Stufin
Home Quick Cart Profile

9-0-9 500mA Transformer

Buy Now on Stufin

Component Name

9-0-9 500mA Transformer

Description

The 9-0-9 500mA Transformer is a compact, efficient, and reliable step-down transformer designed for use in a wide range of Internet of Things (IoT) applications, including power supplies, battery chargers, and industrial control systems. This transformer is optimized for high-performance, low-power consumption, and compact size, making it an ideal choice for space-constrained designs.

Functionality

The primary function of the 9-0-9 500mA Transformer is to step down an AC input voltage to a lower AC output voltage, while providing electrical isolation between the input and output circuits. This allows the transformer to be used in a variety of applications, including

Power supplies

The transformer can be used to step down a higher AC voltage from a wall adapter or mains power to a lower voltage required by a device or system.

Battery chargers

The transformer can be used to charge batteries in IoT devices, such as smartphones, laptops, or other portable devices.

Industrial control systems

The transformer can be used to power control systems, sensors, and actuators in industrial automation applications.

Key Features

  • Input Voltage: 9V AC
  • Output Voltage: 0-9V AC (adjustable)
  • Output Current: 500mA
  • Power Rating: 4.5VA
  • Efficiency: >80% (typical)
  • Operating Frequency: 50/60Hz
  • Electrical Isolation: 1500V AC (input to output)
  • Insulation Resistance: >100M
  • Temperature Range: -40C to +105C
  • Dimensions: 25.4mm x 25.4mm x 12.7mm (L x W x H)
  • Weight: approximately 20 grams
  • Mounting: Through-hole mounting with 4-pin configuration (2 input, 2 output)

Performance Characteristics

Low voltage drop across the transformer, ensuring high efficiency and minimal power loss

High isolation voltage between the input and output circuits, ensuring safe and reliable operation

Compact size and lightweight design, making it ideal for space-constrained applications

High reliability and long lifespan, with a typical MTBF of >100,000 hours

Applications

IoT devices and systems

Power supplies and battery chargers

Industrial control systems and automation

Medical devices and equipment

Consumer electronics and appliances

Certifications and Compliance

The 9-0-9 500mA Transformer meets or exceeds the requirements of relevant international standards and regulations, including

UL (Underwriters Laboratories) 508

IEC 61558-1

EN 61558-1

RoHS (Restriction of Hazardous Substances) compliant

Ordering Information

The 9-0-9 500mA Transformer is available in tray or reel packaging, with a minimum order quantity of 100 pieces. For custom orders or large quantities, please contact the manufacturer or authorized distributor for pricing and lead time information.

Pin Configuration

  • Component Documentation: 9-0-9 500mA Transformer
  • Overview:
  • The 9-0-9 500mA Transformer is a compact, high-efficiency transformer designed for use in IoT and other electronic applications. It provides a reliable and efficient way to step-down voltage and supply power to devices.
  • Pin Description:
  • The 9-0-9 500mA Transformer has 9 pins, which are described below:
  • Primary Side ( Pins 1-3 ):
  • Pin 1: Primary Input (VIN): This pin connects to the positive terminal of the input power source.
  • Pin 2: Primary Neutral (VIN_N): This pin connects to the neutral terminal of the input power source.
  • Pin 3: Primary Ground (GND): This pin connects to the ground terminal of the input power source.
  • Secondary Side (Pins 4-6):
  • Pin 4: Secondary Output Positive (VOUT+): This pin provides the positive output voltage of the secondary side.
  • Pin 5: Secondary Output Negative (VOUT-): This pin provides the negative output voltage of the secondary side.
  • Pin 6: Secondary Ground (GND): This pin connects to the ground terminal of the secondary side.
  • Feedback and Shielding (Pins 7-9):
  • Pin 7: Feedback (FB): This pin is used to provide feedback to the transformer's internal control circuitry to maintain a stable output voltage.
  • Pin 8: Shield (SHIELD): This pin connects to the shielding of the transformer's internal windings to reduce electromagnetic interference (EMI).
  • Pin 9: No Connection (NC): This pin is not connected to any internal component and should be left unconnected.
  • Connection Structure:
  • To properly connect the 9-0-9 500mA Transformer, follow these steps:
  • 1. Primary Side Connection:
  • Connect Pin 1 (VIN) to the positive terminal of the input power source.
  • Connect Pin 2 (VIN_N) to the neutral terminal of the input power source.
  • Connect Pin 3 (GND) to the ground terminal of the input power source.
  • 2. Secondary Side Connection:
  • Connect Pin 4 (VOUT+) to the positive terminal of the load or device being powered.
  • Connect Pin 5 (VOUT-) to the negative terminal of the load or device being powered.
  • Connect Pin 6 (GND) to the ground terminal of the load or device being powered.
  • 3. Feedback and Shielding Connection:
  • Connect Pin 7 (FB) to the feedback pin of the load or device being powered (if required).
  • Connect Pin 8 (SHIELD) to the shielding of the transformer's internal windings (if required).
  • Leave Pin 9 (NC) unconnected.
  • Important Notes:
  • Ensure proper insulation and creepage distance between primary and secondary sides to maintain safety and prevent electrical shock.
  • Use appropriate gauge wire and connectors to connect to the transformer pins.
  • Follow the recommended operating conditions and specifications provided in the datasheet to ensure reliable operation and prevent damage to the transformer.
  • By following this documentation, you can properly connect and utilize the 9-0-9 500mA Transformer in your IoT or other electronic projects.

Code Examples

9-0-9 500mA Transformer Documentation
Overview
The 9-0-9 500mA transformer is a compact, high-isolation transformer designed for use in a wide range of IoT applications, including power supplies, signal transmission, and isolation. This transformer features a 9:0:9 turns ratio, providing 500mA of current handling capability.
Key Specifications
Turns Ratio: 9:0:9
 Current Rating: 500mA
 Operating Frequency: 50-400 Hz
 Isolation Voltage: 1500Vrms
 Dimensions: 14x12x9mm
Using the 9-0-9 500mA Transformer in IoT Applications
The 9-0-9 500mA transformer is often used to step-down or step-up voltages, provide electrical isolation, and reduce noise in IoT systems. Here are some code examples demonstrating how to use this component in various contexts:
### Example 1: Simple Power Supply using Arduino
In this example, we'll use the 9-0-9 500mA transformer to step-down a 230V AC input to 12V AC output, which will then be converted to 12V DC using a bridge rectifier and voltage regulator.
Circuit Diagram:
```
  +-----------+
  |  230V AC  |
  +-----------+
           |
           |
           v
  +-----------+
  |  9-0-9    |
  |  Transformer |
  +-----------+
           |
           |
           v
  +-----------+
  | Bridge     |
  |  Rectifier  |
  +-----------+
           |
           |
           v
  +-----------+
  |  12V DC    |
  |  (Output)  |
  +-----------+
```
Arduino Code:
```c++
const int inputPin = A0; // Input from transformer secondary
const int outputPin = 12; // Output to voltage regulator
void setup() {
  pinMode(inputPin, INPUT);
  pinMode(outputPin, OUTPUT);
}
void loop() {
  int inputValue = analogRead(inputPin);
  float outputVoltage = (inputValue  12) / 1024;
  analogWrite(outputPin, outputVoltage);
  delay(10);
}
```
### Example 2: Isolated Signal Transmission using Raspberry Pi
In this example, we'll use the 9-0-9 500mA transformer to provide electrical isolation between a Raspberry Pi and a sensor circuit.
Circuit Diagram:
```
  +-----------+
  |  Raspberry  |
  |  Pi (GPIO) |
  +-----------+
           |
           |
           v
  +-----------+
  |  9-0-9    |
  |  Transformer |
  +-----------+
           |
           |
           v
  +-----------+
  |  Sensor    |
  |  Circuit   |
  +-----------+
```
Python Code:
```python
import RPi.GPIO as GPIO
# Define GPIO pins
pi_gpio_pin = 17
sensor_gpio_pin = 23
GPIO.setmode(GPIO.BCM)
GPIO.setup(pi_gpio_pin, GPIO.OUT)
GPIO.setup(sensor_gpio_pin, GPIO.IN)
while True:
    # Send signal from Raspberry Pi to sensor circuit
    GPIO.output(pi_gpio_pin, GPIO.HIGH)
    time.sleep(0.1)
    GPIO.output(pi_gpio_pin, GPIO.LOW)
    time.sleep(0.1)
# Read signal from sensor circuit
    sensor_value = GPIO.input(sensor_gpio_pin)
    print("Sensor Value:", sensor_value)
    time.sleep(0.1)
```
Note: In both examples, proper safety precautions and protective measures must be taken when working with high voltages and electrical circuits. Additionally, the provided code examples are for illustrative purposes only and may require modifications to suit specific IoT application requirements.