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Taiwan Semiconductor Corporation SMDJ10CAH
- Part No.:
- SMDJ10CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMDJ10CAH.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,345
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Product details
Overview
SMDJ10CAH from Taiwan Semiconductor is a bidirectional 3000W transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, with 10V working stand-off voltage (VWM), 11.1–12.3V breakdown voltage (VBR), and 17.0V maximum clamping voltage (VC) at 176.5A peak pulse current - designed for automotive-grade ESD and load-switching surge protection in power supply rails and data lines.
For engineers reviewing the SMDJ10CAH datasheet, SMDJ10CAH pinout, SMDJ10CAH application, or SMDJ10CAH equivalent, key selection criteria include bidirectional clamping performance, AEC-Q101 qualification, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, fast sub-1ps response time, and DO-214AB thermal resistance (RθJA = 75°C/W).
Technical Context
The SMDJ10CAH implements a glass-passivated silicon junction optimized for high-energy transient suppression in both polarities. Its bidirectional configuration enables symmetrical clamping without polarity dependency, supporting robust protection against reverse-polarity surges and ESD events per IEC 61000-4-2.
It operates across –55°C to +175°C junction temperature range, with 15°C/W junction-to-lead thermal resistance enabling effective heat dissipation in high-power pulse conditions. The device meets JESD201 Class 2 whisker resistance and J-STD-020 Level 1 moisture sensitivity requirements for automated SMT assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR @ IT=1mA | 11.1–12.3 V - Breakdown threshold where device transitions from high-impedance to low-impedance clamping state |
| VC @ IPPM=176.5A | 17.0 V - Clamped voltage during 10/1000µs surge, limiting downstream stress to ≤17V |
| PPK | 3000 W - Peak pulse power handling capability under standardized 1ms non-repetitive surge |
| TJ max | +175 °C - Maximum junction temperature enabling operation in under-hood automotive environments |
| RθJA | 75 °C/W - Thermal resistance from junction to ambient, defining derating above 25°C ambient |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, bidirectional, cathode band not applicable (symmetrical terminals).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (bidirectional) | Transient current path | Both terminals function identically - surge current flows symmetrically regardless of polarity |
| Case (body) | Thermal conduction path | DO-214AB copper lead frame provides primary heat transfer to PCB copper pour |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD |
| ISO 7637-2 compliant | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (battery disconnect), and Pulse 3a/3b (switching transients) |
| Sub-1ps response time | Clamps within <1 picosecond - faster than most system-level ESD threats and relay bounce transients |
| Halogen-free & RoHS | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally constrained applications |
Applications
| Automotive Power Rail Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting 12V battery-fed ECUs from load-dump spikes and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional TVS placed across power input to clamp transients before they reach LDOs or microcontrollers. Use Value: Limits voltage to ≤17.0V during 3000W pulses, preventing latch-up or gate oxide damage in downstream ICs. | Use Scenario: Shielding CAN_H/CAN_L differential pair from ESD and inductive coupling in factory automation nodes. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS connected line-to-line and line-to-ground on each bus wire. Use Value: Maintains signal integrity with <1pF junction capacitance while suppressing ±15kV contact ESD per IEC 61000-4-2. |
| Telecom DC Power Input | Consumer USB-C Port Protection |
Use Scenario: Safeguarding PoE-powered switches and base stations against lightning-induced surges on 48V DC inputs. IC Role / Device Role / Timing Role: Primary front-end TVS on DC input rail, coordinated with secondary MOV/GDT stages. Use Value: Absorbs 3000W single-event surges without degradation, preserving long-term reliability in outdoor deployments. | Use Scenario: Protecting USB-C CC and VBUS lines in portable chargers and docks from hot-plug transients and ESD. IC Role / Device Role / Timing Role: Bidirectional clamping device placed between connector and port controller or power delivery IC. Use Value: Enables full AEC-Q101 reliability grade in consumer-grade form factor, meeting USB-IF ESD test requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC10CA | Lower PPK (1500W), same VWM/VBR range, DO-214AA (SMB) package | Reduced surge margin; suitable only for lower-energy environments (e.g., non-automotive consumer) | Select when board space allows SMB footprint and 3000W rating is not required |
| SMCJ10CA | Identical electrical specs and DO-214AB package; manufactured by Vishay, not AEC-Q101 qualified | Lacks automotive qualification; acceptable for industrial/commercial use where AEC-Q101 is not mandated | Choose for cost-sensitive non-automotive designs requiring identical clamping behavior |
Compared with SAC10CA and SMCJ10CA, the SMDJ10CAH delivers higher energy handling (3000W vs. 1500W/3000W) and mandatory AEC-Q101 certification - making it the only option qualified for under-hood automotive deployment without design revalidation.
Availability
SMDJ10CAH is available at Aetrix Electronics and suitable for automotive power rail protection, industrial CAN bus interface, and telecom DC input protection requiring stable component supply and long-term lifecycle assurance.
Supply support for SMDJ10CAH 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 computing markets.
The SMDJ series was engineered specifically for AEC-Q101-compliant transient suppression in harsh automotive environments, emphasizing high PPK, low clamping voltage, and robust thermal performance in surface-mount packages.
FAQ
What does the "CAH" suffix indicate in SMDJ10CAH?
The "CAH" suffix denotes a bidirectional configuration (C), AEC-Q101 qualification (A), and halogen-free construction (H). Unlike unidirectional "AH" variants, SMDJ10CAH clamps symmetrically in both polarities - essential for protecting AC-coupled or differential signal lines where voltage polarity reverses.
Is SMDJ10CAH compatible with lead-free reflow soldering processes?
Yes, SMDJ10CAH supports lead-free reflow per J-STD-020 Level 1 (MSL-1), with matte tin-plated leads and a maximum peak reflow temperature of 260°C. Its DO-214AB package withstands standard Pb-free thermal profiles without delamination or parametric shift.
How does SMDJ10CAH differ from SMDJ10AH in practical circuit design?
SMDJ10AH is unidirectional with a cathode band marking and forward voltage drop (~3.5V), while SMDJ10CAH is bidirectional with no polarity marking and symmetrical clamping. In circuits with bidirectional signals (e.g., CAN, RS-485), SMDJ10CAH eliminates orientation errors and avoids forward conduction during negative transients.
What is the maximum allowable PCB trace length between SMDJ10CAH and protected IC inputs?
To maintain sub-17V clamping effectiveness, keep trace inductance below 10 nH - typically achieved with ≤5 mm direct routing and ground plane coupling. Longer traces add inductive kick, raising clamped voltage beyond the rated 17.0V VC, especially during fast 10/1000µs transients.
Does SMDJ10CAH require derating at elevated ambient temperatures?
Yes. At 85°C ambient, SMDJ10CAH's peak pulse power must be derated to ~1800W per Fig.2 in the datasheet. This is due to reduced thermal headroom - junction temperature must stay ≤175°C, and RθJA = 75°C/W dictates linear derating above 25°C.
SMDJ10CAH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AB, SMC
- Series:
- SMDJ
- 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):
- 176.5A
- Power - Peak Pulse:
- 3000W (3kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SMDJ10CAH FAQ
1.How can I place an order for SMDJ10CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for SMDJ10CAH 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 SMDJ10CAH reliable?
The price and inventory of SMDJ10CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMDJ10CAH is usually 5 days.
3.What payment methods are accepted for SMDJ10CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMDJ10CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMDJ10CAH?
SMDJ10CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMDJ10CAH 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 SMDJ10CAH?
For technical support, including SMDJ10CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMDJ10CAH requirements.
6.How does Aetrix verify that SMDJ10CAH is sourced from the original manufacturer or authorized distributors?
All SMDJ10CAH 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 SMDJ10CAH meets industry standards.
7.What is the process for return or replacement of SMDJ10CAH?
All SMDJ10CAH units undergo pre-shipment inspection (PSI). If there is an issue with SMDJ10CAH, 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 SMDJ10CAH part is unused and in its original packaging.
Return procedure for SMDJ10CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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