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Vishay General Semiconductor - Diodes Division SMBG54A-M3/52
- Part No.:
- SMBG54A-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG54A-M3/52.pdf
- Description:
- TVS DIODE 54VWM 87.1VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,211
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Product details
Overview
SMBG54A-M3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for robust overvoltage protection of sensitive electronics. It features a 54 V stand-off voltage (VWM), 60.0–66.3 V breakdown voltage (VBR) at 1 mA, 600 W peak pulse power (10/1000 μs), <100 ns response time, and AEC-Q101 qualification - deployed on automotive sensor signal lines, power supply inputs, and MOSFET gate drivers.
For engineers reviewing the SMBG54A-M3/52 datasheet, SMBG54A-M3/52 pinout, SMBG54A-M3/52 application, or SMBG54A-M3/52 equivalent, key selection criteria include clamping voltage (87.1 V at IPPM), unidirectional polarity with cathode band marking, halogen-free RoHS compliance (M3 suffix), and junction temperature range (−55 °C to +150 °C).
Technical Context
This TVS diode operates as a clamping-type surge protector, leveraging an avalanche breakdown mechanism to limit transient voltages before they damage downstream ICs or discrete components. Its glass-passivated junction ensures stable VBR tolerance (±5 %) and low leakage (<1.0 μA at VWM), while the low incremental surge resistance enables effective energy absorption during 10/1000 μs surges up to 6.9 A peak pulse current.
The SMBG54A-M3/52 is rated for repetitive surge duty cycle ≤0.01 % and meets MSL Level 1 per J-STD-020 (260 °C peak reflow). Its thermal resistance (RθJA = 100 °C/W) and RθJL = 20 °C/W support reliable operation under pulsed stress when mounted on 5.0 mm × 5.0 mm copper pads per Vishay's recommended layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 54 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR (min/max) | 60.0 V / 66.3 V at 1 mA - defines precise avalanche onset window for predictable protection threshold |
| VC @ IPPM | 87.1 V at 6.9 A - clamped voltage during 600 W transient, limiting stress on protected circuitry |
| IPPM | 6.9 A - peak surge current capability under standardized 10/1000 μs waveform |
| PPPM | 600 W - peak pulse power rating, defining maximum transient energy absorption capacity |
| TJ range | −55 °C to +150 °C - wide operating junction temperature range suitable for under-hood automotive use |
| Leakage ID | ≤1.0 μA at VWM - negligible standby current, avoiding signal integrity degradation or battery drain |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, low-profile plastic case with matte tin-plated leads; meets UL 94 V-0, AEC-Q101 qualified, halogen-free (M3 suffix), and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (marked end) | Transient current sink | Connected to protected line; conducts surge current to ground when VIN exceeds VBR |
| Anode | Reference node | Typically tied to system ground or lowest potential reference point in unidirectional configuration |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables protection against IEC 61000-4-5 Level 4 surges (4 kV line-to-ground) without derating |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard |
| Glass-passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift |
| MSL Level 1 (260 °C peak) | Supports lead-free reflow soldering without preconditioning or baking requirements |
| Halogen-free (M3 suffix) | Complies with IPC-4101D/82 and EU Directive 2011/65/EU Annex II for environmentally responsible manufacturing |
Applications
| Automotive Sensor Protection | Industrial Power Input Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load-dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between signal line and chassis ground, responding within <100 ns to suppress spikes above 54 V. Use Value: Prevents latch-up or permanent damage to 5 V/12 V interface ICs by limiting transient voltage to ≤87.1 V at 6.9 A surge. | Use Scenario: Safeguarding 24 V DC input rails of PLC modules and motor drives against lightning-induced surges and relay contact bounce. IC Role / Device Role / Timing Role: Primary front-end TVS on power entry, coordinated with upstream fuses and downstream LC filters to absorb 600 W pulses. Use Value: Maintains system uptime by absorbing repetitive 10/1000 μs transients up to 6.9 A without degradation, validated per AEC-Q101. |
| Automotive Powertrain Control | Consumer Device USB/DC Power Lines |
Use Scenario: Shielding ignition coil driver circuits and fuel injector control lines from high-energy inductive kickback in engine management systems. IC Role / Device Role / Timing Role: Fast-response unidirectional TVS connected anode-to-ground, clamping transients generated during MOSFET turn-off. Use Value: Extends MOSFET lifetime by limiting VDS overshoot to 87.1 V, compatible with 100 V-rated silicon devices. | Use Scenario: Protecting USB-C PD and 12 V auxiliary power inputs in smart home hubs and portable medical devices from ESD and cable discharge events. IC Role / Device Role / Timing Role: Standoff-rated TVS on input rail, selected for low leakage (<1 μA) to avoid battery drain in always-on applications. Use Value: Delivers certified ESD immunity (IEC 61000-4-2 ±15 kV air) while maintaining <1 μA quiescent current at 54 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBG54A-E3/52 | Same electrical specs; RoHS-compliant industrial grade (E3), not halogen-free | Lacks halogen-free certification; unsuitable for automotive OEMs requiring IPC-4101D/82 compliance | Select SMBG54A-M3/52 when halogen-free material content is mandated by design or regulatory requirement |
| SMBG54AHM3/52 | Identical electrical and mechanical specs; adds AEC-Q101 qualification (HM3 suffix) | Explicitly qualified for automotive applications per AEC-Q101; includes extended reliability test data | Choose SMBG54AHM3/52 for safety-critical automotive subsystems requiring full AEC-Q101 documentation traceability |
Compared with SMBG54A-E3/52 and SMBG54AHM3/52, the SMBG54A-M3/52 provides halogen-free compliance without AEC-Q101 validation - making it optimal for industrial and consumer designs needing environmental compliance but not full automotive qualification.
Availability
SMBG54A-M3/52 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial power input conditioning, and consumer device DC power line safeguarding requiring stable component supply, halogen-free materials, and AEC-Q101-aligned reliability.
Supply support for SMBG54A-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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific performance.
The SMBG series was engineered for high-power transient suppression in space-constrained surface-mount applications - targeting automotive, industrial, and telecom systems where fast response, repeatable clamping, and environmental compliance are critical.
FAQ
What is the clamping voltage of the SMBG54A-M3/52 under peak surge conditions?
The SMBG54A-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 ensures downstream components see limited overvoltage stress during transient events, and it is guaranteed across the full operating temperature range (−55 °C to +150 °C) per Vishay's datasheet revision 09-Jan-2024.
Is the SMBG54A-M3/52 suitable for automotive applications?
Yes, the SMBG54A-M3/52 is halogen-free, RoHS compliant, and meets MSL Level 1 for lead-free reflow. While it carries the M3 suffix (halogen-free industrial grade), it is not AEC-Q101 qualified - that designation requires the HM3 suffix (e.g., SMBG54AHM3/52). For non-safety-critical automotive subsystems where halogen-free compliance is required but full AEC-Q101 validation is not mandated, the SMBG54A-M3/52 remains a valid choice.
How does the SMBG54A-M3/52 differ from the SMBG54A-E3/52?
The SMBG54A-M3/52 and SMBG54A-E3/52 share identical electrical specifications (VWM = 54 V, VBR = 60.0–66.3 V, VC = 87.1 V) and package (SMBG/DO-215AA), but differ in material compliance: M3 denotes halogen-free and RoHS-compliant construction, whereas E3 is RoHS-compliant but not halogen-free. Both are industrial-grade; neither is AEC-Q101 qualified unless specified with HE3 or HM3 suffixes.
What is the maximum reverse leakage current for the SMBG54A-M3/52 at its stand-off voltage?
The SMBG54A-M3/52 exhibits a maximum reverse leakage current (ID) of 1.0 μA at its rated stand-off voltage (VWM) of 54 V and ambient temperature of 25 °C. This low leakage supports energy-sensitive applications such as battery-powered sensors and always-on interfaces, minimizing parasitic drain without compromising protection performance.
Can the SMBG54A-M3/52 be used in bidirectional configurations?
No - the SMBG54A-M3/52 is a unidirectional TVS diode, indicated by the "A" suffix (vs. "CA" for bidirectional variants like SMBG54CA). Its cathode band marking and internal structure support conduction only from anode to cathode during forward surge events. For bidirectional protection, designers must select the CA-suffixed variant, which has symmetrical breakdown behavior and no polarity marking.
SMBG54A-M3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-215AA, SMB Gull Wing
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- 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:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG54A-M3/52 FAQ
1.How can I place an order for SMBG54A-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG54A-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 SMBG54A-M3/52 reliable?
The price and inventory of SMBG54A-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 SMBG54A-M3/52 is usually 5 days.
3.What payment methods are accepted for SMBG54A-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG54A-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG54A-M3/52?
SMBG54A-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG54A-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 SMBG54A-M3/52?
For technical support, including SMBG54A-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG54A-M3/52 requirements.
6.How does Aetrix verify that SMBG54A-M3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG54A-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 SMBG54A-M3/52 meets industry standards.
7.What is the process for return or replacement of SMBG54A-M3/52?
All SMBG54A-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG54A-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 SMBG54A-M3/52 part is unused and in its original packaging.
Return procedure for SMBG54A-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG54A-M3/52 Tags
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