Product overview
Shenzhen Haike Technology’s HAKRC BLS 25A 4IN1 ESC is a four-in-one electronic speed controller for motor control. Its board measures 32 * 30mm, with a 20mm-20mm mounting-hole arrangement and a net weight of 5.3g. These dimensions define its physical integration footprint. The hardware combines an EMF8BB21F16G main control chip operating at up to 48MHz with a dual pad design, imported MOSFET, three-in-one IC driver and high-frequency ceramic capacitor. Its four-layer PCB uses 2-ounce copper and metallized solder-pad edges intended to resist pad detachment.
Electrical integration is bounded by the specified 2S-5S Lipo input, 25A continuous current and 30A peak current. The ESC firmware designation is G_ H_ 20- Rev. 16.7- Multi. Supported control protocols comprise PWM, Oneshot125, Oneshot42, Multispot, Dshot150, Dshot300 and Dshot600, providing several stated signal options for the controller interface. The product is an ESC component rather than a flight platform or airframe kit. Packaging measures 64 * 64 * 35mm, with a specified packaging weight of 18g.
Specifications
| Specification | Value & conditions |
|---|---|
| Size and mounting | 32 * 30mm (20mm-20mm mounting hole) |
| Packaging size | 64 * 64 * 35mm |
| Net product weight | 5.3g |
| Packaging weight | 18g |
| ESC firmware | G_ H_ 20- Rev. 16.7- Multi |
| Supported protocols | PWM, Oneshot125, Oneshot42, Multispot, Dshot150, Dshot300, Dshot600 |
| Input voltage | 2S-5S Lipo |
| Continuous current | 25A |
| Peak current | 30A |
| Product configuration | BLS 25A four-in-one electronic speed controller |
| Main control chip | EMF8BB21F16G |
| Pad design | Dual pad design |
| Operating frequency | Up to 48MHz |
| Power and driver components | Imported MOSFET, three-in-one IC driver, and imported high-frequency ceramic capacitor |
| Solder pad construction | Metallized edge wrapping on solder pads to resist pad detachment during use |
| PCB construction | Four-layer PCB with 2-ounce copper |
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