-dump and lightning surges |
| IR @ VWM | <1 µA - ultra-low reverse leakage ensures minimal standby current draw and no measurable power loss in always-on circuits |
| TJ max | +150 °C - maximum junction temperature rating enables operation in under-hood or industrial enclosures without forced cooling |
| Response time | <1.0 ps - sub-nanosecond switching enables effective suppression of ESD events (IEC 61000-4-2) before sensitive circuitry is damaged |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, single-diode unidirectional configuration. Cathode indicated by molded band; polarity critical for correct placement in series with protected line.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input side of protected line (e.g., +12 V rail) | Connected to source of transient energy; must be routed with low-inductance trace to minimize overshoot during clamping |
| Cathode | Ground reference / return path | Must connect directly to low-impedance ground plane; shared ground with protected IC improves clamping effectiveness |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under repeated surge stress without parameter drift |
| ISO 7637-2 compliance | Validated for automotive electrical transients including Pulse 1 (inductive load dump), Pulse 2a/2b (switching spikes), and Pulse 3a/3b (capacitive coupling) |
| Moisture sensitivity level 1 | Zero bake requirement prior to reflow; compatible with standard SMT assembly processes without special handling |
| RoHS & halogen-free | Meets IEC 61249-2-21 and EU RoHS directives; suitable for consumer, industrial, and automotive supply chains requiring green compliance |
| Matte tin-plated leads | Guarantees solderability per J-STD-002; eliminates risk of poor wetting or voiding during automated reflow |
Applications
| Automotive Power Distribution | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting 24 V DC power inputs in body control modules against load-dump transients up to 120 V. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between input rail and chassis ground to clamp surges before they reach DC-DC converters and microcontrollers. Use Value: With VC = 144 V and PPK = 1500 W, 1.5SMC100 withstands ISO 7637-2 Pulse 5a (load dump) without degradation, preserving downstream component lifetime. |
Use Scenario: Safeguarding analog input channels (0–10 V, 4–20 mA) in programmable logic controllers exposed to field-wiring induced surges. IC Role / Device Role / Timing Role: Primary front-end transient suppressor on signal lines entering isolation amplifiers or ADC front-ends. Use Value: Sub-1 ps response and <1 µA leakage at 81 V ensure signal integrity is preserved during normal operation while enabling immediate clamping of EFT bursts (IEC 61000-4-4). |
| Telecom DC Power Feeds | Renewable Energy Inverter Control |
Use Scenario: Securing -48 V telecom rectifier outputs against lightning-induced common-mode surges on backplane distribution lines. IC Role / Device Role / Timing Role: Unidirectional TVS mounted at power entry point to divert surge current away from hot-swap controllers and PMBus supervisors. Use Value: 144 V clamping voltage provides ≥30 V margin above nominal -48 V rail, preventing false triggering while maintaining safe overvoltage limits for 60 V-rated silicon. |
Use Scenario: Protecting gate-drive power supplies in solar inverter half-bridges from switching noise and grid-side transients. IC Role / Device Role / Timing Role: Secondary-level TVS on isolated 15 V gate-driver rails to suppress coupled transients from high-dV/dt IGBT switching. Use Value: DO-214AB footprint allows compact placement near gate drivers; 1500 W rating handles repetitive 10/1000 µs surges typical in PV string monitoring circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100A (Bourns) | 600 W rating, SMB package (smaller footprint), bidirectional variant standard; VC = 162 V @ 6.2 A | Lower power handling suits lower-energy surges; SMB size may limit thermal mass in high-duty-cycle environments | Select when board space is constrained and peak surge energy is ≤600 W; verify layout supports lower thermal mass. |
| 1.5KE100A (ON Semiconductor) | Through-hole DO-201 package, same 1500 W rating, VC = 144 V @ 10.9 A, but slower response (~1 ns) and higher leakage (≤5 µA) | Requires wave soldering or hand assembly; not suitable for fully SMT production or high-frequency ESD events | Choose only for legacy through-hole designs or cost-sensitive non-automated builds where reflow compatibility is not required. |
Compared with SMBJ100A and 1.5KE100A, the 1.5SMC100 offers superior SMT manufacturability, lower leakage, and faster response-making it optimal for modern automotive and industrial PCBs requiring high-reliability, high-power transient suppression in compact layouts.
Availability
1.5SMC100 is available at Aetrix Electronics and suitable for automotive power distribution, industrial PLC I/O protection, telecom DC power feeds, and renewable energy inverter control requiring stable component supply and full ISO 7637-2 compliance.
Supply support for 1.5SMC100 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, rectifiers, and MOSFETs, with global distribution and AEC-Q200 qualified product lines.
The 1.5SMCxx series was designed specifically for high-energy transient suppression in automotive and industrial environments, emphasizing robustness, tight VBR tolerance, and full compliance with ISO 7637-2 and IEC 61000-4-x standards.
FAQ
What is the breakdown voltage range for the 1.5SMC100?
The 1.5SMC100 has a guaranteed breakdown voltage (VBR) range of 90 V to 110 V at 1.0 mA test current, measured per ANSI/IEEE C62.35. This range ensures consistent clamping behavior across production lots and supports reliable design margining against overvoltage events in 81 V nominal systems.
Is the 1.5SMC100 unidirectional or bidirectional?
The 1.5SMC100 is a unidirectional TVS diode, intended for DC line protection where polarity is fixed. Its cathode band marking indicates orientation; it conducts only during reverse overvoltage. For bidirectional AC or floating-line applications, the 1.5SMC100C variant must be used instead.
What is the forward voltage specification for the 1.5SMC100?
The 1.5SMC100 has a forward voltage (VF) of 5.0 V at 50 A, as confirmed in the Absolute Maximum Ratings table. This value applies only during forward conduction (e.g., during fault conditions involving reverse-polarity connection) and is distinct from the 3.5 V VF of lower-voltage 1.5SMC6.8–1.5SMC91 devices.
Does the 1.5SMC100 meet automotive transient immunity standards?
Yes, the 1.5SMC100 meets ISO 7637-2 requirements for Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling), verified per manufacturer test data. Its 1500 W peak power rating and 144 V clamping voltage make it suitable for 24 V and 48 V automotive subsystems.
What is the maximum clamping voltage of the 1.5SMC100 under surge conditions?
The 1.5SMC100 exhibits a maximum clamping voltage (VC) of 144 V at its rated peak impulse current of 10.9 A, tested with the standardized 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during worst-case transient events.
1.5SMC100 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):
- 81V
- Voltage - Breakdown (Min):
- 90V
- Voltage - Clamping (Max) @ Ipp:
- 144V
- Current - Peak Pulse (10/1000µs):
- 10.9A
- 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)
1.5SMC100 FAQ
1.How can I place an order for 1.5SMC100 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC100 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 1.5SMC100 reliable?
The price and inventory of 1.5SMC100 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC100 is usually 5 days.
3.What payment methods are accepted for 1.5SMC100?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC100 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC100?
1.5SMC100 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC100 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 1.5SMC100?
For technical support, including 1.5SMC100 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC100 requirements.
6.How does Aetrix verify that 1.5SMC100 is sourced from the original manufacturer or authorized distributors?
All 1.5SMC100 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 1.5SMC100 meets industry standards.
7.What is the process for return or replacement of 1.5SMC100?
All 1.5SMC100 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC100, 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 1.5SMC100 part is unused and in its original packaging.
Return procedure for 1.5SMC100:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC100 Tags
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