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Taiwan Semiconductor Corporation 1.5SMC100A
- Part No.:
- 1.5SMC100A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC100A.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,194
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Product details
Overview
1.5SMC100A from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for primary-level overvoltage protection in DC power rails and signal lines. It features a 95–105 V breakdown voltage (VBR), 85.5 V working stand-off voltage (VWM), 1500 W peak pulse power (PPK), and clamps transients to ≤137 V at 11.4 A peak impulse current - deployed in telecom front-ends, industrial I/O modules, and automotive body control units.
For engineers reviewing the 1.5SMC100A datasheet, 1.5SMC100A pinout, 1.5SMC100A application, or 1.5SMC100A equivalent, key selection criteria include clamping voltage margin vs. protected IC VCC, leakage current at operating voltage, thermal derating above 25°C, and compatibility with DO-214AB (SMC) footprint and reflow profiles.
Technical Context
The 1.5SMC100A operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its specified VBR range (95–105 V at 1 mA test current). Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1 µA at 85.5 V), critical for low-power standby circuits.
It conforms to ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive transient immunity and delivers sub-1 ps response time. Thermal performance is defined by RθJA = 50°C/W and RθJC = 15°C/W, supporting operation from –55°C to +150°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 95 V / 105 V at 1 mA - defines reliable conduction onset under surge conditions without premature triggering |
| VWM | 85.5 V - maximum continuous reverse voltage before significant leakage; sets safe operating margin below system rail |
| VC @ IPPM | ≤137 V at 11.4 A - clamping voltage during 10/1000 µs surge; determines maximum stress on downstream components |
| PPK | 1500 W - peak pulse power handling per single 10/1000 µs waveform; enables robust lightning/ESD protection |
| IR @ VWM | <1 µA - ultra-low blocking leakage preserves battery life and signal integrity in high-impedance nodes |
| Junction Temp (TJ) | –55°C to +150°C - supports deployment in under-hood automotive and industrial environments |
| 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 J-STD-020 moisture sensitivity level 1 and JESD 201 class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current path / low-side reference | Connected to ground or lower-potential node; carries surge current during clamping |
| Cathode | Protected line input / high-side connection | Connected to the line being protected (e.g., 24 V supply rail); marked with band |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under repeated surge stress |
| Clamping voltage ≤137 V | Provides ≥13% margin below typical 150 V industrial rail limits, reducing risk of secondary failure |
| Response time <1 ps | Engages before ESD or fast transients propagate into sensitive analog or digital circuitry |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU directives for environmentally constrained applications |
| ISO 7637-2 compliance | Validated for automotive load-dump and switching transient immunity (Pulse 1/2a/2b/3a/3b) |
Applications
| Industrial PLC I/O Protection | Automotive Body Control Module |
|---|---|
Use Scenario: 24 V DC input channels on programmable logic controller (PLC) modules exposed to inductive kickback and field wiring faults. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed directly at connector entry point, upstream of TVS arrays and signal conditioners. Use Value: Limits transient excursions to ≤137 V, protecting 3.3 V/5 V interface ICs and microcontrollers rated for ≤150 V absolute max. |
Use Scenario: Power supply input to BCM microcontroller and CAN transceiver, subject to ISO 7637-2 Pulse 2b (load dump) and Pulse 5a (alternator surge). IC Role / Device Role / Timing Role: Unidirectional TVS diode shunting surges to chassis ground, coordinated with upstream fuses and LC filters. Use Value: Withstands 1500 W peak pulses while maintaining <1 µA leakage at nominal 12 V/24 V rails, minimizing quiescent current drain. |
| Telecom Line Interface | Medical Equipment Power Input |
Use Scenario: -48 V DC power feed to VoIP gateway or base station RF module, vulnerable to lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: First-stage protector on main power rail, followed by secondary filtering and local regulation. Use Value: Clamps 10/1000 µs surges to ≤137 V, compatible with -48 V systems using 150 V-rated MOSFETs and DC-DC controllers. |
Use Scenario: Mains-derived 24 V DC input to diagnostic imaging subsystem, requiring low-leakage, high-reliability surge suppression. IC Role / Device Role / Timing Role: Standoff-rated TVS on isolated secondary side, guarding against internal switching transients and ESD coupling. Use Value: Sub-1 µA leakage at 24 V ensures no impact on precision bias networks or low-noise analog front-ends. |
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) | Same DO-214AA package; 100 V VBR min/max = 95–105 V; identical PPK = 600 W (not 1500 W) | Lower peak power rating limits use to lighter-duty surges; not suitable for ISO 7637-2 Pulse 5a | Select only where 600 W surge capacity suffices and board space requires smaller SMB footprint |
| 1.5KE100A (ON Semiconductor) | Through-hole DO-15 package; same VBR/VWM/VC specs; PPK = 1500 W; higher RθJA ≈ 60°C/W | Requires through-hole assembly; less suitable for automated SMT lines and high-density layouts | Choose only if legacy through-hole design mandates DO-15 or thermal constraints allow higher junction rise |
Compared with SMBJ100A and 1.5KE100A, the 1.5SMC100A uniquely combines 1500 W SMT capability in DO-214AB, sub-1 µA leakage at 85.5 V, and full ISO 7637-2 compliance - making it optimal for high-reliability, high-volume automated production of industrial and automotive electronics.
Availability
1.5SMC100A is available at Aetrix Electronics and suitable for industrial PLCs, automotive body control modules, telecom line interfaces, and medical equipment power inputs requiring stable component supply across extended production lifecycles.
Supply support for 1.5SMC100A 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 for industrial, automotive, and consumer markets.
The 1.5SMC series was engineered for high-energy, surface-mount transient suppression in harsh environments - emphasizing low leakage, tight VBR tolerance, and automotive-grade reliability in compact DO-214AB packaging.
FAQ
What is the breakdown voltage range for the 1.5SMC100A?
The 1.5SMC100A has a guaranteed breakdown voltage (VBR) range of 95 V to 105 V at 1 mA test current, measured per ANSI/IEEE C62.35. This tight 10 V window ensures predictable turn-on behavior across temperature and production lots, critical for consistent protection in 24 V and 48 V systems where overvoltage margins are constrained.
Is the 1.5SMC100A unidirectional or bidirectional?
1.5SMC100A is a unidirectional TVS diode, intended for DC line protection with polarity-sensitive placement (cathode toward the protected line). Its datasheet specifies forward voltage (VF = 5.0 V at 50 A) and explicitly excludes bidirectional operation - unlike CA-suffixed variants such as 1.5SMC100CA, which support AC or dual-rail applications.
What is the maximum clamping voltage of the 1.5SMC100A during a surge event?
The 1.5SMC100A clamps to a maximum of 137 V when subjected to its rated 11.4 A peak impulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured at TA = 25°C and forms the basis for determining safe voltage margins for downstream ICs - for example, ensuring headroom below the 150 V absolute maximum rating of many industrial-grade regulators.
Does the 1.5SMC100A meet automotive transient standards?
Yes, the 1.5SMC100A meets ISO 7637-2 requirements for Pulses 1, 2a, 2b, 3a, and 3b - covering common automotive transients including load dump, alternator ripple, and inductive switching noise. Its 1500 W peak power rating and 137 V clamping voltage make it suitable for protecting ECUs and BCMs in 12 V and 24 V vehicle architectures.
What is the thermal resistance of the 1.5SMC100A, and how does it affect layout?
The 1.5SMC100A has a junction-to-ambient thermal resistance (RθJA) of 50°C/W and junction-to-case (RθJC) of 15°C/W. To maintain TJ ≤150°C under sustained 1500 W pulses, PCB copper area must be optimized - typically ≥100 mm² of 2 oz copper per pad with thermal vias to inner layers. Layouts ignoring this may suffer premature thermal runaway during repetitive surges.
1.5SMC100A 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):
- 85.5V
- Voltage - Breakdown (Min):
- 95V
- Voltage - Clamping (Max) @ Ipp:
- 137V
- Current - Peak Pulse (10/1000µs):
- 11.4A
- 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)
1.5SMC100A FAQ
1.How can I place an order for 1.5SMC100A through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC100A 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 1.5SMC100A reliable?
The price and inventory of 1.5SMC100A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC100A is usually 5 days.
3.What payment methods are accepted for 1.5SMC100A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC100A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC100A?
1.5SMC100A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC100A 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 1.5SMC100A?
For technical support, including 1.5SMC100A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC100A requirements.
6.How does Aetrix verify that 1.5SMC100A is sourced from the original manufacturer or authorized distributors?
All 1.5SMC100A 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 1.5SMC100A meets industry standards.
7.What is the process for return or replacement of 1.5SMC100A?
All 1.5SMC100A units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC100A, 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 1.5SMC100A part is unused and in its original packaging.
Return procedure for 1.5SMC100A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC100A Tags
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