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Taiwan Semiconductor Corporation 1.5SMC110AH
- Part No.:
- 1.5SMC110AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC110AH.pdf
- Description:
- 1500W, 110V, 5%, UNIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:2,965
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Product details
Overview
1.5SMC110AH from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, rated for 1500W peak pulse power, 105–116V breakdown voltage (VBR), and 152V maximum clamping voltage (VC@IPPM). It protects automotive and industrial power rails against ESD, lightning-induced surges, and load-switch transients.
For engineers reviewing the 1.5SMC110AH datasheet, 1.5SMC110AH pinout, 1.5SMC110AH application, or 1.5SMC110AH equivalent, key selection criteria include clamping performance at 10.3A peak impulse current, 94.0V working stand-off voltage, AEC-Q101 qualification, ISO 7637-2 compliance, and unidirectional polarity marking.
Technical Context
This TVS diode uses a glass-passivated silicon junction optimized for fast response (<1.0 ps) and low leakage (<1 µA @ 94.0V). Its thermal design supports 150°C max junction temperature with RθJC = 15°C/W and RθJA = 50°C/W, enabling reliable operation in high-temperature automotive engine compartments.
The device meets ISO 7637-2 Pulse 1/2a/2b/3a/3b waveforms and is rated for 200A non-repetitive forward surge (IFSM) - critical for protecting 12V/24V vehicle electronics during battery disconnect events and alternator load dumps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR min/max | 105 V to 116 V - ensures reliable triggering above 94.0 V system operating voltage while avoiding false trips |
| VWM | 94.0 V - maximum continuous reverse standoff voltage compatible with 24V automotive systems |
| VC@IPPM | 152 V - clamping voltage limits downstream IC stress during 10.3 A 10/1000 µs surge |
| PPK | 1500 W - peak pulse power rating per 1 ms waveform, supporting IEC 61000-4-5 Level 4 immunity |
| IPPM | 10.3 A - peak impulse current capacity derived from 1500 W / 152 V, defining surge handling capability |
| TJ max | +150 °C - enables under-hood deployment without derating in ambient up to +125 °C |
| IR @ VWM | <1 µA - negligible standby leakage preserves battery life in always-on vehicle modules |
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 | Connected to protected line (e.g., 24V supply rail); conducts during reverse-biased surge |
| Cathode | Ground/Return side | Connected to system ground; defines polarity and clamping reference; marked by band |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD47 |
| ISO 7637-2 compliance | Withstands standardized automotive transients (Pulse 1/2a/2b/3a/3b) without degradation |
| Glass passivated junction | Enhances long-term stability and humidity resistance versus epoxy-passivated alternatives |
| Fast response time | <1.0 ps - clamps before sensitive downstream circuitry (e.g., CAN transceivers) experiences overvoltage |
| Low clamping ratio | VC/VBR ≈ 1.33 - tight voltage margin between trigger and clamp improves protection headroom |
Applications
| Automotive Power Rail Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting 24V battery-fed ECUs (e.g., body control modules) from load dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC input, clamping surges within 1.0 ps. Use Value: Limits voltage to ≤152 V during 10.3 A transients, preventing damage to 36V-rated input stages of buck converters. | Use Scenario: Safeguarding 24V digital input channels on programmable logic controllers exposed to field wiring noise. IC Role / Device Role / Timing Role: Front-end surge suppression on isolated inputs, absorbing ESD and inductive kickback from solenoid coils. Use Value: Withstands ≥1000 surges at 10.3 A (10/1000 µs) while maintaining <1 µA leakage at 94.0 V, ensuring signal integrity. |
| Telecom Power Interface | Motor Drive DC Bus Protection |
Use Scenario: Shielding PoE-powered equipment (e.g., IP cameras) from induced surges on 48V DC input lines. IC Role / Device Role / Timing Role: Primary overvoltage clamp on secondary-side DC bus, coordinated with upstream MOVs. Use Value: Clamps 1500 W surges at 152 V, reducing required PCB area vs. multi-stage solutions and meeting IEC 61000-4-5 Level 4. | Use Scenario: Protecting gate drivers and MCU power supplies in BLDC motor inverters subjected to regenerative braking spikes. IC Role / Device Role / Timing Role: Bidirectional-capable variant not used; this unidirectional part guards positive rail only, referenced to common ground. Use Value: Enables compact placement near power stage due to SMC footprint and 150°C TJ rating, surviving repeated 10.3 A pulses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110A | 600W rating, SMB package (smaller footprint), VC = 177 V @ 5.2 A | Limited to lower-energy surges; unsuitable for ISO 7637-2 Pulse 5a (load dump) | Select when space-constrained and surge energy ≤600W; verify clamping margin with downstream IC VDS(max). |
| 1.5KE110A | Through-hole DO-201 package, same 1500W rating, VC = 177 V @ 8.5 A | Not AEC-Q101 qualified; lacks ISO 7637-2 validation; higher VC reduces protection margin | Use only in non-automotive industrial designs where automated SMT assembly is not required. |
Compared with 1.5SMC110AH, SMBJ110A offers smaller size but sacrifices 50% peak power and fails ISO 7637-2 Pulse 5a compliance; 1.5KE110A matches power but lacks automotive qualification and has 16% higher clamping voltage, risking MOSFET gate oxide stress.
Availability
1.5SMC110AH is available at Aetrix Electronics and suitable for automotive ECU protection, industrial PLC input hardening, and telecom DC power interface surge suppression requiring stable component supply across production lifecycles.
Supply support for 1.5SMC110AH 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, serving automotive, industrial, and consumer markets since 1979.
The 1.5SMCxxAH series targets AEC-Q101-compliant transient protection for 12V/24V/48V automotive and industrial systems, emphasizing robust clamping, low leakage, and high-temperature reliability in surface-mount form.
FAQ
What is the polarity configuration of the 1.5SMC110AH?
The 1.5SMC110AH is a unidirectional TVS diode with cathode band marking indicating the cathode terminal. It conducts only during reverse-bias overvoltage events and blocks normal forward voltage - essential for protecting positive-rail systems like automotive 24V supplies. Its polarity must be observed during PCB layout to ensure correct clamping behavior.
Does the 1.5SMC110AH meet automotive qualification standards?
Yes, the 1.5SMC110AH is AEC-Q101 qualified and validated for automotive use, including temperature cycling, highly accelerated life testing (HALT), and ESD robustness. It also meets ISO 7637-2 Pulse 1/2a/2b/3a/3b requirements - confirming suitability for engine control units, body electronics, and infotainment systems.
What is the maximum clamping voltage of the 1.5SMC110AH under surge conditions?
The 1.5SMC110AH has a maximum clamping voltage (VC) of 152 V at 10.3 A peak impulse current (IPPM) with a 10/1000 µs waveform. This value is guaranteed across temperature and lifetime, providing a defined upper voltage limit during transients to protect downstream components such as DC-DC controllers and microcontrollers.
Can the 1.5SMC110AH be used in bidirectional applications?
No - the 1.5SMC110AH is unidirectional only. For bidirectional protection (e.g., data lines or AC-coupled rails), select the 1.5SMC110CAH variant, which features symmetrical breakdown in both directions and uses CH or CAH suffix per TSC's ordering convention.
What is the thermal resistance profile of the 1.5SMC110AH?
The 1.5SMC110AH has a junction-to-case thermal resistance (RθJC) of 15°C/W and junction-to-ambient resistance (RθJA) of 50°C/W under standard JEDEC test conditions. These values enable effective heat dissipation in high-power surge events and support operation up to +150°C junction temperature in properly designed PCB layouts with adequate copper pour.
1.5SMC110AH 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):
- 94V
- Voltage - Breakdown (Min):
- 105V
- Voltage - Clamping (Max) @ Ipp:
- 152V
- Current - Peak Pulse (10/1000µs):
- 10.3A
- 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)
1.5SMC110AH FAQ
1.How can I place an order for 1.5SMC110AH through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC110AH 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 1.5SMC110AH reliable?
The price and inventory of 1.5SMC110AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC110AH is usually 5 days.
3.What payment methods are accepted for 1.5SMC110AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC110AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC110AH?
1.5SMC110AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC110AH 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 1.5SMC110AH?
For technical support, including 1.5SMC110AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC110AH requirements.
6.How does Aetrix verify that 1.5SMC110AH is sourced from the original manufacturer or authorized distributors?
All 1.5SMC110AH 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 1.5SMC110AH meets industry standards.
7.What is the process for return or replacement of 1.5SMC110AH?
All 1.5SMC110AH units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC110AH, 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 1.5SMC110AH part is unused and in its original packaging.
Return procedure for 1.5SMC110AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC110AH Tags
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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