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Taiwan Semiconductor Corporation SMCJ110C
- Part No.:
- SMCJ110C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ110C.pdf
- Description:
- 1500W, 135.5V, 10%, BIDIRECTIONA
- Quantity:
- Payment:
- Shipping:
Inventory:7,086
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Product details
Overview
SMCJ110C from Taiwan Semiconductor is a bidirectional 1500W surface-mount transient voltage suppressor (TVS) in DO-214AB (SMC) package, with 110V working stand-off voltage (VWM), 122–149V breakdown voltage (VBR), and 196V maximum clamping voltage (VC) at 8A peak impulse current - designed for automotive load-dump and ISO 7637-2 Pulse 1/2a/2b/3a/3b protection in power supply rails.
For engineers reviewing the SMCJ110C datasheet, SMCJ110C pinout, SMCJ110C application, or SMCJ110C equivalent, this device delivers verified clamping performance under high-energy transients, supports automated placement, meets J-STD-020 Level 1 moisture sensitivity, and provides bidirectional ESD/transient immunity without polarity constraints.
Technical Context
The SMCJ110C uses a glass-passivated silicon junction to achieve sub-1.0ps response time from 0 V to VBR min, enabling effective suppression of fast-rising transients such as EFT and inductive switching spikes. Its bidirectional configuration ensures symmetrical clamping in both polarities, eliminating need for orientation during PCB assembly.
Thermal design is supported by RθJA = 55°C/W and RθJC = 10°C/W, allowing reliable operation up to TJ = +150°C. The device sustains 1500W peak pulse power (tp = 1 ms) while maintaining IR < 1 µA at VWM = 110V, ensuring minimal leakage in standby conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 110 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 122 V / 149 V @ IT = 1 mA - Confirmed breakdown threshold range for reliable turn-on margin |
| VC @ IPPM | 196 V @ 8 A - Clamped voltage during 10/1000 µs surge, limiting downstream IC stress |
| PPK | 1500 W - Peak pulse power handling per single 1 ms transient per Fig.5 waveform |
| IR @ VWM | < 1 µA - Negligible leakage current at rated stand-off, preserving system efficiency |
| Package | DO-214AB (SMC) - Surface-mount outline with 0.210 g mass and UL 94V-0 molding compound |
| Polarity | Bidirectional (C suffix) - Symmetric clamping behavior; no cathode marking required |
Pinout & Package
DO-214AB (SMC) package: molded plastic case with two coplanar terminals; matte tin-plated leads compliant with J-STD-002 solderability; polarity not applicable for bidirectional SMCJ110C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals function identically - bidirectional clamping enables flexible PCB routing without orientation dependency |
| Case | Non-electrical mechanical interface | UL 94V-0 rated thermoset body provides flame resistance and mechanical stability during reflow |
Key Features
| Feature | Design Value |
|---|---|
| ISO 7637-2 compliance | Validated for Pulse 1 (inductive load dump), Pulse 2a/2b (battery disconnect), and Pulse 3a/3b (switching transients) in automotive ECUs |
| Sub-1.0 ps response time | Ensures clamping activation before transient energy couples into sensitive analog/digital circuitry |
| J-STD-020 Level 1 moisture sensitivity | Enables standard SMT assembly without dry-pack or baking requirements |
| RoHS & halogen-free | Meets IEC 61249-2-21 and EU RoHS directives for environmentally constrained industrial and automotive programs |
| 1500W peak pulse rating | Supports robust protection against high-energy events like alternator load dump without derating at TA ≤ 25°C |
Applications
| Automotive Power Distribution | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed control modules from alternator load dump and jump-start surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main power rail upstream of DC-DC converters and microcontrollers. Use Value: Limits rail voltage to ≤196 V during 1500W transients, preventing latch-up or permanent damage to downstream ASICs and gate drivers. |
Use Scenario: Shielding digital input channels of programmable logic controllers from field-wiring induced transients. IC Role / Device Role / Timing Role: Bidirectional TVS placed across signal-to-ground or signal-to-VCC paths at connector entry points. Use Value: Absorbs >1 kV EFT bursts (IEC 61000-4-4) and inductive kickback without polarity concerns, preserving signal integrity. |
| LED Driver Power Stage | Telecom Power Interface |
Use Scenario: Safeguarding constant-current LED driver ICs and MOSFETs against inductive switching transients from long cable runs. IC Role / Device Role / Timing Role: Parallel-connected TVS across bulk capacitor input to clamp flyback energy from solenoid/relay coils. Use Value: Clamps 8 A surge within 196 V, preventing overvoltage failure of high-side switch FETs and current-sense amplifiers. |
Use Scenario: Front-end protection for PoE-powered equipment exposed to lightning-induced surges on Ethernet lines. IC Role / Device Role / Timing Role: Secondary-level TVS on DC input side after primary gas discharge tube (GDT) or MOV stage. Use Value: Provides precise low-clamping-voltage backup protection with <1 µA leakage, minimizing standby power loss in always-on telecom gear. |
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 (Bourns) | Same DO-214AA (SMB) package; 1500W rating; VC = 196 V @ 8 A; slightly higher RθJA (65°C/W) | Lower power density due to smaller SMB footprint; requires larger copper area for thermal management | Select when board space is constrained but thermal budget allows reduced heatsinking |
| 1.5KE110CA (ON Semiconductor) | Through-hole DO-15 package; same 110 V VWM and bidirectional function; VC = 196 V @ 7.7 A; lower surge repetition tolerance | Not suitable for automated SMT lines; limited to prototyping or legacy through-hole designs | Choose only for manual assembly or where existing DO-15 footprint must be retained |
Compared with SMBJ110CA and 1.5KE110CA, the SMCJ110C offers superior thermal performance (RθJC = 10°C/W), full SMT compatibility, and identical clamping behavior - making it optimal for high-volume automotive and industrial power rail protection where reliability and manufacturability are critical.
Availability
SMCJ110C is available at Aetrix Electronics and suitable for automotive ECU power rails, industrial PLC I/O modules, LED driver front-ends, and telecom DC input interfaces requiring stable component supply across production lifecycles.
Supply support for SMCJ110C 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 Taiwanese semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs for automotive, industrial, and consumer markets.
The SMCJ series was developed specifically for high-energy transient suppression in harsh environments - emphasizing ISO 7637-2 compliance, automated assembly readiness, and robust thermal performance in compact SMC packages.
FAQ
What is the clamping voltage of SMCJ110C under a standard 10/1000 µs surge?
The SMCJ110C exhibits a maximum clamping voltage (VC) of 196 V when subjected to an 8 A peak impulse current with a 10/1000 µs waveform. This value is measured per Fig.5 in the official datasheet and defines the upper voltage limit imposed on protected circuits during transient events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is SMCJ110C unidirectional or bidirectional, and how does that affect PCB layout?
SMCJ110C is a bidirectional TVS diode (denoted by the "C" suffix), meaning it clamps symmetrically in both polarities. Unlike unidirectional variants (e.g., SMCJ110A), it has no cathode band and requires no orientation during placement - simplifying SMT assembly and eliminating risk of reverse installation on PCBs.
Does SMCJ110C meet automotive transient immunity standards?
Yes, the SMCJ110C is explicitly rated to meet ISO 7637-2 for Pulses 1, 2a, 2b, 3a, and 3b - covering key automotive threats including load dump, battery disconnection, and inductive switching transients. This makes it suitable for engine control units, body control modules, and ADAS power supplies.
What is the maximum junction temperature and thermal resistance of SMCJ110C?
The SMCJ110C has a maximum junction temperature (TJ) of +150°C and thermal resistances of RθJA = 55°C/W and RθJC = 10°C/W. These values enable reliable operation in under-hood automotive environments and high-ambient industrial settings when mounted on adequate copper pour per the recommended pad layout.
How does SMCJ110C compare to SMCJ110A in terms of electrical performance?
The SMCJ110C (bidirectional) and SMCJ110A (unidirectional) share identical VWM (110 V), VBR (122–149 V), and VC (196 V @ 8 A), but differ in polarity behavior: SMCJ110A conducts only in reverse bias and requires correct cathode orientation, while SMCJ110C clamps equally in both directions - offering layout flexibility at no performance trade-off.
SMCJ110C 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:
- 196V
- Current - Peak Pulse (10/1000µs):
- 8A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SMCJ110C FAQ
1.How can I place an order for SMCJ110C through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ110C 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 SMCJ110C reliable?
The price and inventory of SMCJ110C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ110C is usually 5 days.
3.What payment methods are accepted for SMCJ110C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ110C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ110C?
SMCJ110C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ110C 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 SMCJ110C?
For technical support, including SMCJ110C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ110C requirements.
6.How does Aetrix verify that SMCJ110C is sourced from the original manufacturer or authorized distributors?
All SMCJ110C 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 SMCJ110C meets industry standards.
7.What is the process for return or replacement of SMCJ110C?
All SMCJ110C units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ110C, 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 SMCJ110C part is unused and in its original packaging.
Return procedure for SMCJ110C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ110C Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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