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Fixed Resistors Selection Guide

Fixed Resistors Selection Guide

Product catalog summary

Overview: This document provides a comprehensive summary of Bourns® fixed resistors, detailing various types, specifications, and applications. The resistors are categorized based on their function, power rating, and industry standards.

1. SMT Resistor Arrays: These are general industry standard resistors available in concave or convex packages with 2 to 16 pins. They have a power rating of 0.5W, resistance range from 10 Ohms to 1 MOhm, and a temperature coefficient of 200 PPM. Models include CAT10, CAT16, CAY10, and CAY16.

2. SMT Thick Film Chip Resistors: These resistors are also industry standard with a power rating of 1W, available in sizes from 0201 to 2512. They offer resistance from 1 Ohm to 10 MOhm and a temperature coefficient of 200 PPM. The CR Series is included in this category.

3. Resistor Networks: Available in through-hole SIL and SMT packages, these resistors have a power rating of 2.8W, resistance range from 10 Ohms to 10 MOhm, and a temperature coefficient between 25 and 200 PPM. Models include the 4100, 4300, 4400, 4600, and 4800 Series.

4. SMT Thick Film Low Ohmic Current Sense Resistors: These resistors are designed for current sensing with a power rating of 1W, available in sizes from 0603 to 2512, and offer resistance from 0.02 to 9.1 Ohms. The CRL Series is part of this category.

5. SMT Metal Strip Chip Resistors: These are high power, low TCR resistors for current sensing, with a power rating of 3W, available in sizes from 2010 to 2512, and resistance from 0.001 to 0.1 Ohms. Models include CRA and CRF Series.

6. SMT Thick Film Power Resistors: Designed for current and voltage sensing, these resistors have a power rating of 2W, available in sizes from 0805 to 2512, and resistance from 0.047 to 1 MOhm. The CRM Series is included here.

7. SMT Thin Film Chip Resistors: These precision resistors have a low TCR, with a power rating of 0.25W, available in sizes from 0402 to 1206, and resistance from 1 Ohm to 1 MOhm. The CRT Series is part of this category.

8. SMT Wirewound Resistors: These resistors are designed for surge protection with high pulse power, available in sizes from 4.8 x 3.3 mm to 15.9 x 6.9 mm, and resistance from 0.01 to 25 KOhm. Models include PWR1913, PWR2010, PWR2615, and PWR3014-6327.

9. Axial Leaded Wirewound Safety Resistors: These resistors are designed for safety in AC power applications, with a power rating of 3W, size of 11.5 x 5.5 mm, and resistance from 8.4 to 2.4 KOhm. The PWR4522 model is included.

10. Thick Film High Power Resistors: These resistors are used for current sensing and capacitor discharge, with a high pulse power rating of 35W, available in TO220, D2PAK, and DPAK packages, and resistance from 0.02 to 130 KOhm. Models include PWR163, PWR263, PWR220T, and PWR221T.

11. Open Air Shunt Resistors: Designed for high current and temperature applications, these resistors have power ratings of 1, 3, and 5W, available in through-hole packages, and resistance from 0.005 to 0.1 Ohms. Models include PWR4412 and PWR4413.

12. High Power Shunt Resistors: These resistors offer low ohmic and high stability, with a power rating of 15W, available in TO220 and D2PAK packages, and resistance from 0.002 to 50.0 Ohms. Models include PWR220-2S, PWR220-4S, PWR221-2S, and PWR221-4S.

13. High Power Terminations: These components are used in terminators, combiners, isolators, and dividers, with excellent VSWR and high power capabilities, supporting up to 1K power rating. The CHF Series is included.

Applications and Packaging: The resistors are used across various sectors including consumer electronics, industrial, telecom, medical, and power supplies. They are available in different packaging options such as reels, tubes, bags, and trays, with RoHS compliance.

Catalog excerpts

Bourns® Fixed Resistors Product Summary Type Power Rating of Largest Package (W) Industry Packages or Length x Width (mm) Absolute Tolerance Per Resistor Resistance Range (Ohms) Temperature Coefficient Values* (PPM) Industry Standard SMT Thick Film Chip Resistors Industry Standard Resistor Networks Industry Standard SMT Thick Film Low Ohmic Current Sense Industry Standard SMT Metal Strip Chip Resistors Current Sense SMT Thick Film Power Resistors Current Sense & Voltage Sense High Power, High Pulse Voltage Rating SMT Thin Film Chip Resistors Precision Voltage Sense Surge Protection High Pulse Power Axial Leaded Wirewound Safety Resistors Opens Safely in 240/220 Mains Thick Film High Power Resistors Current Sense, Cap Discharge High Pulse Power Open Air Shunt Resistors Current Sense High Current, High Temperature High Power Shunt Resistors Current Sense Low Ohmic, High Stability High Power Terminations Terminators, Combiners, Isolators, Dividers Excellent VSWR, High Power Industry Standard *Per Resistor, Resistance Value Dependent SMT Thick Film Chip Resistors Resistor Networks Axial Leaded Wirewound Safety Resistors Thick Film High Power Resistors Open Air Shunt Resistors Thick Film High Power Resistors High Power Terminations

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Maximum Peak Soldering Design Kit Voltage (V) Temperature (°C) Part Number Consumer, White Goods, Industrial, Telecom, Medical† Consumer, White Goods, Industrial, Telecom, Medical† CR0201: Reel of 20K pcs., CR0402: Reel of 10K pcs. CR0805-CR1206: Reels of 5K pcs. CR2010-CR2512: Reels of 4K pcs. Industrial, Telecom, Medical† 4100: Tubes of Between 20 and 45 pcs. 4300: Tubes of Between 35 pcs. and 250 pcs. 4400: Tubes of 40-50 pcs. or Reels of 1.5K pcs. 4600: Bags of 100 pcs. or Ammopak of 1K pcs. Consumer, White Goods, Industrial, Telecom, Medical†, Power Supplies Consumer, White Goods, Industrial,...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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