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Taiwan Semiconductor Corporation SMDJ13CAH
- Part No.:
- SMDJ13CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMDJ13CAH.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,091
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Product details
Overview
SMDJ13CAH 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 maximum clamping voltage (VC) at 139.5A peak pulse current - designed for ESD and surge protection in automotive power line interfaces.
For engineers reviewing the SMDJ13CAH datasheet, SMDJ13CAH pinout, SMDJ13CAH application, or SMDJ13CAH equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, <1.0ps response time, and DO-214AB thermal performance (RθJA = 75°C/W).
Technical Context
The SMDJ13CAH implements a glass-passivated silicon junction optimized for fast transient suppression in bidirectional configurations, supporting both positive and negative polarity surges without external polarity management. Its clamping behavior is defined across 10/1000μs waveform per R.E.A., with guaranteed VC ≤ 21.5V at IPPM = 139.5A.
Thermally, it sustains 175°C junction temperature and delivers 6.5W steady-state power dissipation at 25°C ambient, leveraging DO-214AB's low RθJL (15°C/W) to manage energy absorption during repetitive transients in automotive ECUs and industrial I/O modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 14.4 V / 15.9 V - Breakdown occurs within this range at 1 mA test current, ensuring predictable turn-on threshold |
| VC @ IPPM | 21.5 V - Clamped voltage seen by protected circuit at 139.5 A peak pulse, limiting downstream stress |
| PPK | 3000 W - Peak pulse power handling per 1 ms non-repetitive surge, enabling robust load-dump immunity |
| TJ max | +175 °C - Maximum junction temperature rating supports under-hood automotive deployment |
| RθJA | 75 °C/W - Thermal resistance from junction to ambient defines PCB copper area requirements for thermal management |
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) | Transient current path (bidirectional) | Either terminal accepts surge polarity; no DC bias dependency - simplifies layout in AC-coupled or floating lines |
| Case (cathode band absent) | Thermal and mechanical interface | DO-214AB body provides primary heat conduction path to PCB copper; no internal ground reference |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD22 |
| ISO 7637-2 compliant | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling) waveforms |
| Fast response time | <1.0 ps - Enables suppression before sensitive ICs experience overvoltage damage |
| Moisture sensitivity level 1 | No baking required prior to reflow; compatible with standard SMT assembly processes per J-STD-020 |
| Halogen-free & RoHS | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing |
Applications
| Automotive Body Control Module (BCM) | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting LIN and CAN signal lines against battery load dump and alternator ripple in vehicle door modules and seat controllers. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed directly at connector entry point to shunt transients before reaching transceiver ICs. Use Value: Maintains signal integrity under ISO 7637-2 Pulse 5a (load dump up to 110 V) while holding clamped voltage below transceiver absolute maximum ratings. | Use Scenario: Safeguarding RS-485/CAN FD physical layer transceivers in factory automation gateways exposed to motor drive noise and relay switching. IC Role / Device Role / Timing Role: Primary surge suppression device on differential bus lines, operating symmetrically across both A and B conductors. Use Value: Limits common-mode and differential-mode transients to ≤21.5 V, preventing latch-up or permanent damage to isolated transceivers such as ISO1050 or SN65HVD230. |
| Telecom Power Supply Input | Consumer USB-C Port Protection |
Use Scenario: Front-end protection of 12 V/24 V telecom power supplies against lightning-induced surges on AC/DC input stages. IC Role / Device Role / Timing Role: First-line transient absorber placed after input fuse and before bulk capacitor and controller IC. Use Value: Absorbs 3000 W pulses without degradation, preserving upstream rectifier and downstream PWM controller under IEC 61000-4-5 Level 4 stress. | Use Scenario: Secondary-level surge protection for USB-C CC and VBUS lines in portable docking stations subjected to ESD and hot-plug transients. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp integrated near connector to complement primary ESD arrays. Use Value: Delivers 21.5 V clamping at 139.5 A while maintaining sub-100 pF junction capacitance - avoiding signal integrity loss on 10 Gbps USB3.2 Gen2x2 lanes. |
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 (1500 W), higher VC (24.4 V), same DO-214AB package | Not AEC-Q101 qualified; limited to commercial-grade industrial use | Select when cost sensitivity outweighs automotive qualification and 3000 W surge margin |
| SMCJ13CA | Identical electrical specs but not AEC-Q101 qualified; same DO-214AB footprint | Lacks ISO 7637-2 validation; requires additional system-level testing for automotive deployment | Choose for non-automotive designs where full AEC-Q101 traceability is unnecessary |
Compared with SAC13 and SMCJ13CA, the SMDJ13CAH provides verified automotive qualification, tighter VBR tolerance (14.4–15.9 V vs. ±5%), and guaranteed 3000 W pulse handling - making it the preferred choice for safety-critical vehicle subsystems requiring zero requalification effort.
Availability
SMDJ13CAH is available at Aetrix Electronics and suitable for automotive body electronics, industrial fieldbus interfaces, telecom power inputs, and consumer USB-C port protection requiring stable component supply and long-term lifecycle support.
Supply support for SMDJ13CAH 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 high-reliability protection devices and power management components.
The SMDJ series is engineered specifically for automotive and industrial transient suppression, emphasizing AEC-Q101 compliance, ISO 7637-2 immunity, and robust thermal performance in surface-mount packages.
FAQ
What is the clamping voltage of SMDJ13CAH at its rated peak pulse current?
The SMDJ13CAH has a maximum clamping voltage (VC) of 21.5 V when subjected to its rated peak pulse current (IPPM) of 139.5 A under the 10/1000 μs waveform. This value is measured per JEDEC standards and ensures protected circuits remain below critical overvoltage thresholds during surge events. The SMDJ13CAH maintains this clamping performance across its full operating temperature range of –55°C to +175°C.
Is SMDJ13CAH suitable for automotive applications?
Yes, the SMDJ13CAH is AEC-Q101 qualified and meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b requirements - making it suitable for automotive power line and data line protection. It is commonly deployed in body control modules, infotainment head units, and ADAS sensor interfaces. The SMDJ13CAH's glass-passivated junction and moisture sensitivity level 1 rating further support automated SMT assembly in Tier-1 automotive manufacturing environments.
How does the bidirectional configuration of SMDJ13CAH affect PCB layout?
The SMDJ13CAH is inherently bidirectional, meaning either terminal functions identically under positive or negative transients - eliminating need for polarity-aware placement or orientation checks during layout. Unlike unidirectional TVS diodes, the SMDJ13CAH has no cathode band marking and can be mounted in either direction across differential or floating lines. This simplifies routing in CAN, LIN, or Ethernet PHY protection schemes where symmetry improves EMI resilience.
What is the thermal resistance of SMDJ13CAH, and how does it impact heatsinking?
The SMDJ13CAH has a junction-to-ambient thermal resistance (RθJA) of 75°C/W and junction-to-lead resistance (RθJL) of 15°C/W in standard DO-214AB mounting conditions. These values assume minimum recommended pad layout per TSC datasheet. For sustained surge duty cycles, increasing copper area on both terminals reduces effective RθJA - e.g., 100 mm² total copper lowers RθJA to ~45°C/W. The SMDJ13CAH does not require external heatsinks but benefits from thermal vias under the leads.
Does SMDJ13CAH meet halogen-free and RoHS requirements?
Yes, the SMDJ13CAH is halogen-free per IEC 61249-2-21 and fully RoHS compliant per EU Directive 2011/65/EU. Its molding compound contains no brominated flame retardants, chlorine, or fluorine above threshold limits, and all terminations use matte tin plating per J-STD-002 solderability standards. These certifications are documented in TSC's material declarations and apply to all production lots of SMDJ13CAH.
SMDJ13CAH 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SMDJ13CAH FAQ
1.How can I place an order for SMDJ13CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for SMDJ13CAH 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 SMDJ13CAH reliable?
The price and inventory of SMDJ13CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMDJ13CAH is usually 5 days.
3.What payment methods are accepted for SMDJ13CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMDJ13CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMDJ13CAH?
SMDJ13CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMDJ13CAH 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 SMDJ13CAH?
For technical support, including SMDJ13CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMDJ13CAH requirements.
6.How does Aetrix verify that SMDJ13CAH is sourced from the original manufacturer or authorized distributors?
All SMDJ13CAH 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 SMDJ13CAH meets industry standards.
7.What is the process for return or replacement of SMDJ13CAH?
All SMDJ13CAH units undergo pre-shipment inspection (PSI). If there is an issue with SMDJ13CAH, 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 SMDJ13CAH part is unused and in its original packaging.
Return procedure for SMDJ13CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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