SMAJ33A

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SMAJ33A

+BOM

TVS DIODE 38.7VWM 53.3VC DO214AC

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Specifications

Attribute Value
Package Tape & Reel (TR)
Series SMAJ
ProductStatus Active
Type Zener
UnidirectionalChannels 1
Voltage-ReverseStandoff(Typ) 33V
Voltage-Clamping(Max)@Ipp 53.3V
Power-PeakPulse 400W
Applications General Purpose
OperatingTemperature -55°C ~ 150°C (TJ)
MountingType Surface Mount
Package/Case DO-214AC, SMA

Overview

Description

The SMAJ33A is a 33V unidirectional TVS diode designed to protect sensitive electronics from transient voltage spikes (like ESD, lightning, or inductive load switching). Key features:
- Voltage Rating: 33V (standoff)
- Peak Pulse Power: 400W (8/20µs waveform)
- Low Clamping Voltage: Fast response (<1ps) to divert excess energy
- Package: SMA (DO-214AC) for compact PCB mounting
Applications:
- Surge protection in power lines, communication ports, and automotive systems.
- Safeguards ICs, sensors, and other components from voltage transients.
Advantages:
- High reliability, RoHS-compliant, and cost-effective for circuit protection.
For bidirectional protection, consider the SMAJ33CA variant. Always verify datasheet specs for your design.

Equivalent

Equivalent products to the SMAJ33A (33V TVS diode) include:
- SMBJ33A (higher power)
- SMCJ33A (even higher power)
- P6KE33A (similar specs)
- 1.5KE33A (higher surge rating)
- Littelfuse SMAJ33A (same part, different brand)
These are bidirectional TVS diodes with a 33V breakdown voltage, used for transient voltage suppression. Check datasheets for exact specs.

Pinout

The SMAJ33A is a transient voltage suppressor (TVS) diode designed for surge protection.
- Pin Count: 2 (standard DO-214AC (SMA) package)
- Function: Protects circuits from voltage spikes by clamping excessive voltage (e.g., ESD, lightning).
- Key Parameters:
- Breakdown Voltage: 36.7V (min)
- Clamping Voltage: 53.3V (at 10A)
- Peak Pulse Power: 400W (8/20µs pulse)
It is commonly used in power supplies, communication lines, and automotive electronics for transient suppression.

Manufacturer

The SMAJ33A is manufactured by Littelfuse, a leading global company specializing in circuit protection, power control, and sensing technologies. Littelfuse is known for producing high-quality electronic components, including TVS diodes like the SMAJ33A, which protect circuits from voltage spikes. Founded in 1927 and headquartered in Chicago, USA, Littelfuse serves industries such as automotive, industrial, and consumer electronics. The company is recognized for its innovation and reliability in electronic protection solutions.

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