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Vishay General Semiconductor - Diodes Division SMBG9.0CA-E3/52
- Part No.:
- SMBG9.0CA-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG9.0CA-E3/52.pdf
- Description:
- TVS DIODE 9VWM 15.4VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,316
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Product details
Overview
SMBG9.0CA-E3/52 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 a 9.0 V stand-off voltage (VWM), 10.0–11.1 V breakdown voltage (VBR) at 1 mA, 15.4 V maximum clamping voltage (VC) at 39.0 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - used to protect automotive sensor interfaces and industrial I/O lines against ESD and inductive switching surges.
For engineers reviewing the SMBG9.0CA-E3/52 datasheet, SMBG9.0CA-E3/52 pinout, SMBG9.0CA-E3/52 application, or SMBG9.0CA-E3/52 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, low clamping ratio (VC/VBR ≈ 1.47), MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, with identical VBR, VC, and IPPM specifications for positive and negative transients. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and fast response time (<1.0 ns), enabling protection of high-speed analog and digital signal paths without signal distortion.
The device is rated for TJ = –55 °C to +150 °C operation and meets UL 497B recognition (QVGQ2) for surge protectors. Thermal resistance is RθJA = 100 °C/W (on 0.2" × 0.2" pads), supporting reliable power dissipation during repetitive 0.01% duty-cycle surges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse operating voltage before clamping begins; defines safe signal swing margin for protected line. |
| VBR (min/max) | 10.0 V / 11.1 V at IT = 1 mA - Ensures consistent turn-on threshold across production lot; tight 10% tolerance supports predictable protection level. |
| VC @ IPPM | 15.4 V at 39.0 A - Clamped voltage seen by downstream circuit during 600 W transient; limits stress on 12 V-rated ICs and MOSFETs. |
| PPPM | 600 W - Peak surge power handling with 10/1000 μs waveform; sufficient for ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 3 events. |
| IPPM | 39.0 A - Corresponding peak current at VC; enables robust protection of CAN, LIN, and RS-485 bus lines with minimal voltage overshoot. |
| TJ max. | +150 °C - Junction temperature limit compatible with under-hood automotive environments and industrial enclosures without forced cooling. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including HTOL, TC, and ESD testing; suitable for safety-critical ECUs and ADAS sensors. |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, bidirectional configuration with no polarity marking. Case dimensions: 4.57 mm × 3.94 mm × 2.10 mm (L × W × H); matte tin-plated leads, J-STD-002 solderable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional terminal pair | No cathode band; terminals interchangeable - enables single-component protection of AC-coupled or differential signal lines (e.g., RS-485, CAN-H/CAN-L). |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Supports repeated surge events per ISO 7637-2 without degradation; eliminates need for external series impedance in many 12 V system designs. |
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and infotainment - reduces qualification effort for Tier 1 suppliers. |
| MSL Level 1 (260 °C peak reflow) | Compatible with standard lead-free reflow profiles; no pre-baking required prior to assembly. |
| Glass passivated junction | Ensures stable VBR and low leakage (<1.0 μA) over lifetime; prevents parameter drift in humid or high-temperature environments. |
| UL 497B recognized (QVGQ2) | Meets safety requirements for telecom and industrial surge protection modules - simplifies end-equipment certification. |
Applications
| Automotive Sensor Interface | Industrial RS-485 Bus |
|---|---|
Use Scenario: Protecting ABS wheel speed sensor outputs from load-dump and alternator ripple-induced transients in 12 V vehicle systems. IC Role / Device Role: Bidirectional clamping element placed between sensor output and microcontroller ADC input. Use Value: Limits voltage to ≤15.4 V during 39 A surge, preventing latch-up or damage to 5 V or 3.3 V ADC front-ends while maintaining signal integrity. |
Use Scenario: Safeguarding RS-485 transceivers in factory automation PLCs exposed to motor drive noise and ground potential differences. IC Role / Device Role: Line-to-line and line-to-ground TVS on differential bus pairs (A/B) and common-mode lines. Use Value: Symmetric clamping ensures equal protection for both polarities of differential signals, preserving common-mode rejection and data integrity during EFT bursts. |
| Consumer USB-C Power Delivery | Telecom DSL Line Interface |
Use Scenario: Transient suppression on VBUS and CC lines of USB-C receptacles subjected to hot-plug ESD and cable discharge events. IC Role / Device Role: Secondary-level protection after primary ESD array; handles higher-energy surges beyond IEC 61000-4-2. Use Value: Withstands 600 W surges while adding <1 pF junction capacitance - avoids signal integrity loss on 5 Gbps USB 3.2 Gen 2 lanes. |
Use Scenario: Front-end protection of ADSL/VDSL line drivers against lightning-induced surges on twisted-pair telephone lines. IC Role / Device Role: Bidirectional shunt device across line transformer secondary windings. Use Value: 15.4 V clamping voltage aligns with 12 V rail tolerance of line driver ICs; UL 497B recognition satisfies telecom safety compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0CA | Same VWM (9.0 V), but lower PPPM = 600 W (same rating), higher VC = 15.4 V (identical), but SMBJ package has larger footprint (4.57 mm × 3.94 mm vs. SMBG's 4.57 mm × 3.94 mm - same outline but different thermal pad design). | SMBJ9.0CA uses DO-214AA package with larger thermal pad area; better suited for high-repetition-rate surges in power supply rails. | Select SMBG9.0CA-E3/52 when board space is constrained and MSL Level 1 compliance is mandatory; SMBJ9.0CA preferred for higher thermal mass requirements. |
| 1.5KE9.1CA | Higher PPPM = 1500 W, axial-leaded DO-201AD package, VC = 14.5 V at 103 A - tighter clamping ratio but incompatible with SMT assembly. | Designed for through-hole mounting in legacy telecom surge modules; not suitable for automated SMT production or compact PCBs. | Choose SMBG9.0CA-E3/52 for new SMT designs requiring AEC-Q101 and RoHS compliance; 1.5KE9.1CA only where manual assembly and higher surge margin are prioritized. |
Compared with SMBJ9.0CA and 1.5KE9.1CA, SMBG9.0CA-E3/52 delivers identical electrical protection performance in a smaller, AEC-Q101-qualified surface-mount package optimized for automotive and industrial SMT lines - offering superior manufacturability without sacrificing clamping accuracy or surge rating.
Availability
SMBG9.0CA-E3/52 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial communication bus hardening, and consumer power interface surge suppression requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMBG9.0CA-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 optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The SMBG series was developed for high-reliability surface-mount transient suppression in automotive and industrial environments - delivering AEC-Q101 qualification, low-profile packaging, and precise clamping in a single bidirectional device.
FAQ
What is the clamping voltage of SMBG9.0CA-E3/52 at its rated peak pulse current?
The SMBG9.0CA-E3/52 has a maximum clamping voltage (VC) of 15.4 V at its rated peak pulse current (IPPM) of 39.0 A, measured with a 10/1000 μs waveform. This value is guaranteed across temperature and production lot, ensuring consistent protection for downstream 12 V-rated components. The SMBG9.0CA-E3/52 maintains this clamping performance under repetitive surge conditions up to 0.01% duty cycle.
Is SMBG9.0CA-E3/52 suitable for automotive applications?
Yes, SMBG9.0CA-E3/52 is AEC-Q101 qualified and rated for operation from –55 °C to +150 °C, making it suitable for under-hood and cabin-mounted automotive electronics. Its bidirectional symmetry, low leakage (<1.0 μA), and UL 497B recognition support use in CAN, LIN, and sensor interface protection per ISO 16750-2. The SMBG9.0CA-E3/52 is explicitly listed in Vishay's AEC-Q101 qualified product matrix.
Does SMBG9.0CA-E3/52 have polarity markings?
No, SMBG9.0CA-E3/52 is a bidirectional TVS diode and carries no cathode band or polarity marking. Its symmetrical construction allows either terminal to serve as anode or cathode depending on transient polarity - simplifying layout for differential or AC-coupled lines. This distinguishes it from unidirectional variants like SMBG9.0A, which feature a visible cathode band.
What is the maximum reverse leakage current for SMBG9.0CA-E3/52 at its stand-off voltage?
The SMBG9.0CA-E3/52 exhibits a maximum reverse leakage current (ID) of 1.0 μA at its stand-off voltage (VWM) of 9.0 V and TA = 25 °C. This low leakage ensures minimal power loss and signal loading on protected lines, especially critical in battery-powered sensor nodes and high-impedance analog circuits. The SMBG9.0CA-E3/52 maintains leakage below 5.0 μA up to +85 °C.
What package type does SMBG9.0CA-E3/52 use, and is it RoHS compliant?
SMBG9.0CA-E3/52 uses the SMBG (DO-215AA) surface-mount package - a low-profile, gull-wing variant with 4.57 mm × 3.94 mm footprint and 2.10 mm height. The "E3" suffix confirms RoHS compliance per EU Directive 2011/65/EU, with matte tin-plated leads meeting J-STD-002 solderability requirements. The SMBG9.0CA-E3/52 is also halogen-free and complies with Vishay's material categorization standard (doc# 99912).
SMBG9.0CA-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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 9V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 15.4V
- Current - Peak Pulse (10/1000µs):
- 39A
- 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)
SMBG9.0CA-E3/52 FAQ
1.How can I place an order for SMBG9.0CA-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG9.0CA-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 SMBG9.0CA-E3/52 reliable?
The price and inventory of SMBG9.0CA-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 SMBG9.0CA-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBG9.0CA-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG9.0CA-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG9.0CA-E3/52?
SMBG9.0CA-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG9.0CA-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 SMBG9.0CA-E3/52?
For technical support, including SMBG9.0CA-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG9.0CA-E3/52 requirements.
6.How does Aetrix verify that SMBG9.0CA-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG9.0CA-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 SMBG9.0CA-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBG9.0CA-E3/52?
All SMBG9.0CA-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG9.0CA-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 SMBG9.0CA-E3/52 part is unused and in its original packaging.
Return procedure for SMBG9.0CA-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG9.0CA-E3/52 Tags
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