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Taiwan Semiconductor Corporation SMCJ110CAH
- Part No.:
- SMCJ110CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ110CAH.pdf
- Description:
- TVS DIODE 110VWM 177VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,748
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Product details
Overview
SMCJ110CAH from Taiwan Semiconductor is a bidirectional 1500W surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, with 110V working stand-off voltage (VWM), 122–135V breakdown voltage (VBR), and 177V maximum clamping voltage (VC) at 8.9A peak impulse current. It protects automotive and industrial power rails against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients and ESD.
For engineers reviewing the SMCJ110CAH datasheet, SMCJ110CAH pinout, SMCJ110CAH application, or SMCJ110CAH equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance values, moisture sensitivity level (MSL 1), and bidirectional clamping behavior critical for robust overvoltage protection design in 12V/24V/48V systems.
Technical Context
The SMCJ110CAH uses a glass-passivated junction to achieve fast response (<1.0 ps from 0 V to VBR min) and low leakage (<1 µA at 110 V). Its bidirectional configuration enables symmetrical clamping in AC-coupled or floating signal lines without polarity constraints.
Rated for 150°C junction temperature and compliant with JESD201 Class 2 whisker resistance, it supports automated placement and meets UL 94V-0 flammability requirements. Thermal performance includes RθJA = 55°C/W and RθJC = 10°C/W, enabling reliable operation under sustained surge conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 110 V - Maximum continuous reverse operating voltage before clamping initiates; defines safe standoff for 12V/24V/48V bus monitoring. |
| VBR min/max | 122 V / 135 V @ 1 mA - Confirmed breakdown threshold range ensures predictable turn-on during transients. |
| VC @ IPPM | 177 V @ 8.9 A - Clamping voltage under 10/1000 µs surge; limits downstream voltage stress to ≤177 V. |
| PPK | 1500 W - Peak pulse power rating per 1 ms waveform; supports high-energy load-dump and lightning-induced surges. |
| IR @ VWM | <1 µA - Ultra-low reverse leakage preserves signal integrity and minimizes standby power loss. |
| TJ max | +150 °C - Enables deployment in under-hood automotive environments and industrial enclosures without derating. |
| Package | DO-214AB (SMC) - Standardized surface-mount outline with 7.11 mm x 6.22 mm footprint and 2.3 mm height for high-power density PCB layout. |
Pinout & Package
DO-214AB (SMC) package: molded plastic case with matte tin-plated leads, polarity indicated by cathode band (not applicable for bidirectional SMCJ110CAH); weight ≈ 0.210 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Transient current entry point (negative half-cycle) | Conducts surge current during negative voltage excursions; symmetrically identical to Cathode in bidirectional operation. |
| Cathode (Lead 2) | Transient current entry point (positive half-cycle) | Conducts surge current during positive voltage excursions; electrically interchangeable with Anode due to CAH symmetry. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JEDEC standards. |
| ISO 7637-2 compliance | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line impedance coupling) waveforms. |
| Glass-passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift in harsh environments. |
| MSL Level 1 | Unlimited floor life at ≤30°C/60% RH; no bake requirement prior to reflow soldering. |
| Halogen-free & RoHS | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally constrained applications. |
Applications
| Automotive Power Distribution | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting 24V CAN bus power lines and sensor supply rails against load dump and jump-start transients. IC Role / Device Role / Timing Role: Bidirectional TVS diode providing primary overvoltage clamping at board-level input stage. Use Value: Limits transient voltage to ≤177 V during 12V/24V system load dump events, preserving downstream DC-DC converters and microcontrollers. |
Use Scenario: Shielding analog input channels and digital outputs of programmable logic controllers from field-wiring induced surges. IC Role / Device Role / Timing Role: Standoff protector placed across terminal blocks to absorb energy from inductive switching and lightning coupling. Use Value: Withstands ≥8.9 A peak impulse current per IEC 61000-4-5, preventing latch-up or damage to isolated ADCs and optocouplers. |
| Telecom DC Power Feeds | Renewable Energy Inverter Control |
Use Scenario: Safeguarding -48V telecom rectifier outputs and battery backup interfaces from grid-switching transients. IC Role / Device Role / Timing Role: Bidirectional clamping device mounted directly at power entry connector. Use Value: Maintains <1 µA leakage at -48V nominal, minimizing standby drain while clamping to 177 V during 10/1000 µs surges. |
Use Scenario: Protecting gate-drive circuitry and MCU supply rails in solar inverter control boards exposed to PV array surge coupling. IC Role / Device Role / Timing Role: Secondary-level TVS on auxiliary 12V/15V bias rails feeding isolated gate drivers. Use Value: Delivers 1500 W peak power handling with 55°C/W junction-to-ambient thermal resistance for sustained thermal stability. |
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 | Lower PPK (600 W), same VWM/VBR/VC, SMB package (smaller footprint, higher RθJA = 85°C/W) | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 1 or high-current load dump. | Select SMBJ110CA only when space-constrained layouts and reduced surge severity allow lower power rating. |
| 1.5KE110CA | Through-hole TO-218 package, same 1500 W rating but slower response (>1 ns), higher IR (5 µA @ 110 V) | Not AEC-Q101 qualified; incompatible with automated SMT assembly; less suitable for automotive production. | Choose 1.5KE110CA only for legacy through-hole designs where rework tolerance and manual assembly are acceptable. |
Compared with SMBJ110CA and 1.5KE110CA, the SMCJ110CAH provides optimal balance of high surge capability (1500 W), AEC-Q101 qualification, SMT compatibility, and ultra-low leakage-making it the preferred choice for new automotive and industrial designs requiring DO-214AB packaging.
Availability
SMCJ110CAH 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 across extended temperature ranges and high-reliability manufacturing.
Supply support for SMCJ110CAH 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, and rectifiers with global AEC-Q101 and industrial qualification capabilities.
The SMCJ series was designed specifically for high-energy transient suppression in automotive and industrial environments, emphasizing AEC-Q101 reliability, ISO 7637-2 compliance, and robust thermal performance in surface-mount packages.
FAQ
What does the 'CAH' suffix indicate in SMCJ110CAH?
The 'CAH' suffix denotes a bidirectional configuration with AEC-Q101 qualification and halogen-free construction. Unlike unidirectional 'H' variants, SMCJ110CAH provides symmetrical clamping for both polarities-critical for protecting AC-coupled signals or floating grounds. This distinguishes it from SMCJ110H (unidirectional) and confirms its suitability for automotive and industrial applications demanding full-spectrum transient immunity.
Is SMCJ110CAH compatible with lead-free reflow soldering processes?
Yes, SMCJ110CAH supports standard lead-free reflow profiles per J-STD-020. Its DO-214AB package has a moisture sensitivity level (MSL) of 1, meaning unlimited floor life at ≤30°C/60% RH and no pre-bake required. The matte tin-plated leads meet J-STD-002 solderability requirements, ensuring reliable wetting and joint formation during peak temperatures up to 260°C.
How does SMCJ110CAH perform under repeated surge stress?
SMCJ110CAH is rated for non-repetitive 1 ms pulses per Fig.5 in the datasheet. While not specified for repetitive surges, its 150°C maximum junction temperature and 10°C/W junction-to-case thermal resistance enable limited repetition if adequate PCB copper area and airflow mitigate cumulative heating. For repetitive threat models, derating per Fig.2 is mandatory-and system-level testing is recommended to validate endurance.
Does SMCJ110CAH meet ISO 7637-2 Pulse 1 requirements?
Yes, SMCJ110CAH is explicitly validated to meet ISO 7637-2 Pulse 1 (inductive load dump) requirements. With a 177 V clamping voltage at 8.9 A and 1500 W peak power rating, it limits voltage overshoot below the 180 V threshold defined for 24V automotive systems-ensuring protection of downstream components such as CAN transceivers and power management ICs during alternator disconnection events.
What is the significance of the 1 µA maximum reverse leakage at 110 V for SMCJ110CAH?
The ≤1 µA reverse leakage at VWM = 110 V ensures minimal parasitic loading on protected circuits-especially critical in high-impedance sensor interfaces and battery-backed systems. This low leakage preserves signal fidelity in analog front-ends and avoids unnecessary power drain in always-on automotive modules, directly supporting design goals for low-quiescent-current and precision measurement applications using SMCJ110CAH.
SMCJ110CAH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AB, SMC
- Series:
- SMCJ
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 110V
- Voltage - Breakdown (Min):
- 122V
- Voltage - Clamping (Max) @ Ipp:
- 177V
- Current - Peak Pulse (10/1000µs):
- 8.9A
- 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)
SMCJ110CAH FAQ
1.How can I place an order for SMCJ110CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ110CAH 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 SMCJ110CAH reliable?
The price and inventory of SMCJ110CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ110CAH is usually 5 days.
3.What payment methods are accepted for SMCJ110CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ110CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ110CAH?
SMCJ110CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ110CAH 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 SMCJ110CAH?
For technical support, including SMCJ110CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ110CAH requirements.
6.How does Aetrix verify that SMCJ110CAH is sourced from the original manufacturer or authorized distributors?
All SMCJ110CAH 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 SMCJ110CAH meets industry standards.
7.What is the process for return or replacement of SMCJ110CAH?
All SMCJ110CAH units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ110CAH, 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 SMCJ110CAH part is unused and in its original packaging.
Return procedure for SMCJ110CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ110CAH Tags
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