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Vishay General Semiconductor - Diodes Division SMBJ10CA-E3/5B
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- Part No.:
- SMBJ10CA-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ10CA-E3/5B.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,150
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Product details
Overview
SMBJ10CA-E3/5B from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal or power lines. It features a 10 V stand-off voltage (VWM), 17.0 V maximum clamping voltage at 35.3 A peak pulse current (IPPM), and 600 W peak pulse power capability with 10/1000 µs waveform - deployed in industrial sensor interfaces and telecom line protection.
For engineers reviewing the SMBJ10CA-E3/5B datasheet, SMBJ10CA-E3/5B pinout, SMBJ10CA-E3/5B application, or SMBJ10CA-E3/5B equivalent, key selection criteria include bidirectional clamping symmetry, low clamping ratio (VC/VWM = 1.7), junction temperature rating up to +150 °C, and RoHS-compliant matte tin-plated terminals suitable for automated SMT assembly.
Technical Context
This TVS diode operates as a voltage-clamping protection device across bidirectional signal or DC bus lines, responding within <1 ns to transient overvoltages induced by inductive switching or ESD events. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<5.0 µA at VWM), while the 100 °C/W junction-to-ambient thermal resistance supports operation under moderate PCB copper pad heatsinking.
The SMBJ10CA-E3/5B complies with ANSI/IEEE C62.35 surge standards and meets MSL Level 1 per J-STD-020 (peak reflow 260 °C). It is not AEC-Q101 qualified - the automotive-grade variant uses HE3/HM3 suffixes, whereas the -E3/5B denotes commercial-grade, RoHS-compliant, 13" tape-and-reel packaging.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 10 V - maximum continuous reverse voltage before significant conduction begins; defines operating margin below clamping threshold |
| VBR min/max (Breakdown Voltage) | 11.1 V / 12.3 V at 1.0 mA test current - guaranteed symmetric breakdown in both directions for bidirectional protection |
| VC (Clamping Voltage) | 17.0 V at IPPM = 35.3 A (10/1000 µs) - limits downstream voltage stress during surge; clamping ratio = 1.7×VWM |
| PPPM (Peak Pulse Power) | 600 W - surge energy handling capacity under standardized 10/1000 µs waveform; derates above 25 °C ambient |
| ID (Reverse Leakage) | ≤5.0 µA at VWM - minimal standby power loss and signal integrity impact in high-impedance circuits |
| TJ max | +150 °C - enables use in enclosed industrial enclosures or near heat-generating components without derating |
| Package | SMB (DO-214AA) - 0.220" × 0.155" footprint; compatible with standard SMT pick-and-place; no polarity marking for bidirectional types |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no cathode/anode marking - both terminals are electrically symmetrical. Dimensions: 5.59 mm × 3.94 mm × 2.44 mm (L × W × H); matte tin-plated leads, solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Electrically identical to Terminal 2; no polarity - connects to protected line (e.g., RS-485 A/B, USB D+/D−) |
| Terminal 2 | Anode/Cathode (bidirectional) | Electrically identical to Terminal 1; forms symmetrical clamp path between line and ground or differential pair |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or differential signal lines (e.g., CAN, RS-485) without polarity concerns |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV, 2 Ω source) when mounted on 5 mm × 5 mm copper pads |
| Fast response time (<1 ns) | Clamps transients before sensitive IC inputs (e.g., microcontroller GPIO, transceivers) experience damaging overvoltage |
| MSL Level 1 rating | Allows unlimited floor life and single-reflow processing at 260 °C peak - eliminates moisture sensitivity handling overhead |
| RoHS-compliant matte tin plating | Ensures reliable solder wetting and intermetallic formation in lead-free reflow profiles; qualified per JESD 201 Class 2 |
Applications
| Industrial Sensor Interface | Telecom Line Protection |
|---|---|
|
Use Scenario: Protecting analog output (4–20 mA) or digital I²C/SPI lines in factory-floor pressure/temperature sensors exposed to motor drive noise. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between sensor signal line and system ground, shunting inductive kickback surges. Use Value: Limits transient voltage to ≤17.0 V, preventing latch-up or gate oxide damage in connected ADCs or microcontrollers. |
Use Scenario: Shielding RS-485 transceiver pins (A/B) in building automation controllers from lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Differential-line TVS connected across A–B and from each line to ground, suppressing common-mode and differential-mode transients. Use Value: Maintains signal integrity during 1 kV/µs fast-rising transients while adding <0.5 pF capacitance per terminal - negligible at <10 Mbps. |
| Consumer USB Port ESD | DC Power Rail Clamping |
|
Use Scenario: ESD protection on USB 2.0 D+ and D− lines in set-top boxes or smart displays subjected to ±8 kV contact discharge per IEC 61000-4-2. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed directly at USB connector, referenced to chassis ground. Use Value: Clamps ESD pulses to <17 V within <1 ns, preventing data corruption or PHY damage without degrading 480 Mbps signal rise time. |
Use Scenario: Overvoltage suppression on 12 V DC input rails in PoE-powered access points or IP cameras during hot-swap or load-dump events. IC Role / Device Role / Timing Role: TVS connected between rail and ground, absorbing 600 W surge energy from inductive back-EMF or supply transients. Use Value: Holds rail voltage below 17 V for ≥1 ms, allowing downstream DC-DC converters to remain functional and avoid brownout reset. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10CA-M3/5B | Halogen-free, RoHS-compliant variant; identical electrical specs and SMB package; same 3200-piece 13" reel packaging | No difference in circuit performance or layout; selected where halogen-free compliance is mandated (e.g., EU public infrastructure) | Direct drop-in replacement if halogen-free material declaration is required; no design or qualification change needed |
| SMCJ10CA-E3/57T | Same VWM (10 V) and VC (17.0 V), but in larger SMC (DO-214AB) package; 1500 W PPPM rating; higher thermal mass | Used where higher surge endurance (>600 W) or improved thermal dissipation is needed; requires larger PCB footprint (7.11 mm × 6.22 mm) | Select when surge duty cycle exceeds 0.01% or ambient exceeds 85 °C; not pin-compatible due to different package outline and pad layout |
Compared with SMBJ10CA-E3/5B, the M3/5B offers identical protection performance with halogen-free construction, while the SMCJ10CA-E3/57T delivers 2.5× higher surge power handling at the cost of board space and thermal interface redesign.
Availability
SMBJ10CA-E3/5B is available at Aetrix Electronics and suitable for industrial sensor interfaces, telecom line protection, consumer USB port ESD, and DC power rail clamping requiring stable component supply and full traceability.
Supply support for SMBJ10CA-E3/5B 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 targets board-level transient suppression in space-constrained applications - engineered for fast response, repeatable clamping, and compatibility with high-volume SMT manufacturing.
FAQ
What is the clamping voltage of SMBJ10CA-E3/5B at its rated peak pulse current?
The SMBJ10CA-E3/5B has a maximum clamping voltage (VC) of 17.0 V when subjected to its rated peak pulse current (IPPM) of 35.3 A under the 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees consistent overvoltage limiting across production lots and temperature ranges from −55 °C to +150 °C.
Is SMBJ10CA-E3/5B suitable for automotive applications?
No - SMBJ10CA-E3/5B is a commercial-grade part with -E3 suffix and is not AEC-Q101 qualified. For automotive use, Vishay specifies variants with HE3 or HM3 suffixes (e.g., SMBJ10CAHE3_B/I), which undergo additional stress testing and lot traceability per AEC requirements. Using SMBJ10CA-E3/5B in automotive systems may violate functional safety validation protocols.
How does the bidirectional nature of SMBJ10CA-E3/5B affect its placement on a PCB?
The SMBJ10CA-E3/5B has no polarity marking and identical electrical behavior in both directions, so it can be placed without orientation constraints - ideal for differential lines like RS-485 A/B or USB D+/D−. Unlike unidirectional TVS diodes, no cathode band alignment is required, simplifying automated placement and reducing assembly errors.
What is the thermal resistance of SMBJ10CA-E3/5B, and how does it impact layout?
SMBJ10CA-E3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on minimum recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain safe operation at full 600 W surge rating, ensure adequate copper area and avoid thermal isolation - no additional heatsink is required for single-pulse events.
Can SMBJ10CA-E3/5B replace a unidirectional SMBJ10A in an existing design?
Only if the circuit requires bidirectional clamping - SMBJ10CA-E3/5B cannot replace SMBJ10A in DC-biased applications where forward conduction must be blocked in one direction (e.g., 12 V rail to ground). The CA version conducts in both directions above VBR, whereas the A version blocks forward current until ~3.5 V. Layout change is unnecessary, but functional verification is mandatory.
SMBJ10CA-E3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 35.3A
- 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)
SMBJ10CA-E3/5B FAQ
1.How can I place an order for SMBJ10CA-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ10CA-E3/5B 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 SMBJ10CA-E3/5B reliable?
The price and inventory of SMBJ10CA-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ10CA-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ10CA-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ10CA-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ10CA-E3/5B?
SMBJ10CA-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ10CA-E3/5B 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 SMBJ10CA-E3/5B?
For technical support, including SMBJ10CA-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ10CA-E3/5B requirements.
6.How does Aetrix verify that SMBJ10CA-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ10CA-E3/5B 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 SMBJ10CA-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ10CA-E3/5B?
All SMBJ10CA-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ10CA-E3/5B, 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 SMBJ10CA-E3/5B part is unused and in its original packaging.
Return procedure for SMBJ10CA-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ10CA-E3/5B Tags
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