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Vishay General Semiconductor - Diodes Division SMBG11CA-E3/5B
- Part No.:
- SMBG11CA-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG11CA-E3/5B.pdf
- Description:
- TVS DIODE 11VWM 18.2VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,589
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Product details
Overview
SMBG11CA-E3/5B from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for clamping ESD and surge transients on signal/power lines. It features 11 V stand-off voltage (VWM), 12.2–13.5 V breakdown voltage (VBR) at 1 mA, 600 W peak pulse power (10/1000 µs), <1 µA reverse leakage at VWM, and 18.2 V maximum clamping voltage (VC) at 33 A peak pulse current - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMBG11CA-E3/5B datasheet, SMBG11CA-E3/5B pinout, SMBG11CA-E3/5B application, or SMBG11CA-E3/5B equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification, 150 °C junction temperature rating, low 18.2 V clamping at 33 A, 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, with identical VBR min/max (12.2–13.5 V) and VC (18.2 V) in either direction. Its glass-passivated junction ensures stable breakdown and low leakage (<1 µA at 11 V), while the low incremental surge resistance enables fast response to sub-nanosecond transients induced by inductive switching or ESD.
The device meets J-STD-020 MSL Level 1 (260 °C peak reflow), supports 100 A non-repetitive forward surge (unidirectional mode only), and maintains full functionality across –55 °C to +150 °C operating junction temperature - critical for under-hood automotive and industrial control environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 11 V - Maximum continuous reverse voltage before clamping begins; sets operating margin for 12 V nominal systems. |
| VBR (min/max) | 12.2 V / 13.5 V at 1 mA - Confirmed bidirectional breakdown window ensures consistent turn-on across polarity; tight tolerance supports predictable protection thresholds. |
| VC @ IPPM | 18.2 V at 33 A - Clamping voltage during 10/1000 µs surge; limits stress on downstream ICs like CAN transceivers or microcontrollers. |
| PPPM | 600 W - Peak pulse power handling capability per 10/1000 µs waveform; validated with 0.01 % duty cycle repetition. |
| ID @ VWM | <1 µA - Reverse leakage at stand-off voltage; minimizes standby power loss and avoids false triggering in high-impedance sensor lines. |
| TJ max | +150 °C - Maximum junction temperature rating; enables use in engine control units and motor drive enclosures without derating. |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, gull-wing lead form, 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 clamping node | Both terminals function identically; no cathode band marking; connects across protected line and ground or differential pair. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for safety-critical ECUs and ADAS sensors. |
| 600 W peak pulse power (10/1000 µs) | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth) when mounted on 5.0 mm × 5.0 mm copper pads - eliminates need for external series impedance in many cases. |
| Low clamping voltage (18.2 V @ 33 A) | Provides tighter voltage limiting than standard 12 V Zener diodes, protecting 16 V tolerant logic inputs and 3.3 V/5 V interface ICs without overvoltage damage. |
| MSL Level 1, 260 °C peak reflow | Enables single-pass lead-free reflow assembly without moisture-related popcorning or delamination - compatible with standard SMT production lines. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting LIN/CAN bus nodes and analog sensor outputs (e.g., pressure, temperature) from load-dump and ISO 7637-2 pulses in vehicle body control modules. IC Role / Device Role: Bidirectional clamping element placed between signal line and chassis ground to shunt transients before reaching MCU or transceiver. Use Value: Maintains signal integrity during 12 V system transients up to ±100 V, with clamping below 18.2 V to prevent latch-up in 5 V tolerant receivers. | Use Scenario: Safeguarding PLC analog input channels (4–20 mA, 0–10 V) against field-wiring-induced surges and electrostatic discharge in factory automation cabinets. IC Role / Device Role: Primary overvoltage clamp on each channel's signal path, paired with series current-limiting resistor and filter capacitor. Use Value: Limits transient energy to <600 W per event while sustaining <1 µA leakage - avoids DC offset errors and preserves measurement accuracy. |
| Telecom Line Interface | Consumer Device USB Port |
Use Scenario: Shielding RS-485 transceivers and Ethernet PHYs in base station backhaul equipment from lightning-induced surges on long cable runs. IC Role / Device Role: First-stage protection device bridging differential data pair to common-mode ground, absorbing common-mode transients. Use Value: Symmetrical bidirectional clamping ensures equal response to positive/negative surges, preserving differential signaling integrity during 10/1000 µs events. | Use Scenario: ESD protection for USB 2.0 D+/D− lines in portable media players and smart home hubs exposed to human-body-model (HBM) discharges. IC Role / Device Role: Low-capacitance TVS placed directly at connector, shunting ESD energy before it reaches USB controller IC. Use Value: Sub-1 µA leakage and 18.2 V clamping prevent data corruption during 8 kV contact ESD events while maintaining signal rise/fall times. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11CA-E3/5B | Same VWM (11 V), but lower PPPM = 600 W (same rating), higher VC = 19.9 V at 30.2 A; SMB (DO-214AA) package - 0.095" lead pitch vs. SMBG's 0.155". | Less effective clamping margin in high-current surges; slightly larger footprint may affect dense PCB layouts. | Select SMBJ11CA-E3/5B only if SMB footprint is already standardized and thermal pad area is constrained. |
| 1.5KE11CA | Higher PPPM = 1500 W, but axial DO-201 package; VC = 18.2 V at 82.5 A; not surface-mountable and lacks AEC-Q101 qualification. | Requires through-hole assembly and board real estate; unsuitable for automotive SMT production or space-constrained designs. | Choose 1.5KE11CA only for prototyping or legacy through-hole systems where manual assembly is acceptable. |
Compared with SMBJ11CA-E3/5B and 1.5KE11CA, SMBG11CA-E3/5B delivers superior automotive compliance (AEC-Q101), tighter clamping (18.2 V), and optimized SMT manufacturability in the smaller SMBG outline - making it preferred for new automotive and industrial designs requiring zero rework risk and high-volume placement.
Availability
SMBG11CA-E3/5B is available at Aetrix Electronics and suitable for automotive electronics, industrial programmable logic controllers, and telecom infrastructure requiring stable component supply with AEC-Q101 assurance and RoHS compliance.
Supply support for SMBG11CA-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, precision, and automotive-grade qualification.
The SMBG series was engineered specifically for high-reliability surface-mount transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where bidirectional clamping, AEC-Q101 validation, and robust surge handling are mandatory.
FAQ
What is the clamping voltage of SMBG11CA-E3/5B and how is it measured?
The SMBG11CA-E3/5B has a maximum clamping voltage (VC) of 18.2 V, measured at a peak pulse current (IPPM) of 33 A using the standardized 10/1000 µs double-exponential surge waveform. This value is guaranteed across the full operating temperature range and reflects the voltage seen by downstream circuitry during worst-case transient events - critical for ensuring compatibility with 16 V-tolerant ICs in automotive applications.
Is SMBG11CA-E3/5B suitable for automotive applications?
Yes, SMBG11CA-E3/5B is AEC-Q101 qualified and rated for operation from –55 °C to +150 °C junction temperature. Its bidirectional symmetry, low leakage (<1 µA), and validated performance under ISO 7637-2 pulse tests make it appropriate for engine control units, body electronics, and ADAS sensor interfaces where reliability under thermal and electrical stress is mandatory.
Does SMBG11CA-E3/5B have polarity markings?
No, SMBG11CA-E3/5B is a bidirectional TVS diode and carries no cathode band or polarity marking. Both terminals are functionally identical, enabling straightforward placement across differential lines or between signal and ground without orientation concerns - simplifying automated optical inspection and reducing assembly errors.
What is the package type and lead finish of SMBG11CA-E3/5B?
SMBG11CA-E3/5B uses the SMBG (DO-215AA) surface-mount package with gull-wing leads and matte tin plating, compliant with J-STD-002 and JESD 22-B102 solderability standards. The package measures 4.57 mm × 3.94 mm × 2.10 mm and supports MSL Level 1 handling with 260 °C peak reflow profile - ideal for high-yield SMT manufacturing.
How does SMBG11CA-E3/5B differ from unidirectional variants like SMBG11A-E3/5B?
SMBG11CA-E3/5B provides symmetrical clamping in both directions (VBR = 12.2–13.5 V, VC = 18.2 V), whereas SMBG11A-E3/5B is unidirectional with cathode marking and only clamps in reverse bias. The "CA" suffix denotes bidirectionality, making SMBG11CA-E3/5B essential for AC-coupled lines, differential buses, or any application where polarity reversal or common-mode transients occur.
SMBG11CA-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):
- 11V
- Voltage - Breakdown (Min):
- 12.2V
- Voltage - Clamping (Max) @ Ipp:
- 18.2V
- Current - Peak Pulse (10/1000µs):
- 33A
- 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)
SMBG11CA-E3/5B FAQ
1.How can I place an order for SMBG11CA-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG11CA-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 SMBG11CA-E3/5B reliable?
The price and inventory of SMBG11CA-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 SMBG11CA-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBG11CA-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG11CA-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG11CA-E3/5B?
SMBG11CA-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG11CA-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 SMBG11CA-E3/5B?
For technical support, including SMBG11CA-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG11CA-E3/5B requirements.
6.How does Aetrix verify that SMBG11CA-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG11CA-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 SMBG11CA-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBG11CA-E3/5B?
All SMBG11CA-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG11CA-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 SMBG11CA-E3/5B part is unused and in its original packaging.
Return procedure for SMBG11CA-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG11CA-E3/5B Tags
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