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Vishay General Semiconductor - Diodes Division SMBJ5.0CA-E3/5B
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- Part No.:
- SMBJ5.0CA-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ5.0CA-E3/5B.pdf
- Description:
- TVS DIODE 5VWM 9.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:681
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Product details
Overview
SMBJ5.0CA-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 5.0 V stand-off voltage (VWM), 6.4–7.25 V breakdown range (VBR), 600 W peak pulse power (10/1000 µs), and clamps to ≤9.2 V at 65.2 A peak surge current - deployed in sensor interface protection and industrial I/O circuits.
For engineers reviewing the SMBJ5.0CA-E3/5B datasheet, SMBJ5.0CA-E3/5B pinout, SMBJ5.0CA-E3/5B application, or SMBJ5.0CA-E3/5B equivalent, key selection criteria include bidirectional clamping capability, low clamping voltage under 65 A surge, RoHS-compliant matte tin terminations, MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a voltage-clamping protector using an avalanche junction structure. Its bidirectional symmetry enables identical transient suppression in both polarities without polarity marking, and its glass-passivated chip junction ensures stable leakage performance up to 150 °C junction temperature.
The SMBJ5.0CA-E3/5B delivers fast response (<1 ns) to ESD and lightning-induced surges while maintaining ≤800 µA reverse leakage at 5.0 V and ≤1.0 µA at 4.0 V. Thermal resistance is rated at 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), supporting reliable operation under repetitive 0.01% duty-cycle pulses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 6.4 V / 7.25 V at 10 mA - guaranteed breakdown onset window for bidirectional conduction |
| VC @ IPPM | ≤9.2 V at 65.2 A - clamped voltage during 10/1000 µs surge, defining system overvoltage margin |
| PPPM | 600 W - peak transient energy handling capacity under standard 10/1000 µs waveform |
| ID @ VWM | ≤800 µA - reverse leakage current at rated stand-off voltage, critical for low-power sensor biasing |
| TJ max | +150 °C - maximum junction temperature enabling use in industrial ambient environments |
| RθJA | 100 °C/W - thermal resistance determining required PCB copper area for sustained power dissipation |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unmarked bidirectional configuration with two terminals - no cathode/anode designation. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H), matte tin-plated leads, MSL Level 1, compatible with reflow profiles peaking at 260 °C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as input/output path; symmetric conduction eliminates polarity dependency in layout |
| Terminal 2 | Anode/Cathode (bidirectional) | Paired terminal completing the bidirectional clamping path; requires equal-length routing for balanced ESD immunity |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surge (4 kV line-earth) when mounted on 5 mm × 5 mm copper pads |
| Glass passivated junction | Ensures long-term stability of VBR and ID across temperature and humidity stress conditions |
| MSL Level 1 rating | Allows unlimited floor life and standard reflow without baking, reducing manufacturing overhead |
| RoHS-compliant matte tin leads | Guarantees solderability per J-STD-002 and whisker resistance per JESD 201 Class 2 |
Applications
| Industrial Sensor Interface | Automotive Body Control Module |
|---|---|
|
Use Scenario: Protecting analog output lines of pressure/temperature sensors exposed to load dump and inductive switching noise in factory automation systems. IC Role / Device Role / Timing Role: Bidirectional TVS placed across signal and ground to clamp transients before they reach ADC input or op-amp buffer. Use Value: Limits voltage excursion to ≤9.2 V during 65 A surges, preserving 12-bit ADC accuracy and preventing latch-up in downstream signal conditioning ICs. |
Use Scenario: Safeguarding LIN bus transceiver I/O pins against battery reverse connection and alternator load dump in door module ECUs. IC Role / Device Role / Timing Role: Standoff-rated TVS connected between LIN data line and chassis ground to absorb 10/1000 µs transients without affecting 19.2 kbps signaling integrity. Use Value: Maintains <5.0 V working voltage margin below LIN high-level threshold (12 V), ensuring no false dominant state during clamping events. |
| Consumer USB-C Port Protection | Telecom DSL Line Interface |
|
Use Scenario: Secondary-level surge suppression on VBUS and CC lines of USB-C receptacles subjected to hot-plug ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed adjacent to connector to shunt sub-100 ns ESD pulses before reaching USB PD controller. Use Value: Achieves <1 ns response time and ≤9.2 V clamping, preventing damage to 5 V tolerant CC logic and avoiding VBUS regulation disruption. |
Use Scenario: Front-end protection of ADSL/VDSL line drivers against lightning-induced common-mode surges on twisted-pair telephone lines. IC Role / Device Role / Timing Role: Paired SMBJ5.0CA-E3/5B devices configured in differential mode across tip/ring to suppress mode conversion transients. Use Value: Withstands 600 W surges while holding differential clamping voltage below 18.4 V, preserving line driver SOA and minimizing bit error rate during storm conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ5.0CA-M3/5B | Halogen-free variant with identical electrical specs and SMB package; same VWM, VBR, VC, and PPPM ratings | Required where halogen-free compliance is mandated by end-equipment environmental standards (e.g., EU EcoDesign) | Select when RoHS + halogen-free certification is contractually required; no layout or performance change needed |
| SMAJ5.0CA-E3/5B | Lower 400 W PPPM rating, higher RθJA (140 °C/W), and SMA (DO-214AC) package with smaller footprint (4.3 mm × 2.6 mm) | Suitable only for lower-energy transients or space-constrained designs where 600 W headroom is not required | Choose only if board area is critical and surge threat level is limited to IEC 61000-4-2 ±8 kV contact; not drop-in for SMBJ-level robustness |
Compared with SMBJ5.0CA-M3/5B, the SMBJ5.0CA-E3/5B offers identical protection performance with standard RoHS compliance; versus SMAJ5.0CA-E3/5B, it provides 50% higher surge power handling and superior thermal dissipation - essential for industrial and automotive deployments where reliability margins are non-negotiable.
Availability
SMBJ5.0CA-E3/5B is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body electronics, consumer USB-C port protection, and telecom DSL line protection requiring stable component supply and full traceability.
Supply support for SMBJ5.0CA-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 high-reliability transient suppression in harsh environments, engineered for automotive AEC-Q101 qualification, industrial temperature ranges, and repeatable clamping performance across production lots.
FAQ
What is the clamping voltage of SMBJ5.0CA-E3/5B at its rated peak pulse current?
The SMBJ5.0CA-E3/5B clamps to a maximum of 9.2 V at its specified peak pulse current of 65.2 A under the 10/1000 µs waveform condition. This value is measured with the device mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per JEDEC standards and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBJ5.0CA-E3/5B maintains this clamping performance consistently across its qualified temperature range.
Is SMBJ5.0CA-E3/5B suitable for automotive applications?
The base SMBJ5.0CA-E3/5B is commercial-grade and not AEC-Q101 qualified; however, Vishay offers the automotive variant SMBJ5.0CAHE3_B/I with identical electrical specs and AEC-Q101 qualification. For automotive use, specify the HE3 or HM3 suffix variants - the SMBJ5.0CA-E3/5B itself is intended for industrial and consumer applications where extended temperature validation is not required.
How does the bidirectional design of SMBJ5.0CA-E3/5B affect PCB layout?
The SMBJ5.0CA-E3/5B has no polarity marking and functions identically in both directions, eliminating orientation constraints during placement. Layout requires symmetric trace routing to both terminals to maintain balanced impedance and avoid skew in differential surge paths. No cathode band alignment is needed, simplifying automated assembly and reducing placement error risk compared to unidirectional TVS diodes.
What is the maximum reverse leakage current for SMBJ5.0CA-E3/5B at its stand-off voltage?
At the 5.0 V stand-off voltage (VWM), the SMBJ5.0CA-E3/5B exhibits a maximum reverse leakage current (ID) of 800 µA at 25 °C. This value increases with temperature but remains within specification limits up to +150 °C junction temperature. Low leakage ensures minimal impact on high-impedance sensor bias networks and preserves battery life in always-on monitoring systems using the SMBJ5.0CA-E3/5B.
Can SMBJ5.0CA-E3/5B be used in place of a unidirectional TVS like SMBJ5.0A-E3/5B?
No - SMBJ5.0CA-E3/5B is strictly bidirectional and lacks polarity marking, while SMBJ5.0A-E3/5B is unidirectional with a defined cathode band. Substituting one for the other risks incorrect clamping behavior: the unidirectional part blocks reverse voltage but conducts only in one direction, whereas the CA version clamps in both polarities. Use SMBJ5.0CA-E3/5B only where bidirectional protection is explicitly required.
SMBJ5.0CA-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):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.2V
- Current - Peak Pulse (10/1000µs):
- 65.2A
- 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)
SMBJ5.0CA-E3/5B FAQ
1.How can I place an order for SMBJ5.0CA-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ5.0CA-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 SMBJ5.0CA-E3/5B reliable?
The price and inventory of SMBJ5.0CA-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 SMBJ5.0CA-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ5.0CA-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ5.0CA-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ5.0CA-E3/5B?
SMBJ5.0CA-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ5.0CA-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 SMBJ5.0CA-E3/5B?
For technical support, including SMBJ5.0CA-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ5.0CA-E3/5B requirements.
6.How does Aetrix verify that SMBJ5.0CA-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ5.0CA-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 SMBJ5.0CA-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ5.0CA-E3/5B?
All SMBJ5.0CA-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ5.0CA-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 SMBJ5.0CA-E3/5B part is unused and in its original packaging.
Return procedure for SMBJ5.0CA-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ5.0CA-E3/5B Tags
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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