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The BMS-A12H is a high-performance, top-class HV servo and is very popular in the DLG and HLG gliding sector. Due to its small size, the A12H also finds enough space in narrow hulls.
Highlights
Technical data
| Dimensions (H x W x D) | : | 22x8x19.3mm | |
| Weight | : | 8.2 | G |
| Actuating speed | : | 0.09 | s/60° at 8.4V |
| force | : | 4.6 | kgcm at 8.4V |
| Voltage range | : | 3.6 - 8.4V | |
| transmission | : | metal | |
| Servo electronics | : | Digital | |
| camp | : | 2x ball bearings | |
| Torque At 3.7V | 2.3 kg-cm / 31.9 oz-in |
| Torque At 6.0V | 3.7 kg-cm / 51.4 oz-in |
| Torque At 7.4V | 4.2 kg-cm / 58.3 oz-in |
| Torque At 8.4V | 4.6 kg-cm / 63.9 oz-in |
| Speed At 3.7V | 0.19 sec / 60° |
| Speed At 6.0V | 0.12 sec / 60° |
| Speed At 7.4V | 0.10 sec / 60° |
| Speed At 8.4V | 0.09 sec / 60° |
| Operating Voltage Range | 3.6V ~ 8.4V DC ( 1-2S HV Li-Poly / 2S Li-Fe Compatible ) |
| Application / Suitable | 3D EP Aircraft, DLG / HLG / F3K / F3P. |
| Control System | Digital Controller 12-Bits ( 4096 Steps ) Frequency：Up to 333Hz / Neutral：1500 or 1520us |
| Dead Band Width | 0.002ms ( 2us ) |
| Frame Rate (Signal repeat rate) | 3ms ( Maximum ) |
| Rotating Direction | Clockwise / Pulse Traveling 1500 ~ 1900u sec |
| Operating Travel | 90° ( When 1100 ~ 1900 μ sec ) |
| Ball Bearing | Dual |
| Gear | Stainless Steel Output gear with All Precision Metal Gears |
| Motor | High-Efficiency Coreless Motor |
| Horn / Gear Spline | 19 Teeth ( φ3.65 m/m ) |
| Connected Cable Length | 150 mm ( 5.9 in ) |
| Connected Housing | Universal Connector |
| Dimension (mm) | 22 x 8 x 19.3 mm / 0.86 x 0.31 x 0.76 in |
| Weight (gram) | 8.4 ± 0.2 grams / 0.29 oz |
| Product Picture / Dimension Sketch | 
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