مقاومة شبكية (نيتورك) 4.7 كيلو أوم 9 طرف
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مقاومة شبكية (نيتورك) 4.7 كيلو أوم 9 طرف
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Network Resistor 4.7kΩ 9-Pin
The 4.7kΩ 9-Pin Network Resistor is a high-density passive component that integrates eight individual 4.7kΩ resistors into a single 9-pin Single In-Line Package (SIP-9). It features a "Type A" (Single Common) bussed configuration, where one terminal of every resistor is tied to a shared common pin (Pin 1), and the other ends are connected to independent pins (Pins 2–9). This specific resistance value is the industry standard for I2C pull-ups and general-purpose digital logic stabilization.
Key Features
Space-Saving Integration: Replaces eight discrete 0805 or 0603 resistors with a single component, reducing PCB real estate by approximately 75%.
Signal Stability: Minimizes trace length and inductance, which reduces signal reflections and ringing in high-speed digital circuits.
Reliable Construction: Built using high-reliability RU02 paste and a flame-retardant epoxy resin body for protection against heat and moisture.
Thermal Tracking: Grouping resistors in one package ensures they experience identical temperature changes, maintaining consistent resistance across all 8 channels.
Technical Specifications
| Parameter | Value |
| Resistance (per resistor) | 4.7 kΩ |
| Tolerance | ±2% to ±5% |
| Number of Resistors | 8 |
| Circuit Type | Bussed / Single Common (Type A) |
| Pin Count | 9 |
| Power Rating | 0.125W per resistor (1/8W) |
| Max Working Voltage | 100V |
| Temperature Range | -55°C to +155°C |
Implementation Guide
Common Pin (Pin 1): Identified by a marker (dot) on the package; typically connected to VCC for pull-up or GND for pull-down configurations.
Power Dissipation: At a standard 3.3V supply, a 4.7kΩ pull-up dissipates only 2.3mW, making it ideal for battery-powered or low-power designs.
Decoupling: It is recommended to place a 0.1µF capacitor near Pin 1 to suppress high-frequency noise on the common power rail.
Specific Applications
I2C Bus Pull-ups: Optimal for standard-mode (100kHz) I2C lines with multiple connected devices.
MCU Input Protection: Provides stable default states for high-impedance microcontroller input pins.
Sensor Interfacing: Reliable biasing for digital status lines in industrial sensor arrays.
Logic Level Shifting: Acts as a reference pull-up when interfacing between different logic voltage domains.
Datasheet
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