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Vishay General Semiconductor - Diodes Division SMBJ5.0D-M3/H
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- Part No.:
- SMBJ5.0D-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ5.0D-M3/H.pdf
- Description:
- TVS DIODE 5VWM 9.1VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,121
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Product details
Overview
SMBJ5.0D-M3/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in the SMB (DO-214AA) package, designed for robust overvoltage protection of sensitive electronics. 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 ±3.5 % VBR tolerance - ideal for protecting 5 V logic rails, USB interfaces, and I/O lines in industrial controllers.
For engineers reviewing the SMBJ5.0D-M3/H datasheet, SMBJ5.0D-M3/H pinout, SMBJ5.0D-M3/H application, or SMBJ5.0D-M3/H equivalent, key selection criteria include its tight VBR tolerance, low clamping ratio (VC/VWM = 1.82), M3 halogen-free/RoHS-compliant industrial-grade construction, J-STD-020 MSL Level 1 rating, and compatibility with automated SMT placement on standard PCB pad layouts.
Technical Context
The SMBJ5.0D-M3/H operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its specified VBR range. Its clamping action limits transient-induced voltages to ≤9.1 V under 65.9 A surge current, enabling reliable protection of downstream 5 V ICs without latch-up or damage.
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 derating begins above TA = 25 °C, with PD dropping from 1.0 W at ambient to 5.0 W at case temperature TM = 50 °C - requiring thermal-aware PCB layout for sustained surge duty.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - maximum continuous reverse operating voltage before conduction; matches standard 5 V supply rails. |
| 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 - clamping voltage during 600 W 10/1000 μs surge; provides safe margin below 12 V logic thresholds. |
| PPPM | 600 W - peak pulse power handling per 10/1000 μs waveform; supports common IEC 61000-4-5 surge immunity requirements. |
| ID @ VWM | 500 μA - low leakage at stand-off voltage minimizes standby power loss and avoids false triggering. |
| Package | SMB (DO-214AA) - industry-standard surface-mount outline with 2.20 mm height and 5.59 mm length; compatible with JEDEC MS-012. |
Pinout & Package
Package: SMB (DO-214AA), unidirectional configuration with cathode band marking on one end. Matte tin-plated leads meet J-STD-002 solderability and JESD 22-B102 whisker resistance (Class 2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to ground or lower-potential node in unidirectional TVS configuration. |
| Cathode (banded end) | Reverse-biased protection terminal | Connected to protected line (e.g., 5 V rail); conducts during overvoltage events to clamp to VC. |
Key Features
| Feature | Design Value |
|---|---|
| ±3.5 % VBR tolerance | Ensures consistent clamping threshold across manufacturing batches, reducing design margin uncertainty. |
| 600 W peak pulse power (10/1000 μs) | Meets IEC 61000-4-5 Level 3 (1 kV line-to-line, 2 kV line-to-ground) surge test requirements. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast transients, improving protection fidelity for sub-100 ns spikes. |
| MSL Level 1 (260 °C peak reflow) | Supports single-pass lead-free reflow without moisture-related delamination or popcorn failure. |
Applications
| Industrial PLC I/O Protection | USB 2.0 Data Line Protection |
|---|---|
Use Scenario: Protecting digital input/output channels in programmable logic controllers exposed to relay coil flyback and ESD from field wiring. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and ground to shunt inductive kickback and contact discharge energy. Use Value: Clamps transients to ≤9.1 V within nanoseconds, preventing damage to 5 V microcontroller GPIOs and optocouplers while maintaining signal integrity. | Use Scenario: Safeguarding D+ and D− lines of USB 2.0 ports against ESD events per IEC 61000-4-2 ±15 kV air/±8 kV contact discharge. IC Role / Device Role / Timing Role: Low-capacitance TVS connected in parallel to differential data pair, referenced to ground. Use Value: Sub-100 pF junction capacitance (typ.) avoids signal distortion at 480 Mbps; 9.1 V clamping prevents PHY latch-up during ESD strikes. |
| Automotive Body Control Module | Consumer Appliance Power Supply Input |
Use Scenario: Protecting LIN bus transceivers and sensor inputs in body control modules subjected to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS on 5 V sensor supply rail and LIN signal line to absorb coupled surges. Use Value: Withstands repetitive 600 W surges at 0.01 % duty cycle; 150 °C max junction temperature supports under-hood deployment. | Use Scenario: Secondary-side overvoltage suppression on 5 V standby rails in AC-DC adapters for smart home devices. IC Role / Device Role / Timing Role: Standoff-rated TVS placed after rectification to limit transient propagation to downstream SMPS controllers and memory. Use Value: 500 μA max leakage at 5 V avoids excessive no-load current draw; M3 halogen-free construction meets RoHS and IEC 61249-2-21 compliance. |
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-M3/5B | Same VWM (5.0 V), VBR (6.5–6.97 V), and PPPM (600 W); differs in packaging (7" tape/reel vs. H-code carrier). | No functional difference; identical electrical and thermal specs; same SMB package and M3 qualification. | Select SMBJ5.0A-M3/5B only if alternate reel format or distributor-specific part number is required. |
| P6SMB5.0A | Same VWM (5.0 V) and SMB package, but lower PPPM (600 W same), wider VBR tolerance (±5 %), and non-M3 qualification (standard RoHS). | Lacks M3 whisker resistance and J-STD-020 MSL Level 1 assurance; suitable for commercial-grade, non-industrial designs. | Choose P6SMB5.0A only for cost-sensitive, non-industrial applications where M3 reliability and high-reliability soldering are not mandated. |
Compared with SMBJ5.0D-M3/H, SMBJ5.0A-M3/5B offers identical protection performance in an alternate tape-and-reel configuration, while P6SMB5.0A provides baseline 5 V TVS capability without industrial-grade process controls - making SMBJ5.0D-M3/H the preferred choice for automotive, industrial, and high-reliability embedded systems requiring guaranteed MSL Level 1 and whisker-resistant terminations.
Availability
SMBJ5.0D-M3/H is available at Aetrix Electronics and suitable for industrial PLC I/O protection, USB 2.0 interface hardening, and automotive body control module designs requiring stable component supply, long-term lifecycle support, and traceable industrial-grade sourcing.
Supply support for SMBJ5.0D-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 reliability, precision, and application-specific optimization.
The SMBJ series is engineered for high-energy transient suppression in harsh environments, targeting industrial automation, automotive electronics, and telecom infrastructure where robustness, tight parametric control, and long-term stability are critical.
FAQ
What is the clamping voltage of SMBJ5.0D-M3/H and how does it protect downstream circuits?
The SMBJ5.0D-M3/H has a maximum clamping voltage (VC) of 9.1 V at 65.9 A peak pulse current (10/1000 μs). This means that during a transient event, the device limits the voltage seen by downstream components to ≤9.1 V - well below typical 12 V logic damage thresholds and providing a safe margin for 5 V ICs. Its fast response time and low dynamic impedance ensure effective energy diversion before sensitive circuitry is stressed.
Is SMBJ5.0D-M3/H suitable for bidirectional signal lines like RS-485 or CAN?
No, SMBJ5.0D-M3/H is a unidirectional TVS diode, indicated by the "D" suffix and cathode band marking. For bidirectional applications such as RS-485 or CAN bus lines, Vishay's SMBJ5.0CD-M3/H (with "CD" suffix) must be used instead, as it provides symmetrical clamping in both polarities and lacks a polarity band.
What does the "M3/H" suffix mean in SMBJ5.0D-M3/H?
The "M3" suffix denotes halogen-free, RoHS-compliant, industrial-grade construction with matte tin-plated leads qualified to JESD 201 Class 2 whisker resistance and J-STD-020 MSL Level 1 (260 °C peak reflow). The "H" indicates packaging in 7" diameter plastic tape and reel, with 750 units per reel - optimized for high-volume SMT assembly.
How does SMBJ5.0D-M3/H compare to SMAJ5.0A in terms of surge handling?
SMBJ5.0D-M3/H delivers 600 W peak pulse power (10/1000 μs) in the larger SMB package, whereas SMAJ5.0A (SMA/DO-214AC) is rated for 400 W in the smaller outline. The SMBJ's higher PPPM, lower RθJA (125 °C/W vs. ~150 °C/W for SMAJ), and tighter VBR tolerance make it better suited for demanding industrial surges where thermal margin and precision clamping are critical.
Can SMBJ5.0D-M3/H be used in place of a Zener diode for overvoltage protection?
Yes, but with important distinctions: SMBJ5.0D-M3/H is optimized for high-energy transient suppression (600 W surges), not steady-state regulation. Unlike Zener diodes, it exhibits low leakage (<500 μA) at VWM = 5.0 V and clamps sharply above VBR - making it superior for surge protection. However, it is not intended for continuous voltage regulation or precision reference applications.
SMBJ5.0D-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:
- 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/H FAQ
1.How can I place an order for SMBJ5.0D-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ5.0D-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 SMBJ5.0D-M3/H reliable?
The price and inventory of SMBJ5.0D-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 SMBJ5.0D-M3/H is usually 5 days.
3.What payment methods are accepted for SMBJ5.0D-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ5.0D-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ5.0D-M3/H?
SMBJ5.0D-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ5.0D-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 SMBJ5.0D-M3/H?
For technical support, including SMBJ5.0D-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ5.0D-M3/H requirements.
6.How does Aetrix verify that SMBJ5.0D-M3/H is sourced from the original manufacturer or authorized distributors?
All SMBJ5.0D-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 SMBJ5.0D-M3/H meets industry standards.
7.What is the process for return or replacement of SMBJ5.0D-M3/H?
All SMBJ5.0D-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ5.0D-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 SMBJ5.0D-M3/H part is unused and in its original packaging.
Return procedure for SMBJ5.0D-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ5.0D-M3/H Tags
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