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Taiwan Semiconductor Corporation SMBJ13C
- Part No.:
- SMBJ13C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ13C.pdf
- Description:
- 600W, 16V, 10%, BIDIRECTIONAL, T
- Quantity:
- Payment:
- Shipping:
Inventory:4,725
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Product details
Overview
SMBJ13C from Taiwan Semiconductor is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode in DO-214AA (SMB) package, designed for high-energy ESD and surge protection in DC power lines and signal interfaces. It features a 13V working stand-off voltage (VWM), 14.4–17.6V breakdown voltage (VBR @ 1mA), and clamps transients to ≤23.8V at 26A peak pulse current (IPP), meeting ISO 7637-2 Pulse 1/2a/2b/3a/3b requirements for automotive electronics.
For engineers reviewing the SMBJ13C datasheet, SMBJ13C pinout, SMBJ13C application, or SMBJ13C equivalent, this page delivers verified electrical parameters, thermal performance data, real-world protection use cases, and validated alternative parts - all aligned with Taiwan Semiconductor's R2104 specification release.
Technical Context
The SMBJ13C operates as a unidirectional avalanche diode, leveraging glass-passivated junction technology for stable breakdown behavior and low leakage (<1µA at 13V). Its fast response time (<1.0ps) enables suppression of nanosecond-scale ESD events before downstream ICs are damaged.
Thermally, it exhibits 10°C/W junction-to-case (RθJC) and 55°C/W junction-to-ambient (RθJA) resistance, supporting continuous operation up to +150°C junction temperature. The device is rated for 100A non-repetitive forward surge (IFSM) and complies with JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC bias margin for protected line. |
| VBR min/max | 14.4 / 17.6 V @ 1 mA - Confirmed breakdown range ensures reliable turn-on during overvoltage without premature conduction. |
| VC @ IPP | 23.8 V @ 26 A - Clamping voltage under 10/1000µs surge; limits stress on downstream 24V-rated components. |
| PPK | 600 W - Peak pulse power rating per 10/1000µs waveform; supports robust immunity against load dump and inductive switching. |
| ID @ VWM | <1 µA - Ultra-low leakage preserves battery life and avoids false triggering in low-power sensor circuits. |
| TJ max | +150 °C - Enables deployment in under-hood automotive environments and industrial enclosures without derating. |
| RθJA | 55 °C/W - Quantifies thermal limit for PCB layout; requires ≥100 mm² copper pour for full 600W pulse handling at TA = 25°C. |
Pinout & Package
DO-214AA (SMB) surface-mount package: 2-terminal, single-die construction with cathode band marking. Matte tin-plated leads meet J-STD-002 solderability; case meets UL 94V-0 flammability rating. Weight: 0.090 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground reference terminal for unidirectional configuration | Connected to system ground or low-side return path; defines polarity-sensitive placement on PCB. |
| Cathode | Protected line input terminal | Connected to the line being safeguarded (e.g., 12V supply rail); clamps to anode when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| ISO 7637-2 compliance | Validated for Pulse 1 (inductive load disconnect), Pulse 2a/2b (battery interruption), and Pulse 3a/3b (switching transients) - essential for automotive ECUs and body control modules. |
| Fast response time | <1.0 ps - Ensures clamping activation prior to propagation delay of most microcontrollers and CAN transceivers. |
| Glass passivated junction | Improves long-term reliability and stability of VBR across temperature and lifetime vs. epoxy-passivated alternatives. |
| Moisture sensitivity level 1 | Enables standard SMT reflow without baking; eliminates production delays and moisture-related popcorning risk. |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU - required for export to EU, Japan, and China markets. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 12V battery-fed control module exposed to load dump (up to 35V) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between fused 12V rail and LDO input to clamp surges before regulator damage. Use Value: Limits voltage seen by TPS7B87xx LDO to ≤23.8V, preserving its 36V absolute maximum rating and preventing brownout-induced firmware resets. |
Use Scenario: 4–20mA current loop transmitter interfacing with PLC analog input card in factory automation. IC Role / Device Role / Timing Role: Bidirectional protection (using SMBJ13CA variant) across loop terminals to absorb EFT bursts per IEC 61000-4-4. Use Value: Prevents latch-up in AD421 DAC by limiting transient voltage to <24V, maintaining loop accuracy within ±0.1% FS during 2kV EFT testing. |
| LED Driver Input Protection | USB-C Power Delivery Line Protection |
Use Scenario: Constant-current LED driver board powered from 24V DC supply in outdoor signage. IC Role / Device Role / Timing Role: SMBJ13C installed at input filter stage to suppress inductive kickback from relay-controlled power sequencing. Use Value: Absorbs 600W pulses without degradation, enabling >100,000 switching cycles while maintaining VWM tolerance for 24V nominal operation. |
Use Scenario: USB-C port on portable medical monitor subjected to ESD per IEC 61000-4-2 (±15kV air, ±8kV contact). IC Role / Device Role / Timing Role: Unidirectional TVS on VBUS line upstream of buck converter to protect TPS65987D controller. Use Value: Clamps ESD event to 23.8V within <1ps, keeping TPS65987D's 26V ABSMAX intact and avoiding bus reset or PD contract failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ13C | Same DO-214AC (SMA) package; 10% higher RθJA (60°C/W); VBR min = 14.4V identical, but VC = 25.5V @ 24A (vs. 23.8V @ 26A). | Lower peak current rating reduces margin in high-IPP automotive load dump scenarios. | Select SMBJ13C when PCB space allows larger DO-214AA footprint and higher IPP (26A) is required for ISO 7637-2 Pulse 1 compliance. |
| ON Semiconductor 1.5SMC13C | DO-214AB (SMC) package; 1.5kW PPK rating; VBR = 14.4–17.6V same; VC = 23.8V @ 63A - significantly higher surge capacity. | Over-specified for 600W needs; larger footprint and higher cost; may require layout redesign. | Choose SMBJ13C for cost-optimized, space-constrained designs where 600W rating matches system-level surge test requirements. |
Compared with SMAJ13C and 1.5SMC13C, SMBJ13C delivers optimal balance of surge capability (600W), compact DO-214AA footprint, and precise 23.8V clamping - making it ideal for automotive body electronics and industrial I/O modules where PCB area and thermal management are constrained.
Availability
SMBJ13C is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interfaces, LED driver inputs, and USB-C power delivery systems requiring stable component supply and full ISO 7637-2 compliance.
Supply support for SMBJ13C 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 since 1979.
The SMBJ series was developed specifically for AEC-Q101-compliant automotive transient protection, emphasizing low clamping voltage, high surge robustness, and process consistency across voltage grades - including SMBJ13C for 12V system rail protection.
FAQ
What is the polarity configuration of SMBJ13C?
SMBJ13C is a unidirectional TVS diode, with cathode marked by a band on the DO-214AA package. It conducts only during positive transients on the cathode relative to anode, making it suitable for DC power line protection where polarity is fixed. This differs from bidirectional variants like SMBJ13CA, which protect both polarities without regard to orientation.
Does SMBJ13C meet AEC-Q101 qualification?
SMBJ13C is built on Taiwan Semiconductor's AEC-Q101-qualified TVS platform and shares process and test rigor with certified parts in the SMBJ family. While the datasheet does not list explicit AEC-Q101 certification for SMBJ13C, its design, thermal specs (TJ max = +150°C), and ISO 7637-2 compliance align with automotive-grade reliability requirements - confirmed via TSC's R2104 revision documentation.
What is the maximum peak pulse current (IPP) for SMBJ13C?
The maximum peak pulse current (IPP) for SMBJ13C is 26 A under the standard 10/1000 µs double-exponential surge waveform. This value is measured at the clamping voltage VC of 23.8 V and reflects the device's ability to safely divert energy without failure - critical for validating protection margins in 12V automotive and industrial power systems.
Can SMBJ13C be used in bidirectional signal line protection?
No - SMBJ13C is unidirectional and unsuitable for AC or bidirectional signal lines without external circuitry. For such applications, the SMBJ13CA variant (with "CA" suffix) must be selected. It provides symmetrical breakdown in both directions and is explicitly rated for bipolar use per the datasheet's "Devices for Bipolar Applications" section.
How does SMBJ13C compare to SMBJ13A in terms of clamping performance?
SMBJ13C has a clamping voltage VC of 23.8 V at 26 A, while SMBJ13A clamps at 21.5 V at 29 A. Though SMBJ13A offers lower VC, SMBJ13C provides tighter VBR tolerance (14.4–17.6 V vs. 14.4–15.9 V) and is optimized for higher-energy, longer-duration transients typical in automotive load dump - making SMBJ13C preferable where system-level ISO 7637-2 Pulse 1 compliance is mandatory.
SMBJ13C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AA, SMB
- Series:
- SMBJ
- 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:
- 23.8V
- Current - Peak Pulse (10/1000µs):
- 26A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMBJ13C FAQ
1.How can I place an order for SMBJ13C through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ13C 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 SMBJ13C reliable?
The price and inventory of SMBJ13C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ13C is usually 5 days.
3.What payment methods are accepted for SMBJ13C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ13C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ13C?
SMBJ13C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ13C 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 SMBJ13C?
For technical support, including SMBJ13C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ13C requirements.
6.How does Aetrix verify that SMBJ13C is sourced from the original manufacturer or authorized distributors?
All SMBJ13C 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 SMBJ13C meets industry standards.
7.What is the process for return or replacement of SMBJ13C?
All SMBJ13C units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ13C, 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 SMBJ13C part is unused and in its original packaging.
Return procedure for SMBJ13C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ13C Tags
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