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Vishay General Semiconductor - Diodes Division SMBG90CAHE3/5B
- Part No.:
- SMBG90CAHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG90CAHE3/5B.pdf
- Description:
- TVS DIODE 90VWM 146VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,294
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Product details
Overview
SMBG90CAHE3/5B from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for clamping voltage transients on signal or power lines. It features 90 V stand-off voltage (VWM), 100 V minimum breakdown voltage (VBR), 146 V maximum clamping voltage (VC) at 4.1 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 SMBG90CAHE3/5B datasheet, SMBG90CAHE3/5B pinout, SMBG90CAHE3/5B application, or SMBG90CAHE3/5B equivalent, key selection criteria include bidirectional polarity, AEC-Q101 qualification, 150 °C max junction temperature, low incremental surge resistance, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a voltage-clamping protector with symmetrical avalanche behavior in both directions, enabling robust ESD and lightning-induced surge suppression without polarity sensitivity. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 μA at VWM), while the low thermal resistance (RθJL = 20 °C/W) supports reliable energy dissipation during repetitive transients.
The SMBG90CAHE3/5B is rated for 600 W peak pulse power under 10/1000 μs waveform at 0.01% duty cycle and meets J-STD-020 MSL Level 1 with 260 °C reflow peak, making it suitable for high-reliability automotive and industrial PCB assemblies requiring long-term stability under thermal cycling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 90 V - maximum continuous reverse operating voltage before clamping begins |
| VBR (min) | 100 V at 1 mA test current - guaranteed avalanche onset threshold in either direction |
| VC (max) | 146 V at IPPM = 4.1 A - peak clamped voltage during 10/1000 μs surge, limiting downstream stress |
| PPPM | 600 W - surge power handling capability with standardized waveform, defining protection margin |
| ID (max) | 1.0 μA at VWM - ultra-low leakage preserves signal integrity in high-impedance circuits |
| TJ max | +150 °C - extended junction temperature range enables under-hood automotive use |
| Qualification | AEC-Q101 qualified - validated for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, bidirectional configuration with no polarity marking; matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional avalanche terminals | No functional distinction - either terminal serves as anode or cathode depending on transient polarity; no band marking required |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Enables suppression of high-energy transients (e.g., ISO 7637-2 Pulse 5a) without failure |
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard 260 °C reflow without baking preconditioning |
| Glass passivated junction | Ensures stable VBR tolerance and low parameter drift over temperature and lifetime |
| Low clamping ratio (VC/VBR ≈ 1.46) | Minimizes protected circuit overvoltage during clamping, critical for 3.3 V/5 V logic interfaces |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive switching spikes in vehicle ECUs. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed directly at connector entry point to shunt surge energy before reaching sensitive ASICs. Use Value: Limits transient voltage to ≤146 V, preventing latch-up or gate oxide damage in 5 V-tolerant receivers while maintaining signal fidelity. | Use Scenario: Safeguarding PLC digital input modules against field-wiring induced surges from relay coils or motor drives. IC Role / Device Role / Timing Role: Bidirectional clamping element across isolated 24 V DC input lines, absorbing ±1 kV EFT bursts per IEC 61000-4-4. Use Value: Withstands 600 W pulses without degradation, ensuring >100,000 surge events over product lifetime per AEC-Q101 stress testing. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Shielding Ethernet PHY front-end components (e.g., magnetics, PHY ICs) from lightning-induced common-mode surges on PoE or data lines. IC Role / Device Role / Timing Role: Primary-level TVS mounted adjacent to RJ45 jack, clamping differential and common-mode transients simultaneously. Use Value: Symmetrical 90 V VWM allows identical protection on both line pairs without polarity concerns, reducing BOM count. | Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters to protect USB-C PD controllers and output regulation circuitry. IC Role / Device Role / Timing Role: Fast-response clamping device across 12 V or 20 V output rails, triggered by transformer ringing or feedback loop faults. Use Value: 146 V clamping voltage provides ≥20% margin above nominal 12 V/20 V outputs, avoiding false triggering during normal operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ90CA-E3/5B | Same VWM (90 V), but lower PPPM = 600 W (same), higher VC = 150 V at 4.0 A; SMB (DO-214AA) package, 1.6 mm taller | Less board space efficiency due to larger footprint; not AEC-Q101 qualified | Select when cost priority outweighs automotive qualification and height constraints |
| SMCJ90CAHE3/5B | Same VWM and AEC-Q101 qualification, but higher PPPM = 1500 W and larger SMC (DO-214AB) package | Used where higher surge energy (e.g., ISO 16750-2) must be absorbed; incompatible PCB layout | Choose for heavy-duty industrial or commercial power supply inputs requiring >1 kW surge rating |
Compared with SMBJ90CA-E3/5B and SMCJ90CAHE3/5B, the SMBG90CAHE3/5B uniquely balances AEC-Q101 compliance, compact SMBG footprint, and precise 146 V clamping - making it optimal for space-constrained automotive modules where consistent low-leakage performance and reflow robustness are mandatory.
Availability
SMBG90CAHE3/5B is available at Aetrix Electronics and suitable for automotive sensor systems, industrial programmable logic controllers, and telecom infrastructure equipment requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBG90CAHE3/5B 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, precision, and automotive-grade validation.
The SMBG series was developed specifically for high-density, AEC-Q101-compliant transient suppression in modern automotive and industrial electronics - prioritizing low-profile packaging, repeatable clamping, and zero-maintenance surge endurance.
FAQ
What is the clamping voltage of SMBG90CAHE3/5B and how is it measured?
The SMBG90CAHE3/5B has a maximum clamping voltage (VC) of 146 V, measured at a peak pulse current (IPPM) of 4.1 A using the standardized 10/1000 μs double-exponential waveform per ANSI/IEEE C62.35. This value represents the upper limit of voltage seen by downstream circuitry during worst-case surge events, and is confirmed per the manufacturer's electrical characteristics table in Document Number 88456.
Is SMBG90CAHE3/5B suitable for automotive applications?
Yes, SMBG90CAHE3/5B is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. Its 150 °C maximum junction temperature, MSL Level 1 reflow compatibility, and validation across temperature cycling, highly accelerated life testing (HALT), and surge endurance make it appropriate for engine control units, body electronics, and ADAS sensor interfaces where SMBG90CAHE3/5B replaces legacy TVS solutions lacking formal qualification.
Does SMBG90CAHE3/5B have polarity markings, and how is it installed on PCB?
No, SMBG90CAHE3/5B is a bidirectional TVS and carries no polarity marking - the SMBG (DO-215AA) package has symmetrical terminals with identical avalanche characteristics in both directions. During PCB layout, it is placed across the protected line and ground (or differential pair) without orientation dependency, simplifying assembly and eliminating risk of reverse installation.
What is the leakage current specification for SMBG90CAHE3/5B at its stand-off voltage?
The SMBG90CAHE3/5B exhibits a maximum reverse leakage current (ID) of 1.0 μA at its 90 V stand-off voltage (VWM), measured at 25 °C. This ultra-low leakage ensures minimal power loss and signal distortion in high-impedance monitoring circuits, such as those found in battery management systems or precision analog sensor front-ends where SMBG90CAHE3/5B is deployed for fail-safe overvoltage protection.
How does the SMBG90CAHE3/5B differ from unidirectional variants like SMBG90AHE3/5B?
The SMBG90CAHE3/5B is bidirectional with symmetrical breakdown in both polarities (VBR = 100–111 V), whereas SMBG90AHE3/5B is unidirectional and features a cathode band marking with forward voltage drop (~3.5 V at 50 A). SMBG90CAHE3/5B is selected for AC-coupled or floating lines (e.g., data buses, transformer-isolated interfaces); SMBG90AHE3/5B suits DC power rail protection where polarity is fixed and forward conduction may be relevant.
SMBG90CAHE3/5B 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):
- 90V
- Voltage - Breakdown (Min):
- 100V
- Voltage - Clamping (Max) @ Ipp:
- 146V
- Current - Peak Pulse (10/1000µs):
- 4.1A
- 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)
SMBG90CAHE3/5B FAQ
1.How can I place an order for SMBG90CAHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG90CAHE3/5B 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 SMBG90CAHE3/5B reliable?
The price and inventory of SMBG90CAHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG90CAHE3/5B is usually 5 days.
3.What payment methods are accepted for SMBG90CAHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG90CAHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG90CAHE3/5B?
SMBG90CAHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG90CAHE3/5B 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 SMBG90CAHE3/5B?
For technical support, including SMBG90CAHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG90CAHE3/5B requirements.
6.How does Aetrix verify that SMBG90CAHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG90CAHE3/5B 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 SMBG90CAHE3/5B meets industry standards.
7.What is the process for return or replacement of SMBG90CAHE3/5B?
All SMBG90CAHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG90CAHE3/5B, 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 SMBG90CAHE3/5B part is unused and in its original packaging.
Return procedure for SMBG90CAHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG90CAHE3/5B Tags
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