Multiplex 65159 Servo Tiger MHV digi 4 Toroue

Multiplex 65159 Servo Tiger MHV Digi 4 Torque

High-voltage (HV) servos can be operated directly from two-cell Lithium-based batteries (LiFe / LiIo / LiPo) with a nominal voltage of 6.7 - 7.4 V. In contrast, conventional servos are designed for a nominal voltage of 4.8 V, based on a battery technology (DEAC) which is more than fifty years old. This means that they must be protected from overloading by some form of voltage reducer* if Lithium batteries are used. This reduces the overall efficiency of the system, and leads to dissipated power, additional components and more connectors.
LiXX batteries have a higher voltage curve, greater energy density and lower self- discharge rates than NiXX batteries. For a given power, if the voltage is higher, the current is lower.
Advantages:
- Use of smaller, lighter batteries; alternatively longer operating times if batteries of the same capacity are used
- Reduced power losses through connectors and long cables (where required)
- Smaller cable cross-sections can be used (saving weight)
- Less cabling complexity (models with many servos no longer require stabilisation systems)
Modern receivers are designed for voltages up to 9 V, and if HV servos are used, there is nothing to prevent modellers using modern, superior Lithium technology directly.
* For 4.8 V servos in a mixed system with 2S LiPo batteries - Servo-Voltage Regulator # 8 5066
Reasonably priced metal-geared digital servos for use with LiPo receiver power supplies. The robust metal gearbox makes these servos suitable for applications where good resistance to mechanical shock is required. The Speed version is preferred where a fast servo is called for, e.g. inRC cars; the Torque version is the better choice where high output power is necessary, e.g. in jets and large-scale model aircraft.
- Can be used directly with 7.4 V LiPo batteries
- Higher efficiency, lower dissipated power
- Speed version - extremely fast
- Torque version - extremely powerful
- Twin- ballraced output shaft
- Programmable using the MULTImate - deadband, neutral position and end-points, direction of rotation and speed, FAIL-SAFE position and FAIL-SAFE ON / OFF

Specifications

Dimensions (L x W x H): 40 x 20 x 38 mm
Weight: approx. 60g
Gearbox: Metal
Ballraces: 2
Multi-finger pot with indirect drive: yes
Torque @ 6 V/7.4 V: * 83 / 94 (109/121) Ncm
Holding power @ 6 V/7.4 V: * ** 115/126 (149/160) Ncm
Transit speed for 40° @ 6 V/7.4 V: * 0.10/0.08 (0.13/0.10) sec