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Taiwan Semiconductor Corporation SMCJ10H
- Part No.:
- SMCJ10H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ10H.pdf
- Description:
- 1500W, 12.4V, 10%, UNIDIRECTIONA
- Quantity:
- Payment:
- Shipping:
Inventory:5,263
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Product details
Overview
SMCJ10H from Taiwan Semiconductor is a unidirectional 1500W surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, with 11.1–13.6 V breakdown voltage (VBR), 10 V working stand-off voltage (VWM), and 18.8 V maximum clamping voltage (VC) at 83 A peak pulse current. It protects automotive and industrial power rails against ISO 7637-2 pulses and ESD.
For engineers reviewing the SMCJ10H datasheet, SMCJ10H pinout, SMCJ10H application, or SMCJ10H equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, thermal resistance data, clamping performance under 10/1000 µs surge, and direct alternatives for automotive-grade overvoltage protection design.
Technical Context
The SMCJ10H is a single-die, unidirectional TVS diode optimized for fast transient suppression in 12 V automotive systems. Its glass-passivated junction enables sub-1 ps response time and <1 µA reverse leakage above 10 V, meeting ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b requirements.
With a 10 °C/W junction-to-case thermal resistance and 55 °C/W junction-to-ambient rating, it sustains 1500 W peak pulse power (1 ms) and 5 W steady-state dissipation. Forward voltage is 3.5 V at 100 A - consistent with SMCJ5.0H–SMCJ90H series devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before clamping begins; matches nominal 12 V rail systems with margin. |
| VBR min/max | 11.1–13.6 V @ 5 mA - Confirmed breakdown range ensures reliable turn-on without premature conduction during normal operation. |
| VC @ IPPM | 18.8 V @ 83 A - Clamping voltage limits downstream IC stress during 10/1000 µs transients per IEC 61000-4-5. |
| PPK | 1500 W - Peak pulse power rating supports high-energy load dump and inductive switching events in automotive ECUs. |
| TJ max | +150 °C - Enables operation in under-hood environments with validated AEC-Q101 qualification. |
| RθJC | 10 °C/W - Low thermal resistance allows efficient heat transfer to PCB copper, critical for sustained surge handling. |
Pinout & Package
DO-214AB (SMC) surface-mount package with cathode band marking; matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or low-impedance return path; defines clamping reference for unidirectional operation. |
| Cathode | High-side surge input terminal | Connected to protected line (e.g., battery feed); conducts transient current to ground when VIN exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test conditions including temperature cycling, HTRB, and ESD. |
| ISO 7637-2 compliance | Meets Pulse 1 (inductive load disconnect), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling) waveforms. |
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal and humidity stress (MSL Level 1). |
| Sub-1 ps response time | Enables clamping before sensitive downstream logic or analog circuitry experiences overvoltage damage. |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive for environmentally constrained industrial and automotive supply chains. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Protection |
|---|---|
|
Use Scenario: Protects 12 V power inputs of BCM microcontrollers and CAN transceivers from load dump and alternator ripple. IC Role / Device Role: Unidirectional TVS placed between battery rail and local LDO/regulator input. Use Value: Limits clamping voltage to 18.8 V, preventing latch-up or gate oxide damage in 24 V tolerant but 3.3/5 V domain ICs. |
Use Scenario: Shields 24 V digital input channels of programmable logic controllers from field-wiring induced surges and ESD. IC Role / Device Role: Front-end transient clamp on optocoupler or Schmitt-trigger input stage. Use Value: Withstands repeated 1 kV/500 A 10/1000 µs surges while maintaining <1 µA leakage at 10 V for low-power sensing accuracy. |
| Telecom Power Supply Input | Automotive Infotainment USB Power Rail |
|
Use Scenario: Guards primary-side DC-DC converter inputs in telecom base station power supplies against lightning-induced surges. IC Role / Device Role: First-line overvoltage protection before bulk capacitor and controller IC. Use Value: 1500 W peak power rating handles multi-kA surge currents without degradation, validated per IEC 61000-4-5. |
Use Scenario: Suppresses transients on 5 V USB VBUS lines in head units exposed to hot-swap and cable coupling events. IC Role / Device Role: Secondary-stage TVS after primary DC-DC, co-located with USB switch IC. Use Value: 18.8 V clamping ensures USB PHY ICs (rated to 6 V abs max) remain within safe operating area during 10/1000 µs pulses. |
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 | Lower peak power (600 W), SMB package (smaller footprint), 10.0–11.1 V VBR, 17.0 V VC @ 35 A | Suitable for space-constrained consumer electronics; insufficient for automotive load dump per ISO 7637-2 Pulse 5a. | Select SMBJ10A only if surge energy is limited to ≤600 W and PCB layout cannot accommodate SMC footprint. |
| 1.5KE10A | Through-hole TO-204AA (DO-41), 1500 W rating, 10.0–11.1 V VBR, 17.0 V VC @ 88 A, no AEC-Q101 qualification | Requires manual assembly or wave soldering; lacks automotive qualification and moisture sensitivity control. | Choose 1.5KE10A for legacy through-hole designs where automated SMT placement is unavailable and AEC-Q101 is not required. |
Compared with SMBJ10A and 1.5KE10A, the SMCJ10H provides higher surge robustness in an AEC-Q101-qualified SMT package, enabling automated manufacturing and under-hood deployment without derating - critical for modern automotive electronics.
Availability
SMCJ10H is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC input protection, and telecom power supply front-end surge suppression requiring stable component supply across extended temperature ranges and high-reliability production cycles.
Supply support for SMCJ10H 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 for automotive, industrial, and computing markets.
The SMCJ10H belongs to TSC's AEC-Q101-qualified SMCJ-H series, engineered specifically for high-energy transient suppression in 12 V/24 V automotive subsystems and ruggedized industrial interfaces.
FAQ
What is the breakdown voltage range of the SMCJ10H?
The SMCJ10H has a minimum breakdown voltage (VBR) of 11.1 V and a maximum of 13.6 V at 5 mA test current, measured per ANSI/IEEE C62.35. This range ensures consistent clamping behavior across production lots while accommodating thermal drift and manufacturing tolerances - critical for reliable protection in 12 V automotive systems where the SMCJ10H is commonly deployed.
Is the SMCJ10H suitable for bidirectional transient suppression?
No, the SMCJ10H is a unidirectional TVS diode intended for DC rail protection with defined anode-cathode polarity. For bidirectional applications such as AC lines or data bus protection, Taiwan Semiconductor offers the SMCJ10AH variant (marked GDW for unidirectional, GDX for bidirectional), which features symmetrical clamping in both directions and identical VWM/VBR ratings.
Does the SMCJ10H meet automotive qualification standards?
Yes, the SMCJ10H is AEC-Q101 qualified and meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b test requirements. Its glass-passivated junction, MSL Level 1 moisture sensitivity rating, and +150 °C maximum junction temperature confirm suitability for under-hood automotive applications - a key differentiator versus non-automotive TVS diodes like the 1.5KE10A.
What is the clamping voltage of the SMCJ10H at rated surge current?
The SMCJ10H clamps to a maximum of 18.8 V at 83 A peak pulse current (IPPM) under the standardized 10/1000 µs waveform. This value is measured per Figure 5 in the datasheet and defines the upper voltage limit imposed on protected circuitry during worst-case transients - directly enabling safe interface with 24 V tolerant but low-voltage domain ICs.
How does the SMCJ10H compare to the SMBJ10A in terms of surge handling capability?
The SMCJ10H delivers 1500 W peak pulse power versus 600 W for the SMBJ10A, with corresponding higher IPPM (83 A vs. 35 A) and slightly higher VC (18.8 V vs. 17.0 V). The larger DO-214AB (SMC) package enables superior thermal dissipation and makes the SMCJ10H appropriate for automotive load dump, whereas the SMBJ10A suits lower-energy consumer applications where board space is constrained.
SMCJ10H 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:
- 18.8V
- Current - Peak Pulse (10/1000µs):
- 83A
- 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)
SMCJ10H FAQ
1.How can I place an order for SMCJ10H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ10H 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 SMCJ10H reliable?
The price and inventory of SMCJ10H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ10H is usually 5 days.
3.What payment methods are accepted for SMCJ10H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ10H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ10H?
SMCJ10H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ10H 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 SMCJ10H?
For technical support, including SMCJ10H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ10H requirements.
6.How does Aetrix verify that SMCJ10H is sourced from the original manufacturer or authorized distributors?
All SMCJ10H 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 SMCJ10H meets industry standards.
7.What is the process for return or replacement of SMCJ10H?
All SMCJ10H units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ10H, 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 SMCJ10H part is unused and in its original packaging.
Return procedure for SMCJ10H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ10H Tags
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