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Vishay General Semiconductor - Diodes Division SMBG22CA-E3/5B
- Part No.:
- SMBG22CA-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG22CA-E3/5B.pdf
- Description:
- TVS DIODE 22VWM 35.5VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,390
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Product details
Overview
SMBG22CA-E3/5B from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for clamping voltage transients on signal and power lines. It features 22 V stand-off voltage (VWM), 24.4–26.9 V breakdown voltage (VBR) at 1 mA, 600 W peak pulse power (10/1000 µs), <1 µA reverse leakage at VWM, and clamps to ≤35.5 V at 16.9 A peak pulse current - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMBG22CA-E3/5B datasheet, SMBG22CA-E3/5B pinout, SMBG22CA-E3/5B application, or SMBG22CA-E3/5B equivalent, key selection criteria include bidirectional clamping capability, 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-clamped crowbar during ESD or surge events, leveraging an avalanche breakdown mechanism with symmetrical conduction in both directions. Its bidirectional architecture eliminates polarity dependency, enabling direct placement across differential or AC-coupled lines without orientation constraints.
Designed for high-reliability environments, SMBG22CA-E3/5B meets AEC-Q101 stress testing requirements and achieves MSL Level 1 per J-STD-020 with 260 °C lead-free reflow peak. Thermal resistance is specified at RθJA = 100 °C/W (on 5.0 mm × 5.0 mm pads) and RθJL = 20 °C/W, supporting sustained operation up to TJ = 150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 22 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin for 24 V nominal systems. |
| VBR (min/max) | 24.4 V / 26.9 V at 1 mA - Confirmed breakdown threshold range ensures predictable turn-on under surge conditions. |
| IPPM | 16.9 A (10/1000 µs) - Peak surge current handling capacity determines minimum trace width and PCB layout robustness. |
| VC @ IPPM | ≤35.5 V - Clamped voltage level protects downstream ICs rated for ≤36 V absolute maximum input. |
| PPPM | 600 W - Peak pulse power rating validates suitability for IEC 61000-4-5 Level 3 (1 kV/2 Ω) surge immunity. |
| TJ max | +150 °C - Enables deployment in under-hood automotive or high-temperature industrial enclosures without derating. |
| Leakage @ VWM | <1 µA - Negligible standby current draw preserves battery life in always-on sensor nodes. |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, gull-wing leads, matte tin-plated, RoHS-compliant, AEC-Q101 qualified. Dimensions: 6.48 mm × 3.94 mm × 2.41 mm (L × W × H); mounting pad layout per Vishay spec: 0.2" × 0.2" (5.0 mm × 5.0 mm) copper area per terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Common reference node for symmetrical clamping; no polarity marking required on device body. |
| Cathode | Transient return path (bidirectional) | Electrically identical to Anode in CA-series devices; terminals interchangeable in circuit layout. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 surge testing up to 1 kV open-circuit / 0.5 kA short-circuit current in industrial and automotive applications. |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock - suitable for engine control, ADAS sensors, and infotainment power rails. |
| Low profile SMBG package | Enables high-density PCB layouts with 0.76 mm max height; compatible with standard SMT pick-and-place equipment and reflow profiles. |
| MSL Level 1, 260 °C peak | Eliminates moisture sensitivity concerns and pre-bake requirements, reducing manufacturing cost and cycle time in high-volume production. |
| Glass passivated junction | Ensures stable VBR and low leakage over lifetime, even under thermal cycling and humidity exposure in harsh environments. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role: Bidirectional clamping element placed between signal line and ground, absorbing energy before it reaches the protected IC. Use Value: Maintains signal integrity by limiting transient voltage to ≤35.5 V while surviving repetitive 600 W surges - critical for AEC-Q100 Grade 2 compliance. | Use Scenario: Shielding digital input modules in programmable logic controllers from inductive kickback caused by relay and solenoid switching. IC Role / Device Role: Primary overvoltage clamp on 24 V DC input channels, coordinated with series impedance to limit current into downstream optocouplers. Use Value: Enables >100,000 surge cycles without degradation due to low incremental surge resistance and glass-passivated junction stability. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Safeguarding RS-485 transceivers and Ethernet PHYs against lightning-induced surges on outdoor communication lines. IC Role / Device Role: First-stage TVS on differential pairs, working with common-mode chokes to divert common-mode energy to chassis ground. Use Value: Symmetrical VBR (24.4–26.9 V) ensures balanced clamping on both A/B lines, preserving differential signaling integrity during transients. | Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machines and HVAC blowers connected to microcontroller GPIOs. IC Role / Device Role: Low-capacitance (<50 pF typical) bidirectional clamp across motor driver outputs and MCU sense lines. Use Value: Sub-1 µA leakage at 22 V prevents false triggering of low-power sleep modes, extending appliance standby battery life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ22CA | Same VWM/VBR/PPPM, but SMB (DO-214AA) package - 0.11" wider, 0.02" taller, higher RθJA (125 °C/W). | Less suitable for ultra-dense layouts; requires larger pad footprint and may need thermal relief adjustment. | Select SMBJ22CA only if legacy board design uses SMB footprint or when higher surge margin is needed via external heatsinking. |
| SMCJ22CA | Same electrical specs, but SMC (DO-214AB) package - 2× PCB area, 1000 W PPPM, RθJA = 60 °C/W. | Over-specified for space-constrained designs; preferred where long-term reliability under repeated surges is prioritized over size. | Choose SMCJ22CA for mission-critical industrial controls requiring >100,000 surge cycles or extended thermal margin at 125 °C ambient. |
Compared with SMBJ22CA and SMCJ22CA, SMBG22CA-E3/5B delivers optimal balance of compact SMBG footprint, AEC-Q101 qualification, and proven 600 W surge handling - making it the preferred choice for new automotive and high-density industrial designs where board space and qualification rigor are primary constraints.
Availability
SMBG22CA-E3/5B is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer appliance motor control requiring stable component supply and full traceability.
Supply support for SMBG22CA-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 TRANSZORB® series targets high-reliability transient suppression in automotive, industrial, and telecom systems - engineered for fast response, low clamping voltage, and robust surge endurance under real-world thermal and mechanical stress.
FAQ
What is the polarity configuration of SMBG22CA-E3/5B?
SMBG22CA-E3/5B is a bidirectional TVS diode with symmetrical avalanche characteristics in both forward and reverse directions. It has no cathode band marking and both terminals serve as interchangeable transient return paths - eliminating orientation constraints during automated placement and simplifying PCB layout for differential or AC-coupled signals.
Does SMBG22CA-E3/5B meet automotive qualification standards?
Yes, SMBG22CA-E3/5B is AEC-Q101 qualified, having passed stress tests including temperature cycling, high-temperature operating life, and mechanical shock. This certification confirms its suitability for automotive applications such as engine control units, ADAS sensor interfaces, and body electronics where reliability under thermal and vibration stress is mandatory.
What is the maximum clamping voltage of SMBG22CA-E3/5B at rated surge current?
The maximum clamping voltage (VC) of SMBG22CA-E3/5B is 35.5 V at 16.9 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and ensures protected ICs with 36 V absolute maximum ratings remain within safe operating limits during surge events.
How does the SMBG package differ from SMB or SMC in thermal performance?
The SMBG (DO-215AA) package used by SMBG22CA-E3/5B offers RθJA = 100 °C/W on 5.0 mm × 5.0 mm pads - better than SMB (125 °C/W) but less efficient than SMC (60 °C/W). Its optimized gull-wing leadform supports fine-pitch placement while maintaining sufficient thermal dissipation for 600 W pulses in compact automotive and industrial modules.
Is SMBG22CA-E3/5B compatible with lead-free reflow processes?
Yes, SMBG22CA-E3/5B is rated for MSL Level 1 per J-STD-020 and supports peak reflow temperatures up to 260 °C. Its matte tin-plated leads comply with J-STD-002 and JESD 22-B102 solderability standards, and it passes JESD 201 Class 2 whisker testing - ensuring robust interconnect reliability in high-volume lead-free manufacturing.
SMBG22CA-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):
- 22V
- Voltage - Breakdown (Min):
- 24.4V
- Voltage - Clamping (Max) @ Ipp:
- 35.5V
- Current - Peak Pulse (10/1000µs):
- 16.9A
- 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)
SMBG22CA-E3/5B FAQ
1.How can I place an order for SMBG22CA-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG22CA-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 SMBG22CA-E3/5B reliable?
The price and inventory of SMBG22CA-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 SMBG22CA-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBG22CA-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG22CA-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG22CA-E3/5B?
SMBG22CA-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG22CA-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 SMBG22CA-E3/5B?
For technical support, including SMBG22CA-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG22CA-E3/5B requirements.
6.How does Aetrix verify that SMBG22CA-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG22CA-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 SMBG22CA-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBG22CA-E3/5B?
All SMBG22CA-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG22CA-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 SMBG22CA-E3/5B part is unused and in its original packaging.
Return procedure for SMBG22CA-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG22CA-E3/5B Tags
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