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Vishay General Semiconductor - Diodes Division SMBJ5.0CA/54
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- Part No.:
- SMBJ5.0CA/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ5.0CA/54.pdf
- Description:
- TVS DIODE 5VWM 9.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,893
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Product details
Overview
SMBJ5.0CA/54 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode designed for robust overvoltage protection on signal and power lines. It features a 5.0 V stand-off voltage (VWM), 6.4–7.25 V breakdown range (VBR), 600 W peak pulse power (10/1000 µs), clamping voltage of 9.2 V at 65.2 A, and operates across –55 °C to +150 °C junction temperature. It protects MOSFETs, ICs, and sensor signal lines in industrial and telecom equipment.
For engineers reviewing the SMBJ5.0CA/54 datasheet, SMBJ5.0CA/54 pinout, SMBJ5.0CA/54 application, or SMBJ5.0CA/54 equivalent, key selection criteria include bidirectional clamping behavior, low 9.2 V clamping voltage at rated surge current, SMB (DO-214AA) surface-mount package compatibility, and compliance with UL 497B for protector classification.
Technical Context
This bidirectional TVS diode uses a glass-passivated silicon junction to deliver fast response (<1 ps) and low incremental surge resistance. Its symmetrical I-V characteristics enable identical clamping in both polarities, making it suitable for AC-coupled or floating signal paths where polarity reversal is possible.
The device meets MSL Level 1 per J-STD-020 (peak reflow 260 °C), supports automated placement, and achieves 600 W peak pulse power with 0.01% duty cycle. Thermal resistance is 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), enabling reliable operation under repetitive transients when mounted on 5.0 mm × 5.0 mm copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - Maximum continuous reverse working voltage before significant leakage; ensures no conduction during normal 5 V system operation. |
| VBR min/max | 6.4 V / 7.25 V - Breakdown occurs within this range at 10 mA test current; guarantees reliable triggering above nominal rail. |
| VC @ IPPM | 9.2 V at 65.2 A - Clamped voltage during 10/1000 µs surge; limits downstream voltage stress to safe levels for 5 V logic. |
| PPPM | 600 W - Peak pulse power handling capability; sustains high-energy transients like EFT or lightning-induced surges. |
| IPPM | 65.2 A - Maximum non-repetitive peak surge current; defines absolute overcurrent withstand limit under standard waveform. |
| TJ max | +150 °C - Maximum junction temperature; enables use in high-ambient environments such as industrial motor drives or base stations. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 5.59 mm × 4.06 mm footprint; compatible with JEDEC-compliant pick-and-place and reflow processes. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads, UL 94 V-0 rated compound, and polarity-unmarked terminals for bidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional terminal pair | No polarity marking; either end functions identically as anode or cathode depending on transient polarity-enables placement without orientation check. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Withstands high-energy transients common in industrial switching and telecom line surges without degradation. |
| 9.2 V clamping voltage at 65.2 A | Keeps protected 5 V circuit nodes below 10 V during worst-case surge-within safe margin for most 5 V logic and interface ICs. |
| Low profile SMB package | Enables compact PCB layouts and compatibility with automated SMT assembly lines using standard DO-214AA tooling. |
| UL 497B recognized (QVGQ2) | Validated for use in safety-critical telecom and industrial protectors-reduces certification burden for end-equipment designers. |
| MSL Level 1, 260 °C peak reflow | Eliminates moisture sensitivity concerns and supports single-pass lead-free reflow without baking or special handling. |
Applications
| Industrial Motor Control | Telecom Line Interface |
|---|---|
|
Use Scenario: Protection of gate drivers and feedback sensing lines against inductive kickback from relay coils and solenoid switching. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across MOSFET gate-source or op-amp input pins. Use Value: Limits transient excursions to ≤9.2 V, preventing latch-up or oxide damage in 5 V control ICs operating near motors. |
Use Scenario: Surge suppression on RS-485 or Ethernet PHY differential pairs exposed to lightning-induced surges in outdoor base stations. IC Role / Device Role / Timing Role: Primary front-end TVS on balanced data lines, placed before common-mode chokes and receiver inputs. Use Value: Symmetrical clamping maintains signal integrity during bipolar transients while meeting ITU-T K.21 basic protection requirements. |
| Automotive Body Control Module | Consumer Sensor Hub |
|
Use Scenario: Protecting LIN bus transceivers and microcontroller I/O pins from load dump and ISO 7637-2 pulse 1/2a transients. IC Role / Device Role / Timing Role: Secondary-level TVS on low-speed communication lines, used alongside primary battery-line suppressors. Use Value: Withstands 65.2 A surge current and operates up to +150 °C-meets AEC-Q101 qualification when ordered as HE3/HM3 variants. |
Use Scenario: Shielding MEMS accelerometer and ambient light sensor signal traces from ESD events during handling and operation. IC Role / Device Role / Timing Role: Localized ESD clamp at sensor connector or ADC input, minimizing trace inductance path. Use Value: Sub-10 V clamping prevents sensor output saturation and preserves measurement accuracy during ±8 kV contact discharge (IEC 61000-4-2). |
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-E3/52 | Same electrical specs and SMB package; RoHS-compliant commercial-grade variant with 7" tape/reel packaging. | Identical protection performance; differs only in packaging format and compliance grade-not AEC-Q101 qualified. | Select when automotive qualification is not required and standard commercial logistics suffice. |
| SAC5.0 | Lower 500 W PPPM, higher 10.5 V clamping at 50 A, same VWM and SMB package; manufactured by Littelfuse. | Marginally reduced surge handling and higher clamping may risk 5 V ICs under extreme transients; suitable for less demanding environments. | Choose only if cost sensitivity outweighs need for 600 W rating and sub-10 V clamping headroom. |
Compared with SMBJ5.0CA/54, the SMBJ5.0CA-E3/52 offers identical protection with simplified logistics, while SAC5.0 trades 100 W peak power and 1.3 V higher clamping for potential cost savings-neither is pin-compatible nor drop-in due to differing surge derating curves and thermal profiles.
Availability
SMBJ5.0CA/54 is available at Aetrix Electronics and suitable for industrial motor control, telecom line interface, automotive body electronics, and consumer sensor hub designs requiring stable component supply and consistent surge immunity performance.
Supply support for SMBJ5.0CA/54 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, TVS devices, and optoelectronics with emphasis on reliability and application-specific performance.
The SMBJ series was developed to deliver high-power, low-clamping transient protection in standardized surface-mount packages for industrial, telecom, and automotive systems where space, consistency, and safety certification matter.
FAQ
What is the clamping voltage of SMBJ5.0CA/54 and how is it measured?
The SMBJ5.0CA/54 has a maximum clamping voltage (VC) of 9.2 V at 65.2 A peak pulse current, tested with a 10/1000 µs waveform per IEC 61000-4-5. This value represents the upper voltage limit imposed on protected circuitry during a standardized surge event-and is confirmed in the Vishay datasheet revision 09-Jan-2024, page 2, under Electrical Characteristics.
Is SMBJ5.0CA/54 bidirectional and how does that affect its use?
Yes, SMBJ5.0CA/54 is a bidirectional TVS diode, meaning it provides symmetrical clamping for positive and negative transients without polarity dependence. This eliminates orientation constraints during PCB placement and makes it ideal for AC-coupled lines, differential interfaces, or floating grounds-unlike unidirectional variants such as SMBJ5.0A which require correct cathode alignment.
Does SMBJ5.0CA/54 meet automotive qualification standards?
The base SMBJ5.0CA/54 is a commercial-grade part; however, Vishay offers AEC-Q101 qualified versions under ordering codes SMBJ5.0CAHE3_X (RoHS-compliant) or SMBJ5.0CAHM3_X (halogen-free). These variants undergo stress testing per AEC-Q101 and are marked with HE3 or HM3 suffixes-SMBJ5.0CA/54 itself does not carry automotive qualification unless explicitly ordered with those suffixes.
What is the thermal resistance of SMBJ5.0CA/54 and why does it matter?
SMBJ5.0CA/54 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead (RθJL) of 20 °C/W, measured on 5.0 mm × 5.0 mm copper pads. These values determine how effectively heat dissipates during repetitive surges-if layout reduces pad area or adds thermal isolation, RθJA rises, increasing junction temperature and potentially degrading long-term reliability.
Can SMBJ5.0CA/54 be used in place of SMBJ5.0A in a design?
SMBJ5.0CA/54 can replace SMBJ5.0A only if bidirectional clamping is acceptable and required-since SMBJ5.0A is unidirectional and relies on cathode marking for correct orientation. Swapping introduces no electrical hazard but may reduce protection margin on forward-biased transients; always verify system-level polarity behavior and ensure downstream components tolerate symmetrical clamping.
SMBJ5.0CA/54 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/54 FAQ
1.How can I place an order for SMBJ5.0CA/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ5.0CA/54 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/54 reliable?
The price and inventory of SMBJ5.0CA/54 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/54 is usually 5 days.
3.What payment methods are accepted for SMBJ5.0CA/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ5.0CA/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ5.0CA/54?
SMBJ5.0CA/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ5.0CA/54 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/54?
For technical support, including SMBJ5.0CA/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ5.0CA/54 requirements.
6.How does Aetrix verify that SMBJ5.0CA/54 is sourced from the original manufacturer or authorized distributors?
All SMBJ5.0CA/54 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/54 meets industry standards.
7.What is the process for return or replacement of SMBJ5.0CA/54?
All SMBJ5.0CA/54 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ5.0CA/54, 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/54 part is unused and in its original packaging.
Return procedure for SMBJ5.0CA/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ5.0CA/54 Tags
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