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HomeProductsCircuit ProtectionTVS - DiodesSMCJ13CA-E3/57T
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SMCJ13CA-E3/57T - Vishay General Semiconductor - Diodes Division

Manufacturer Part Number
SMCJ13CA-E3/57T
Manufacturer
Vishay General Semiconductor – Diodes Division
Allelco Part Number
32D-SMCJ13CA-E3/57T
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
70,860 pcs available, New & Original
Parts Description
TVS DIODE 13VWM 21.5VC DO214AB
Package
DO-214AB (SMCJ)
Data sheet
SMCJ13CA-E3/57T.pdf

PCN Assembly/Origin

Multiple Parts 30/Mar/2022.pdf
RoHs Status
ROHS3 Compliant
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In stock: 70860

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Specifications

SMCJ13CA-E3/57T Tech Specifications
Vishay General Semiconductor - Diodes Division - SMCJ13CA-E3/57T technical specifications, attributes, parameters and parts with similar specifications to Vishay General Semiconductor - Diodes Division - SMCJ13CA-E3/57T

Product Attribute Attribute Value
Manufacturer Vishay General Semiconductor – Diodes Division
Voltage - Reverse Standoff (Typ) 13V
Voltage - Clamping (Max) @ Ipp 21.5V
Voltage - Breakdown (Min) 14.4V
Type Zener
Supplier Device Package DO-214AB (SMCJ)
Series TransZorb®
Power Line Protection No
Power - Peak Pulse 1500W (1.5kW)
Product Attribute Attribute Value
Package / Case DO-214AB, SMC
Package Tape & Reel (TR)
Operating Temperature -55°C ~ 150°C (TJ)
Mounting Type Surface Mount
Current - Peak Pulse (10/1000µs) 69.8A
Capacitance @ Frequency -
Bidirectional Channels 1
Base Product Number SMCJ13
Applications General Purpose

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8541.10.0080

Frequently Asked Questions(FAQ)

How does the SMCJ13CA-E3/57T perform under transient events compared to standard Zener diodes in terms of energy absorption and response time?
The SMCJ13CA-E3/57T is specifically engineered as a Transient Voltage Suppressor (TVS) diode, not a conventional Zener, which enables it to absorb significantly higher peak pulse power—up to 1.5 kW for an 8/20µs waveform—compared to typical Zener diodes limited by lower surge ratings. Its bidirectional channel design allows it to clamp both positive and negative transients symmetrically, with a fast response time on the order of picoseconds. This makes it far more effective at suppressing voltage spikes from ESD, inductive load switching, or lightning surges than a general-purpose Zener, which may degrade or fail under similar conditions.
In what scenarios would the SMCJ13CA-E3/57T be preferred over the SMCJ15CA-E3/57T when designing a protection circuit for a 13V digital signal line?
The SMCJ13CA-E3/57T offers a reverse standoff voltage of 13V, making it ideal for protecting systems operating near that threshold without risking false triggering during normal operation. In contrast, the SMCJ15CA-E3/57T has a higher standoff voltage (15V), which could leave insufficient margin before reaching breakdown if the nominal system voltage approaches 13V. For a 13V logic rail, using the 15V version might allow transient excursions to exceed safe limits before clamping activates. Therefore, the SMCJ13CA-E3/57T provides tighter protection with better utilization of its clamping capability at 21.5V, ensuring earlier intervention during overvoltage events.
What are the thermal implications of operating the SMCJ13CA-E3/57T continuously at elevated ambient temperatures, and how should PCB layout influence heat dissipation?
While the SMCJ13CA-E3/57T can operate up to 150°C junction temperature, continuous exposure to high ambient temperatures reduces its reliability and effective power handling. During repetitive transient events, even moderate currents can cause localized heating due to package resistance. Proper thermal management includes placing the SMCJ13CA-E3/57T close to the protected node, minimizing trace inductance, and avoiding routing power traces underneath the device. A ground plane adjacent to the SMCJ13CA-E3/57T can help conduct heat away, though it must not short the leads. Thermal vias under the package improve performance but require careful isolation from sensitive circuits.
Can the SMCJ13CA-E3/57T safely handle multiple simultaneous transient pulses without degradation, and what factors determine its endurance in such conditions?
Yes, the SMCJ13CA-E3/57T is designed for repeated transient protection, but its longevity depends on pulse characteristics. With each pulse dissipating energy proportional to Ipp² × Vclamp, multiple pulses at full 69.8A current can quickly deplete its thermal capacity. In industrial environments with frequent surges, derating by 30–50% is recommended. Factors like pulse width, duty cycle, ambient cooling, and mounting method all affect cumulative stress. Monitoring for discoloration or solder joint fatigue after field deployment is advisable for critical applications.
How does the capacitance behavior of the SMCJ13CA-E3/57T impact high-speed data lines, and is it suitable for Gigabit Ethernet or USB 2.0 protection?
The SMCJ13CA-E3/57T exhibits low junction capacitance, typically below 100pF depending on bias, which helps minimize signal distortion on moderate-speed interfaces. However, on high-speed lines like USB 3.0 or PCIe Gen4, even this capacitance can introduce insertion loss or timing skew. For Gigabit Ethernet (which uses differential signaling with tight rise/fall times), the SMCJ13CA-E3/57T may be acceptable if placed close to connectors and used in conjunction with series resistors. But for faster protocols, alternative low-capacitance TVS arrays should be considered instead.
What design considerations apply when cascading the SMCJ13CA-E3/57T with other protection components like ferrite beads or common-mode chokes?
Cascading the SMCJ13CA-E3/57T with inductive elements requires careful impedance matching to avoid resonance or delayed response. Ferrite beads or chokes add series inductance, which can slow down the TVS’s ability to react to fast transients like ESD (<1ns). To prevent this, place the choke closer to the source and the SMCJ13CA-E3/57T directly at the point of entry into the IC. Additionally, ensure the bead doesn’t attenuate desired signal levels while still allowing fault currents to reach the TVS efficiently during overvoltage events.
Why might someone choose surface-mount packaging (DO-214AB) for the SMCJ13CA-E3/57T over through-hole alternatives, despite potential soldering challenges?
The DO-214AB package used by the SMCJ13CA-E3/57T enables compact board layouts and supports automated assembly, reducing manufacturing cost and footprint—critical in consumer electronics. While manual soldering demands precision, the smaller size also lowers parasitic inductance, improving transient response. Through-hole equivalents often have larger packages that increase loop area, degrading performance during fast transients. For space-constrained designs, the trade-off in reflow profile control is outweighed by functional benefits of the SMCJ13CA-E3/57T’s surface-mount form factor.
How does the MSL rating of 1 for the SMCJ13CA-E3/57T influence storage and handling in humid environments, and what precautions should engineers take?
With an Moisture Sensitivity Level (MSL) of 1, the SMCJ13CA-E3/57T is classified as non-hygroscopic and unaffected by moisture during normal storage. This means it can be stored indefinitely at room temperature and humidity without baking prior to use—unlike components rated MSL 3 or higher. Nevertheless, prolonged exposure to extreme humidity may still affect solderability over years. Best practice includes keeping reels sealed until just before pick-and-place operation and avoiding unnecessary handling to preserve lead integrity and prevent contamination.
Is the SMCJ13CA-E3/57T suitable for automotive applications requiring AEC-Q101 qualification, and what limitations exist regarding certification?
The SMCJ13CA-E3/57T itself is not inherently AEC-Q101 qualified, despite meeting RoHS standards and having a wide operating temperature range (-55°C to 150°C). Automotive systems often mandate component-level screening for thermal cycling, vibration, and electromigration, which may require additional validation. If used in automotive-grade designs, supplemental testing beyond datasheet specs is necessary. Engineers should verify whether their supplier offers automotive versions or consider alternative parts explicitly certified under AEC-Q101, even if they share similar electrical characteristics with the SMCJ13CA-E3/57T.
How does the clamping voltage of 21.5V at 69.8A relate to actual system voltages, and what risk exists if this value exceeds the maximum input tolerance of downstream circuitry?
The SMCJ13CA-E3/57T clamps transient voltages to 21.5V when subjected to a specified peak pulse current (typically 69.8A per IEEE C62.41). While this limits overshoot, it assumes ideal placement and low-impedance return paths. If the protected IC cannot tolerate voltages above, say, 18V, then residual energy or ringing could still damage it. Therefore, designers must ensure downstream components have sufficient voltage margins beyond 21.5V, possibly adding series resistors or using secondary suppression stages. The SMCJ13CA-E3/57T reduces but does not eliminate risk—it manages energy, not guarantees safety alone.
Can the bidirectional nature of the SMCJ13CA-E3/57T be exploited to protect unidirectional signals, and are there any drawbacks compared to dedicated unidirectional TVS diodes?
Yes, the SMCJ13CA-E3/57T can protect unidirectional signals by leveraging its symmetric breakdown behavior. However, unidirectional TVS diodes are optimized for one-way surge flow, offering slightly faster response and lower leakage in the reverse direction. The SMCJ13CA-E3/57T’s bidirectional design introduces negligible penalty for most applications, but if signal integrity is paramount (e.g., in precision analog lines), a dedicated part might offer marginal improvement. Still, the SMCJ13CA-E3/57T remains a robust choice where simplicity and cost outweigh minor performance differences.
What role does the Base Product Number "SMCJ13" play in selecting compatible variants, and how does it relate to voltage grading across the TransZorb® family?
The Base Product Number "SMCJ13" identifies a family of TVS diodes sharing the same package and core architecture, differentiated only by breakdown voltage. Variants like SMCJ13CA-E3/57T (14.4V min breakdown) differ from non-CA versions in precise clamping thresholds and surge capabilities. Choosing the correct base model ensures consistent thermal and electrical performance. Misselection—such as using an SMCJ13 instead of SMCJ13CA—could result in inadequate protection during transients. Always reference the CA suffix for enhanced avalanche characteristics in the SMCJ13 family.
How does the absence of Power Line Protection specification affect the suitability of the SMCJ13CA-E3/57T for mains-connected equipment?
The SMCJ13CA-E3/57T is intended for signal-line or low-voltage bus protection, not for direct connection to AC mains. Without features like reinforced insulation, creepage distance compliance, or high-energy withstand per IEC 61000-4-5, it poses a safety hazard in primary side applications. Using it on secondary-side rails post-transformer is acceptable, but never on live AC lines. For true power line protection, devices rated for 1500W+ with proper isolation and coordination with MOVs or gas discharge tubes are required instead.
What impact does lead-free solder reflow have on the mechanical reliability of the SMCJ13CA-E3/57T, especially after multiple thermal cycles?
Lead-free soldering (typically 245–260°C peak) increases thermal stress on the SMCJ13CA-E3/57T’s die attach and wire bonds, potentially accelerating fatigue over time. While the DO-214AB package is robust, repeated thermal cycling between -55°C and +150°C can weaken solder joints, particularly if PCB CTE mismatches occur. Engineers should follow IPC guidelines for land patterns and consider adding mechanical support in harsh environments. Testing under accelerated life conditions is recommended for mission-critical systems using the SMCJ13CA-E3/57T.
Does the Tape & Reel packaging of the SMCJ13CA-E3/57T affect orientation sensitivity during automated assembly, and how should feeders be configured?
The SMCJ13CA-E3/57T in Tape & Reel (TR) format follows EIA-481 standards, ensuring consistent carrier tape pitch and component alignment. Standard pick-and-place machines can handle it without modification, provided feeder slots match DO-214AB dimensions. Incorrect feeder calibration may misalign the device, causing placement errors or damage during pickup. Always verify reel orientation (e.g., pocket rotation) matches machine programming. Using original reels from authorized distributors minimizes risk of contamination or mispackaging affecting the SMCJ13CA-E3/57T supply chain integrity.
How does the 1500W peak pulse power rating translate to real-world surge events, and what waveform defines this specification?
The 1500W rating applies to an 8/20µs waveform per IEC 61000-4-5, simulating lightning-induced surges or heavy inductive kickback. At 21.5V clamping and 69.8A peak current, this represents a single high-energy event. Realistically, such surges rarely occur repeatedly within short intervals; however, cumulative damage can arise from dozens of sub-100A pulses. Designers should assess expected surge frequency and environment (industrial vs. office) to determine if the SMCJ13CA-E3/57T’s rating suffices or if redundant protection layers are needed.
Why is the REACH and ECCN status listed as "Unaffected" and "EAR99," and what does this imply for global export compliance?
The SMCJ13CA-E3/57T contains no substances restricted under REACH Annex XVII and falls outside controlled chemical categories, hence "REACH Unaffected." Its ECCN designation as EAR99 indicates it is subject to U.S. Export Administration Regulations but generally unrestricted for civilian use worldwide. This simplifies compliance for OEMs shipping globally. However, end-use controls still apply—for example, military or space applications may require additional licensing regardless of component origin, including the SMCJ13CA-E3/57T.

Parts with Similar Specifications

The three parts on the right have similar specifications to Vishay General Semiconductor - Diodes Division SMCJ13CA-E3/57T

Product Attribute SMCJ13CA-M3/57T SMCJ13CA-E3/9AT SMCJ13CA-M3/9AT SMCJ13CA-13
Part Number SMCJ13CA-M3/57T SMCJ13CA-E3/9AT SMCJ13CA-M3/9AT SMCJ13CA-13
Manufacturer Vishay General Semiconductor - Diodes Division Vishay General Semiconductor - Diodes Division Vishay General Semiconductor - Diodes Division Diodes Incorporated
Series - - - -
Bidirectional Channels - - - -
Voltage - Reverse Standoff (Typ) - - - -
Voltage - Breakdown (Min) - - - -
Voltage - Clamping (Max) @ Ipp - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Power - Peak Pulse - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Mounting Type - Surface Mount Through Hole Surface Mount
Type - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Applications - - - -
Power Line Protection - - - -
Current - Peak Pulse (10/1000µs) - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Capacitance @ Frequency - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C

SMCJ13CA-E3/57T Datasheet PDF

Download SMCJ13CA-E3/57T pdf datasheets and Vishay General Semiconductor - Diodes Division documentation for SMCJ13CA-E3/57T - Vishay General Semiconductor - Diodes Division.

Datasheets
SMCJ5.0A thru SMCJ188CA.pdf
PCN Assembly/Origin
Multiple Parts 30/Mar/2022.pdf
HTML Datasheet
SMCJ5.0A thru SMCJ188CA.pdf

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Customer Reviews

Evaluation: 10 Articles

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

  • Daic***K.
    Mar 23, 2026

    Very good. No issue after long time testing.

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SMCJ13CA-E3/57T Image

SMCJ13CA-E3/57T

Vishay General Semiconductor - Diodes Division
32D-SMCJ13CA-E3/57T

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