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Vishay General Semiconductor - Diodes Division SMBG54CA-E3/5B
- Part No.:
- SMBG54CA-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG54CA-E3/5B.pdf
- Description:
- TVS DIODE 54VWM 87.1VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,520
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Product details
Overview
SMBG54CA-E3/5B from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for robust overvoltage protection of signal and power lines. 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 use.
For engineers reviewing the SMBG54CA-E3/5B datasheet, SMBG54CA-E3/5B pinout, SMBG54CA-E3/5B application, or SMBG54CA-E3/5B equivalent, key selection criteria include bidirectional clamping symmetry, low leakage (<1.0 μA at 54 V), thermal resistance (RθJA = 100 °C/W), MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, delivering identical clamping behavior above ±54 V. Its glass-passivated junction ensures stable breakdown characteristics and fast response time (<1 ns), while the low incremental surge resistance minimizes voltage overshoot during transient events such as ESD, lightning-induced surges, or inductive switching spikes.
The device is rated for repetitive 10/1000 μs waveform pulses at 0.01% duty cycle and supports operating junction temperatures from –55 °C to +150 °C. It meets UL 497B recognition (QVGQ2) and complies with ANSI/IEEE C62.35 standards for surge protectors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 54 V - Maximum continuous reverse working voltage before clamping begins |
| VBR (min/max) | 60.0 V / 66.3 V at 1 mA - Ensures reliable turn-on within defined tolerance band under standardized test conditions |
| VC @ IPPM | 87.1 V at 6.9 A - Clamped voltage during 600 W transient, defining worst-case stress on protected circuitry |
| ID @ VWM | <1.0 μA - Negligible leakage current preserves signal integrity and battery life in always-on systems |
| PPPM | 600 W (10/1000 μs) - Peak surge energy handling capacity suitable for automotive load-dump and ISO 7637-2 compliance |
| TJ max | +150 °C - Enables operation in under-hood automotive environments and industrial enclosures |
| MSL Level | Level 1 (J-STD-020) - Supports standard reflow without baking; peak temperature up to 260 °C |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, low-profile gull-wing leaded case with matte tin-plated terminals solderable per J-STD-002 and JESD 22-B102. No polarity marking on bidirectional variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional terminal pair | Either end functions identically; no cathode band marking - enables flexible PCB layout and eliminates orientation errors during assembly |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Handles high-energy transients like ISO 7637-2 Pulse 5a (load dump) without degradation |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Glass passivated junction | Ensures long-term stability of VBR and low parameter drift across lifetime and temperature |
| UL 497B recognized (QVGQ2) | Meets safety requirements for telecom and industrial signal line protection without additional certification overhead |
| MSL Level 1 | Eliminates pre-bake requirement and supports high-throughput reflow in standard SMT lines |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V power rails in engine control units (ECUs) and body control modules against load-dump transients and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional clamping element placed upstream of DC-DC converters and microcontrollers to limit voltage excursions to safe levels. Use Value: Withstands 600 W surges and operates up to +150 °C, enabling direct integration into under-hood electronics without derating. | Use Scenario: Safeguarding analog sensor inputs (e.g., pressure, temperature) in PLC I/O modules exposed to field wiring transients. IC Role / Device Role / Timing Role: Low-capacitance (typ. <100 pF at 0 V) shunt protector on differential or single-ended signal traces. Use Value: Sub-1 μA leakage at 54 V prevents DC offset errors in precision measurement circuits while clamping fast ESD events. |
| Telecom Data Line Surge Suppression | Consumer USB/DisplayPort Port Protection |
Use Scenario: Shielding RS-485/RS-422 communication lines in base stations and network infrastructure equipment from lightning-induced surges. IC Role / Device Role / Timing Role: Symmetrical bidirectional clamp placed across differential pairs to maintain common-mode immunity and signal integrity. Use Value: Identical VBR and VC in both directions ensure balanced clamping, preserving differential signaling margins during asymmetric transients. | Use Scenario: Adding secondary-level surge protection on USB 2.0 or DisplayPort auxiliary channels in laptops and docking stations. IC Role / Device Role / Timing Role: Standoff-rated TVS placed after primary ESD diodes to absorb higher-energy system-level surges (IEC 61000-4-5). Use Value: 87.1 V clamping voltage provides headroom above 5 V/3.3 V rail limits while maintaining compatibility with 15 kV contact ESD front-end stages. |
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-E3/5B | Same VWM/VBR/VC, but lower PPPM = 600 W (same rating), different package: SMB (DO-214AA), slightly larger footprint and higher RθJA (110 °C/W) | Less suitable for space-constrained automotive modules where SMBG's smaller DO-215AA outline is preferred | Select SMBG54CA-E3/5B when board area is limited and thermal performance on small pads must be optimized. |
| 1.5KE54CA | Higher PPPM = 1500 W, axial leaded DO-201AD package, slower response due to higher parasitic inductance | Not suitable for high-speed data lines or dense SMT layouts; intended for bulk power rail protection only | Choose SMBG54CA-E3/5B instead for SMT compatibility, faster response, and automotive qualification. |
Compared with SMBJ54CA-E3/5B and 1.5KE54CA, SMBG54CA-E3/5B delivers identical electrical protection performance in a smaller, thermally superior, and automotive-qualified surface-mount package-making it optimal for next-generation compact, high-reliability embedded systems.
Availability
SMBG54CA-E3/5B is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, telecom data lines, and consumer port protection requiring stable component supply and AEC-Q101 assurance.
Supply support for SMBG54CA-E3/5B 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 SMBG series is engineered for high-power, high-reliability transient suppression in automotive, industrial, and telecom systems-designed to meet stringent AEC-Q101, UL, and IEC surge immunity standards in compact surface-mount form.
FAQ
What is the clamping voltage of SMBG54CA-E3/5B and how is it measured?
The SMBG54CA-E3/5B has a maximum clamping voltage (VC) of 87.1 V, measured at a peak pulse current (IPPM) of 6.9 A using a 10/1000 μs waveform. This value defines the upper voltage limit imposed on protected circuitry during a standardized surge event and is verified per ANSI/IEEE C62.35 test methods. The SMBG54CA-E3/5B maintains this clamping performance bidirectionally across its full operating temperature range.
Is SMBG54CA-E3/5B suitable for automotive applications?
Yes, SMBG54CA-E3/5B is AEC-Q101 qualified and rated for junction temperatures from –55 °C to +150 °C, making it suitable for under-hood and cabin automotive applications including powertrain control modules, ADAS sensors, and infotainment power supplies. Its UL 497B recognition and 600 W surge capability align with ISO 7637-2 Pulse 5a requirements. The SMBG54CA-E3/5B is explicitly listed in Vishay's AEC-Q101 qualified product matrix.
Does SMBG54CA-E3/5B have polarity markings on the package?
No, SMBG54CA-E3/5B does not have polarity markings because it is a bidirectional TVS diode. Unlike unidirectional variants (e.g., SMBG54A), the SMBG54CA-E3/5B features symmetrical anode/cathode terminals with identical electrical behavior in both directions. This eliminates orientation constraints during PCB layout and automated placement, reducing assembly risk. The SMBG54CA-E3/5B package follows DO-215AA mechanical dimensions with no band or marking.
What is the maximum leakage current of SMBG54CA-E3/5B at its rated standoff voltage?
The SMBG54CA-E3/5B exhibits a maximum reverse leakage current (ID) of 1.0 μA at its rated standoff voltage (VWM) of 54 V and ambient temperature of 25 °C. This ultra-low leakage preserves signal fidelity in high-impedance sensor interfaces and extends battery life in always-on systems. Leakage remains below 5.0 μA even at +125 °C, as confirmed by Vishay's thermal derating curves in Document 88456.
How does the SMBG54CA-E3/5B package compare to SMBJ54CA in terms of thermal performance?
The SMBG54CA-E3/5B uses the DO-215AA package with a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W, while the SMBJ54CA (DO-214AA) has RθJA = 110 °C/W under identical 0.2" × 0.2" pad conditions. This 10 °C/W improvement allows the SMBG54CA-E3/5B to sustain higher average power dissipation or operate at lower junction temperatures in thermally constrained designs. The SMBG54CA-E3/5B also offers a 15% smaller footprint than SMBJ54CA.
SMBG54CA-E3/5B 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:
- -
- 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 (SMBG)
SMBG54CA-E3/5B FAQ
1.How can I place an order for SMBG54CA-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG54CA-E3/5B 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 SMBG54CA-E3/5B reliable?
The price and inventory of SMBG54CA-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG54CA-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBG54CA-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG54CA-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG54CA-E3/5B?
SMBG54CA-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG54CA-E3/5B 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 SMBG54CA-E3/5B?
For technical support, including SMBG54CA-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG54CA-E3/5B requirements.
6.How does Aetrix verify that SMBG54CA-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG54CA-E3/5B 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 SMBG54CA-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBG54CA-E3/5B?
All SMBG54CA-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG54CA-E3/5B, 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 SMBG54CA-E3/5B part is unused and in its original packaging.
Return procedure for SMBG54CA-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG54CA-E3/5B Tags
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