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Taiwan Semiconductor Corporation 1.5SMC110CAH
- Part No.:
- 1.5SMC110CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC110CAH.pdf
- Description:
- 1500W, 110V, 5%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:3,537
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Product details
Overview
1.5SMC110CAH from Taiwan Semiconductor is a bidirectional 1500W surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, with breakdown voltage 105–116 V, clamping voltage 152 V at 10.3 A, and working stand-off voltage 94.0 V. It provides ESD and surge protection for automotive power lines and industrial I/O interfaces.
For engineers reviewing the 1.5SMC110CAH datasheet, 1.5SMC110CAH pinout, 1.5SMC110CAH application, or 1.5SMC110CAH equivalent, this device is selected for high-energy transient immunity in ISO 7637-2-compliant 12 V/24 V systems where fast response (<1 ps), low leakage (<1 µA @ 94 V), and AEC-Q101 qualification are required.
Technical Context
The 1.5SMC110CAH is a bipolar TVS diode designed for symmetrical clamping in both directions, enabling robust protection of AC-coupled or floating signal/power rails without polarity sensitivity. Its glass-passivated junction ensures stable breakdown behavior and low leakage across temperature.
It meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b waveforms and supports peak impulse currents up to 10.3 A (10/1000 µs) while maintaining clamping below 152 V. Thermal resistance is 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) | 105 V / 116 V - Ensures reliable conduction onset above system nominal voltage (e.g., 94 V stand-off), minimizing false triggering during transients. |
| VWM | 94.0 V - Maximum continuous reverse voltage before significant leakage; compatible with 24 V automotive supply rails with margin. |
| VC @ IPPM | 152 V @ 10.3 A - Clamping voltage limits downstream component stress during ISO 7637-2 Pulse 5a surges. |
| PPK | 1500 W - Peak pulse power rating defines maximum transient energy absorption capability per single event. |
| IR @ VWM | <1 µA - Ultra-low leakage preserves signal integrity and battery life in always-on circuits. |
| TJ max | +150 °C - Enables use in under-hood automotive environments and high-temperature industrial enclosures. |
| Response time | <1.0 ps - Sub-picosecond switching ensures suppression before sensitive ICs experience overvoltage damage. |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, bidirectional configuration with cathode band omitted (symmetrical terminals). Matte tin-plated leads, RoHS and halogen-free compliant, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient current path | Both terminals function identically; no polarity marking required - simplifies PCB layout and eliminates orientation errors in automated assembly. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HAST, and mechanical shock - suitable for engine control, body electronics, and ADAS modules. |
| Glass passivated junction | Stable VBR tolerance and low IR drift over lifetime and temperature - critical for long-term surge immunity in unattended equipment. |
| ISO 7637-2 compliance | Tested against all five standard pulses (1, 2a, 2b, 3a, 3b) - enables single-device protection for 12 V/24 V vehicle networks without external filtering. |
| DO-214AB (SMC) package | Industry-standard footprint with 50 °C/W junction-to-ambient thermal resistance - supports high-power dissipation on standard FR-4 PCBs without heatsinking. |
| Moisture sensitivity level 1 | No bake requirement prior to reflow - reduces manufacturing cost and avoids thermal stress on adjacent components during assembly. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting LIN/CAN node power inputs from load dump and alternator ripple in passenger vehicles and commercial trucks. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between VBAT and GND, absorbing >1500 W transient energy within nanoseconds. Use Value: Prevents latch-up or destruction of transceiver ICs during ISO 7637-2 Pulse 5a events up to 110 V, with no polarity dependency. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) in factory automation PLCs from ESD and inductive switching noise. IC Role / Device Role / Timing Role: Low-leakage (≤1 µA) standoff device placed across differential signal pairs or supply rails to limit common-mode transients. Use Value: Maintains signal fidelity below 94 V operating range while clamping spikes to ≤152 V - preserving ADC accuracy and reducing post-signal conditioning complexity. |
| Telecom DC Power Feeds | Renewable Energy Inverter Control |
Use Scenario: Safeguarding PoE-powered devices and remote radio units connected to 48 V DC distribution lines exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary surge arrestor at DC input stage, rated for 1500 W peak power and 10.3 A impulse current per 10/1000 µs waveform. Use Value: Meets IEC 61000-4-5 Level 4 requirements when used with appropriate series impedance, eliminating need for multi-stage protection. | Use Scenario: Protecting microcontroller GPIOs and gate drivers in solar inverter auxiliary power supplies subjected to grid-switching transients. IC Role / Device Role / Timing Role: Fast-response (sub-ps) clamp on 24 V control rail, coordinated with upstream MOVs to handle combined high-energy/low-energy threats. Use Value: Enables compact, single-component protection solution meeting UL 1741 SA and IEEE 1547-2018 surge immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110CA | 600 W peak power, SMB package (smaller footprint, higher RθJA = 75 °C/W), same VBR range (105–116 V). | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a in 24 V systems. | Select when board space is constrained and surge energy remains ≤600 W. |
| 1.5KE110CA | Through-hole DO-201 package, same 1500 W rating but slower response (>1 ps), higher leakage (≤5 µA @ 94 V). | Not AEC-Q101 qualified; requires manual or selective soldering; incompatible with high-speed automated SMT lines. | Select only for legacy through-hole designs or non-automotive applications where cost outweighs performance. |
Compared with SMBJ110CA and 1.5KE110CA, the 1.5SMC110CAH delivers superior surge handling in a surface-mount AEC-Q101-qualified package - making it the preferred choice for automotive and industrial SMT production requiring full ISO 7637-2 compliance and sub-ps response.
Availability
1.5SMC110CAH is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, telecom DC feeds, and renewable energy inverter control requiring stable component supply and long-term lifecycle support.
Supply support for 1.5SMC110CAH 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-Q101 validation capabilities.
The 1.5SMCxxCAH series is part of TSC's automotive-grade TVS portfolio, engineered specifically for high-reliability transient suppression in harsh environments - emphasizing fast response, low leakage, and robust packaging for SMT automotive and industrial applications.
FAQ
What does the "CAH" suffix indicate in 1.5SMC110CAH?
The "CAH" suffix denotes a bidirectional configuration (C), AEC-Q101 qualification (A), and DO-214AB (SMC) package (H). Unlike unidirectional variants (e.g., 1.5SMC110H), the 1.5SMC110CAH clamps symmetrically in both polarities - essential for protecting AC-coupled or floating nodes without polarity constraints. This makes the 1.5SMC110CAH ideal for balanced signal lines and dual-rail power domains.
How does 1.5SMC110CAH meet ISO 7637-2 requirements?
The 1.5SMC110CAH is explicitly tested and rated for all five ISO 7637-2 transient pulses (1, 2a, 2b, 3a, 3b) per manufacturer documentation. Its 1500 W peak power rating, 152 V clamping voltage at 10.3 A, and sub-picosecond response enable it to absorb standardized load-dump and switch-off surges in 12 V/24 V vehicle networks without additional circuitry - a key design advantage of the 1.5SMC110CAH in automotive applications.
What is the maximum steady-state power dissipation for 1.5SMC110CAH?
The 1.5SMC110CAH has a steady-state power dissipation (PD) of 6.5 W at TA = 25 °C, derating linearly above that ambient temperature per the published thermal curve. This value reflects continuous DC or low-frequency power handling - distinct from its 1500 W peak pulse rating. Designers must ensure board layout and copper area support adequate heat spreading to maintain TJ ≤ 150 °C, especially in enclosed industrial enclosures where the 1.5SMC110CAH operates near thermal limits.
Is 1.5SMC110CAH compatible with lead-free reflow processes?
Yes, the 1.5SMC110CAH uses matte tin-plated leads and complies with J-STD-002 for solderability. Its moisture sensitivity level is rated at MSL 1 - meaning it can be stored indefinitely at ≤30 °C/60% RH and placed directly into standard lead-free reflow profiles (e.g., JEDEC J-STD-020) without baking. This compatibility simplifies manufacturing and ensures robust joint formation in high-volume SMT lines using the 1.5SMC110CAH.
What is the typical junction capacitance of 1.5SMC110CAH at 0 V bias?
The datasheet does not specify junction capacitance for the 1.5SMC110CAH individually; however, the family exhibits typical CJ ≈ 100–200 pF at 0 V for VBR ≥ 100 V models (per Fig.3 curve). For high-speed data lines, this capacitance may affect signal integrity - so the 1.5SMC110CAH is best applied on power rails or low-bandwidth analog paths. For signal-line protection, lower-capacitance alternatives like SMAJ110CA (CJ ≈ 40 pF) should be evaluated instead of the 1.5SMC110CAH.
1.5SMC110CAH 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):
- 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)
1.5SMC110CAH FAQ
1.How can I place an order for 1.5SMC110CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC110CAH 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 1.5SMC110CAH reliable?
The price and inventory of 1.5SMC110CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC110CAH is usually 5 days.
3.What payment methods are accepted for 1.5SMC110CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC110CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC110CAH?
1.5SMC110CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC110CAH 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 1.5SMC110CAH?
For technical support, including 1.5SMC110CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC110CAH requirements.
6.How does Aetrix verify that 1.5SMC110CAH is sourced from the original manufacturer or authorized distributors?
All 1.5SMC110CAH 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 1.5SMC110CAH meets industry standards.
7.What is the process for return or replacement of 1.5SMC110CAH?
All 1.5SMC110CAH units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC110CAH, 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 1.5SMC110CAH part is unused and in its original packaging.
Return procedure for 1.5SMC110CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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