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Taiwan Semiconductor Corporation SMCJ13CAH
- Part No.:
- SMCJ13CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ13CAH.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,719
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Product details
Overview
SMCJ13CAH from Taiwan Semiconductor is a bidirectional 1500W 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 73A peak impulse current. It is AEC-Q101 qualified and meets ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive load-dump and ESD protection.
For engineers reviewing the SMCJ13CAH datasheet, SMCJ13CAH pinout, SMCJ13CAH application, or SMCJ13CAH equivalent, this device is selected for robust overvoltage immunity in automotive power lines, industrial I/O ports, and telecom DC feeds where fast response (<1.0 ps), low leakage (<1 µA @ 13V), and bidirectional clamping are required.
Technical Context
The SMCJ13CAH is a glass-passivated, single-die, bidirectional TVS diode designed for unidirectional or bidirectional transient suppression without polarity sensitivity. Its junction-to-case thermal resistance is 10°C/W, enabling effective heat dissipation during 1500W peak pulse events per the 10/1000µs waveform defined in Fig.5.
It operates across -55°C to +150°C junction temperature range and complies with JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1. The device supports automated placement and features matte tin-plated leads solderable per J-STD-002.
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 seen by protected circuit at 73 A peak impulse current (10/1000µs) |
| PPK | 1500 W - Peak pulse power handling capability under standardized surge conditions |
| IR @ VWM | <1 µA - Negligible leakage current at rated stand-off voltage, minimizing standby power loss |
| TJ max | +150 °C - Maximum allowable junction temperature, supporting under-hood automotive use |
| Package | DO-214AB (SMC) - Surface-mount outline with 7.11 mm x 6.22 mm footprint and 2.3 mm height |
Pinout & Package
DO-214AB (SMC) package: surface-mount, bidirectional, cathode band not applicable; terminals are symmetrical anode/cathode pair for AC-coupled or floating-line protection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Transient return path | Connects to protected line or ground reference; bidirectional symmetry allows either lead to serve as input or return |
| Cathode (Lead 2) | Transient return path | Electrically identical to Lead 1; no polarity marking required for CAH-series bidirectional operation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress per stress test plan |
| ISO 7637-2 compliance | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling) waveforms |
| Fast response time | <1.0 ps rise time from 0 V to VBR min ensures clamping before sensitive ICs experience overstress |
| Halogen-free & RoHS | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally compliant manufacturing |
| Moisture sensitivity level 1 | No floor life limitation or bake requirement prior to reflow, simplifying SMT assembly logistics |
Applications
| Automotive Power Distribution | Industrial PLC Digital I/O |
|---|---|
Use Scenario: Protection of 12V battery-fed ECUs against load dump (ISO 7637-2 Pulse 5a) and alternator-induced surges. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between power rail and chassis ground, absorbing up to 1500W transient energy. Use Value: Limits voltage excursion to ≤21.5V during 73A surge, preventing damage to downstream regulators and microcontrollers. | Use Scenario: Shielding 24V digital input modules from field-wiring induced transients in factory automation systems. IC Role / Device Role / Timing Role: Standoff protector on isolated input channels, operating continuously at 24V nominal with <1 µA leakage. Use Value: Maintains signal integrity during ESD events (IEC 61000-4-2 ±8 kV contact) while adding zero propagation delay. |
| Telecom DC Power Feeds | Consumer Equipment AC/DC Adapter Outputs |
Use Scenario: Safeguarding PoE-powered devices (e.g., IP cameras) from lightning-induced surges on 48V DC lines. IC Role / Device Role / Timing Role: Primary overvoltage clamp on secondary-side DC bus, coordinated with upstream fusing. Use Value: Clamps 10/1000µs surges to 21.5V before reaching Ethernet PHY or PMIC, meeting IEC 61000-4-5 Level 3. | Use Scenario: Secondary-side surge protection on 12V/19V outputs of laptop adapters exposed to mains-borne transients. IC Role / Device Role / Timing Role: Final-stage TVS placed immediately before connector, suppressing differential-mode spikes. Use Value: Withstands repetitive 1500W pulses without degradation, extending adapter lifetime in high-noise environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ13CA | 600W peak power rating, same VWM/VBR/VC but lower IPPM (43A vs 73A) | Not suitable for ISO 7637-2 Pulse 5a (load dump); limited to lower-energy transients | Select when board space constraints require SMB package and surge energy is ≤600W |
| 1.5KE13CA | Through-hole DO-201 package, 1500W rating, identical VWM/VBR/VC specs | Requires through-hole assembly; unsuitable for fully SMT production or high-vibration environments | Choose only for legacy through-hole designs or prototyping where reflow compatibility is not required |
Compared with SMBJ13CA and 1.5KE13CA, the SMCJ13CAH delivers identical clamping performance in a surface-mount AEC-Q101 qualified package optimized for automotive and industrial SMT lines, balancing higher surge capacity than SMBJ and superior manufacturability versus 1.5KE.
Availability
SMCJ13CAH is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC I/O protection, and telecom DC feed hardening requiring stable component supply and long-term lifecycle support.
Supply support for SMCJ13CAH 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 automotive, industrial, and consumer markets since 1979.
The SMCJ series is part of TSC's AEC-Q101-qualified TVS portfolio, engineered specifically for high-reliability transient suppression in harsh environments including under-hood automotive, factory automation, and outdoor telecom infrastructure.
FAQ
What does the 'CAH' suffix indicate in SMCJ13CAH?
The 'CAH' suffix in SMCJ13CAH denotes a bidirectional configuration ('C') with tightened breakdown voltage tolerance ('A' grade: VBR min/max = 14.4V/15.9V) and halogen-free construction ('H'). This distinguishes it from unidirectional 'H' variants and wider-tolerance 'H' versions, ensuring precise, symmetric clamping for AC-coupled or floating lines.
Is SMCJ13CAH suitable for ISO 7637-2 Pulse 5a (load dump) protection?
Yes, SMCJ13CAH is explicitly rated for ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b, and its 1500W peak power rating and 21.5V clamping voltage at 73A make it appropriate for Pulse 5a load dump suppression in 12V automotive systems when used with proper layout and upstream impedance.
What is the maximum clamping voltage of SMCJ13CAH and at what current is it specified?
The maximum clamping voltage of SMCJ13CAH is 21.5 V, measured at 73 A peak impulse current (IPPM) under the standardized 10/1000 µs double-exponential waveform per Fig.5 in the datasheet. This value defines the worst-case voltage imposed on protected circuitry during surge events.
Does SMCJ13CAH require derating at elevated ambient temperatures?
Yes, SMCJ13CAH must be derated above TA = 25°C per Fig.2 in the datasheet: its peak pulse power decreases linearly to ~750W at 75°C and ~300W at 125°C. Designers must apply thermal derating curves when operating in high-temperature enclosures or near heat sources.
How does SMCJ13CAH differ from SMCJ13AH?
SMCJ13AH is unidirectional ('H' suffix), while SMCJ13CAH is bidirectional ('C' prefix). Both share identical VWM (13V), VBR (14.4–15.9V), and VC (21.5V), but SMCJ13CAH has no cathode marking and clamps equally in both directions-critical for AC signal lines or floating rails where polarity is undefined.
SMCJ13CAH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AB, SMC
- Series:
- SMCJ
- 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):
- 73A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SMCJ13CAH FAQ
1.How can I place an order for SMCJ13CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ13CAH 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 SMCJ13CAH reliable?
The price and inventory of SMCJ13CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ13CAH is usually 5 days.
3.What payment methods are accepted for SMCJ13CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ13CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ13CAH?
SMCJ13CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ13CAH 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 SMCJ13CAH?
For technical support, including SMCJ13CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ13CAH requirements.
6.How does Aetrix verify that SMCJ13CAH is sourced from the original manufacturer or authorized distributors?
All SMCJ13CAH 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 SMCJ13CAH meets industry standards.
7.What is the process for return or replacement of SMCJ13CAH?
All SMCJ13CAH units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ13CAH, 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 SMCJ13CAH part is unused and in its original packaging.
Return procedure for SMCJ13CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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