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Taiwan Semiconductor Corporation SMCJ10AH
- Part No.:
- SMCJ10AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ10AH.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,998
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Product details
Overview
SMCJ10AH from Taiwan Semiconductor is a unidirectional 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. It delivers AEC-Q101 qualification, ISO 7637-2 compliance, and sub-1ps response for automotive and industrial surge protection.
For engineers reviewing the SMCJ10AH datasheet, SMCJ10AH pinout, SMCJ10AH application, or SMCJ10AH equivalent, this device serves as a high-reliability, surface-mount TVS for ESD and load-switching transient suppression in 12V automotive subsystems, power supply inputs, and industrial I/O interfaces where low clamping voltage and fast response are critical.
Technical Context
The SMCJ10AH operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its 11.1–12.3V breakdown range at 1mA test current. Its glass-passivated junction ensures stable VBR tolerance and low leakage (<1μA at 10V), while the DO-214AB package provides 10°C/W junction-to-case thermal resistance for sustained 5W steady-state dissipation.
Designed for ISO 7637-2 Pulse 1/2a/2b/3a/3b immunity, it clamps transients to ≤17.0V at 92A (10/1000μs waveform), enabling robust protection of downstream 12V-rated ICs such as CAN transceivers, microcontrollers, and sensor signal chains without overvoltage stress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before conduction begins; matches standard 12V automotive nominal rail with margin. |
| VBR (min/max) | 11.1 / 12.3 V @ 1 mA - Confirmed breakdown threshold ensures reliable triggering above system noise but below IC absolute maximum ratings. |
| VC @ IPPM | 17.0 V @ 92 A - Clamping voltage limits protected circuit exposure during 10/1000μs surges, staying well below 20V IC damage thresholds. |
| PPK | 1500 W - Peak pulse power rating supports high-energy transients per ISO 7637-2 without degradation. |
| IR @ VWM | <1 μA - Ultra-low reverse leakage preserves battery life in always-on automotive modules and avoids false triggers. |
| TJ max | 150 °C - Enables operation in under-hood environments and high-power-density PCB layouts with minimal derating. |
Pinout & Package
DO-214AB (SMC) surface-mount package with cathode band marking; 2-terminal unidirectional configuration. Matte tin-plated leads meet J-STD-002 solderability; polarity marked on body per JEDEC standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or low-impedance return path; forms current loop during clamping event. |
| Cathode | Protected line input | Connected to 12V rail or signal line; absorbs positive transients by shunting to anode when VAK > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress requirements. |
| Glass-passivated junction | Ensures consistent VBR stability across temperature and lifetime, minimizing drift in harsh environments. |
| ISO 7637-2 compliant | Meets Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line impedance coupling) waveforms. |
| Fast response time | <1 ps rise time enables clamping before sensitive logic or analog circuits experience overvoltage stress. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input |
|---|---|
Use Scenario: Protecting LIN bus transceivers and microcontroller GPIOs from load-dump and alternator ripple in door module electronics. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 12V supply rail and ground, clamping negative-going transients and positive spikes induced by relay switching. Use Value: Limits voltage excursion to ≤17.0V during 10/1000μs pulses, preventing latch-up or gate oxide damage in 20V-tolerant MCU I/O cells. | Use Scenario: Shielding 24V digital input channels from field-wiring induced surges in factory automation controllers. IC Role / Device Role / Timing Role: Standoff protection element mounted at connector entry point, conducting only during transient events exceeding 10V. Use Value: Withstands ≥92A peak current without failure, maintaining signal integrity during repeated 1kV/500Ω surge tests per IEC 61000-4-5. |
| Telecom Power Supply Input | Consumer Appliance Motor Driver |
Use Scenario: Safeguarding AC/DC front-end rectifiers and PFC controllers against lightning-induced surges on mains-connected telecom equipment. IC Role / Device Role / Timing Role: Secondary-level TVS on DC bus after bulk capacitor, absorbing residual energy not filtered by MOVs or common-mode chokes. Use Value: 1500W peak power rating handles high-energy ringwave transients while maintaining <1μA leakage to avoid standby power penalty. | Use Scenario: Protecting half-bridge gate drivers from inductive kickback during BLDC motor commutation in smart home appliances. IC Role / Device Role / Timing Role: Reverse-biased clamp across high-side driver supply rail, suppressing voltage spikes generated by motor winding inductance. Use Value: 17.0V clamping voltage ensures gate-source voltage stays within ±20V safe operating area of 600V MOSFET drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10A | 600W peak power, SMB package (smaller footprint, higher RθJA = 75°C/W), same VWM/VBR specs. | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 1 or high-current load dump. | Select SMCJ10AH when 1500W surge handling and AEC-Q101 qualification are required. |
| SMCJ10A | Same 1500W rating and DO-214AB package, but non-AEC-Q101; VBR min = 11.1V, VC = 18.8V @ 83A. | Higher clamping voltage and no automotive qualification; acceptable for industrial/commercial use only. | Choose SMCJ10AH over SMCJ10A when automotive-grade reliability and tighter clamping (17.0V vs. 18.8V) are mandatory. |
Compared with SMBJ10A and SMCJ10A, the SMCJ10AH offers superior surge robustness (1500W), lower clamping voltage (17.0V), and AEC-Q101 validation-making it the preferred choice for automotive 12V rail protection where transient immunity and long-term reliability are non-negotiable.
Availability
SMCJ10AH is available at Aetrix Electronics and suitable for automotive electronics, industrial control systems, and telecom power supply designs requiring stable component supply, full traceability, and lifecycle continuity.
Supply support for SMCJ10AH 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 distribution and AEC-Q101 validation capability.
The SMCJ series was developed specifically for high-energy transient suppression in automotive and industrial environments, emphasizing low clamping voltage, fast response, and robust packaging for under-hood and factory-floor deployment.
FAQ
What is the breakdown voltage range for SMCJ10AH?
The SMCJ10AH has a guaranteed breakdown voltage range of 11.1 V to 12.3 V at 1 mA test current, measured per ANSI/IEEE C62.35. This tight VBR window ensures predictable turn-on behavior in 12V automotive systems and prevents premature conduction during normal operation of the SMCJ10AH.
Is SMCJ10AH suitable for bidirectional transient protection?
No, the SMCJ10AH is a unidirectional TVS diode intended for protection against positive transients on DC rails. For bidirectional applications, Taiwan Semiconductor specifies parts with "CH" or "CAH" suffixes (e.g., SMCJ10CH); the SMCJ10AH lacks symmetrical breakdown characteristics and must be used with correct polarity alignment in circuit design.
Does SMCJ10AH meet automotive qualification standards?
Yes, the SMCJ10AH is AEC-Q101 qualified and meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b test requirements. This certification confirms its suitability for automotive powertrain, body, and infotainment systems where reliability under electrical stress and temperature extremes is essential for the SMCJ10AH.
What is the maximum clamping voltage of SMCJ10AH at rated surge current?
The SMCJ10AH clamps to a maximum of 17.0 V at 92 A peak pulse current (10/1000μs waveform), as specified in the Electrical Specifications table. This low VC value directly protects 12V-rated ICs by limiting transient overvoltage exposure during high-energy events, a key performance advantage of the SMCJ10AH.
How does SMCJ10AH differ from SMCJ10A?
The SMCJ10AH features tighter VBR tolerance (11.1–12.3 V vs. 11.1–13.6 V), lower clamping voltage (17.0 V vs. 18.8 V at rated current), and AEC-Q101 qualification-while sharing the same DO-214AB package and 1500W rating. These enhancements make the SMCJ10AH more precise and automotive-ready than the standard SMCJ10A.
SMCJ10AH 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:
- 1
- Bidirectional Channels:
- -
- 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)
SMCJ10AH FAQ
1.How can I place an order for SMCJ10AH through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ10AH 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 SMCJ10AH reliable?
The price and inventory of SMCJ10AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ10AH is usually 5 days.
3.What payment methods are accepted for SMCJ10AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ10AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ10AH?
SMCJ10AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ10AH 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 SMCJ10AH?
For technical support, including SMCJ10AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ10AH requirements.
6.How does Aetrix verify that SMCJ10AH is sourced from the original manufacturer or authorized distributors?
All SMCJ10AH 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 SMCJ10AH meets industry standards.
7.What is the process for return or replacement of SMCJ10AH?
All SMCJ10AH units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ10AH, 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 SMCJ10AH part is unused and in its original packaging.
Return procedure for SMCJ10AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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