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Vishay General Semiconductor - Diodes Division SMBG48C-E3/52
- Part No.:
- SMBG48C-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG48C-E3/52.pdf
- Description:
- TVS DIODE 48VWM 85.5VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,592
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Product details
Overview
SMBG48C-E3/52 from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-215AA (SMBG) package, designed for clamping voltage transients on signal or power lines. It features 48 V stand-off voltage (VWM), 53.3–58.9 V breakdown voltage (VBR) at 1 mA, 77.4 V maximum clamping voltage (VC) at 7.8 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - used in automotive sensor protection and industrial I/O interface surge suppression.
For engineers reviewing the SMBG48C-E3/52 datasheet, SMBG48C-E3/52 pinout, SMBG48C-E3/52 application, or SMBG48C-E3/52 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, DO-215AA mechanical dimensions, clamping performance under standardized surge waveforms, and direct alternatives for bi-directional TVS replacement in high-reliability designs.
Technical Context
This bi-directional TVS operates symmetrically across both polarities, delivering identical clamping behavior during positive and negative transients. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1.0 ns), while the low incremental surge resistance supports robust energy absorption without thermal runaway.
The device is rated for -55 °C to +150 °C operating junction temperature and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. Its 100 °C/W junction-to-ambient thermal resistance requires minimum 5.0 mm × 5.0 mm copper pads per terminal for full 600 W derating compliance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 48 V - Maximum continuous reverse working voltage before significant leakage; defines safe operating margin below clamping threshold. |
| VBR (min/max) | 53.3 V / 58.9 V at 1 mA - Confirmed breakdown range ensuring reliable turn-on during overvoltage events. |
| VC @ IPPM | 77.4 V at 7.8 A - Clamped voltage during 10/1000 µs surge; determines maximum stress imposed on protected downstream circuitry. |
| PPPM | 600 W - Peak pulse power handling capability with 0.01% duty cycle; enables single-event lightning or ESD-level surge suppression. |
| IPPM | 7.8 A - Peak pulse current corresponding to VC; used to size PCB trace width and verify layout survivability. |
| TJ max | +150 °C - Maximum junction temperature; sets thermal design limits for sustained surge repetition or ambient temperature derating. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JEDEC standards. |
Pinout & Package
DO-215AA (SMBG) surface-mount package: gull-wing leads, matte tin-plated terminals solderable per J-STD-020 and JESD 22-B102, RoHS-compliant, MSL Level 1, no polarity marking (bi-directional).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional transient conduction path | No functional distinction between terminals; either lead serves as current entry/exit depending on transient polarity. |
| Case (body) | Thermal and mechanical interface | Non-electrical; requires 5.0 mm × 5.0 mm copper pad per lead for specified thermal resistance and power dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping symmetry | Identical VBR, VC, and IPPM in both directions - eliminates polarity concerns in AC-coupled or floating signal lines. |
| Glass passivated junction | Stable leakage <1.0 µA at VWM and long-term reliability under humidity and thermal stress. |
| 600 W 10/1000 µs pulse rating | Validated energy absorption capacity for IEC 61000-4-5 Level 4 surges (4 kV line-to-ground) when properly mounted. |
| AEC-Q101 qualification | Automotive-grade validation including HTOL, temperature cycling, and ESD robustness - suitable for engine control, ADAS, and body electronics. |
| MSL Level 1 moisture sensitivity | Unlimited floor life at ≤30 °C/60% RH - allows standard SMT assembly without dry pack or baking requirements. |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from load dump and inductive switching transients in 12 V vehicle systems. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed directly at connector entry point to shunt surge energy before reaching sensitive ASICs. Use Value: Limits transient voltage to ≤77.4 V during 7.8 A pulses, preventing latch-up or gate oxide damage in downstream microcontrollers and signal conditioners. |
Use Scenario: Safeguarding 24 V DC digital input modules in programmable logic controllers against field-wiring induced surges and ground bounce. IC Role / Device Role / Timing Role: Primary surge suppression element across input terminals, coordinated with series impedance for IEC 61000-4-4 EFT immunity. Use Value: Maintains system uptime by absorbing repetitive 600 W pulses without degradation, validated for >1000 surge events per AEC-Q101 test protocols. |
| Telecom Line Card Surge Suppression | Consumer Appliance Motor Control Board Protection |
Use Scenario: Shielding Ethernet PHY interfaces and RS-485 transceivers on telecom line cards from lightning-induced surges entering via outdoor cabling. IC Role / Device Role / Timing Role: First-stage clamping device on differential pairs, paired with common-mode chokes for balanced transient rejection. Use Value: Achieves <1 ns response time and symmetrical clamping to preserve signal integrity while meeting GR-1089-CORE Level 3 surge requirements. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machines and HVAC blowers connected to microcontroller-based motor drivers. IC Role / Device Role / Timing Role: Snubber-style clamp across motor terminals or driver output pins to limit inductive kickback voltage. Use Value: Enables use of lower-voltage-rated MOSFETs (e.g., 60 V) by clamping spikes to 77.4 V, reducing BOM cost and board space. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bi-directional TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ48CA | Same VWM (48 V), identical DO-214AA package but 600 W rating with higher IPPM (13.9 A) and lower VC (77.4 V); non-AEC-Q101. | Preferred for commercial/industrial designs where automotive qualification is not required and higher surge margin is needed. | Select SMBJ48CA if AEC-Q101 is unnecessary and board layout allows DO-214AA footprint; verify thermal pad area matches SMBG's 5.0 mm × 5.0 mm requirement. |
| SMAJ48CA | Lower PPPM (400 W), same VWM/VBR, DO-214AC package with smaller pad area (3.5 mm × 3.5 mm) and higher RθJA (140 °C/W). | Suitable only for lower-energy transients (e.g., IEC 61000-4-2 ESD) or space-constrained consumer boards where 600 W is excessive. | Choose SMAJ48CA only when surge threat level is limited to ±8 kV contact ESD and thermal budget permits higher junction temperature rise. |
Compared with SMBG48C-E3/52, SMBJ48CA offers higher surge margin in same form factor but lacks automotive qualification, while SMAJ48CA reduces cost and size at the expense of 33% lower pulse power handling and stricter thermal constraints.
Availability
SMBG48C-E3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC inputs, telecom line card protection, and appliance motor control boards requiring stable component supply with AEC-Q101 assurance and consistent DO-215AA packaging.
Supply support for SMBG48C-E3/52 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 power MOSFETs with emphasis on reliability, efficiency, and application-specific optimization.
The SMBG series was engineered for high-power, surface-mount transient suppression in harsh environments - targeting automotive, industrial, and telecom applications demanding AEC-Q101 qualification and robust 10/1000 µs surge performance.
FAQ
What is the polarity configuration of SMBG48C-E3/52?
SMBG48C-E3/52 is a bi-directional TVS diode with symmetrical electrical characteristics in both directions. It has no cathode band or polarity marking on the DO-215AA package, and either terminal functions identically as anode or cathode depending on transient polarity - enabling straightforward placement on AC-coupled or floating signal paths without orientation checks during assembly.
Does SMBG48C-E3/52 meet automotive qualification standards?
Yes, SMBG48C-E3/52 is AEC-Q101 qualified, having passed stress tests including high-temperature operating life (HTOL), temperature cycling, and ESD robustness per JEDEC standards. This qualification confirms its suitability for automotive applications such as engine control units, ADAS sensors, and body electronics where reliability under thermal and electrical stress is critical.
What is the maximum clamping voltage of SMBG48C-E3/52 under surge conditions?
The maximum clamping voltage (VC) of SMBG48C-E3/52 is 77.4 V at a peak pulse current (IPPM) of 7.8 A with a 10/1000 µs waveform. This value represents the upper voltage limit imposed on protected circuitry during worst-case surge events and must be compared against the absolute maximum ratings of downstream ICs to ensure safe operation.
How does the DO-215AA package of SMBG48C-E3/52 affect thermal performance?
The DO-215AA (SMBG) package of SMBG48C-E3/52 achieves a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 5.0 mm × 5.0 mm copper pads per terminal. Deviation from this pad layout increases thermal resistance, reducing allowable surge repetition rate and risking thermal failure during sustained or repeated transients - making strict adherence to recommended land pattern essential.
Is SMBG48C-E3/52 RoHS-compliant and halogen-free?
Yes, SMBG48C-E3/52 carries the "E3" suffix indicating RoHS-compliant construction per Directive 2011/65/EU and halogen-free status per JEDEC JS709A. The device uses matte tin-plated leads, glass passivated chip junction, and UL 94 V-0 compliant molding compound - satisfying environmental compliance requirements for automotive, industrial, and consumer electronics markets.
SMBG48C-E3/52 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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 48V
- Voltage - Breakdown (Min):
- 53.3V
- Voltage - Clamping (Max) @ Ipp:
- 85.5V
- Current - Peak Pulse (10/1000µs):
- 7A
- 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 (SMBG)
SMBG48C-E3/52 FAQ
1.How can I place an order for SMBG48C-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG48C-E3/52 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 SMBG48C-E3/52 reliable?
The price and inventory of SMBG48C-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG48C-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBG48C-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG48C-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG48C-E3/52?
SMBG48C-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG48C-E3/52 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 SMBG48C-E3/52?
For technical support, including SMBG48C-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG48C-E3/52 requirements.
6.How does Aetrix verify that SMBG48C-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG48C-E3/52 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 SMBG48C-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBG48C-E3/52?
All SMBG48C-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG48C-E3/52, 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 SMBG48C-E3/52 part is unused and in its original packaging.
Return procedure for SMBG48C-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG48C-E3/52 Tags
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