Hepf SE4 BUS - Servo Signal Converter
As of April 2026 · Prices incl. VAT unless stated otherwise.
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Delivery time Germany: 1-3 business days.
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Free shipping on orders over 129 EUR (within Germany, excluding product-dependent surcharges!)
Hepf SE4 BUS - Servo Signal Converter
Hepf SE4 BUS - Servo Signal Converter
The Servo Expander SE4 is a device that converts the serial bus signal into standard PWM servo outputs.
It offers up to four configurable servo outputs with optional output period and a fail-safe setting.
The Servo Expander SE4 is ideal for reducing the wiring harness in the model to enable additional functions alongside the flybarless system.
The SE4 is the perfect choice for models with complex wing or tail mechanics, as well as models with limited receiver outputs where multiple analog/digital servos can be connected to a primary receiver with just one cable.
If you need more receiver channels, simply connect the SE6 to the serial receiver line and freely assign the output channels.
Supported protocols:
- Futaba: S.Bus/S.Bus2
- Graupner: SUMD, Hott Telemetry with transmitter settings
- JETI: EX Bus with transmitter settings, via JETI Box emulator
- Multiplex: SRXL 12ch, SRXL 16ch
Features:
- for analog/digital servos
- no S-Bus servos required
- Small dimensions and high current throughput via the integrated MR30 power connector
- Automatic detection of serial data / telemetry after startup
- Configuration via transmitter or external terminal (JETIBOX/SMART-BOX)
- Firmware updates via USB interface
Technical data:
- Dimensions (with connector): 34x14x9mm
- Weight (with connector): 4g
- Servo slots: 3 or 4
- Operating current: 15mA
- Temperature range: -20 - 85°C
- Supply voltage: 4 – 14V (recommended 5-8.4V)
- Continuous current up to: 15A
- Peak current: 60A (2sec)
- Supported protocols: JETI Duplex, Multiplex, Graupner Hott, Futaba S.Bus
- Status LED yes
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