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Vishay General Semiconductor - Diodes Division SMBJ10C-E3/52
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- Part No.:
- SMBJ10C-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ10C-E3/52.pdf
- Description:
- TVS DIODE 10VWM 18.8VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,033
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Product details
Overview
SMBJ10C-E3/52 from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed to protect sensitive electronics against ESD, lightning-induced surges, and inductive switching transients. It features 10 V stand-off voltage (VWM), 11.1–12.3 V breakdown voltage (VBR) at 1 mA, 17.0 V maximum clamping voltage (VC) at 35.3 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform.
For engineers reviewing the SMBJ10C-E3/52 datasheet, SMBJ10C-E3/52 pinout, SMBJ10C-E3/52 application, or SMBJ10C-E3/52 equivalent, this device is selected for robust overvoltage protection on DC power rails, I/O lines, and sensor interfaces in industrial control systems, automotive ECUs, and telecom infrastructure where fast response (<1 ns), low clamping ratio, and AEC-Q101-compliant reliability are required.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 MΩ at VWM), but triggers into low-impedance conduction when reverse voltage exceeds VBR, limiting transient energy to safe levels via controlled avalanche breakdown. Its glass-passivated junction ensures stable leakage and repeatable clamping performance across temperature.
The SMBJ10C-E3/52 is rated for 150 °C maximum junction temperature, exhibits 0.078 %/°C VBR temperature coefficient, and delivers 35.3 A peak pulse current (IPPM) while maintaining ≤17.0 V clamping - enabling effective protection of 3.3 V, 5 V, and 12 V circuits without overstressing downstream ICs or MOSFETs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before significant leakage; defines safe DC rail margin for 12 V systems. |
| VBR (min/max) | 11.1 V / 12.3 V at 1 mA - Confirmed breakdown range ensures reliable triggering above VWM with margin against false trips. |
| VC @ IPPM | 17.0 V at 35.3 A - Clamping voltage limits transient stress on protected ICs; enables compatibility with 16 V-rated components. |
| PPPM | 600 W - Peak pulse power handling with 10/1000 µs waveform supports IEC 61000-4-5 Level 4 surge immunity testing. |
| IPPM | 35.3 A - Peak surge current capacity derived from VC and PPPM; validates protection for 1 kV/2 Ω surge sources. |
| TJ max | 150 °C - Enables operation in under-hood automotive and industrial environments without derating below 125 °C ambient. |
| Package | SMB (DO-214AA) - Standardized surface-mount footprint with 5.0 mm × 5.0 mm copper pad thermal design per datasheet fig. 2. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads; polarity indicated by cathode band (cathode terminal).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or return path; forms shunt path during transient events. |
| Cathode | Protected line input | Connected to the line being protected (e.g., 12 V rail or signal trace); reverse-biased during normal operation. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Supports IEC 61000-4-5 Level 4 (4 kV/2 Ω) surge testing on 12 V DC inputs without failure. |
| 17.0 V clamping at 35.3 A | Clamping ratio (VC/VWM) = 1.7, minimizing voltage overshoot on protected 10–12 V circuits. |
| Fast response time (<1 ns) | Activates before most microcontrollers or communication ICs can be damaged by ESD or fast transients. |
| MSL Level 1 (260 °C) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns. |
| AEC-Q101 qualified option | HE3 suffix variant available for automotive applications requiring validated reliability and qualification data. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V supply lines in engine control units (ECUs) and body control modules against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed between battery rail and local regulator input. Use Value: Limits voltage to ≤17.0 V during 100 V/50 ms load dump events, preventing damage to LDOs and MCU power domains. |
Use Scenario: Safeguarding analog outputs and digital I/O of pressure/temperature sensors in PLCs and factory automation equipment. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional TVS placed on sensor signal lines referenced to system ground. Use Value: Clamps ESD strikes (IEC 61000-4-2 ±8 kV contact) within nanoseconds, preserving ADC accuracy and interface integrity. |
| Telecom DC Power Input Protection | Consumer Device USB Port Protection |
|
Use Scenario: Securing -48 V or +24 V DC inputs of telecom base station power supplies against lightning-induced surges. IC Role / Device Role / Timing Role: Primary-level TVS on input stage ahead of bulk capacitors and active rectifiers. Use Value: Absorbs 600 W transient energy without degradation, maintaining system uptime during outdoor surge events. |
Use Scenario: Adding secondary-level surge suppression on VBUS lines of USB-C ports in smart home hubs and set-top boxes. IC Role / Device Role / Timing Role: Unidirectional clamp between VBUS and GND, coordinated with upstream polyfuse and ESD diodes. Use Value: Prevents latch-up in USB PD controllers during hot-plug transients by limiting VBUS overshoot to <17 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10A-E3/52 | Same VWM (10 V), identical VBR (11.1–12.3 V), same VC (17.0 V), but unidirectional only - no "C" suffix distinction needed; SMBJ10C-E3/52 is functionally identical to SMBJ10A-E3/52 per Vishay documentation. | No functional difference; both intended for unidirectional DC rail protection. | Select SMBJ10A-E3/52 if ordering system requires legacy part number format; SMBJ10C-E3/52 is fully interchangeable. |
| SMCJ10A-E3/52 | Same VWM and VBR, but SMC (DO-214AB) package - larger footprint (7.11 mm × 6.22 mm), higher PPPM (1500 W), lower RθJA (60 °C/W). | Used where higher surge energy (e.g., IEC 61000-4-5 Level 5) or improved thermal dissipation is required. | Choose SMCJ10A-E3/52 only if board layout allows larger package and 1500 W rating is necessary; SMBJ10C-E3/52 suffices for 600 W requirements. |
Compared with SMBJ10A-E3/52, SMBJ10C-E3/52 offers identical electrical performance in the same SMB package, while SMCJ10A-E3/52 trades compactness for higher surge capacity and better thermal performance - making SMBJ10C-E3/52 optimal for space-constrained 600 W protection tasks.
Availability
SMBJ10C-E3/52 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, telecom DC input safeguarding, and consumer USB port surge suppression requiring stable component supply and RoHS-compliant commercial-grade sourcing.
Supply support for SMBJ10C-E3/52 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability, precision, and application-specific optimization.
The SMBJ series is part of Vishay's TRANSZORB® TVS portfolio, engineered for high-energy transient suppression in automotive, industrial, and communications systems where fast response, stable clamping, and AEC-Q101 qualification are critical.
FAQ
What is the clamping voltage of SMBJ10C-E3/52 and how does it protect downstream components?
The SMBJ10C-E3/52 has a maximum clamping voltage (VC) of 17.0 V at 35.3 A peak pulse current. This means that during a transient event, the device limits the voltage seen by downstream components to no more than 17.0 V - well below typical 20 V absolute maximum ratings of many power management ICs and microcontrollers. The low clamping ratio (1.7× VWM) ensures minimal overvoltage stress while absorbing up to 600 W of surge energy, directly protecting sensitive circuitry from damage caused by ESD, lightning, or inductive switching.
Is SMBJ10C-E3/52 unidirectional or bidirectional, and how is polarity identified?
SMBJ10C-E3/52 is a unidirectional TVS diode, meaning it conducts only when reverse-biased beyond its breakdown voltage. Polarity is marked by a cathode band on the SMB (DO-214AA) package - the banded end is the cathode and must be connected to the line being protected (e.g., 12 V rail), while the anode connects to ground. Bidirectional variants use the "CA" suffix (e.g., SMBJ10CA); the "C" in SMBJ10C-E3/52 does not indicate bidirectionality - it is a Vishay internal revision or packaging designation consistent with unidirectional construction.
Does SMBJ10C-E3/52 meet automotive qualification standards?
The SMBJ10C-E3/52 itself is RoHS-compliant commercial-grade (E3 suffix), but Vishay offers AEC-Q101-qualified versions under the HE3 suffix (e.g., SMBJ10AHE3). While SMBJ10C-E3/52 shares identical electrical characteristics and SMB package with the HE3 variant, it is not certified to AEC-Q101 unless explicitly ordered with HE3 or HM3 suffixes. For automotive applications requiring formal qualification, specify SMBJ10AHE3 or confirm compliance documentation with Vishay prior to design-in.
What is the thermal resistance and maximum junction temperature of SMBJ10C-E3/52?
SMBJ10C-E3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per datasheet Fig. 2, and a maximum junction temperature (TJ) of +150 °C. This allows reliable operation in high-temperature environments such as under-hood automotive locations or enclosed industrial enclosures, provided PCB layout follows recommended pad dimensions and airflow is adequate for power dissipation up to 5.0 W continuous (PD).
How does SMBJ10C-E3/52 compare to SMAJ10A in terms of surge capability and package size?
SMBJ10C-E3/52 delivers 600 W peak pulse power in the SMB (DO-214AA) package, whereas SMAJ10A provides only 400 W in the smaller SMA (DO-214AC) package. The SMB package offers 30 % larger die area and superior thermal performance (RθJA = 100 °C/W vs. ~125 °C/W for SMAJ), enabling higher surge survivability and longer lifetime under repetitive transients. For designs requiring ≥600 W protection, SMBJ10C-E3/52 is the appropriate choice over SMAJ10A.
SMBJ10C-E3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 18.8V
- Current - Peak Pulse (10/1000µs):
- 31.9A
- 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 (SMBJ)
SMBJ10C-E3/52 FAQ
1.How can I place an order for SMBJ10C-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ10C-E3/52 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 SMBJ10C-E3/52 reliable?
The price and inventory of SMBJ10C-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ10C-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ10C-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ10C-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ10C-E3/52?
SMBJ10C-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ10C-E3/52 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 SMBJ10C-E3/52?
For technical support, including SMBJ10C-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ10C-E3/52 requirements.
6.How does Aetrix verify that SMBJ10C-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ10C-E3/52 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 SMBJ10C-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ10C-E3/52?
All SMBJ10C-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ10C-E3/52, 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 SMBJ10C-E3/52 part is unused and in its original packaging.
Return procedure for SMBJ10C-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ10C-E3/52 Tags
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