Resistor 15 kohm-0.25W

15K Ohm Resistor 0.25W – Overview

The 15K Ohm Resistor 0.25W is a carbon film fixed resistor with a resistance value of 15,000 ohms and a power rating of 0.25 watts (1/4 watt). The 15K Ohm Resistor 0.25W features a tolerance of plus or minus 5% with color-coded bands printed on the body for quick and easy identification, making it one of the most widely used components in electronic circuits worldwide. Its axial lead design allows direct insertion into breadboards and PCBs, and its compact size makes it easy to handle in any project. Suitable for both beginners and professionals in electronics.

الوصف بالعربي

مقاومة 15 كيلو أوم بقدرة ربع وات (0.25W) من نوع Carbon Film، وهي من أكثر المقاومات استخداماً في الدوائر الإلكترونية بسبب موثوقيتها وسعرها المناسب. تتميز بدقة تفاوت ±5% ويمكن التعرف على قيمتها بسهولة عبر نظام الألوان (Color Bands) المطبوع على جسمها. تصلح لمشاريع Arduino والدوائر التناظرية وتقسيم الجهد والدوائر المنطقية. يمكن استخدامها مباشرة على Breadboard أو تثبيتها على لوحات PCB بسهولة نظراً لتصميمها Axial Lead القياسي.

Features

• Resistance Value: 15,000 ohms (15K Ohm)
• Power Rating: 0.25W (1/4 Watt)
• Tolerance: plus or minus 5%
• Type: Carbon Film, Axial Lead through-hole
• Color Code: Standard 4-band color coding system
• Operating Temperature Range: -55 degrees C to +155 degrees C
• RoHS Compliant – lead-free and environmentally safe

Applications

• Voltage divider circuits and analog bias networks
• Current limiting resistor for LEDs, transistors, and ICs
• Pull-up and pull-down resistors in microcontroller digital circuits
• Arduino, ESP32, Raspberry Pi, and general MCU projects
• Signal conditioning, RC filter circuits, and timing networks
• Sensor interface circuits and measurement applications

Technical Background

Carbon film resistors are manufactured by depositing a thin carbon film on a ceramic substrate, then cutting a spiral groove to achieve the desired resistance value. This construction method results in lower noise levels compared to carbon composition resistors, and better stability over temperature changes. The 15K Ohm Resistor 0.25W in particular is widely stocked in electronics labs and workshops due to its versatility across a broad range of circuit applications, from simple LED current limiters to more complex analog filter and sensor interface designs.

Usage Notes

تأكد دائماً من قراءة قيمة المقاومة بشكل صحيح باستخدام كود الألوان أو جهاز الملتيميتر قبل التركيب في الدائرة. لا تتجاوز الحمل المحدد بـ 0.25 وات لتجنب تلف المقاومة أو الدائرة. Browse our full range of Fixed Resistors for all available values and types. For technical reference, see Resistor on Wikipedia.