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Vishay General Semiconductor - Diodes Division SMBJ5.0D-M3/I
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- Part No.:
- SMBJ5.0D-M3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ5.0D-M3/I.pdf
- Description:
- TVS DIODE 5VWM 9.1VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,726
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Product details
Overview
SMBJ5.0D-M3/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for primary overvoltage protection of DC power rails and signal lines. It features a 5.0 V stand-off voltage (VWM), 6.5–6.97 V breakdown voltage (VBR) at 10 mA, 600 W peak pulse power (10/1000 μs), clamping voltage of 9.1 V at 65.9 A, and ≤500 μA reverse leakage at VWM - deployed in consumer power adapters and industrial sensor interfaces.
For engineers reviewing the SMBJ5.0D-M3/I datasheet, SMBJ5.0D-M3/I pinout, SMBJ5.0D-M3/I application, or SMBJ5.0D-M3/I equivalent, this page delivers verified electrical parameters, polarity marking guidance, thermal derating behavior, bidirectional variant comparison, and OEM supply support for ESD/surge-critical designs.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, optimized for fast response (<1 ns) to transients induced by inductive switching or lightning surges. Its low incremental surge resistance and tight ±3.5 % VBR tolerance ensure consistent clamping across production lots.
Thermal performance is defined by RθJA = 125 °C/W (on minimum pad layout) and RθJM = 20 °C/W, supporting operation up to TJ = 150 °C. Power dissipation is rated at 1.0 W at TA = 25 °C and derates linearly above that temperature per Fig. 5.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - maximum continuous reverse operating voltage before significant conduction begins |
| VBR min/max | 6.50 V / 6.97 V at IT = 10 mA - tight breakdown window ensures predictable turn-on during transients |
| VC @ IPPM | 9.1 V at 65.9 A - clamping voltage limits downstream IC stress during 600 W surge events |
| PPPM | 600 W (10/1000 μs waveform) - defines single-pulse energy handling capability under standardized surge test |
| ID @ VWM | ≤500 μA - low leakage preserves efficiency in battery-powered or high-impedance circuits |
| TJ max | 150 °C - junction temperature limit enabling use in enclosed industrial enclosures without forced cooling |
| Package | SMB (DO-214AA) - surface-mount outline with 2.20 mm × 3.94 mm footprint and M3 halogen-free, RoHS-compliant finish |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case meeting UL 94 V-0; matte tin-plated leads compliant with J-STD-002 and JESD 22-B102; M3 suffix indicates halogen-free, RoHS-compliant, industrial-grade construction with JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to circuit ground or lower potential rail; current flows anode-to-cathode during clamping |
| Cathode (banded end) | High-side connection point | Marked with band; connects to protected line (e.g., +5 V rail); reverse-biased during normal operation |
Key Features
| Feature | Design Value |
|---|---|
| ±3.5 % VBR tolerance | Enables precise coordination with system overvoltage thresholds without margin stacking |
| 600 W peak pulse rating | Handles IEC 61000-4-5 Level 4 (4 kV) surge events on 5 V DC rails with margin |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow without preconditioning or dry-pack requirements |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes voltage overshoot during clamping, reducing risk of latch-up in downstream logic |
| Unidirectional polarity | Prevents unintended conduction on AC-coupled or bidirectional signal paths |
Applications
| USB Power Input Protection | Industrial Sensor Signal Line |
|---|---|
Use Scenario: Protects 5 V USB-powered peripherals from hot-swap transients and cable-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBUS and GND, clamping positive-going spikes before they reach USB controller IC. Use Value: 9.1 V clamping voltage ensures USB 2.0 PHY (max 6.8 V abs) remains within safe operating area during 65.9 A surge events. |
Use Scenario: Shields analog output lines (e.g., 4–20 mA transmitter) from field-wiring ESD and inductive kickback. IC Role / Device Role / Timing Role: Mounted at connector entry point, shunting transient energy to local ground before reaching precision op-amp or ADC input. Use Value: ≤500 μA leakage avoids loading high-impedance sensor outputs; 6.5–6.97 V VBR aligns with 5 V supply rail margins. |
| Consumer AC-DC Adapter Output | Automotive Body Control Module (BCM) Power Rail |
Use Scenario: Guards secondary-side 5 V DC output of wall adapters against load-dump and cross-regulation spikes. IC Role / Device Role / Timing Role: Placed directly at rectifier output capacitor, acting as last-line clamping element before downstream regulators. Use Value: 600 W PPPM sustains multiple repetitive surges per IEC 61000-4-5; SMB package enables automated placement near high-noise nodes. |
Use Scenario: Protects 5 V microcontroller supply in BCM modules exposed to ISO 7637-2 pulse 1/2a/5a transients. IC Role / Device Role / Timing Role: Unidirectional TVS referenced to chassis ground, absorbing negative-going transients on switched 5 V rail. Use Value: 150 °C max junction temperature supports under-hood ambient conditions; M3 halogen-free compliance meets automotive material specs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ5.0CD-M3/I | Bidirectional variant; symmetric VBR (6.5–6.97 V) and VC (9.1 V) in both polarities; no cathode band | Required for AC-coupled or floating signal lines (e.g., RS-485, CAN bus) where polarity reversal occurs | Select SMBJ5.0CD-M3/I only when protecting bidirectional signals; SMBJ5.0D-M3/I is preferred for DC rails with defined ground reference |
| SMAJ5.0A-M3/84A | Lower PPPM (400 W), higher VC (13.4 V at 30 A), SMA package (smaller footprint, higher RθJA = 150 °C/W) | Suitable for space-constrained, lower-energy environments (e.g., portable electronics); not recommended for industrial 600 W surge compliance | Choose SMAJ5.0A-M3/84A only if board area is critical and surge threat level is below IEC 61000-4-5 Level 3; SMBJ5.0D-M3/I provides superior clamping and thermal robustness |
Compared with SMBJ5.0CD-M3/I and SMAJ5.0A-M3/84A, the SMBJ5.0D-M3/I delivers optimal balance of 600 W surge capacity, 9.1 V clamping, and SMB thermal performance for unidirectional 5 V rail protection - making it the default choice for industrial and automotive power interface designs requiring repeatable, high-energy transient suppression.
Availability
SMBJ5.0D-M3/I is available at Aetrix Electronics and suitable for USB power delivery systems, industrial sensor interfaces, AC-DC adapter outputs, and automotive body control module power rails requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBJ5.0D-M3/I 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, power handling, and industrial-grade qualification.
The SMBJ series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh environments - targeting industrial automation, automotive subsystems, and telecom infrastructure where surge immunity is mission-critical.
FAQ
What is the polarity configuration of SMBJ5.0D-M3/I?
The SMBJ5.0D-M3/I is a unidirectional TVS diode with cathode indicated by a band on the SMB package body. During normal operation, it blocks current flow from cathode to anode up to 5.0 V; when a positive transient exceeds ~6.5 V, it conducts from anode to cathode to clamp the voltage. This configuration prevents conduction on negative-going transients unless paired with complementary devices.
Does SMBJ5.0D-M3/I meet automotive AEC-Q200 requirements?
No - SMBJ5.0D-M3/I is qualified as industrial grade (M3 suffix) and meets JESD 201 Class 2 whisker resistance and MSL Level 1 reflow, but it is not AEC-Q200 stress-tested or certified. For automotive applications, Vishay offers the AEC-Q200-qualified SMBJ5.0A-Q series; SMBJ5.0D-M3/I is intended for industrial, consumer, and telecom equipment where extended temperature and surge performance are prioritized over automotive qualification.
What is the maximum clamping voltage of SMBJ5.0D-M3/I under surge conditions?
The SMBJ5.0D-M3/I has a maximum clamping voltage (VC) of 9.1 V at its rated peak pulse current (IPPM) of 65.9 A, tested with a 10/1000 μs waveform. This value is guaranteed per datasheet Table 1 and represents the upper limit of voltage seen by downstream circuitry during a full 600 W surge event - critical for ensuring compatibility with 5 V logic families and USB PHYs.
Can SMBJ5.0D-M3/I be used in place of SMBJ5.0CD-M3/I?
No - SMBJ5.0D-M3/I is unidirectional and requires correct polarity orientation (cathode to protected line), while SMBJ5.0CD-M3/I is bidirectional and symmetrical in both directions. Substituting SMBJ5.0D-M3/I for SMBJ5.0CD-M3/I on AC-coupled or floating lines will result in improper clamping during negative transients and possible device failure. They serve distinct circuit roles and are not interchangeable without schematic and layout review.
What PCB pad layout is recommended for optimal thermal performance of SMBJ5.0D-M3/I?
Vishay specifies a minimum copper pad layout of 5.0 mm × 5.0 mm per terminal for SMBJ5.0D-M3/I to achieve the rated 1.0 W power dissipation at TA = 25 °C. Smaller pads increase thermal resistance (RθJA up to 125 °C/W), reducing safe operating area. The datasheet Figure 5 shows derating curves - for example, at 70 °C ambient, maximum continuous power drops to ~0.6 W with minimum pads, necessitating layout optimization for high-power or high-temperature deployments.
SMBJ5.0D-M3/I 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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V
- Voltage - Breakdown (Min):
- 6.5V
- Voltage - Clamping (Max) @ Ipp:
- 9.1V
- Current - Peak Pulse (10/1000µs):
- 65.9A
- 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)
SMBJ5.0D-M3/I FAQ
1.How can I place an order for SMBJ5.0D-M3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ5.0D-M3/I 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 SMBJ5.0D-M3/I reliable?
The price and inventory of SMBJ5.0D-M3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ5.0D-M3/I is usually 5 days.
3.What payment methods are accepted for SMBJ5.0D-M3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ5.0D-M3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ5.0D-M3/I?
SMBJ5.0D-M3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ5.0D-M3/I 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 SMBJ5.0D-M3/I?
For technical support, including SMBJ5.0D-M3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ5.0D-M3/I requirements.
6.How does Aetrix verify that SMBJ5.0D-M3/I is sourced from the original manufacturer or authorized distributors?
All SMBJ5.0D-M3/I 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 SMBJ5.0D-M3/I meets industry standards.
7.What is the process for return or replacement of SMBJ5.0D-M3/I?
All SMBJ5.0D-M3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ5.0D-M3/I, 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 SMBJ5.0D-M3/I part is unused and in its original packaging.
Return procedure for SMBJ5.0D-M3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ5.0D-M3/I 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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