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Vishay General Semiconductor - Diodes Division SMBJ5.0CD-M3/I
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- Part No.:
- SMBJ5.0CD-M3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ5.0CD-M3/I.pdf
- Description:
- TVS DIODE 5VWM 9.1VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,430
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Product details
Overview
SMBJ5.0CD-M3/I from Vishay General Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping ESD and surge transients on signal/power lines. It features 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), 9.1 V maximum clamping voltage (VC) at 65.9 A IPPM, and operates across –55 °C to +150 °C junction temperature.
For engineers reviewing the SMBJ5.0CD-M3/I datasheet, SMBJ5.0CD-M3/I pinout, SMBJ5.0CD-M3/I application, or SMBJ5.0CD-M3/I equivalent, this page delivers verified electrical specs, bidirectional clamping behavior, thermal derating curves, M3-grade halogen-free RoHS compliance, and real-world protection use cases for sensor interfaces, USB lines, and industrial I/O circuits.
Technical Context
This bidirectional TVS diode functions as a voltage-clamped shunt protector with symmetrical avalanche conduction in both polarities. Its low 9.1 V clamping voltage at 65.9 A ensures robust overvoltage suppression during 10/1000 μs surges while maintaining sub-500 nA leakage at 5.0 V.
The device uses silicon avalanche junction technology with ±3.5 % VBR tolerance, meets UL 497B recognition (QVGQ2), and is rated for MSL Level 1 reflow (260 °C peak). Thermal resistance is 125 °C/W (junction-to-ambient, minimum pad layout) and 20 °C/W (junction-to-mount).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - Maximum reverse stand-off voltage before significant conduction; defines safe operating window for protected circuit. |
| VBR (min/max) | 6.5 V / 6.97 V at 10 mA - Tight ±3.5 % breakdown tolerance ensures predictable turn-on across production lots. |
| VC @ IPPM | 9.1 V at 65.9 A - Clamping voltage under 600 W 10/1000 μs surge; limits stress on downstream ICs like microcontrollers or transceivers. |
| PPPM | 600 W - Peak pulse power handling per single 10/1000 μs transient; supports IEC 61000-4-5 Level 4 surge immunity. |
| ID @ VWM | <500 μA - Reverse leakage current at rated stand-off voltage; minimizes standby power loss in battery-powered systems. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in high-ambient industrial or automotive under-hood environments. |
| Package | SMB (DO-214AA) - Surface-mount outline with 5.59 mm × 4.06 mm footprint; compatible with automated pick-and-place and reflow soldering. |
Pinout & Package
Package: SMB (DO-214AA), bidirectional configuration with no polarity marking (no cathode band). Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102, qualified for JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional avalanche junction | Both terminals function identically; conducts in either direction once VBR is exceeded - eliminates orientation concerns during placement. |
| Cathode end (N/A) | No polarity marking | Absence of cathode band confirms bidirectional construction; simplifies PCB layout and reduces assembly errors. |
Key Features
| Feature | Design Value |
|---|---|
| ±3.5 % VBR tolerance | Enables precise, repeatable clamping threshold across manufacturing batches - critical for protecting narrow-voltage-margin ICs (e.g., 3.3 V logic). |
| 600 W peak pulse power (10/1000 μs) | Meets IEC 61000-4-5 surge immunity requirements up to Level 4 (4 kV line-to-line, 2 kV line-to-ground) without external series impedance. |
| Low 9.1 V clamping voltage | Keeps protected node voltage below 10 V during worst-case surge - safeguards 5 V-tolerant inputs on USB PHYs, RS-485 transceivers, and ADC front-ends. |
| M3 suffix qualification | Halogens-free, RoHS-compliant, industrial-grade construction with JESD 201 Class 2 whisker resistance - suitable for long-life, high-reliability deployments. |
| MSL Level 1 rating | Supports standard SMT reflow profiles up to 260 °C peak without preconditioning - eliminates moisture sensitivity handling overhead in production. |
Applications
| Industrial Sensor Interface Protection | USB 2.0 Data Line ESD Suppression |
|---|---|
Use Scenario: Protecting analog output lines (4–20 mA, 0–10 V) and digital I/O of PLC modules exposed to field-induced transients in factory automation. IC Role / Device Role / Timing Role: Shunt clamping element placed directly at connector entry point to divert surge energy before reaching op-amps, isolators, or microcontroller GPIOs. Use Value: 9.1 V clamping ensures downstream 5 V rail and 3.3 V logic remain within absolute maximum ratings during 1 kV/500 A surge events. |
Use Scenario: Safeguarding D+ and D− lines of embedded USB host/device ports against contact ESD (IEC 61000-4-2 ±8 kV) and cable discharge events. IC Role / Device Role / Timing Role: Bidirectional TVS placed differential across data pair to clamp common-mode and differential-mode transients without disrupting 480 Mbps signaling integrity. Use Value: Sub-500 μA leakage and low capacitance preserve signal rise/fall times; symmetric clamping avoids DC bias shift on differential bus. |
| Telecom Line Card Surge Protection | Automotive Body Control Module I/O Protection |
Use Scenario: Front-end protection of Ethernet PHYs, PoE injectors, and DSL line drivers subjected to lightning-induced surges on twisted-pair cabling. IC Role / Device Role / Timing Role: Primary shunt suppressor mounted at RJ-45 jack, coordinated with upstream GDT or PTC for multi-stage protection architecture. Use Value: 600 W rating handles repetitive 10/1000 μs surges per Telcordia GR-1089-CORE; 150 °C TJ rating supports uncooled chassis mounting. |
Use Scenario: Guarding LIN bus pins, switch inputs, and LED driver outputs in BCMs exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Fast-response clamping device placed adjacent to connector to limit induced transients before they propagate into MCU or driver ICs. Use Value: 6.5–6.97 V VBR aligns with 5 V supply rails; bidirectional operation accommodates negative-going spikes from inductive loads without polarity constraints. |
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-M3/5A | Same SMB package, identical VWM/VBR/VC specs, but M3/5A tape-and-reel packaging (5,000 pcs/reel vs. 3,200 pcs/reel for -M3/I). | No functional difference; suited for higher-volume SMT lines requiring larger reels. | Select SMBJ5.0CA-M3/5A when reel quantity and feeder compatibility drive procurement - electrically identical to SMBJ5.0CD-M3/I. |
| P6SMB5.0C | Same 5.0 V VWM, 6.4–7.0 V VBR range, but lower 600 W PPPM rating derated above 25 °C; RθJA = 135 °C/W (vs. 125 °C/W). | Marginally lower thermal performance; may require larger copper pads in high-ambient designs. | Choose P6SMB5.0C only if legacy BOM alignment or distributor stock availability outweighs minor thermal margin reduction. |
Compared with SMBJ5.0CD-M3/I, SMBJ5.0CA-M3/5A offers identical protection performance with different packaging volume, while P6SMB5.0C trades slightly higher thermal resistance for broader distributor availability - neither is pin-compatible drop-in replacement due to differing M3 suffix implementation and JEDEC registration.
Availability
SMBJ5.0CD-M3/I is available at Aetrix Electronics and suitable for industrial sensor interfaces, USB 2.0 data line protection, and telecom line card surge suppression requiring stable component supply, long-term lifecycle support, and M3-grade reliability certification.
Supply support for SMBJ5.0CD-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, rectifiers, MOSFETs, and protection devices with emphasis on high-reliability, high-efficiency, and industry-standard compliance.
The SMBJ series was engineered specifically for robust, surface-mount transient suppression in space-constrained industrial, telecom, and automotive applications - delivering tight VBR tolerance, high surge capability, and MSL Level 1 manufacturability in the SMB footprint.
FAQ
What does the "CD" suffix indicate in SMBJ5.0CD-M3/I?
The "CD" suffix denotes a bidirectional configuration - meaning SMBJ5.0CD-M3/I conducts symmetrically in both directions above its breakdown voltage, with no cathode marking on the package. This differs from unidirectional "D" variants (e.g., SMBJ5.0D-M3/I), which have a cathode band and conduct only anode-to-cathode. The CD version is used where polarity of transient events cannot be guaranteed, such as on AC-coupled signal lines or differential buses.
Is SMBJ5.0CD-M3/I compliant with RoHS and halogen-free standards?
Yes, SMBJ5.0CD-M3/I carries the "M3" suffix, which certifies it as halogen-free, RoHS-compliant, and industrial-grade per Vishay's material categorization standard. It meets UL 94 V-0 flammability requirements for the molding compound and passes JESD 201 Class 2 whisker testing on its matte tin-plated terminals - confirming suitability for environmentally regulated and high-reliability applications.
What is the maximum clamping voltage of SMBJ5.0CD-M3/I under surge conditions?
The maximum clamping voltage (VC) of SMBJ5.0CD-M3/I is 9.1 V at a peak pulse current (IPPM) of 65.9 A, tested with a 10/1000 μs waveform. This value represents the upper limit of voltage seen by the protected circuit during worst-case surge events - ensuring downstream 5 V logic and mixed-signal components remain within safe operating limits.
Can SMBJ5.0CD-M3/I be used in place of a unidirectional TVS like SMBJ5.0D-M3/I?
No - SMBJ5.0CD-M3/I is bidirectional and lacks polarity marking, whereas SMBJ5.0D-M3/I is unidirectional with a defined cathode band. Substituting one for the other risks incorrect circuit behavior: using SMBJ5.0CD-M3/I in a DC-biased unidirectional path may allow unwanted conduction during normal operation, while using SMBJ5.0D-M3/I in a bidirectional AC path leaves one polarity unprotected. Always match device polarity to system signal topology.
What is the thermal resistance and power derating behavior of SMBJ5.0CD-M3/I?
SMBJ5.0CD-M3/I has a typical junction-to-ambient thermal resistance (RθJA) of 125 °C/W when mounted on the minimum recommended pad layout. Its steady-state power dissipation drops from 1.0 W at 25 °C ambient to zero at 150 °C, following a linear derating curve. For continuous operation above 25 °C, power must be reduced by 8 mW/°C - critical for thermally constrained enclosures or high-density PCB layouts.
SMBJ5.0CD-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:
- -
- Bidirectional Channels:
- 1
- 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)
SMBJ5.0CD-M3/I FAQ
1.How can I place an order for SMBJ5.0CD-M3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ5.0CD-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 SMBJ5.0CD-M3/I reliable?
The price and inventory of SMBJ5.0CD-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 SMBJ5.0CD-M3/I is usually 5 days.
3.What payment methods are accepted for SMBJ5.0CD-M3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ5.0CD-M3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ5.0CD-M3/I?
SMBJ5.0CD-M3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ5.0CD-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 SMBJ5.0CD-M3/I?
For technical support, including SMBJ5.0CD-M3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ5.0CD-M3/I requirements.
6.How does Aetrix verify that SMBJ5.0CD-M3/I is sourced from the original manufacturer or authorized distributors?
All SMBJ5.0CD-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 SMBJ5.0CD-M3/I meets industry standards.
7.What is the process for return or replacement of SMBJ5.0CD-M3/I?
All SMBJ5.0CD-M3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ5.0CD-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 SMBJ5.0CD-M3/I part is unused and in its original packaging.
Return procedure for SMBJ5.0CD-M3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ5.0CD-M3/I Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
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