Description
Reviews
| 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 |
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.
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.
Commercial Glass Food Warmer Display Case for Egg Tarts, Hamburgers, Fried Chicken, and Youtiao - Countertop Heating Cabinet for Catering
$1,795.00
Premium Used Tires Removed from Vehicles Sizes 155 165 175 185 195 205 215 225
$54.00
Storage Bag Compatible with Dyson/Laifen Hair Dryer Curling Iron Straightener Double-Layer Portable Travel Hand-Carry Case
$48.40
Chushinmi - Silicone Collapsible Dish Drying Rack, Kitchen Organizer, Sink Utensil Holder for Bowls and Chopsticks
$61.90
Wenxin Tang Ultra-Clear Zhi Yong Thousand Character Classic Regular Script Calligraphy Cards - Boxed Practice Sheets for Medium-Sized Brush Writing
$40.80
Cute Pig Pot Lid Holder and Drainage Mat, Multi-Function Heat Insulator and Cutting Board Rest
$2.01
![[Damai Micro-Needle Hair Transplant Patent] Top Scalp Thinning Treatment | High-Density 200 Grafts Micro-Needle Transplant](https://www.gosteppe.com/cache/small/product/269847/legacy-main-921c5365abd34b2597668ec5.webp)
[Damai Micro-Needle Hair Transplant Patent] Top Scalp Thinning Treatment | High-Density 200 Grafts Micro-Needle Transplant
$199.00
Song Dynasty Guo Xi's 'Traveling in Snowy Mountains' Hanging Scroll - Study Copy Template, Art Core, Landscape Painting, Zen Decorative Art, HD Collectible
$12.80
Swan-Style Drain Basket for Wet/Dry Separation in Kitchen Sinks; Hanging Vegetable Washer and Strainer Rack
$111,978.00
Custom Mesh Lid Organizer Bag for Pelican 1535 Case - Laptop Compartment
$118.70
Home LED High-Power Rechargeable Flashlight, Multi-Purpose Long-Range Portable Ultra-Bright Mini Torch
$20.60
Accsoon CineEye M7 Pro 4K Wireless Video Transmitter and Monitor with 7-inch HDMI/SDI Dual-Transmission Screen
$99.00
Stainless Steel Sink Rack Kitchen Organizer Over-Sink Dish Drying Rack with Utensil Holder
$48.00
Specialized Vegetable Growing Box - Foam Balcony Planter, Rectangular Plastic Pot for Home Gardening
$41.70
Thickened Resin Vegetable Planter Box - Rectangular Plastic Balcony Pot for Growing Vegetables and Flowers
$101.00
SEATOSUMMIT Outdoor Travel Portable Waterproof First Aid Kit Wilderness Survival Personal Medical Folding Storage Bag
$79.00
Commercial Gas Storage Water Heater, Condensing Low-NOx Boiler, Fully Automatic Natural Gas Hot Water Furnace for Hotels
$13,175.00
SH1.0/1.25/ZH1.5/PH2.0XH2.54 Electronic Wire Connector Terminal Cable 2P-12P
$0.04
ABB VFD Capacitor ALS30A1363KJ/ALS30C1024NP/ALS30C1023NP - Brand New Genuine Parts
$500.00
200X18DNNmm L Shape Stainless Stel Corern Brace Repeair Ang
$88.28
Quilling Paper Set Gradient Color Tool Kit Handmade Quilling Strips Basic Packaging for Fine Line Coloring
$38.00
Standard Ou Kai Calligraphy Beginner's Sun Tzu's Art of War & Thirty-Six Stratagems Small Regular Script Brush Copybook Xuan Paper Long Scroll for Tracing
$18.00
Mold Release Oil for Incense Beads and Tags - Colorless, Odorless, Food-Grade Auxiliary Release Agent
$8.00
Tafara Aromatherapy Matches - Premium Extended-Length Safety Matches for Incense Burners (20 Count)
$23.80
Magnetic Sponge Holder and Steel Wool Rack for Sink, Stainless Steel No-Drill Kitchen Organizer
$9.94
Touchmark Square Sketchbook for Acrylic Markers - Thick Paper Art Journal for Quick-Dry, Smudge-Free Drawing
$10.80
Mo Hao Detail Brush Set, Goat Hair Liner, Wolf Hair Round/Flat Brushes for Oil Painting, Art & Gouache
$78.00
Authentic Military-style Socks for Men - Summer and Winter Anti-odor Sweat-absorbing Mid-calf Black and Navy Blue Training and Sports Socks
$23.80
Alliance Authorized Plaque - Yoga Alliance RYT, Pilates Alliance, International Yoga Alliance, China Yoga Alliance
$380.00
Xiupu Fraycolor Marker Airbrush Kit for Figure Model Painting Portable Rechargeable Airbrush and Pump Set
$127.00
![[Repair] HP HP-MCAT4 F30334S-I / MCAT Board Card](https://www.gosteppe.com/cache/medium/product/211618/legacy-main-d8e11b40a16a4f9e3e0c40a9.webp)
![[Repair] 2939425 Germany Phoenix Contact CM50-PS-120-230AC](https://www.gosteppe.com/cache/medium/product/211974/legacy-main-eeec9c38812def36ce06d011.webp)
![[Direct Mail from Japan] hakubaBA Maintenance Kit: Professional Lens Cleaning Set (3 Pieces) Black KMC-LP23BKTP](https://www.gosteppe.com/cache/medium/product/208933/legacy-main-e11535939efcc8121b432117.webp)
![2318582-8 Connector [WIREMATE 2-PIECE 8MM CONN ASSY,]](https://www.gosteppe.com/cache/medium/product/211045/legacy-main-5ddcca686c4d6d61d2c277f1.webp)
