My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMBG11AHE3/52
- Part No.:
- SMBG11AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG11AHE3/52.pdf
- Description:
- TVS DIODE 11VWM 18.2VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,305
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBG11AHE3/52 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 11 V stand-off voltage (VWM), 12.2–13.5 V breakdown voltage (VBR) at 1 mA, 18.2 V maximum clamping voltage (VC) at 33 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - deployed on power rails and signal lines in automotive ECUs and industrial sensor interfaces.
For engineers reviewing the SMBG11AHE3/52 datasheet, SMBG11AHE3/52 pinout, SMBG11AHE3/52 application, or SMBG11AHE3/52 equivalent, key selection criteria include its AEC-Q101 qualification, 150 °C max junction temperature, low 5.0 μA reverse leakage at VWM, matte tin-plated leads compliant with J-STD-002, and MSL Level 1 moisture sensitivity rating for high-reliability surface-mount assembly.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 GΩ) below VWM = 11 V, then rapidly avalanches to limit transient voltages above VBR = 12.2–13.5 V. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance.
The device is rated for 100 A non-repetitive forward surge current (IFSM) at 8.3 ms half-sine, supports automated placement via low-profile SMBG package, and meets UL 497B recognition (QVGQ2) for telecom and industrial protectors - with thermal resistance RθJA = 100 °C/W on 5.0 mm × 5.0 mm copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 11 V - Maximum continuous reverse operating voltage before conduction begins; defines safe working range for protected circuit. |
| VBR @ IT = 1 mA | 12.2–13.5 V - Breakdown voltage tolerance band; determines precise clamping onset threshold under standardized test conditions. |
| VC @ IPPM = 33 A | 18.2 V - Clamped voltage during 600 W transient; limits stress on downstream ICs like microcontrollers or CAN transceivers. |
| ID @ VWM | 5.0 μA - Reverse leakage current at stand-off voltage; ensures minimal standby power loss and signal integrity in high-impedance nodes. |
| PPPM | 600 W - Peak pulse power handling with 10/1000 μs waveform; enables suppression of ESD, lightning-induced surges, and inductive switching spikes. |
| TJ max. | 150 °C - Maximum junction temperature; supports operation in under-hood automotive environments and sealed industrial enclosures. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JEDEC standards. |
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); UL 94 V-0 molding compound; matte tin-plated leads solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Anode-side connection point for unidirectional clamping path | Connected to protected line (e.g., 12 V rail); avalanche conduction occurs when line voltage exceeds VBR relative to ground. |
| Anode | Reference/ground return terminal | Must be tied to system ground or low-impedance reference plane to complete clamping loop; layout requires short, wide traces to minimize inductance. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables reliable suppression of ISO 7637-2 Pulse 1/2a/5a transients in 12 V automotive systems without derating. |
| AEC-Q101 qualified | Validated for automotive electronics use including engine control, body modules, and ADAS sensors requiring long-term field reliability. |
| MSL Level 1 (260 °C peak reflow) | Supports standard lead-free reflow profiles without preconditioning; eliminates moisture-related popcorning during assembly. |
| Glass passivated junction | Provides stable VBR tolerance and low leakage across temperature (-55 to +150 °C), critical for precision analog front-ends. |
| UL 497B recognized (QVGQ2) | Meets safety requirements for telecom line interface protection, enabling direct use in PoE-powered devices and base station I/O. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V supply inputs of engine control units (ECUs) against load dump and alternator ripple transients per ISO 7637-2. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed between battery rail and local regulator input. Use Value: Limits clamped voltage to ≤18.2 V during 33 A surge, preventing damage to downstream LDOs and MCU power domains. | Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loops) of pressure/temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional TVS (used with series resistor) guarding low-bandwidth analog signals against ESD and cable discharge events. Use Value: 5.0 μA leakage at 11 V ensures <0.1 mV error contribution in 10 kΩ sense networks, preserving measurement accuracy. |
| Telecom Interface Protection | Consumer USB Port ESD Protection |
Use Scenario: Shielding RS-485 transceiver I/O pins in network switches and base station backhaul equipment exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary clamping device on differential bus lines, coordinated with common-mode chokes and secondary filtering. Use Value: UL 497B recognition confirms compliance for telecom safety certification; 18.2 V clamping avoids violating RS-485 receiver common-mode range (±7 V). | Use Scenario: Adding secondary-level ESD protection on VBUS and D+/D− lines of USB 2.0 ports in smart home hubs and portable medical devices. IC Role / Device Role / Timing Role: Fast-response shunt clamp placed after primary polymer PTC fuse to handle ±8 kV contact discharge (IEC 61000-4-2). Use Value: Sub-nanosecond response time and 18.2 V clamping prevent latch-up in USB PHY ICs while maintaining signal integrity up to 480 Mbps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11A-E3/52 | Same VWM (11 V), identical SMB (DO-214AA) package footprint but 1.6 mm taller; 600 W rating, 18.2 V VC at 33 A. | SMBJ has higher RθJA (110 °C/W vs. 100 °C/W) and no AEC-Q101 qualification; not approved for automotive under-hood use. | Select SMBJ11A-E3/52 only for cost-sensitive industrial applications where AEC-Q101 is not required and board height allows. |
| SMCJ11AHE3/52 | Same VWM and VC, but SMC (DO-214AB) package: larger body (7.11 mm × 6.22 mm), 1500 W PPPM, higher IPPM (69 A). | Higher power handling suits heavy-duty industrial motor drives; incompatible PCB footprint due to larger pad layout and center cathode tab. | Choose SMCJ11AHE3/52 when surge energy exceeds 600 W capability or when system-level testing demands >100 A single-pulse immunity. |
Compared with SMBJ11A-E3/52 and SMCJ11AHE3/52, SMBG11AHE3/52 uniquely balances AEC-Q101 qualification, compact SMBG footprint, and 600 W capability - making it optimal for space-constrained automotive modules where reliability and reflow compatibility are mandatory.
Availability
SMBG11AHE3/52 is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface protection, and telecom line card development requiring stable component supply and full traceability.
Supply support for SMBG11AHE3/52 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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMBG TransZORB® series is engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where AEC-Q101 validation, low-profile packaging, and repeatable clamping performance are essential.
FAQ
What is the maximum clamping voltage of SMBG11AHE3/52 under specified test conditions?
The SMBG11AHE3/52 has a maximum clamping voltage (VC) of 18.2 V when subjected to a 10/1000 μs waveform with a peak pulse current (IPPM) of 33 A. This value is measured per ANSI/IEEE C62.35 and reflects the actual voltage seen by protected circuitry during transient events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is SMBG11AHE3/52 qualified for automotive applications?
Yes, SMBG11AHE3/52 is AEC-Q101 qualified, as confirmed in the Vishay datasheet (Document Number: 88456, Revision: 09-Jan-2024). This qualification covers stress tests including temperature cycling, high-temperature reverse bias, and ESD - validating its suitability for under-hood and chassis-mounted automotive electronics such as body control modules and ADAS sensor interfaces.
What does the "HE3" suffix indicate in SMBG11AHE3/52?
The "HE3" suffix in SMBG11AHE3/52 denotes RoHS-compliant construction with AEC-Q101 qualification and matte tin-plated leads meeting J-STD-002 solderability requirements. It also indicates compliance with JESD 201 Class 2 whisker resistance and UL 497B recognition (QVGQ2) - distinguishing it from industrial-grade "E3" variants lacking automotive qualification.
Can SMBG11AHE3/52 be used in bidirectional configurations?
No, SMBG11AHE3/52 is a unidirectional TVS diode, identified by the "A" (not "CA") suffix. Bidirectional operation requires the "CA" variant (e.g., SMBG11CA). Using SMBG11AHE3/52 in reverse-biased configurations risks permanent failure, as its anode-cathode structure is optimized for clamping only in one polarity relative to ground.
What is the thermal resistance of SMBG11AHE3/52, and how does it affect layout?
SMBG11AHE3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 5.0 mm × 5.0 mm copper pads per terminal. To maintain safe operation at full 600 W pulse loading, PCB layout must provide adequate copper area and thermal vias - undersized pads increase junction temperature and risk thermal runaway during repetitive surges.
SMBG11AHE3/52 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):
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG11AHE3/52 FAQ
1.How can I place an order for SMBG11AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG11AHE3/52 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 SMBG11AHE3/52 reliable?
The price and inventory of SMBG11AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG11AHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBG11AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG11AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG11AHE3/52?
SMBG11AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG11AHE3/52 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 SMBG11AHE3/52?
For technical support, including SMBG11AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG11AHE3/52 requirements.
6.How does Aetrix verify that SMBG11AHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG11AHE3/52 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 SMBG11AHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBG11AHE3/52?
All SMBG11AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG11AHE3/52, 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 SMBG11AHE3/52 part is unused and in its original packaging.
Return procedure for SMBG11AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG11AHE3/52 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
