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SMBJ20A
+BOMTVS DIODE 23.4VWM 32.4VC DO214AA
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ManufacturerRectron USA
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Mfr. Part #SMBJ20A
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Datasheet SMBJ20A DataSheet
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Package DO-214AA
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In Stock2477
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Specifications
| Attribute | Value |
| Package | Tape & Reel (TR) |
| Series | SMBJ |
| ProductStatus | Active |
| Type | Zener |
| UnidirectionalChannels | 1 |
| Voltage-ReverseStandoff(Typ) | 23.4V |
| Voltage-Clamping(Max)@Ipp | 32.4V |
| Power-PeakPulse | 600W |
| Applications | General Purpose |
| OperatingTemperature | -55°C ~ 150°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | DO-214AA, SMB |
Overview
Description
### Key Features:
- Breakdown Voltage (VBR): 22.2V (min) to 24.5V (max)
- Standoff Voltage (VRWM): 20V
- Peak Pulse Power (PPP): 600W (8/20μs waveform)
- Low Clamping Voltage: Fast response (<1ns)
- Package: DO-214AA (SMB)
### Applications:
- ESD protection in communication ports (USB, Ethernet)
- Surge suppression in power supplies & automotive circuits
- Overvoltage protection in industrial & consumer electronics
The SMBJ20A offers robust bidirectional protection, ensuring reliability in harsh environments. Its compact SMB package makes it ideal for space-constrained designs.
For detailed specs, refer to the datasheet from manufacturers like Littelfuse, Vishay, or STMicroelectronics.
Equivalent
- P6SMB20A (Littelfuse/ON Semiconductor)
- SMBJ20CA (Bidirectional, Vishay)
- 1.5SMC20A (Higher power, SMC package)
- SMAJ20A (Lower power, SMA package)
- ESD20V (STMicroelectronics, ESD protection variant)
Check voltage, power rating, and package compatibility before substitution.
Features
- Voltage Rating: Standoff voltage of 20V, breakdown voltage (min) 22.2V, clamping voltage 32.4V (at 1A).
- Power Handling: 600W peak pulse power (8/20µs waveform).
- Bidirectional Protection: Guards against both positive and negative voltage transients.
- Fast Response: Reacts in picoseconds to suppress surges (ESD, lightning, etc.).
- Low Leakage: Typically <1µA at standoff voltage.
- Package: SMB (DO-214AA) for compact PCB mounting.
- Applications: Protects sensitive electronics (USB, power supplies, automotive systems).
Ideal for overvoltage protection with robust performance in a small form factor.
Manufacturer
Littelfuse is a well-established American electronics manufacturer, founded in 1927 and headquartered in Chicago, Illinois. The company is known for producing high-reliability components, including fuses, TVS diodes, varistors, and other protection devices for automotive, industrial, and consumer electronics.
The SMBJ20A is part of Littelfuse’s SMBJ series, designed to protect sensitive circuits from voltage spikes and transients. It is widely used in power supplies, communication systems, and automotive applications.
Littelfuse is recognized for its innovation, quality, and compliance with industry standards, making it a trusted supplier in electronics protection solutions.
Application
1. Power Supplies – Safeguards against surges in AC/DC converters.
2. Communication Equipment – Protects data lines (RS-232, Ethernet) from ESD and lightning-induced transients.
3. Automotive Electronics – Shields CAN bus, sensors, and infotainment systems from load-dump surges.
4. Industrial Controls – Secures PLCs and I/O modules from voltage transients.
5. Consumer Electronics – Guards USB ports, HDMI, and other interfaces.
Its 20V breakdown voltage and fast response make it ideal for clamping transient overvoltages in low-voltage circuits.
