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Taiwan Semiconductor Corporation 1.5SMC100AH
- Part No.:
- 1.5SMC100AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC100AH.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,520
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Product details
Overview
1.5SMC100AH from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for high-energy surge protection in DC power rails and signal lines. It features a 100V breakdown voltage (95–105V), 1500W peak pulse power rating, 137V maximum clamping voltage at 11.4A, AEC-Q101 qualification, and DO-214AB (SMC) package - deployed in automotive infotainment power inputs to suppress ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the 1.5SMC100AH datasheet, 1.5SMC100AH pinout, 1.5SMC100AH application, or 1.5SMC100AH equivalent, key selection criteria include clamping voltage margin vs. protected IC VMAX, leakage current at operating voltage, thermal resistance (RθJA = 50°C/W), unidirectional polarity marking, and compliance with automotive ESD/EMI immunity standards.
Technical Context
This TVS operates as a voltage-clamped shunt protector: under normal bias (≤85.5V), it exhibits <1µA leakage; during transient events exceeding 95V, the junction avalanches to clamp voltage ≤137V within <1ps. Its glass-passivated chip junction ensures stable VBR tolerance (±5%) and low temperature coefficient (0.106%/°C).
The device is rated for 1500W peak pulse power (10/1000µs waveform), supports 200A non-repetitive forward surge (8.3ms half-sine), and maintains operation across -55°C to +150°C junction temperature - enabled by DO-214AB's low RθJC (15°C/W) and UL 94V-0 molding compound.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR Min/Max | 95V / 105V - defines precise avalanche initiation window; ±5% tolerance enables accurate overvoltage threshold setting |
| VWM | 85.5V - maximum continuous reverse working voltage; must exceed system nominal DC rail (e.g., 12V/24V/48V bus) |
| VC@IPPM | 137V at 11.4A - clamping voltage during 10/1000µs surge; determines protected IC's voltage stress margin |
| PPK | 1500W - peak pulse power handling per IEC 61000-4-5; validates robustness against lightning-induced surges |
| IR@VWM | <1µA - ultra-low leakage ensures minimal standby power loss in battery-backed systems |
| TJ Max | +150°C - enables placement near heat-generating components (e.g., DC-DC converters) without derating |
| RθJA | 50°C/W - quantifies thermal performance on standard FR-4 PCB; guides copper pour design for thermal management |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, unidirectional configuration with cathode band marking. Case meets UL 94V-0 flammability rating; matte tin-plated leads comply with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input side of protected line (e.g., +12V rail) | Connected to source of transient energy; referenced to system ground via cathode |
| Cathode | Ground reference terminal | Marked by band; ties to chassis/system ground to complete clamping path during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive under-hood and infotainment applications per stress test requirements (HTOL, TC, UHAST) |
| Clamping response time <1ps | Enables protection of high-speed interfaces (e.g., CAN FD, LIN) before transient propagates into IC pins |
| Meets ISO 7637-2 Pulse 1/2a/2b/3a/3b | Guarantees immunity to load-dump, alternator ripple, and inductive switching transients in 12V/24V vehicle networks |
| Moisture sensitivity level 1 | Allows unlimited floor life before reflow; eliminates baking requirement and simplifies SMT manufacturing |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally constrained designs |
Applications
| Automotive Power Input Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: 12V/24V power input to head unit or ADAS camera module exposed to alternator load dump and jump-start surges. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between power rail and chassis ground to clamp transients before they reach PMIC or microcontroller. Use Value: 137V clamping voltage provides >20V margin below typical 150V automotive IC absolute maximum ratings, preventing latch-up or oxide damage. |
Use Scenario: Digital input channel of programmable logic controller subjected to field-wiring ESD and inductive kickback from solenoid valves. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to divert fast transients (<1ns rise) away from optocoupler or digital isolator inputs. Use Value: Sub-1µA leakage at 24V nominal ensures no false triggering of 24V logic thresholds; 1500W rating handles repetitive 100A surge events. |
| Telecom DC Power Feeds | Consumer USB-C Power Delivery |
Use Scenario: -48V DC feed to telecom base station card experiencing lightning-induced longitudinal surges on copper pairs. IC Role / Device Role / Timing Role: Bidirectional variant (1.5SMC100AH used with external series resistor) protects PHY interface and DC-DC front-end. Use Value: 100V VBR aligns with -48V system's ±10% tolerance and 1500W rating exceeds ITU-T K.21 heavy-duty surge requirements. |
Use Scenario: VBUS line in USB-C receptacle exposed to hot-plug ESD and cable discharge events up to ±15kV contact. IC Role / Device Role / Timing Role: Primary shunt protector downstream of EMI filter, clamping fast ESD pulses before reaching USB PD controller. Use Value: 137V clamping ensures VBUS stays below 20V-rated USB-C switch ICs; 0.21g weight supports ultra-thin portable device form factors. |
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 | Same DO-214AA package; lower PPK = 600W; VC = 165V @ 3.6A | Limited to lower-energy transients (IEC 61000-4-2 only); not ISO 7637-2 compliant | Select when cost-sensitive consumer designs require basic ESD protection without automotive-grade surge capability |
| 1.5KE100A | Through-hole DO-15; identical VBR/VC specs but higher RθJA (75°C/W); no AEC-Q101 | Requires PCB real estate for axial leads; unsuitable for automated SMT lines or space-constrained modules | Choose for legacy through-hole production or prototyping where thermal mass compensates for poorer dissipation |
Compared with SMBJ100A and 1.5KE100A, the 1.5SMC100AH delivers superior surge robustness (1500W vs. 600W/1500W), automotive qualification, and SMT manufacturability - making it optimal for next-gen automotive and industrial edge devices requiring zero-layout compromise.
Availability
1.5SMC100AH is available at Aetrix Electronics and suitable for automotive infotainment, industrial PLC I/O, telecom DC feeds, and USB-C power delivery systems requiring stable component supply, AEC-Q101 validation, and high-reliability surge immunity.
Supply support for 1.5SMC100AH 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, MOSFETs, and power management ICs since 1979.
The 1.5SMC series was engineered specifically for high-power, surface-mount transient suppression in automotive and industrial environments - prioritizing low clamping ratio, AEC-Q101 reliability, and compatibility with high-speed automated assembly.
FAQ
What is the clamping voltage of the 1.5SMC100AH under a 10/1000µs surge?
The 1.5SMC100AH has a maximum clamping voltage (VC) of 137V when subjected to its rated peak pulse current (IPPM) of 11.4A using the standardized 10/1000µs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees predictable voltage limiting during surge events - critical for ensuring protected ICs remain within their absolute maximum voltage ratings. The 1.5SMC100AH achieves this with a clamping ratio (VC/VBR) of ~1.37, indicating efficient avalanche conduction.
Is the 1.5SMC100AH suitable for bidirectional transient protection?
No - the 1.5SMC100AH is a unidirectional TVS diode, intended for DC power line protection where polarity is fixed. For bidirectional AC or data-line applications, Taiwan Semiconductor specifies variants with "CH" or "CAH" suffixes (e.g., 1.5SMC100ACH). Using the 1.5SMC100AH in reverse-biased configurations risks premature failure due to lack of symmetric breakdown characteristics. Always verify polarity alignment: cathode must connect to system ground in standard unidirectional deployment.
Does the 1.5SMC100AH meet automotive qualification standards?
Yes - the 1.5SMC100AH is explicitly AEC-Q101 qualified, having passed stress tests including high-temperature operating life (HTOL), temperature cycling (TC), and unbiased highly accelerated stress test (UHAST). It also meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b for automotive electrical disturbances. These certifications confirm suitability for under-hood and cabin electronics where reliability under thermal, mechanical, and electrical stress is mandatory - a key differentiator versus generic industrial TVS diodes.
What is the thermal resistance of the 1.5SMC100AH, and how does it affect PCB layout?
The 1.5SMC100AH has a junction-to-ambient thermal resistance (RθJA) of 50°C/W on standard FR-4 with minimum pad layout, and a lower junction-to-case value (RθJC) of 15°C/W. This means that for a 1500W transient, even brief power dissipation raises junction temperature significantly - so PCB layout must maximize copper area on both anode and cathode pads, use multiple thermal vias to inner ground planes, and avoid isolation slots near the device. The 1.5SMC100AH's RθJA directly informs thermal derating curves in Figure 2 of its datasheet.
How does the leakage current of the 1.5SMC100AH impact low-power battery-operated designs?
The 1.5SMC100AH exhibits a maximum blocking leakage current (IR) of less than 1µA at its working stand-off voltage (VWM = 85.5V), measured at 25°C. In battery-powered systems - such as automotive telematics or IoT sensors - this ultra-low leakage prevents measurable drain on primary cells or supercapacitors during long sleep cycles. Unlike higher-leakage alternatives (e.g., >5µA), the 1.5SMC100AH preserves battery service life without requiring additional series switches or complex biasing schemes.
1.5SMC100AH 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
1.5SMC100AH FAQ
1.How can I place an order for 1.5SMC100AH through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC100AH 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 1.5SMC100AH reliable?
The price and inventory of 1.5SMC100AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC100AH is usually 5 days.
3.What payment methods are accepted for 1.5SMC100AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC100AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC100AH?
1.5SMC100AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC100AH 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 1.5SMC100AH?
For technical support, including 1.5SMC100AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC100AH requirements.
6.How does Aetrix verify that 1.5SMC100AH is sourced from the original manufacturer or authorized distributors?
All 1.5SMC100AH 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 1.5SMC100AH meets industry standards.
7.What is the process for return or replacement of 1.5SMC100AH?
All 1.5SMC100AH units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC100AH, 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 1.5SMC100AH part is unused and in its original packaging.
Return procedure for 1.5SMC100AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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