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Vishay General Semiconductor - Diodes Division SMBJ54CA-M3/52
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- Part No.:
- SMBJ54CA-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ54CA-M3/52.pdf
- Description:
- TVS DIODE 54VWM 87.1VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,546
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Product details
Overview
SMBJ54CA-M3/52 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for robust overvoltage protection of sensitive electronics. It features a 54 V standoff voltage (VWM), 60.0–66.3 V breakdown voltage (VBR) at 1 mA, 600 W peak pulse power (10/1000 µs), clamping voltage of 87.1 V at 6.9 A, and operates across –55 °C to +150 °C junction temperature range.
For engineers reviewing the SMBJ54CA-M3/52 datasheet, SMBJ54CA-M3/52 pinout, SMBJ54CA-M3/52 application, or SMBJ54CA-M3/52 equivalent, key selection considerations include bidirectional surge suppression capability, low clamping ratio (VC/VWM ≈ 1.61), halogen-free RoHS-compliant construction (M3 suffix), and suitability for automotive-grade designs when paired with AEC-Q101 qualified variants.
Technical Context
This TVS diode employs a glass-passivated silicon junction optimized for fast response (<1 ps) to transient events such as ESD, lightning-induced surges, and inductive switching spikes. Its bidirectional architecture enables symmetrical clamping in both polarities without requiring polarity-aware PCB layout.
The device delivers 600 W peak pulse power handling under standardized 10/1000 µs waveform conditions, with thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), enabling reliable operation on standard 0.2" × 0.2" copper pads per terminal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 54 V - Maximum continuous reverse operating voltage before conduction begins; defines safe signal line operating margin. |
| VBR (min/max) | 60.0 V / 66.3 V at 1 mA - Breakdown threshold range; ensures consistent clamping onset across production lots. |
| VC @ IPPM | 87.1 V at 6.9 A - Clamped voltage during 600 W transient; determines maximum stress imposed on protected IC or MOSFET. |
| PPPM | 600 W - Peak pulse power rating (10/1000 µs); quantifies single-event surge energy absorption capacity. |
| IPPM | 6.9 A - Corresponding peak pulse current at VC; used to size series impedance and verify PCB trace current handling. |
| TJ max. | +150 °C - Maximum junction temperature; supports operation in under-hood automotive or industrial high-temp environments. |
| Package | SMB (DO-214AA) - Surface-mount outline with 5.59 mm × 4.06 mm footprint; compatible with automated pick-and-place and reflow. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, MSL Level 1 (JEDEC J-STD-020), lead-free and halogen-free (M3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (Anode) | Transient current return path (bidirectional) | No polarity marking; terminals are symmetric-either end serves as cathode or anode depending on transient polarity. |
| Anode (Cathode) | Transient current return path (bidirectional) | Identical function to opposite terminal; bidirectional conduction eliminates need for orientation-aware placement. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints. |
| 600 W peak pulse power | Handles high-energy transients from inductive load switching (e.g., solenoids, relays) without degradation. |
| Low clamping ratio (VC/VWM = 1.61) | Minimizes voltage overshoot across protected components, reducing risk of latch-up or gate oxide damage. |
| Halogen-free & RoHS-compliant (M3) | Meets environmental compliance requirements for consumer, industrial, and automotive supply chains. |
| 150 °C max junction temperature | Supports deployment in thermally demanding locations including engine control units and power supply front-ends. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting LIN bus or 12 V power rail inputs against load dump and jump-start transients in body control modules. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed upstream of LDO regulators and CAN/LIN transceivers. Use Value: Withstands 600 W surges while limiting clamped voltage to 87.1 V-well below typical 100 V automotive component ratings. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events in factory automation systems. IC Role / Device Role / Timing Role: Low-capacitance (<50 pF) transient suppressor placed directly at connector entry point. Use Value: Fast sub-nanosecond response prevents ESD-induced latch-up in precision ADC front-ends and op-amp buffers. |
| Telecom Data Line Surge Suppression | Consumer USB Port ESD Protection |
|
Use Scenario: Safeguarding Ethernet PHY interfaces or RS-485 transceivers against induced lightning surges in outdoor telecom cabinets. IC Role / Device Role / Timing Role: Primary-level TVS on differential pair lines, coordinated with secondary GDT or polymer PTC devices. Use Value: 6.9 A peak pulse current rating allows coordination with 100 Ω line impedance to limit residual surge energy to <10 mJ. |
Use Scenario: Providing Class 4 IEC 61000-4-2 ESD protection (±15 kV air, ±8 kV contact) on USB 2.0 D+/D– lines in portable audio devices. IC Role / Device Role / Timing Role: Standalone bidirectional clamp integrated into USB receptacle footprint with minimal trace length. Use Value: Halogen-free M3 construction satisfies strict material restrictions for consumer electronics sold in EU and Asia-Pacific markets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ54CA-E3/52 | RoHS-compliant but not halogen-free; same electrical specs and SMB package. | Preferred for commercial-grade applications where halogen content is unrestricted. | Select when cost sensitivity outweighs halogen-free requirement and AEC-Q101 qualification is unnecessary. |
| SMBJ54CAHM3_B/I | AEC-Q101 qualified, halogen-free, supplied in 13" tape-and-reel (3200 pcs); identical VWM, VBR, and PPPM. | Required for automotive OEM programs mandating AEC-Q101 certification and full traceability. | Choose for Tier 1 automotive designs needing qualification evidence, extended reel quantity, and full lifecycle support. |
Compared with SMBJ54CA-M3/52, the E3 variant offers lower unit cost for non-automotive use, while the HM3_B/I variant adds AEC-Q101 validation and larger packaging-making it suitable for production ramp in certified vehicle subsystems without changing circuit design or layout.
Availability
SMBJ54CA-M3/52 is available at Aetrix Electronics and suitable for automotive power line protection, industrial sensor interface protection, telecom data line surge suppression, and consumer USB port ESD protection requiring stable component supply and halogen-free compliance.
Supply support for SMBJ54CA-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 targets board-level transient suppression in harsh environments-designed for high-energy surge immunity in automotive, industrial, and telecom infrastructure where failure modes must be rigorously controlled.
FAQ
What is the clamping voltage of SMBJ54CA-M3/52 under peak pulse conditions?
The SMBJ54CA-M3/52 has a maximum clamping voltage (VC) of 87.1 V at its rated peak pulse current (IPPM) of 6.9 A, measured using the standardized 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during a 600 W transient event and is critical for ensuring downstream components remain within their absolute maximum ratings. The SMBJ54CA-M3/52 maintains this performance across its full operating temperature range.
Is SMBJ54CA-M3/52 suitable for automotive applications?
The SMBJ54CA-M3/52 itself is not AEC-Q101 qualified, but it shares identical electrical characteristics and SMB package with AEC-Q101 variants like SMBJ54CAHM3_B/I. It is widely deployed in non-safety-critical automotive subsystems-including infotainment power rails and body electronics-where halogen-free RoHS compliance is required but formal qualification is not mandated. For certified applications, the HM3 suffix variant must be specified. The SMBJ54CA-M3/52 remains fully compatible in layout and schematic.
How does the bidirectional nature of SMBJ54CA-M3/52 affect PCB layout?
The SMBJ54CA-M3/52 has no polarity marking and functions identically in either orientation, eliminating orientation-dependent placement errors during automated assembly. This simplifies layout by allowing placement on AC-coupled lines, floating grounds, or differential pairs without concern for anode/cathode alignment. The symmetric terminal structure also avoids netlist mismatches in CAD tools and reduces BOM complexity versus unidirectional alternatives requiring explicit polarity routing. The SMBJ54CA-M3/52 thus lowers design risk and manufacturing defect rates.
What is the thermal resistance profile of SMBJ54CA-M3/52?
The SMBJ54CA-M3/52 exhibits a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead resistance (RθJL) of 20 °C/W when mounted on minimum recommended 0.2" × 0.2" copper pads per terminal. These values enable accurate thermal modeling of power dissipation during repetitive surge events and confirm suitability for operation up to +150 °C junction temperature. The low RθJL supports effective heat transfer through solder joints into PCB copper, making the SMBJ54CA-M3/52 appropriate for compact, high-density layouts.
Does SMBJ54CA-M3/52 meet moisture sensitivity level (MSL) requirements for SMT assembly?
Yes, the SMBJ54CA-M3/52 meets MSL Level 1 per JEDEC J-STD-020, meaning it is not moisture-sensitive and can be stored indefinitely at ambient conditions without dry-packaging or baking prior to reflow soldering. Its molding compound is rated UL 94 V-0 for flammability, and the matte tin-plated leads comply with J-STD-002 and JESD22-B102 for solderability. This eliminates handling constraints during high-volume manufacturing and ensures consistent joint formation in lead-free reflow profiles. The SMBJ54CA-M3/52 is fully compatible with standard SMT assembly lines.
SMBJ54CA-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):
- 54V
- Voltage - Breakdown (Min):
- 60V
- Voltage - Clamping (Max) @ Ipp:
- 87.1V
- Current - Peak Pulse (10/1000µs):
- 6.9A
- 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)
SMBJ54CA-M3/52 FAQ
1.How can I place an order for SMBJ54CA-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ54CA-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 SMBJ54CA-M3/52 reliable?
The price and inventory of SMBJ54CA-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 SMBJ54CA-M3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ54CA-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ54CA-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ54CA-M3/52?
SMBJ54CA-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ54CA-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 SMBJ54CA-M3/52?
For technical support, including SMBJ54CA-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ54CA-M3/52 requirements.
6.How does Aetrix verify that SMBJ54CA-M3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ54CA-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 SMBJ54CA-M3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ54CA-M3/52?
All SMBJ54CA-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ54CA-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 SMBJ54CA-M3/52 part is unused and in its original packaging.
Return procedure for SMBJ54CA-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ54CA-M3/52 Tags
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