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Taiwan Semiconductor Corporation SMDJ10CA
- Part No.:
- SMDJ10CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMDJ10CA.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,768
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Product details
Overview
SMDJ10CA from Taiwan Semiconductor is a bidirectional 10V standoff transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, rated for 3000W peak pulse power, 11.1–12.3V breakdown voltage at 1mA, and 17.0V clamping voltage at 176.5A peak current. It protects telecom interfaces, industrial I/O ports, and automotive ECUs against ESD, lightning-induced surges, and load-switch transients.
For engineers reviewing the SMDJ10CA datasheet, SMDJ10CA pinout, SMDJ10CA application, or SMDJ10CA equivalent, key selection criteria include bidirectional clamping capability, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, sub-1ps response time, 175°C junction rating, and DO-214AB mechanical compatibility with high-power PCB layouts.
Technical Context
The SMDJ10CA operates as a silicon avalanche diode with glass-passivated junction, delivering symmetrical clamping in both polarities due to its CA (bidirectional) suffix. Its electrical behavior is defined by VWM = 10V, VBR = 11.1–12.3V (min/max at IT = 1mA), and VC = 17.0V at IPPM = 176.5A under 10/1000μs waveform.
Thermal performance is characterized by RθJA = 75°C/W and RθJL = 15°C/W, enabling sustained operation up to TJ = 175°C. It meets J-STD-020 moisture sensitivity level 1 and JESD 201 Class 2 whisker resistance, supporting lead-free reflow assembly without derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse working voltage before clamping begins |
| VBR @ IT=1mA | 11.1–12.3 V - Breakdown voltage range confirming bidirectional avalanche onset tolerance |
| VC @ IPPM | 17.0 V - Clamping voltage at 176.5 A peak pulse, defining protected circuit's maximum transient overvoltage |
| PPK | 3000 W - Peak pulse power handling per 1ms 10/1000μs waveform, critical for surge immunity design |
| IPPM | 176.5 A - Maximum non-repetitive peak pulse current the device safely clamps without failure |
| TJ max | +175 °C - Maximum junction temperature enabling use in under-hood or high-ambient industrial environments |
| Response time | <1.0 ps - Sub-picosecond junction response ensures protection before sensitive ICs experience overstress |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, bidirectional configuration with cathode band omitted (no polarity marking required).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional avalanche junction terminals | No functional distinction between terminals; either side accepts reverse or forward surge energy equally |
| Case (cathode band absent) | Thermal and mechanical interface | DO-214AB body provides low-inductance path and 0.290g mass for thermal inertia during pulse events |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under repeated surge stress |
| ISO 7637-2 compliance (Pulse 1/2a/2b/3a/3b) | Validated for automotive power line transient immunity without external filtering |
| Moisture sensitivity level 1 | Enables standard SMT reflow without baking or dry-pack requirements |
| UL 94V-0 molding compound | Meets flammability safety standards for enclosed industrial and telecom enclosures |
| Matte tin-plated leads | Guarantees solderability per J-STD-002 and eliminates whisker risk per JESD 201 Class 2 |
Applications
| Automotive Power Line Protection | Industrial PLC Digital I/O |
|---|---|
Use Scenario: Protecting CAN/LIN bus nodes and microcontroller power rails from battery dump and load-dump transients in 12V vehicle systems. IC Role / Device Role / Timing Role: Bidirectional clamping TVS placed across VCC–GND near ECU input stage. Use Value: Limits transient overvoltage to ≤17.0V during ISO 7637-2 Pulse 2b (load dump), preventing latch-up or gate oxide damage in downstream logic. | Use Scenario: Shielding 24V digital input modules in programmable logic controllers from field-wiring induced surges and ESD. IC Role / Device Role / Timing Role: Primary surge suppression element on channel-level inputs before optocoupler or Schmitt trigger. Use Value: Absorbs 3000W pulses without degradation, maintaining signal integrity while meeting IEC 61000-4-5 Level 3 (2kV) immunity. |
| Telecom Ethernet Port Protection | Consumer Appliance Motor Drive Inputs |
Use Scenario: Safeguarding PoE-powered Ethernet PHY interfaces against lightning-induced common-mode surges on twisted-pair lines. IC Role / Device Role / Timing Role: Common-mode TVS pair (e.g., two SMDJ10CA) bridging differential pairs to chassis ground. Use Value: Symmetrical 10V standoff enables balanced clamping without DC bias shift, preserving Ethernet signal integrity up to 100MHz. | Use Scenario: Suppressing back-EMF spikes from brushed DC motors in smart home appliances (e.g., washing machine control boards). IC Role / Device Role / Timing Role: Across motor coil terminals or H-bridge supply rails to clamp inductive kickback. Use Value: Withstands 300A IFSM surge and clamps to 17.0V, preventing MOSFET drain-source avalanche failure during commutation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC10CA (Littelfuse) | Same DO-214AB package, identical 10V VWM, but VC = 17.5V at 175A; slightly higher clamping voltage | Validated for UL 497B telecom surge standards; less common in automotive OEM BOMs | Select when UL 497B compliance is mandatory and 0.5V higher clamping is acceptable |
| 1.5KE10CA (ON Semiconductor) | Through-hole DO-15 package; same electrical specs but incompatible mounting; PPK = 1500W (half the rating) | Used in legacy industrial power supplies where board space allows axial leads and lower surge margin suffices | Choose only for through-hole redesigns where 3000W rating is not required and layout cannot accommodate SMC footprint |
Compared with SAC10CA and 1.5KE10CA, the SMDJ10CA delivers superior surge robustness (3000W vs. 1500W) and surface-mount compatibility, making it optimal for high-density automotive and industrial PCBs requiring ISO 7637-2 immunity without layout compromise.
Availability
SMDJ10CA is available at Aetrix Electronics and suitable for automotive ECU protection, industrial PLC I/O hardening, and telecom Ethernet port surge suppression requiring stable component supply across multi-year production cycles.
Supply support for SMDJ10CA 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 MOSFETs since 1979.
The SMDJ series was engineered specifically for high-energy transient suppression in automotive and industrial environments, emphasizing rugged packaging, ISO 7637-2 compliance, and extended temperature operation up to +175°C.
FAQ
What does the 'CA' suffix indicate in SMDJ10CA?
The 'CA' suffix in SMDJ10CA denotes bidirectional configuration - meaning the device provides symmetrical clamping in both forward and reverse directions. Unlike unidirectional variants (e.g., SMDJ10A), SMDJ10CA has no cathode marking and functions identically regardless of terminal orientation, making it ideal for AC-coupled or floating signal line protection where polarity is undefined.
Is SMDJ10CA compliant with automotive transient standards?
Yes, SMDJ10CA meets ISO 7637-2 requirements for Pulses 1, 2a, 2b, 3a, and 3b, covering typical vehicle electrical disturbances including load dump, battery reversal, and alternator ripple. Its 3000W peak power rating and 175°C junction rating align with AEC-Q200 stress test expectations, though formal qualification requires system-level validation per OEM specifications.
What is the maximum clamping voltage of SMDJ10CA under surge conditions?
The maximum clamping voltage of SMDJ10CA is 17.0 V at IPPM = 176.5 A under the standardized 10/1000 μs double-exponential surge waveform. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during worst-case transient events.
Can SMDJ10CA be used in place of a unidirectional TVS like SMDJ10A?
No - SMDJ10CA is not a drop-in replacement for SMDJ10A. While both share the same VWM and package, SMDJ10A is unidirectional (cathode-marked) and intended for DC-biased applications like power rail protection. Using SMDJ10CA there introduces unnecessary bidirectional leakage and may compromise DC blocking integrity; always match configuration suffix to circuit topology.
What is the thermal resistance from junction to ambient for SMDJ10CA?
The junction-to-ambient thermal resistance (RθJA) of SMDJ10CA is 75°C/W under standard JEDEC test conditions (single device on 1-inch² copper pad). This value assumes minimal PCB copper area; actual thermal performance improves significantly with enhanced heatsinking - e.g., doubling copper area reduces RθJA by ~20%, critical for sustained surge duty cycles.
SMDJ10CA 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SMDJ10CA FAQ
1.How can I place an order for SMDJ10CA through Aetrix?
Please submit a Request for Quotation (RFQ) for SMDJ10CA 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 SMDJ10CA reliable?
The price and inventory of SMDJ10CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMDJ10CA is usually 5 days.
3.What payment methods are accepted for SMDJ10CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMDJ10CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMDJ10CA?
SMDJ10CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMDJ10CA 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 SMDJ10CA?
For technical support, including SMDJ10CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMDJ10CA requirements.
6.How does Aetrix verify that SMDJ10CA is sourced from the original manufacturer or authorized distributors?
All SMDJ10CA 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 SMDJ10CA meets industry standards.
7.What is the process for return or replacement of SMDJ10CA?
All SMDJ10CA units undergo pre-shipment inspection (PSI). If there is an issue with SMDJ10CA, 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 SMDJ10CA part is unused and in its original packaging.
Return procedure for SMDJ10CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMDJ10CA Tags
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