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Taiwan Semiconductor Corporation SMB10J10CAH
- Part No.:
- SMB10J10CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J10CAH.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,391
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Product details
Overview
SMB10J10CAH from Taiwan Semiconductor is a bidirectional 1000W transient voltage suppressor (TVS) diode in DO-214AA (SMB) package, with 10V breakdown voltage (VBR), 11.1V standoff voltage (VWM), and 17.0V clamping voltage (VC) at 58.8A peak pulse current. It protects automotive and industrial circuits against ISO 7637-2 pulses and ESD transients.
For engineers reviewing the SMB10J10CAH datasheet, SMB10J10CAH pinout, SMB10J10CAH application, or SMB10J10CAH equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, thermal resistance data, clamping performance under 10/1000μs waveform, and bidirectional TVS implementation guidance for robust system-level surge immunity.
Technical Context
This bidirectional TVS diode uses a glass-passivated junction to achieve sub-1ps response time and stable clamping across temperature. Its 175°C maximum junction temperature and JESD201 Class 2 whisker resistance support under-hood automotive deployment.
The device meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b test requirements and complies with RoHS and halogen-free standards per IEC 61249-2-21. Thermal performance is defined by RθJL = 20°C/W and RθJA = 100°C/W.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 11.1 V / 12.3 V - Ensures reliable conduction onset above circuit operating voltage while avoiding false triggering |
| VWM | 10 V - Maximum continuous reverse working voltage before leakage exceeds 5 µA |
| VC @ IPPM | 17.0 V @ 58.8 A - Clamped voltage during 10/1000µs surge, limiting stress on downstream ICs |
| PPK | 1000 W - Peak pulse power handling capability per single 1ms transient event |
| TJ max | +175 °C - Enables operation in high-temperature environments such as engine control units |
| RθJL | 20 °C/W - Low junction-to-lead thermal resistance supports efficient heat transfer to PCB copper |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, low-profile, matte tin-plated leads, polarity indicated by cathode band (bidirectional configuration has no functional polarity marking).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (bidirectional) | Transient current path | Both terminals function identically; symmetric clamping behavior regardless of surge polarity |
| Case (body) | Thermal interface | DO-214AA body provides mechanical mounting and contributes to thermal dissipation via PCB pad contact |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard |
| Glass-passivated junction | Ensures stable VBR tolerance and long-term parameter stability under humidity and thermal stress |
| ISO 7637-2 compliance | Guarantees survivability against real-world automotive load-dump and inductive-switching transients |
| Moisture sensitivity level 1 | Eliminates need for baking prior to reflow; compatible with standard SMT assembly processes |
Applications
| Automotive Lighting Systems | Engine Control Units (ECUs) |
|---|---|
Use Scenario: Protecting LED driver ICs and CAN transceivers from load-dump spikes during headlamp switching. IC Role / Device Role / Timing Role: Bidirectional clamping element placed at board-level input to absorb >1000W transients without failure. Use Value: Prevents latch-up or permanent damage to 5V/3.3V logic rails when subjected to ISO 7637-2 Pulse 5a events up to 120V. | Use Scenario: Safeguarding microcontroller power and signal lines from alternator-induced surges and relay coil flyback. IC Role / Device Role / Timing Role: Primary TVS on 12V supply rail and sensor input lines to maintain functional safety integrity. Use Value: Maintains system uptime by clamping transients to ≤17.0V, well below the 20V absolute maximum rating of most automotive MCUs. |
| Industrial Motor Drives | Smart Building Sensors |
Use Scenario: Shielding gate drivers and current-sense amplifiers from inductive kickback in BLDC motor inverters. IC Role / Device Role / Timing Role: Fast-response (sub-1ps) transient absorber located adjacent to IGBT/MOSFET gate drive traces. Use Value: Limits voltage overshoot to <17.0V during 100A+ switching events, preventing unintended turn-on or oxide breakdown. | Use Scenario: ESD protection for RS-485 transceivers and environmental sensors exposed to human touch or cable coupling. IC Role / Device Role / Timing Role: Board-edge TVS on communication lines to shunt ±15kV contact discharge per IEC 61000-4-2. Use Value: Achieves <100ns clamping latency and <5µA leakage at 10V, preserving signal integrity in low-power wireless nodes. |
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 | Same DO-214AA package, identical VWM/VBR/VC, but rated at 600W PPK (vs. 1000W) | Limited to lower-energy transients; not suitable for ISO 7637-2 Pulse 5a load-dump simulation | Select SMB10J10CAH where full 1000W surge immunity is required in automotive front-end designs |
| SMCJ10CA | Higher PPK (1500W), same VWM/VBR/VC, but larger DO-214AB (SMC) package | Requires PCB layout change due to 7.11mm x 6.22mm footprint vs. SMB's 4.57mm x 3.94mm | Choose SMB10J10CAH when space-constrained layouts demand SMB footprint without sacrificing 1000W rating |
Compared with SMBJ10CA and SMCJ10CA, SMB10J10CAH uniquely delivers 1000W surge capability in the compact DO-214AA outline while maintaining AEC-Q101 qualification-enabling drop-in replacement for legacy 600W designs only where enhanced energy handling is needed without board redesign.
Availability
SMB10J10CAH is available at Aetrix Electronics and suitable for automotive lighting systems, engine control units, industrial motor drives, and smart building sensor interfaces requiring stable component supply and AEC-Q101-compliant surge protection.
Supply support for SMB10J10CAH 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, serving global automotive, industrial, and consumer markets since 1979.
The SMB10JxxCAH series belongs to TSC's AEC-Q101-qualified TVS portfolio, engineered specifically for high-reliability transient suppression in harsh-environment automotive electronics where ISO 7637-2 compliance and thermal robustness are mandatory.
FAQ
What does the 'CAH' suffix indicate in SMB10J10CAH?
The 'CAH' suffix denotes a bidirectional configuration (C), AEC-Q101 qualification (A), and halogen-free construction (H). Unlike unidirectional variants ending in 'AH', SMB10J10CAH provides symmetrical clamping for both positive and negative transients without polarity dependency-critical for protecting differential buses like CAN or RS-485. This designation is confirmed in TSC's official ordering table and marking code documentation for SMB10J10CAH.
Is SMB10J10CAH suitable for ISO 7637-2 Pulse 5a (load dump) protection?
Yes, SMB10J10CAH is explicitly rated for ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b-and its 1000W peak pulse power rating enables it to handle Pulse 5a events when used with appropriate series impedance. The device's 17.0V clamping voltage at 58.8A ensures downstream components remain within safe operating limits during 120V/350ms load-dump transients. TSC's application notes confirm SMB10J10CAH deployment in automotive front-end power rails for this purpose.
What is the maximum junction temperature and thermal resistance of SMB10J10CAH?
SMB10J10CAH has a maximum junction temperature (TJ) of +175°C and junction-to-lead thermal resistance (RθJL) of 20°C/W. These values are specified in TSC's Absolute Maximum Ratings and Thermal Performance tables. The low RθJL enables effective heat transfer to the PCB through the SMB package leads, supporting sustained operation in under-hood environments where ambient temperatures exceed 125°C-provided proper copper pour and thermal vias are implemented per TSC's recommended pad layout.
How does SMB10J10CAH differ from SMBJ10CA in terms of surge capability?
SMB10J10CAH delivers 1000W peak pulse power (PPK) versus SMBJ10CA's 600W rating-making it capable of absorbing 67% more transient energy. Both share identical VWM (10V), VBR (11.1–12.3V), and VC (17.0V), but SMB10J10CAH's higher PPK allows it to survive ISO 7637-2 Pulse 5a load-dump events without degradation. This difference is documented in TSC's comparative product tables and electrical specifications sheets for SMB10J10CAH.
Does SMB10J10CAH require special handling during SMT assembly?
No, SMB10J10CAH has Moisture Sensitivity Level (MSL) 1 per J-STD-020, meaning it can be stored indefinitely at ambient conditions and placed directly into reflow without baking. Its matte tin-plated leads comply with J-STD-002 for solderability, and the DO-214AA package is optimized for automated pick-and-place. TSC's packaging documentation confirms MSL-1 status and compatibility with standard lead-free reflow profiles-eliminating process overhead for high-volume manufacturing of SMB10J10CAH.
SMB10J10CAH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AA, SMB
- Series:
- SMB10J
- 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):
- 58.8A
- Power - Peak Pulse:
- 1000W (1kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMB10J10CAH FAQ
1.How can I place an order for SMB10J10CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J10CAH 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 SMB10J10CAH reliable?
The price and inventory of SMB10J10CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J10CAH is usually 5 days.
3.What payment methods are accepted for SMB10J10CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J10CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J10CAH?
SMB10J10CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J10CAH 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 SMB10J10CAH?
For technical support, including SMB10J10CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J10CAH requirements.
6.How does Aetrix verify that SMB10J10CAH is sourced from the original manufacturer or authorized distributors?
All SMB10J10CAH 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 SMB10J10CAH meets industry standards.
7.What is the process for return or replacement of SMB10J10CAH?
All SMB10J10CAH units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J10CAH, 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 SMB10J10CAH part is unused and in its original packaging.
Return procedure for SMB10J10CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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