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Taiwan Semiconductor Corporation SMDJ13CA
- Part No.:
- SMDJ13CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMDJ13CA.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,529
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Product details
Overview
SMDJ13CA from Taiwan Semiconductor is a bidirectional 3000W surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, with 13V working stand-off voltage (VWM), 14.4–15.9V breakdown voltage (VBR), and 21.5V clamping voltage (VC) at 139.5A peak pulse current. It protects telecom and industrial circuits against ESD, lightning-induced surges, and load-switch transients.
For engineers reviewing the SMDJ13CA datasheet, SMDJ13CA pinout, SMDJ13CA application, or SMDJ13CA equivalent, key selection criteria include bidirectional clamping performance, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, 1.0ps response time, and DO-214AB thermal resistance (RθJA = 75°C/W).
Technical Context
The SMDJ13CA uses a glass-passivated silicon junction to achieve fast transient suppression with sub-1.0ps response and low clamping ratio (VC/VBR ≈ 1.35). Its bidirectional configuration enables symmetrical protection without polarity sensitivity, supporting both positive and negative surge events across the same terminals.
Designed for automotive-grade immunity per ISO 7637-2, it sustains 3000W peak pulse power (tp = 1ms) and operates over –55°C to +175°C junction temperature range. Thermal performance is defined by RθJA = 75°C/W and RθJL = 15°C/W, enabling reliable operation under high ambient conditions when mounted on standard PCB copper areas.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 14.4 V / 15.9 V - Breakdown occurs within this range at 1 mA test current, defining turn-on threshold |
| VC @ IPPM | 21.5 V - Clamped voltage across device at 139.5 A peak pulse, limiting downstream stress |
| PPK | 3000 W - Peak pulse power handling capability for 1 ms waveform, critical for surge survivability |
| TJ max | +175 °C - Maximum junction temperature, enabling use in under-hood or high-power industrial environments |
| RθJA | 75 °C/W - Junction-to-ambient thermal resistance, guiding minimum PCB copper area requirements |
| Response time | <1.0 ps - Enables effective suppression of nanosecond-scale ESD and fast transients |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, bidirectional, cathode band not applicable (symmetrical construction). Weight: 0.290 g. Molding compound meets UL 94V-0; matte tin-plated leads compliant with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (bidirectional) | Surge current path | Both terminals function identically; no polarity marking required for bidirectional operation |
| Case (cathode band absent) | Thermal and mechanical interface | DO-214AB body provides primary heat dissipation path to PCB copper; no internal ground connection |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR over lifetime and improved reliability vs. epoxy-passivated alternatives |
| ISO 7637-2 compliance | Validated for automotive load-dump and switching transient immunity (Pulse 1/2a/2b/3a/3b) |
| Moisture sensitivity level 1 | Eliminates bake requirement prior to reflow; compatible with standard SMT assembly processes |
| RoHS & halogen-free | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing |
| Fast response & low clamping ratio | Sub-1.0ps turn-on and VC/VBR ≈ 1.35 minimize protected IC voltage overshoot during transients |
Applications
| Telecom Line Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting RS-485/RS-232 data lines in base stations and network switches from induced lightning surges and ESD. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential pair to clamp common-mode transients before they reach transceiver inputs. Use Value: 21.5V clamping ensures transceivers rated for ±15V common-mode range remain within safe operating limits during 1kV/1.2×50μs surges. | Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to inductive load switching noise. IC Role / Device Role / Timing Role: Parallel-connected TVS on each 24V DC input channel to absorb energy from relay coil flyback and contact arcing. Use Value: 3000W peak power rating handles repetitive 100A surge events without degradation, extending field service life. |
| Automotive Body Control Module | Consumer Power Adapter Input Stage |
Use Scenario: Protecting LIN bus and sensor supply lines in BCMs against battery line transients per ISO 7637-2 Pulse 1 and 2b. IC Role / Device Role / Timing Role: Bidirectional clamping device installed between VBAT and GND near microcontroller power pins. Use Value: 13V VWM allows compatibility with 12V nominal systems while maintaining margin above ripple; 175°C TJ max supports under-dash mounting. | Use Scenario: Input-stage surge protection for AC-DC adapters used in smart home hubs and IoT gateways. IC Role / Device Role / Timing Role: Primary TVS on secondary-side DC output (e.g., 12V rail) to prevent overvoltage damage during adapter fault conditions. Use Value: DO-214AB footprint enables compact layout; 75°C/W RθJA supports convection-cooled designs without heatsinks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC13 | Lower PPK (1500W), higher VC (24.4V), same DO-214AB package | Less robust for severe automotive load dump; suitable for consumer-grade surge levels only | Select SAC13 only if system-level testing confirms 1500W surge immunity is sufficient |
| SMLJ13CA | Same VWM/VBR/VC specs, but lower PPK (1500W) and higher RθJA (100°C/W) | Reduced thermal margin in high-ambient environments; requires larger copper pour for equivalent cooling | Prefer SMLJ13CA only when footprint compatibility is mandatory and power derating is acceptable |
Compared with SMDJ13CA, SAC13 and SMLJ13CA offer identical voltage ratings but trade peak power (3000W → 1500W) and thermal performance (RθJA 75°C/W → 100°C/W), making them viable only where full 3000W surge capability is not required.
Availability
SMDJ13CA is available at Aetrix Electronics and suitable for telecom line protection, industrial PLC I/O protection, and automotive body control module designs requiring stable component supply and long-term lifecycle support.
Supply support for SMDJ13CA 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, MOSFETs, and power management devices.
The SMDJ series was developed specifically for high-energy transient suppression in automotive, industrial, and telecom infrastructure, emphasizing ruggedness, AEC-Q200 readiness, and ISO 7637-2 compliance.
FAQ
What is the maximum clamping voltage of the SMDJ13CA under specified test conditions?
The SMDJ13CA exhibits a maximum clamping voltage (VC) of 21.5 V when subjected to its rated peak pulse current (IPPM) of 139.5 A, measured using the 10/1000 μs waveform per IEC 61000-4-5. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during surge events.
Is the SMDJ13CA unidirectional or bidirectional, and how does that affect PCB layout?
The SMDJ13CA is a bidirectional TVS diode, indicated by the "CA" suffix, meaning it clamps symmetrically for both positive and negative transients without polarity sensitivity. No cathode band marking is present, and PCB layout requires no orientation alignment-either terminal may connect to signal or return, simplifying routing and reducing assembly errors.
Does the SMDJ13CA meet automotive transient immunity standards?
Yes, the SMDJ13CA meets ISO 7637-2 requirements for Pulse 1, 2a, 2b, 3a, and 3b, making it suitable for 12V automotive applications including body control modules and infotainment interfaces. Its 3000W peak power rating and 175°C maximum junction temperature further support under-hood deployment where thermal and electrical stress are elevated.
What is the moisture sensitivity level (MSL) of the SMDJ13CA, and what does it mean for manufacturing?
The SMDJ13CA has a moisture sensitivity level (MSL) of 1 per J-STD-020, meaning it is not sensitive to moisture absorption during storage or handling. This eliminates the need for baking prior to reflow soldering and allows indefinite floor life under standard factory conditions, streamlining SMT assembly and reducing process risk.
How does the thermal resistance of the SMDJ13CA impact PCB design?
The SMDJ13CA has a junction-to-ambient thermal resistance (RθJA) of 75°C/W, which directly determines required PCB copper area for thermal management. To maintain TJ ≤ 175°C at full 3000W pulse, designers must provide adequate copper pour-typically ≥ 250 mm² per pad-and consider airflow or board stack-up to avoid exceeding thermal limits during repetitive surge events.
SMDJ13CA 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):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 21.5V
- Current - Peak Pulse (10/1000µs):
- 139.5A
- 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)
SMDJ13CA FAQ
1.How can I place an order for SMDJ13CA through Aetrix?
Please submit a Request for Quotation (RFQ) for SMDJ13CA 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 SMDJ13CA reliable?
The price and inventory of SMDJ13CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMDJ13CA is usually 5 days.
3.What payment methods are accepted for SMDJ13CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMDJ13CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMDJ13CA?
SMDJ13CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMDJ13CA 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 SMDJ13CA?
For technical support, including SMDJ13CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMDJ13CA requirements.
6.How does Aetrix verify that SMDJ13CA is sourced from the original manufacturer or authorized distributors?
All SMDJ13CA 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 SMDJ13CA meets industry standards.
7.What is the process for return or replacement of SMDJ13CA?
All SMDJ13CA units undergo pre-shipment inspection (PSI). If there is an issue with SMDJ13CA, 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 SMDJ13CA part is unused and in its original packaging.
Return procedure for SMDJ13CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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