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Taiwan Semiconductor Corporation SMCJ10CAH
- Part No.:
- SMCJ10CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ10CAH.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,989
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Product details
Overview
SMCJ10CAH from Taiwan Semiconductor is a bidirectional 1500W transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, with 11.1V minimum breakdown voltage (VBR), 10V working stand-off voltage (VWM), and 17.0V maximum clamping voltage (VC) at 92A peak pulse current - designed to protect automotive power lines and industrial I/O interfaces against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the SMCJ10CAH datasheet, SMCJ10CAH pinout, SMCJ10CAH application, or SMCJ10CAH equivalent, this device is evaluated for ESD immunity, load-dump robustness, and fast-response (<1.0 ps) surge suppression in AEC-Q101-compliant automotive modules, telecom front-ends, and industrial PLC inputs.
Technical Context
The SMCJ10CAH is a glass-passivated, bipolar junction TVS diode optimized for bidirectional transient suppression - its symmetrical VBR (11.1–12.3 V) and low leakage (<1 µA @ 10 V) enable stable clamping in both polarities without polarity-sensitive layout. It meets ISO 7637-2 test pulses across all defined waveforms (Pulse 1, 2a, 2b, 3a, 3b), confirming suitability for 12 V automotive supply rail protection.
Thermally, it features RθJA = 55°C/W and RθJC = 10°C/W, supporting sustained operation up to TJ = +150°C. Its DO-214AB (SMC) package delivers 200 A non-repetitive forward surge capability and complies with JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse voltage before significant leakage; sets operating margin below clamping threshold. |
| VBR min/max | 11.1 / 12.3 V @ 1 mA - Confirmed breakdown range ensures reliable turn-on during transients without premature conduction. |
| VC @ IPPM | 17.0 V @ 92 A - Clamping voltage under 10/1000 µs surge defines worst-case overvoltage seen by protected ICs. |
| PPK | 1500 W - Peak pulse power rating determines survivability of high-energy transients like load dump. |
| IR @ VWM | <1 µA - Ultra-low reverse leakage minimizes standby power loss and avoids false triggering in high-impedance circuits. |
| TJ max | +150 °C - Junction temperature limit enables use in under-hood automotive environments and enclosed industrial enclosures. |
Pinout & Package
DO-214AB (SMC) surface-mount package with matte tin-plated leads; cathode band omitted due to bidirectional configuration - terminals are non-polarized and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional transient path | Either terminal serves as input/output for surge current; no polarity marking required. |
| Case (cathode band absent) | Thermal and mechanical anchor | Exposed copper pad on PCB provides primary heat dissipation path per RθJC = 10°C/W spec. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated reliability for automotive power electronics including engine control units and body controllers. |
| ISO 7637-2 compliance | Guaranteed immunity to standardized vehicle electrical transients - eliminates need for additional pulse testing. |
| Glass passivated junction | Enables stable VBR tolerance and long-term leakage stability under thermal cycling and humidity stress. |
| Fast response time <1.0 ps | Clamps ESD and lightning-induced spikes before sensitive downstream circuitry sustains damage. |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS directives for environmentally constrained industrial and consumer applications. |
Applications
| Automotive Power Line Protection | Industrial PLC Digital Input |
|---|---|
Use Scenario: Protecting 12 V supply rails in automotive ECUs against load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed between power rail and ground, absorbing >1500 W surges within nanoseconds. Use Value: Prevents latch-up or destruction of microcontrollers and CAN transceivers during battery disconnection events. | Use Scenario: Shielding 24 V digital input channels in programmable logic controllers from field-wiring induced transients. IC Role / Device Role / Timing Role: Primary surge arrestor at connector interface, shunting induced energy before reaching optocoupler or level-shifter ICs. Use Value: Enables >100,000 insertion cycles without degradation, validated per IEC 61000-4-5 surge immunity requirements. |
| Telecom Equipment Surge Suppression | Consumer Appliance Motor Control |
Use Scenario: Safeguarding Ethernet PHY and PoE controller interfaces in outdoor telecom cabinets exposed to lightning-induced surges. IC Role / Device Role / Timing Role: First-line transient suppressor on data line pairs, operating symmetrically to preserve signal integrity. Use Value: Maintains <1 pF junction capacitance (per Fig.3) to avoid signal distortion in 100 Mbps+ links. | Use Scenario: Protecting H-bridge gate drivers in washing machine motor inverters from back-EMF spikes during commutation. IC Role / Device Role / Timing Role: Clamp diode across DC bus rails, limiting voltage overshoot during MOSFET turn-off transitions. Use Value: Withstands 200 A single-half-sine surge (IFSM), preventing catastrophic failure during repeated motor stall conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10CA | Lower PPK = 600 W; same VWM/VBR but higher VC = 17.0 V @ 35 A; SMB package (smaller footprint, higher RθJA). | Suitable for space-constrained consumer electronics where 1500 W surge margin is not required. | Select SMBJ10CA only when board area is critical and peak transient energy remains ≤600 W. |
| 1.5KE10CA | Through-hole TO-204AA (DO-41); identical VWM/VBR/VC, but PPK = 1500 W and slower response (~1 ns); higher thermal mass. | Preferred for legacy through-hole designs or high-vibration environments requiring mechanical retention. | Choose 1.5KE10CA when reworkability, vibration resistance, or compatibility with existing through-hole assembly is prioritized. |
Compared with SMBJ10CA and 1.5KE10CA, the SMCJ10CAH delivers identical clamping performance at 1500 W in a surface-mount DO-214AB package with AEC-Q101 qualification - making it the optimal choice for new automotive and industrial designs requiring high-reliability, automated assembly, and ISO 7637-2 compliance.
Availability
SMCJ10CAH is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC development, and telecom infrastructure projects requiring stable component supply and full traceability.
Supply support for SMCJ10CAH 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, and power devices since 1979.
The SMCJ series was developed specifically for AEC-Q101-compliant automotive transient protection, targeting ISO 7637-2 immunity in 12 V/24 V systems while maintaining industrial-grade reliability and halogen-free compliance.
FAQ
What does the 'CAH' suffix indicate in SMCJ10CAH?
The 'CAH' suffix in SMCJ10CAH denotes a bidirectional configuration ('C') with tightened breakdown voltage tolerance ('A' grade: VBR = 11.1–12.3 V vs. standard 'H' grade's 11.1–13.6 V) and halogen-free construction ('H'). This version is explicitly qualified to AEC-Q101 and meets IEC 61249-2-21 standards - critical for automotive and industrial deployments requiring tighter parametric control and environmental compliance. The SMCJ10CAH maintains identical packaging and thermal specs as other SMCJ10xH variants.
Does SMCJ10CAH require a heatsink for 1500 W surge handling?
No external heatsink is required for single-event 1500 W surge handling because the SMCJ10CAH's 10/1000 µs pulse duration is too short for significant thermal accumulation - its RθJC = 10°C/W and 0.210 g mass allow safe dissipation into the PCB copper. However, for repetitive surges (>1 Hz), thermal design must follow Fig.2 derating curves and ensure adequate copper area (≥100 mm² per pad) per the DO-214AB footprint. The SMCJ10CAH's rated TJ max = +150°C supports ambient temperatures up to +125°C when properly mounted.
How does SMCJ10CAH differ from unidirectional SMCJ10H in circuit implementation?
The SMCJ10CAH is bidirectional and has no polarity marking, allowing direct placement across any two nodes needing symmetrical transient suppression - e.g., differential data lines or AC-coupled power rails. In contrast, the unidirectional SMCJ10H requires correct anode/cathode orientation relative to DC bias and cannot clamp positive transients on its cathode side. Both share identical VWM (10 V), VBR, and VC, but the SMCJ10CAH's dual-path structure makes it mandatory for ISO 7637-2 Pulse 1 (negative-going) and Pulse 2b (positive-going) compliance - a requirement the SMCJ10H alone cannot fulfill.
Is SMCJ10CAH compatible with lead-free reflow soldering profiles?
Yes, the SMCJ10CAH is fully compatible with standard lead-free reflow profiles (J-STD-020-compliant), including peak temperatures up to +260°C for ≤60 seconds. Its matte tin-plated leads and UL 94V-0 molding compound withstand multiple thermal cycles without delamination or solder joint degradation. The device's MSL Level 1 rating confirms unlimited floor life at ≤30°C/60% RH - eliminating bake requirements prior to assembly. This ensures robust manufacturability in high-volume SMT lines producing automotive and industrial products using the SMCJ10CAH.
What is the maximum allowable reverse leakage current for SMCJ10CAH at 25°C?
The maximum reverse leakage current (IR) for SMCJ10CAH is specified as <1 µA at VWM = 10 V and TA = 25°C - verified per the Electrical Specifications table on page 2 of the Taiwan Semiconductor datasheet (Version A2102). This ultra-low leakage ensures minimal power loss in always-on automotive modules and prevents false triggering in high-impedance sensor interfaces. At elevated temperatures (e.g., +85°C), IR rises predictably per the device's exponential junction behavior but remains well below 10 µA, preserving system-level efficiency in the SMCJ10CAH's intended operating range.
SMCJ10CAH 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):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 92A
- 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)
SMCJ10CAH FAQ
1.How can I place an order for SMCJ10CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ10CAH 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 SMCJ10CAH reliable?
The price and inventory of SMCJ10CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ10CAH is usually 5 days.
3.What payment methods are accepted for SMCJ10CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ10CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ10CAH?
SMCJ10CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ10CAH 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 SMCJ10CAH?
For technical support, including SMCJ10CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ10CAH requirements.
6.How does Aetrix verify that SMCJ10CAH is sourced from the original manufacturer or authorized distributors?
All SMCJ10CAH 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 SMCJ10CAH meets industry standards.
7.What is the process for return or replacement of SMCJ10CAH?
All SMCJ10CAH units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ10CAH, 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 SMCJ10CAH part is unused and in its original packaging.
Return procedure for SMCJ10CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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