Fans
Fans EFB0405HHD 4020 5V .45A 40x40x20mm stall alarm dual ball bearing case fan
40×40×20 mm 5 V dual ball-bearing case fan with stall alarm
- Stall alarm signals failure before overheating occurs
- Dual ball bearing design extends operational lifespan
- 5 V 0.45 A draws minimal system power
- Compact 40 × 40 × 20 mm fits tight chassis spaces
Compact 4020 5V case fan
The EFB0405HHD is a 40 mm square frame fan that runs on 5 V and draws 0.45 A. It uses dual ball bearings and includes a stall alarm signal for monitoring. The 20 mm thick design fits the standard 4020 mounting pattern.
Small-form-factor builders needing 5 V operation
This fan suits tight enclosures that require a 5 V supply and a tachometer-style alarm. Systems that demand PWM control, higher voltage input or larger frame dimensions will need a different cooling solution.
Highlights
- Stall alarm signals failure before overheating occurs
- Dual ball bearing design extends operational lifespan
- 5 V 0.45 A draws minimal system power
- Compact 40 × 40 × 20 mm fits tight chassis spaces
Specifications
No published specifications for this item yet.
Questions about this item
How long will the dual ball bearings last before replacement?
Dual ball bearings typically outlast sleeve bearings by several years under continuous operation, reducing the need for early replacement.
What limits sustained performance first — airflow or stall protection?
The stall alarm triggers when rotor speed drops below a safe threshold, protecting the motor before airflow loss becomes critical.
New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.
Black Box Corporation
Black Box Corporation CAT6 EZ-RJ45 Modular Plugs 100-Pack
$95.99
0.00115713BTC
In stock
