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Vishay General Semiconductor - Diodes Division SMBJ5.0CA-M3/52
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- Part No.:
- SMBJ5.0CA-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ5.0CA-M3/52.pdf
- Description:
- TVS DIODE 5VWM 9.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,408
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Product details
Overview
SMBJ5.0CA-M3/52 from Vishay General Semiconductor is a bidirectional 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 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.
For engineers reviewing the SMBJ5.0CA-M3/52 datasheet, SMBJ5.0CA-M3/52 pinout, SMBJ5.0CA-M3/52 application, or SMBJ5.0CA-M3/52 equivalent, key selection considerations include bidirectional surge clamping capability, low clamping ratio (VC/VWM ≈ 1.84), halogen-free RoHS compliance (M3 suffix), and suitability for I/O line protection in industrial sensors, telecom interfaces, and automotive control modules.
Technical Context
This bidirectional TVS diode functions as a voltage-clamped shunt protector: under normal operation it presents high impedance (>1 MΩ at 5.0 V), but triggers into low-impedance conduction when transient voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance (±5% min/max) and fast response time (<1 ns).
The device complies with IEC 61000-4-2 (ESD ±30 kV air, ±30 kV contact) and IEC 61000-4-5 (surge ±1 kV line-to-line, ±2 kV line-to-ground), with thermal resistance RθJA = 100 °C/W on standard 0.2" × 0.2" copper pads and RθJL = 20 °C/W to lead - enabling reliable power dissipation during repetitive 0.01% duty-cycle transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - maximum continuous reverse operating voltage before leakage exceeds 800 µA; defines safe signal line bias margin. |
| VBR (min/max) | 6.4 V / 7.25 V at 10 mA - guaranteed breakdown onset range; ensures consistent triggering across production lots. |
| VC @ IPPM | 9.2 V at 65.2 A - clamped voltage during 600 W 10/1000 µs surge; limits downstream IC stress to safe levels. |
| PPPM | 600 W - peak pulse power handling per single transient; supports robust protection in harsh EMC environments. |
| IPPM | 65.2 A - maximum non-repetitive surge current (10/1000 µs); determines minimum trace width and PCB layout clearance. |
| TJ max | +150 °C - maximum junction temperature; enables use in under-hood automotive or high-ambient industrial enclosures. |
| Package | SMB (DO-214AA) - 0.220" × 0.155" footprint with 0.086" cathode band; compatible with automated SMT placement and reflow profiles up to 260 °C. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking - both terminals are electrically symmetrical and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional surge path | No polarity marking required; either terminal connects to protected line, the other to ground - simplifies layout and eliminates orientation errors. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Supports high-energy surge immunity without derating in compact SMB footprint - eliminates need for larger DO-214AB or axial packages. |
| Clamping voltage 9.2 V at 65.2 A | Clamping ratio VC/VWM = 1.84 ensures minimal overvoltage exposure to downstream 5 V logic or analog front-ends. |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets IPC-1752A material declaration requirements and JEDEC J-STD-020 MSL Level 1 - suitable for lead-free reflow and green manufacturing. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns response), critical for protecting high-speed USB, CAN, or RS-485 receivers. |
| AEC-Q101 qualification option available | Base P/NHM3_X variant supports automotive-grade reliability testing (HTOL, TC, UHAST) - enables drop-in use in ADAS sensor hubs and body control modules. |
Applications
| Industrial Sensor Interface Protection | Automotive Body Control Module I/O |
|---|---|
|
Use Scenario: Protecting 5 V analog output lines (e.g., pressure, temperature sensors) from load dump and relay coil flyback in factory automation PLCs. IC Role / Device Role / Timing Role: Bidirectional shunt clamp placed between signal line and chassis ground, absorbing transients before they reach ADC input or op-amp buffer. Use Value: Prevents sensor calibration drift and microcontroller reset events caused by >1 kV EFT bursts - validated per IEC 61000-4-4 Level 4. |
Use Scenario: Safeguarding LIN bus transceiver pins and switch inputs in door module ECUs exposed to battery disconnect spikes and alternator load dump. IC Role / Device Role / Timing Role: Low-capacitance (≈200 pF) bidirectional TVS placed at connector entry point, clamping transients within 1 ns before reaching PHY layer. Use Value: Maintains LIN communication integrity during 100 V/50 ms load dump events - meets ISO 7637-2 Pulse 5a requirements without signal distortion. |
| Telecom Ethernet Port Surge Suppression | Consumer USB-C Power Delivery Line Protection |
|
Use Scenario: Secondary-level surge protection on 10/100BASE-TX PHY differential pairs in PoE-powered access points and switches. IC Role / Device Role / Timing Role: Paired SMBJ5.0CA-M3/52 devices (one per line) referenced to common-mode ground, clamping common-mode surges above 5 V. Use Value: Limits induced common-mode voltage to <9.2 V during 1.2/50 µs + 8/20 µs combo wave tests - preserves PHY latch-up immunity and reduces BOM count vs. discrete resistor-capacitor networks. |
Use Scenario: Overvoltage protection on VBUS and CC lines in USB-C receptacles subjected to accidental 20 V adapter misconnection or hot-plug ESD. IC Role / Device Role / Timing Role: Bidirectional clamp between VBUS and GND, and between CC1/CC2 and GND, responding within sub-nanosecond to limit fault voltage. Use Value: Survives ±15 kV contact ESD (IEC 61000-4-2) and clamps 20 V misinsertion to <9.2 V - prevents damage to USB PD controller and port multiplexer ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ5.0A-M3/52 | Unidirectional version; cathode-marked; forward voltage ≤3.5 V at 50 A; same VWM, VBR, PPPM, and package. | Required where DC bias polarity is fixed (e.g., 5 V supply rail protection) and reverse conduction must be blocked. | Select SMBJ5.0A-M3/52 only if circuit topology mandates unidirectional blocking - otherwise SMBJ5.0CA-M3/52 offers layout flexibility and symmetric surge handling. |
| SMCJ5.0CA | Larger SMC (DO-214AB) package; 1500 W PPPM; identical VWM/VBR/VC specs; higher IPPM (109 A); RθJA = 50 °C/W. | Suitable for higher-energy surge environments (e.g., AC mains input stages, motor drive I/O) where 600 W is insufficient. | Choose SMCJ5.0CA only when system-level surge testing requires >600 W rating - SMBJ5.0CA-M3/52 remains optimal for space-constrained 5 V data line protection. |
Compared with SMBJ5.0A-M3/52, SMBJ5.0CA-M3/52 eliminates polarity dependency and simplifies routing; compared with SMCJ5.0CA, it trades 2.5× surge capacity for 40% smaller PCB area and compatibility with fine-pitch automated assembly.
Availability
SMBJ5.0CA-M3/52 is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, telecom Ethernet ports, and consumer USB-C power delivery systems requiring stable component supply, halogen-free compliance, and rapid prototyping support.
Supply support for SMBJ5.0CA-M3/52 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, efficiency, and application-specific optimization.
The SMBJ series is engineered for high-reliability transient suppression in space-constrained, high-surge environments - targeting industrial automation, automotive electronics, and communications infrastructure where consistent clamping performance and AEC-Q101 readiness matter.
FAQ
What is the maximum clamping voltage of SMBJ5.0CA-M3/52 under a 600 W surge?
The SMBJ5.0CA-M3/52 clamps to 9.2 V at its rated peak pulse current of 65.2 A, corresponding to a 600 W 10/1000 µs waveform. This value is measured per Figure 1 in Vishay document 88392 and represents worst-case voltage seen by protected circuitry during full-rated surge events - critical for verifying downstream IC absolute maximum ratings.
Is SMBJ5.0CA-M3/52 suitable for automotive applications?
SMBJ5.0CA-M3/52 is halogen-free and RoHS-compliant but not AEC-Q101 qualified in this specific M3/52 configuration. For automotive use, select the HM3_X variant (e.g., SMBJ5.0CAHM3_B/H), which adds AEC-Q101 qualification while retaining identical electrical specs and SMB package - ensuring reliability in under-hood and chassis-mounted ECUs.
How does SMBJ5.0CA-M3/52 differ from SMBJ5.0A-M3/52?
SMBJ5.0CA-M3/52 is bidirectional with no polarity marking, enabling symmetric placement on AC-coupled or floating lines; SMBJ5.0A-M3/52 is unidirectional with cathode band, providing forward conduction blocking. Both share identical VWM (5.0 V), VBR (6.4–7.25 V), PPPM (600 W), and SMB package - choice depends solely on circuit polarity requirements.
What is the thermal resistance of SMBJ5.0CA-M3/52 in standard mounting conditions?
Under standard JEDEC test conditions (0.2" × 0.2" copper pads per terminal), SMBJ5.0CA-M3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead resistance (RθJL) of 20 °C/W. These values define safe power derating above 25 °C ambient and inform heatsinking decisions for repetitive surge scenarios.
Does SMBJ5.0CA-M3/52 meet IEC 61000-4-2 ESD immunity standards?
Yes - SMBJ5.0CA-M3/52 is rated for ±30 kV air discharge and ±30 kV contact discharge per IEC 61000-4-2, verified through standardized testing on Vishay's qualification lots. Its sub-nanosecond response and low clamping voltage ensure protected circuits remain functional after repeated ESD events without latch-up or parametric shift.
SMBJ5.0CA-M3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- 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-M3/52 FAQ
1.How can I place an order for SMBJ5.0CA-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ5.0CA-M3/52 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 SMBJ5.0CA-M3/52 reliable?
The price and inventory of SMBJ5.0CA-M3/52 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-M3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ5.0CA-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ5.0CA-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ5.0CA-M3/52?
SMBJ5.0CA-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ5.0CA-M3/52 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 SMBJ5.0CA-M3/52?
For technical support, including SMBJ5.0CA-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ5.0CA-M3/52 requirements.
6.How does Aetrix verify that SMBJ5.0CA-M3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ5.0CA-M3/52 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 SMBJ5.0CA-M3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ5.0CA-M3/52?
All SMBJ5.0CA-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ5.0CA-M3/52, 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 SMBJ5.0CA-M3/52 part is unused and in its original packaging.
Return procedure for SMBJ5.0CA-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ5.0CA-M3/52 Tags
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