Happymodel SE 0802

Stator	0802
KV options	19000
Weight	1.9 g
Shaft	1mm
Max cells	1S
Configuration	9N12P
Dimensions	Ø10.5x14.9 mm
Max thrust	33.9 g
Price (approx.)	11.99 USD

At 1.9 g it is right at the class average across the 8 0802-class motors in our database (avg 1.90 g).

Thrust data (Happymodel bench test)

KV	Prop	Battery	Throttle	Current	RPM	Thrust	Efficiency
19000	55mm 2-blade propeller	1S	—	1.05 A	—	11.9 g	2.982 g/W
19000	55mm 2-blade propeller	1S	—	2.08 A	—	20.5 g	2.594 g/W
19000	55mm 2-blade propeller	1S	—	3.05 A	—	27.1 g	2.338 g/W
19000	55mm 2-blade propeller	1S	—	4.11 A	—	32.3 g	2.068 g/W
19000	55mm 2-blade propeller	1S	—	4.25 A	—	33.9 g	2.156 g/W
19000	31mm 4-blade propeller	1S	—	1.18 A	—	11.4 g	2.3 g/W
19000	31mm 4-blade propeller	1S	—	1.97 A	—	16.7 g	2.018 g/W
19000	31mm 4-blade propeller	1S	—	3.15 A	—	23.9 g	1.807 g/W
19000	31mm 4-blade propeller	1S	—	3.42 A	—	24.6 g	1.713 g/W

Manufacturer bench figures (Happymodel bench, 19000 KV on a 55 mm 2-blade at 3.7-3.8 V and a 31 mm 4-blade at 4.2 V (1S); current steps 1.05-4.25 A, throttle not published); real-world thrust varies with ESC, battery sag and prop condition.

SE 0802 vs other 0802 motors on 1S

The same thrust costs different power on different motors. Each line is one maker's own bench series (1S, its own prop), drawn as grams of thrust per watt against thrust, so a higher line makes that thrust for less battery current. Throttle percent is left out on purpose: it means something different on every maker's rig.

Motor	KV	Prop	Peak thrust	At 20 g
Happymodel SE 0802	19000	55mm 2-blade propeller	34 g at 16 W	8 W (2.61 g/W)
Happymodel RS 0802	20000	Gemfan 1610 2-blade propeller	35 g at 14 W	7 W (2.82 g/W)
GEPRC SPEEDX2 0802	22000	GF1635 4B	44 g at 33 W	15 W (1.31 g/W)
BetaFPV 0802SE 0802	23000	GF40mm-2B 1610	35 g at 16 W	9 W (2.35 g/W)
Happymodel EX 0802 Whoop	25000	Gemfan 1219 propeller 31mm	28 g at 16 W	10 W (1.91 g/W)
T-Motor M0802 II	25000	M12199	39 g at 18 W	—

Power at 20 g is read off each maker's curve, straight-line between its two nearest bench points; 20 g is the highest thrust every motor here reached. Different props and rigs move these curves as much as the motor does, so compare rows on a similar prop. Peak thrust of every 0802 motor: 0802 motors compared. How to read a bench table: reading motor bench tables.

Thrust-to-weight with this motor

Four Happymodel SE 0802 motors at 33.9 g max thrust each give 135.6 g: 2:1, the minimum to fly, up to 67.8 g all-up; 4:1 (freestyle) up to 33.9 g; 8:1 (racing) up to 16.95 g.

RPM & prop speed on this motor

Flies on these BNF quads

Happymodel Moblite6 (tiny whoop (ultralight))

Props in this motor's class

Prop	Size	Blades	Weight
weBLEEDfpv HQ Ultralight Whoop 31MM	1.22x1.0	3	0.16 g
HQProp 40MMX2 Ultralight 40mm Micro/Whoop	1.6x1.2	2	0.2 g
Gemfan 35MMS 3-Blade	1.4x0.96	3	0.24 g
HQProp 40mm Ultralight 3-Blade	1.6x1.0	3	0.25 g
HQProp Ultralight 31MMX3 31mm Micro/Whoop	1.22x1.0	3	0.27 g

Where this data comes from

The rows are Happymodel's own bench table, an HTML table in the body of its 2018 SE0802 1-2S product post on happymodel.cn ("Happymodel 0802 Brushless motors benchmark"), so every figure is the source's own text. The table covers four windings (16000/19000/22000/25000 KV); only the winding this page sells is carried here. It steps CURRENT, not throttle, and prints no per-row RPM, so both columns are empty. Every row's printed power equals Voltage x Current and its printed efficiency equals Thrust / Power. Cell counts are not printed per row: 4.2 V, 3.8 V and 3.7 V runs are filed as 1S, the 7.0 V run as 2S. Prop names are the table's ("4-blades propeller" written singular). Happymodel's block for the line: 9N12P, 8x2 mm stator, 1.0 mm shaft, body Ø10.5x14.9 mm, 1-2S, 1.9 g. No-load blocks for 19000 KV: 0.24 A, 28620 RPM at 1.5 V (19080 KV) and 0.3 A, 26460 RPM at 1.5 V (18430 KV); wire length 30 mm. Happymodel rates the SE0802 line 1-2S; our listing says 1S and the page keeps it (every 19000 KV row is a 1S run) - not changed here.