Attributes

Brand	-
Category	3C Digital Accessories / MP3/MP4 Stands
Origin	-
Part Number	3SMAJ5942B-TP
Manufacturer	Micro Commercial Components (MCC)
Component Type	Zener Diode
Nominal Voltage	51V
Power Dissipation	3W
Package Case	DO-214AC (SMA)
Mounting Type	Surface Mount (SMD)
Tolerance	±5%
Operating Temperature	-55°C to +150°C
RoHS Status	Compliant

6 reviews

Anonymous

Mar 27, 2026

Rating: 5/5

Reliable for industrial use

We use these in our maintenance shop frequently. Consistent quality and the 3W rating handles our load requirements perfectly.

Anonymous

Mar 21, 2026

Rating: 5/5

Great for projects

Bought these for a university electronics project. They handled the heat dissipation well and maintained stable voltage.

Anonymous

Mar 12, 2026

Rating: 4/5

Good value

Works as expected. The only reason for 4 stars is that the delivery took a day longer than estimated, but the product itself is flawless.

Anonymous

Mar 10, 2026

Rating: 5/5

Saved my vintage amp

Needed a specific 51V zener for an old amplifier restoration. This SMA package fit perfectly and works great.

Anonymous

Mar 07, 2026

Rating: 5/5

High quality component

Genuine MCC parts. I tested a batch of ten and they all performed within spec. Great for professional repairs.

Anonymous

Mar 04, 2026

Rating: 5/5

Perfect replacement part

Exactly what I needed for my power supply repair. The voltage regulation is spot on at 51V. Fast shipping and well packaged.

5 FAQ

Q: Is this diode suitable for high temperature environments?

A: Yes, the 3SMAJ5942B-TP has an operating temperature range of -55°C to +150°C, making it suitable for demanding environments.

Q: Can I use this as a direct replacement for a 1N5372B?

A: While both are 51V Zener diodes, the 1N5372B is typically in a DO-15 package. Ensure your board layout supports the smaller SMA (DO-214AC) footprint before substituting.

Q: Does this part come with a certificate of conformity?

A: Yes, all our semiconductor products ship with a standard certificate of conformity confirming RoHS compliance and authenticity.

Q: Are these components sold individually or in reels?

A: This listing is for individual units cut from the reel. If you require full reel quantities, please contact our sales team directly.

Q: What is the exact footprint for PCB design?

A: The component uses the standard DO-214AC (SMA) footprint. Please refer to the manufacturer's datasheet for detailed land pattern recommendations.

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