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Vishay General Semiconductor - Diodes Division SMBG54AHE3/52
- Part No.:
- SMBG54AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG54AHE3/52.pdf
- Description:
- TVS DIODE 54VWM 87.1VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,558
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Product details
Overview
SMBG54AHE3/52 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), clamping voltage of 87.1 V at 6.9 A, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SMBG54AHE3/52 datasheet, SMBG54AHE3/52 pinout, SMBG54AHE3/52 application, or SMBG54AHE3/52 equivalent, this device is selected for high-energy surge suppression in automotive power nets, industrial sensor interfaces, and DC bus lines where fast response (<1 ns), low clamping ratio, and stable junction temperature up to +150 °C are critical design requirements.
Technical Context
This TVS operates as a unidirectional avalanche clamp, triggered when reverse voltage exceeds VBR, diverting transient current away from protected circuitry. Its glass-passivated junction ensures stable leakage (<1.0 µA at 54 V) and repeatable breakdown behavior across temperature (-55 °C to +150 °C).
The device uses a low-inductance SMBG (DO-215AA) surface-mount package with matte tin-plated leads, optimized for automated placement and compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance. Thermal resistance is 100 °C/W (junction-to-ambient) on 5.0 mm × 5.0 mm copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 54 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC working margin. |
| VBR (min/max) | 60.0 V / 66.3 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on under transients. |
| VC @ IPPM | 87.1 V at 6.9 A - Clamped voltage during 600 W surge; determines maximum stress on downstream ICs. |
| PPPM | 600 W (10/1000 µs) - Peak surge energy handling capacity; supports ISO 7637-2 Pulse 1/2a/5a compliance. |
| IFSM | 100 A (8.3 ms half-sine) - Surge current rating for unidirectional devices; validates robustness against load dump events. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive environments. |
| AEC-Q101 | Qualified - Validated for automotive electronic systems per stress test requirements including HTGB, HTRB, and TCT. |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, low-profile case with cathode band marking. Dimensions: 4.57 mm × 3.94 mm × 2.10 mm (L × W × H); 0.2" × 0.2" copper pad layout recommended per datasheet fig. 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to ground or low-impedance return path; carries surge current during clamping. |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., 12 V rail); polarity band identifies this end per JEDEC DO-215AA standard. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Enables suppression of high-energy transients like ISO 16750-2 load dump spikes without degradation. |
| AEC-Q101 qualification | Validates reliability for automotive powertrain, body control, and ADAS modules requiring long-term field stability. |
| Glass-passivated junction | Ensures consistent VBR tolerance and low leakage (<1 µA) across temperature and lifetime. |
| MSL Level 1 (260 °C) | Supports lead-free reflow assembly without moisture-induced popcorning or delamination. |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes overvoltage overshoot during clamping, protecting 60 V-rated MOSFETs and gate drivers. |
Applications
| Automotive Power Net Protection | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting 12 V/24 V power rails in engine control units (ECUs) against load dump and inductive switching transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between battery feed and primary regulator input. Use Value: Limits peak voltage to ≤87.1 V during 600 W surges, preventing damage to downstream PMICs and microcontrollers. | Use Scenario: Shielding analog front-end inputs of pressure/temperature sensors in factory automation PLCs from ESD and cable discharge events. IC Role / Device Role / Timing Role: Point-of-entry protection on signal lines connected to ADC inputs or op-amp buffers. Use Value: Sub-1 ns response time and <1 µA leakage preserve signal integrity and measurement accuracy in 24-bit precision systems. |
| DC Motor Drive Bus | Telecom Power Supply Input |
Use Scenario: Safeguarding H-bridge MOSFET gates and bootstrap circuits in brushed/BLDC motor controllers exposed to back-EMF spikes. IC Role / Device Role / Timing Role: Clamp mounted directly across motor supply terminals or gate driver supply rails. Use Value: Withstands repetitive 100 A surge current (8.3 ms) and maintains clamping performance after >1000 surge cycles. | Use Scenario: Input-stage surge protection for 48 V telecom rectifiers and PoE injectors subject to lightning-induced surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: Primary-level TVS on AC/DC converter input or DC distribution bus before isolation stage. Use Value: 600 W rating and 150 °C max junction temperature support continuous operation in enclosed, high-ambient telecom cabinets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ54A-E3/52 | Same VWM (54 V), lower PPPM (600 W → 400 W), higher VC (93.6 V vs. 87.1 V), same SMB package. | Less robust for high-energy load dump; suitable only for lower-tier surge immunity requirements. | Select SMBG54AHE3/52 when full 600 W capability and tighter clamping are required. |
| SMCJ54AHE3/52 | Same VWM and VBR, but SMC (DO-214AB) package - larger footprint, higher thermal mass, RθJA = 35 °C/W vs. 100 °C/W. | Better thermal dissipation for sustained surge duty; incompatible with space-constrained SMB layouts. | Choose SMBG54AHE3/52 for compact PCBs where SMBG's 4.6 mm × 3.9 mm size is mandatory. |
Compared with SMBJ54A-E3/52 and SMCJ54AHE3/52, SMBG54AHE3/52 delivers optimal balance of high surge rating, tight clamping, AEC-Q101 qualification, and minimal board area - making it the preferred choice for next-generation automotive and industrial modules with strict size and reliability constraints.
Availability
SMBG54AHE3/52 is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, DC motor drives, and telecom power supplies requiring stable component supply and long-term lifecycle assurance.
Supply support for SMBG54AHE3/52 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, MOSFETs, and optoelectronics with emphasis on reliability, efficiency, and automotive-grade qualification.
The SMBG series was developed specifically for high-reliability transient suppression in space-constrained automotive and industrial applications, combining AEC-Q101 validation with industry-standard DO-215AA packaging.
FAQ
What is the clamping voltage of SMBG54AHE3/52 at its rated peak pulse current?
The SMBG54AHE3/52 has a maximum clamping voltage (VC) of 87.1 V at its peak pulse current (IPPM) of 6.9 A, measured under the standardized 10/1000 µs waveform. This value is confirmed in the Vishay datasheet Document Number 88456, Table on page 2. The SMBG54AHE3/52 achieves a clamping ratio of approximately 1.38 relative to its minimum breakdown voltage, supporting reliable protection of 60 V-rated components.
Is SMBG54AHE3/52 qualified for automotive applications?
Yes, SMBG54AHE3/52 is explicitly AEC-Q101 qualified, as stated in the Vishay datasheet revision 09-Jan-2024 (Document Number 88456), section "MECHANICAL DATA" and "RATINGS AND CHARACTERISTICS CURVES". This qualification covers stress tests including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling (TCT), confirming suitability for under-hood and chassis-mounted automotive electronics.
What does the 'HE3' suffix indicate in SMBG54AHE3/52?
The 'HE3' suffix in SMBG54AHE3/52 denotes RoHS-compliant construction with AEC-Q101 qualification and matte tin-plated leads meeting J-STD-002 solderability standards. Per Vishay's ordering information table (page 3), 'HE3' distinguishes this variant from industrial-grade 'E3' and halogen-free 'HM3' versions - confirming its automotive-grade reliability and lead-free assembly compatibility.
What is the thermal resistance of SMBG54AHE3/52, and how does it affect layout?
The SMBG54AHE3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in the "THERMAL CHARACTERISTICS" table (page 3). This value requires adherence to the recommended pad layout to avoid thermal runaway during repetitive surges; reducing pad area increases RθJA and de-rates power handling.
Can SMBG54AHE3/52 be used in bidirectional configurations?
No, SMBG54AHE3/52 is a unidirectional TVS diode, indicated by the 'A' (not 'CA') suffix and presence of a cathode band marking. Bidirectional variants use the 'CA' suffix (e.g., SMBG54CA), which exhibit symmetric breakdown in both polarities. Using SMBG54AHE3/52 in reverse-biased AC applications would result in forward conduction and failure; always verify polarity alignment in schematic and layout for SMBG54AHE3/52.
SMBG54AHE3/52 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG54AHE3/52 FAQ
1.How can I place an order for SMBG54AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG54AHE3/52 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 SMBG54AHE3/52 reliable?
The price and inventory of SMBG54AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG54AHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBG54AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG54AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG54AHE3/52?
SMBG54AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG54AHE3/52 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 SMBG54AHE3/52?
For technical support, including SMBG54AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG54AHE3/52 requirements.
6.How does Aetrix verify that SMBG54AHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG54AHE3/52 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 SMBG54AHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBG54AHE3/52?
All SMBG54AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG54AHE3/52, 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 SMBG54AHE3/52 part is unused and in its original packaging.
Return procedure for SMBG54AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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