Standard Stack: F405 FC + 85A ESC 4 in 1 30x30

Name: Standard Stack: F405 FC + 85A ESC 4 in 1 30x30
SKU: 39275
Price: 76.90 USD
Availability: InStock

High-performance flight control and power system designed for 5-7" FPV drones

Designed by ChatRobotic FPV Drones in China

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High-performance flight control and power system designed for 5-7" FPV drones

Standard Stack: F405 FC + 85A ESC 4-in-1 30x30 Technical Brief System Overview High-performance flight control and power system designed for 5-7" FPV drones, featuring robust STM32F405 processing and…

Standard Stack: F405 FC + 85A ESC 4-in-1 30x30 Technical Brief

System Overview

High-performance flight control and power system designed for 5-7" FPV drones, featuring robust STM32F405 processing and high-current ESC capabilities in a 30×30mm stackable form factor.

1. Flight Controller Specifications

Parameter	Specification
MCU	STM32F405RGT6 (168MHz Cortex-M4)
IMU	BMI270 (SPI, 6.4kHz gyro)
Blackbox	32MB Flash (4kHz logging)
Input Voltage	2-8S LiPo (7.4-25.2V)
BEC Outputs	5V@3A + 10V@3A
Connectivity	4x UART, 2x I²C, 1x CANbus
USB Interface	Micro-USB
OSD Chip	AT7456E (Betaflight OSD)
Board Size	36×36mm
Board Weight	10.2g

2. 75A 4-in-1 ESC Specifications

Parameter	Specification
MCU	GD32F330 (72MHz Cortex-M4)
Continuous Current	85A/channel (300A total)
Burst Current	95A/channel (5 sec)
Protocols	DShot1200, Proshot32, PWM, Oneshot125
Input Voltage	2-8S LiPo (7.4-33.6V)
Current Sensor	±1.5% accuracy hall sensors
Board Size	40×40mm
Board Weight	28.6g

3. Combined Features

Power System

Integrated PDB: Direct battery connection with 100μF ceramic capacitors
Surge Protection: 35V transient voltage suppression (TVS array)
Active EMI Filtering: Triple-stage noise reduction for video systems
Stackable Design: 30×30mm mounting pattern with M3 screws

Integration

HD FPV System Support: Dedicated 9V/12V regulated outputs for cameras
ESC Telemetry: Real-time RPM/current monitoring via FPort
Barometer Sensor: Built-in altitude hold functionality

4. Safety Features

Flight Controller Protections

Protection Type	Specification	Implementation
Voltage Spike Protection	30V continuous / 40V transient	TVS diodes + active clamping circuit
Gyro Vibration Damping	>5kHz reduction by 90%	Aluminum gasket + dynamic notch filter
Dual Power Inputs	5V@3A (primary) + 5V@2A (backup)	Redundant MOSFET switching

ESC Protections

Protection Type	Threshold	Response Time	Trigger Condition
Hardware Overcurrent	95A per channel	≤2 seconds	MOSFET desaturation
Software Overcurrent	85A continuous	≤10 seconds	Sustained high current
Short Circuit	Instant cutoff	<50μs	Phase-to-phase fault
Over-temperature	110°C (MOSFET)	<500μs	Thermal runaway
Low Voltage Cutoff	3.2V/cell configurable	<100ms	Battery protection

5. Accessories Package

1x SH1.0-8pins silicone cable (7cm, reversed)
1x SH1.0-6pins silicone cable (12cm, reversed)
1x SH1.0-4pins silicone cable (12cm, reversed)
1x SH1.0-3pins silicone cable (10cm, reversed)
1x SH1.0-2pins silicone cable (12cm, single-end)
5x M3*10mm shock-absorbing balls
5x M3*8mm shock-absorbing balls
1x 1000UF 35V 10*20mm electrolytic capacitor
1x XT60-male 12AWG silicone cable (15cm length)

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ChatRobotic FPV Drones Shipping Policy:

II. Shipping and Delivery

ChatRobotic will arrange shipping based on the order priority and inventory situation after receiving the full payment from the customer. The estimated shipping date will be informed to the customer in the order confirmation notice. However, due to force majeure or other unforeseeable and unavoidable reasons, the shipping time may be delayed, and the company will promptly notify the customer and provide a reasonable explanation.
The company will select appropriate logistics partners for product delivery, and the delivery scope covers most regions around the world. The delivery cost will be calculated based on factors such as the customer's shipping address, the weight, and volume of the order, and will be clearly shown in the order confirmation notice. Customers can choose different delivery service levels when placing an order, such as standard delivery or expedited delivery. The corresponding delivery costs and delivery times will vary accordingly.
After the product is shipped, ChatRobotic will provide logistics tracking information to the customer so that the customer can check the transportation status of the product at any time. When receiving the product, the customer should carefully check whether the packaging of the product is intact. In case of any damage or abnormality, the customer should promptly contact the logistics company and notify ChatRobotic.