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Vishay General Semiconductor - Diodes Division SMBJ5.0CD-M3/H
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- Part No.:
- SMBJ5.0CD-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ5.0CD-M3/H.pdf
- Description:
- TVS DIODE 5VWM 9.1VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,638
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Product details
Overview
SMBJ5.0CD-M3/H 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 ±3.5 % VBR tolerance - used to protect USB, sensor I/O, and industrial control inputs.
For engineers reviewing the SMBJ5.0CD-M3/H datasheet, SMBJ5.0CD-M3/H pinout, SMBJ5.0CD-M3/H application, or SMBJ5.0CD-M3/H equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VWM ≈ 1.82), M3 halogen-free RoHS-compliant construction, J-STD-020 MSL Level 1 rating, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a voltage-clamped crowbar during transient events: when reverse voltage exceeds VBR (6.5–6.97 V), it avalanches to limit downstream voltage to ≤9.1 V at 65.9 A. Its bidirectional symmetry enables protection of AC-coupled or differential lines without polarity concerns.
Thermal performance is defined by RθJA = 125 °C/W (on minimum pad) and RθJM = 20 °C/W, supporting 1.0 W steady-state dissipation at TA = 25 °C and 5.0 W at TM = 50 °C. Junction temperature is rated from –55 °C to +150 °C, with surge current derating above 25 °C per Fig. 2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - maximum continuous reverse operating voltage before conduction begins |
| VBR min/max | 6.5 V / 6.97 V at 10 mA - tight ±3.5 % tolerance ensures predictable turn-on across production lots |
| VC @ IPPM | 9.1 V at 65.9 A - clamps transients to safe levels for 3.3 V/5 V logic interfaces |
| PPPM | 600 W (10/1000 μs waveform) - handles IEC 61000-4-5 Level 4 surges (4 kV line-earth) |
| ID @ VWM | 500 μA - low leakage preserves signal integrity and battery life in always-on circuits |
| Package | SMB (DO-214AA) - industry-standard 2-pin SMD footprint with 2.20 mm height and 5.59 mm length |
| MSL Level | Level 1 (260 °C peak reflow) - supports single-pass lead-free assembly without moisture sensitivity concerns |
Pinout & Package
Two-terminal bidirectional device in SMB (DO-214AA) package; no polarity marking (no cathode band). Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102, with M3 suffix meeting JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals function identically - voltage clamping occurs regardless of polarity or direction of surge |
| Case (exposed metal slug) | Thermal conduction path | Integral heat-spreading slug improves thermal resistance to PCB copper; requires minimum 5.0 mm × 5.0 mm pad for rated PD |
Key Features
| Feature | Design Value |
|---|---|
| ±3.5 % VBR tolerance | Enables precise overvoltage threshold setting without margin stacking in 5 V rail protection |
| 600 W peak pulse power | Meets IEC 61000-4-5 surge immunity requirements for industrial and telecom equipment |
| Bidirectional operation (CD suffix) | Protects AC signals, RS-485, CAN, and Ethernet PHYs without external polarity management |
| Low 9.1 V clamping at 65.9 A | Clamping ratio VC/VWM = 1.82 ensures downstream ICs see <2× nominal supply during worst-case surge |
| Halogen-free, RoHS, M3 grade | Complies with IPC-1752A material declarations and supports industrial-grade reliability under thermal cycling |
Applications
| USB 2.0 Data Lines | Industrial Sensor Inputs |
|---|---|
Use Scenario: Protecting D+ and D– lines against ESD (IEC 61000-4-2 ±8 kV contact) and cable discharge events in embedded host/peripheral designs. IC Role / Device Role: Bidirectional TVS placed directly at connector, shunting transients before reaching USB transceiver. Use Value: 9.1 V clamping prevents damage to 3.3 V tolerant PHYs while maintaining signal integrity up to 480 Mbps. | Use Scenario: Safeguarding 4–20 mA analog input channels and digital I/O of PLC modules exposed to field wiring surges. IC Role / Device Role: Primary front-end clamp on terminal blocks or signal conditioning PCBs. Use Value: 600 W rating withstands repetitive inductive switching transients (e.g., solenoid de-energization) without degradation. |
| Automotive Body Control Modules | Telecom Line Interface Cards |
Use Scenario: Protecting LIN bus or switched 12 V power rails in BCMs subjected to load dump and ISO 7637-2 pulses. IC Role / Device Role: Secondary surge suppression stage after primary GDT or polymer PTC, located near microcontroller GPIOs. Use Value: Tight VBR tolerance ensures consistent triggering across temperature (–40 °C to +125 °C junction). | Use Scenario: Shielding RJ-45 Ethernet PHYs and PoE injectors from lightning-induced surges on unshielded twisted-pair cabling. IC Role / Device Role: Common-mode TVS pair on differential pairs, referenced to chassis ground. Use Value: Symmetrical bidirectional response maintains impedance balance and minimizes common-mode distortion during clamping. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ5.0CA-M3/5B | Same VWM/VBR/PPPM specs; different marking code and reel packaging (5B vs H); identical electrical and thermal performance | No functional difference - both are bidirectional SMBJ5.0x variants qualified for same use cases | Select based on distributor inventory and tape-and-reel configuration preference (750 vs 3200 units/reel) |
| 1.5SMC5.0CA | Higher package thermal resistance (RθJA = 150 °C/W), larger SMC (DO-214AB) footprint, same VWM/VBR but 1.5 kW PPPM rating | Used where higher surge energy handling is required and board space allows larger 7.11 mm × 6.22 mm package | Choose SMBJ5.0CD-M3/H for space-constrained SMT layouts; select 1.5SMC5.0CA only if >600 W pulse power is mandated |
Compared with SMBJ5.0CA-M3/5B, SMBJ5.0CD-M3/H offers identical protection performance in the same SMB footprint but with M3 halogen-free compliance and H-tape packaging. Against 1.5SMC5.0CA, it trades higher surge rating for 30 % smaller board area and lower thermal resistance - optimal for compact industrial and automotive modules.
Availability
SMBJ5.0CD-M3/H is available at Aetrix Electronics and suitable for USB interface protection, industrial sensor input hardening, and automotive body control module surge suppression requiring stable component supply and full MSL Level 1 process compatibility.
Supply support for SMBJ5.0CD-M3/H 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 industrial and automotive applications.
The SMBJ series is engineered for robust transient suppression in space-constrained surface-mount designs, targeting IEC/EN 61000-4-x compliant systems where fast response, low clamping, and repeatable avalanche behavior are critical.
FAQ
What is the clamping voltage of SMBJ5.0CD-M3/H at its rated peak pulse current?
The SMBJ5.0CD-M3/H has a maximum clamping voltage (VC) of 9.1 V at its peak pulse current (IPPM) of 65.9 A, measured using the standard 10/1000 μs double-exponential surge waveform. This value is guaranteed across the full operating temperature range and confirms effective protection for 5 V logic interfaces without overstressing downstream components.
Is SMBJ5.0CD-M3/H suitable for protecting bidirectional communication lines like RS-485 or CAN?
Yes, SMBJ5.0CD-M3/H is explicitly designed for bidirectional applications, as indicated by the "CD" suffix. Its symmetrical breakdown characteristic ensures identical clamping behavior for positive and negative transients, making it ideal for differential buses such as RS-485, CAN, and LVDS where polarity-independent surge suppression is required.
Does SMBJ5.0CD-M3/H meet lead-free reflow requirements?
Yes, SMBJ5.0CD-M3/H is rated for MSL Level 1 per J-STD-020 with a maximum peak reflow temperature of 260 °C, fully compatible with standard lead-free soldering processes. The M3 suffix confirms halogen-free, RoHS-compliant construction and JESD 201 Class 2 whisker resistance - essential for long-term reliability in industrial assemblies.
How does the thermal performance of SMBJ5.0CD-M3/H compare between minimum pad layout and infinite heatsink conditions?
SMBJ5.0CD-M3/H delivers 1.0 W steady-state power dissipation at TA = 25 °C on minimum recommended pad layout (RθJA = 125 °C/W), and 5.0 W at TM = 50 °C when mounted on an infinite heatsink (RθJM = 20 °C/W). Designers must use the 5.0 mm × 5.0 mm copper pad layout to achieve rated pulse power and avoid thermal runaway during repetitive surges.
What is the reverse leakage current specification for SMBJ5.0CD-M3/H at its stand-off voltage?
At the 5.0 V stand-off voltage (VWM), SMBJ5.0CD-M3/H exhibits a maximum reverse leakage current (ID) of 500 μA at TA = 25 °C. This low leakage preserves signal fidelity in high-impedance sensor interfaces and minimizes quiescent power loss in battery-powered systems without compromising transient response speed.
SMBJ5.0CD-M3/H 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/H FAQ
1.How can I place an order for SMBJ5.0CD-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ5.0CD-M3/H 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/H reliable?
The price and inventory of SMBJ5.0CD-M3/H 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/H is usually 5 days.
3.What payment methods are accepted for SMBJ5.0CD-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ5.0CD-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ5.0CD-M3/H?
SMBJ5.0CD-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ5.0CD-M3/H 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/H?
For technical support, including SMBJ5.0CD-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ5.0CD-M3/H requirements.
6.How does Aetrix verify that SMBJ5.0CD-M3/H is sourced from the original manufacturer or authorized distributors?
All SMBJ5.0CD-M3/H 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/H meets industry standards.
7.What is the process for return or replacement of SMBJ5.0CD-M3/H?
All SMBJ5.0CD-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ5.0CD-M3/H, 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/H part is unused and in its original packaging.
Return procedure for SMBJ5.0CD-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ5.0CD-M3/H Tags
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Diodes Incorporated
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