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K-CUT

K-CUT B1205S-1W DC-DC 12 to 5V Isolated Step-down Power Module

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Buck Converter for everyday users

The K-CUT B1205S-1W DC-DC 12 to 5V Isolated Step-down Power Module by K-CUT is a value-for-money buck converter designed for everyday users. It features Isolation: 1KVDC and Operating Temperature (°C): -40℃ ~ +85℃.

₹641
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Total: ₹641
Buying tip: A smart budget buy — solid performance without breaking the bank.
Estimated delivery: 17 Aug31 Aug
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Quick Specs

Isolation: 1KVDC
Operating Temperature (°C): -40℃ ~ +85℃
Certification Standards: RoHS 
Shipping Weight: 0.01 kg
Shipping Dimensions: 8 × 5 × 2 cm

Ideal For

Everyday convenience
RoHS
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SKU: robu-2275925Category: Buck Converter

About This Product

The K-CUT B1205S-1W DC-DC 12 to 5V Isolated Step-down Power Module by K-CUT is a value-for-money buck converter designed for everyday users. It delivers reliable performance at an accessible price.

Key Specifications

  • Isolation: 1KVDC
  • Operating Temperature (°C): -40℃ ~ +85℃
  • Certification Standards: RoHS 
  • Shipping Weight: 0.01 kg
  • Shipping Dimensions: 8 × 5 × 2 cm

Why Buy from Pricio?

Pricio sources this product directly, cutting out multiple middlemen. Every order includes free shipping, a 15-day return policy, and secure payment via Razorpay.

Requirement on output load To ensure this module can operate efficiently and reliably, During operation, the minimum output load is not less than 10% of the full load, and that this product should never be operated under no load! If the actual output power is very small, please connect a resistor with proper resistance at the output end in parallel to increase the load, or use our company’s products with a lower rated output power (B_S-W2 & B_D-W2 Series). Recommended circuit If you want to further decrease the input/output ripple, an “LC” filtering network may be connected to the input and output ends of the DC/DC converter, see  It should also be noted that the inductance and the frequency of the “LC” filtering network should be staggered with the DC/DC frequency to avoid mutual interference. However, the capacitance of the output filter capacitor must be proper. If the capacitance is too big, a startup problem might arise. For every channel of output, provided the safe and reliable operation is  ensured, the greatest capacitance of its filter capacitor sees (Table 1). Output Voltage Regulation and Over-voltage Protection Circuit The simplest device for output voltage regulation, over-voltage and over-current protection is a linear voltage regulator with overheat protection that is connected to the input or output end in series Overload Protection Under normal operating conditions, the output circuit of these products has no protection against overload. The simplest method is to connect a self-recovery fuse in series at the input end or add a circuit breaker to the circuit.


FEATURES:
  1.  Efficiency up to 70%
  2.  Miniature DIP Package
  3.  1KVDC Isolation
  4.  Temperature Range: -40°C ~ +85°C
  5.  Internal SMD Construction
  6.  Industry Standard Pinout
  7.  No Heat sink Required No External Component Required
  8.  PCB Mounting
  9.  RoHS Compliance

Package Include:

1 x K-CUT B1205S-1W DC-DC 12 to 5V Isolated Step-down Power Module

Setup Guide

1
Identify the pins
Locate VCC (power), GND (ground), and data pins (SDA/SCL for I2C, MOSI/MISO for SPI, or TX/RX for UART). Refer to the pinout diagram on the product page.
2
Wire to your microcontroller
Connect VCC to 3.3V or 5V (check the module spec), GND to GND, and data pins to the appropriate GPIO pins on your Arduino or Raspberry Pi.
3
Install libraries
In Arduino IDE, go to Sketch → Include Library → Manage Libraries and search for the sensor library. Install the recommended version.
4
Upload example sketch
Open File → Examples → [library name] → Basic Example. Upload to your board and open Serial Monitor to view output.
5
Calibrate if needed
Some sensors (temperature, humidity, distance) may need a short warm-up period or calibration. Run the calibration sketch if provided.