81NF4R99 datasheet, PDF - EEWORLD Datasheet

Datasheet> All Categories > Passive components> The resistor> 81NF4R99

81NF4R99: DescriptionFixed Resistor, Wire Wound, 1W, 4.99ohm, 150V, 1% +/-Tol, -50,50ppm/Cel,; CategoryPassive components The resistor; File Size323KB，2 Pages; ManufacturerOhmite; Websitehttps://www.ohmite.com

Download Datasheet Parametric View All

81NF4R99 Overview

Fixed Resistor, Wire Wound, 1W, 4.99ohm, 150V, 1% +/-Tol, -50,50ppm/Cel,

81NF4R99 Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Objectid	847912084
Reach Compliance Code	compliant
Country Of Origin	Mexico
ECCN code	EAR99
YTEOL	7.2
structure	All-Welded
Lead diameter	0.51 mm
Lead length	38.1 mm
Number of terminals	2
Package diameter	3.2 mm
Package length	11.1 mm
Package form	Axial
Rated power dissipation(P)	1 W
resistance	4.99 Ω
Resistor type	FIXED RESISTOR
series	80
technology	WIRE WOUND
Temperature Coefficient	-50,50 ppm/°C
Tolerance	1%
Operating Voltage	150 V

Preview

Download Datasheet

View All

Commercial Grade Acrasil

‚ Silicone-Ceramic

Conformal Axial Terminal Wirewound

1% Tolerance (5% available)

80 series

rW series

F e at u r e s

Military Grade 80 Series MIL-R-26 Qualified

Ohmite’s highest quality conformal axial terminal

silicone-ceramic coated resistors for applications

requiring high precision and stability. These resistors

have a low temperature coefficient and maintain a

high degree of stability under demanding conditions.

• Designed for precision power applications

• All-welded construction

• RW Series “Mil” value resistors marked with

“Mil” in accordance with MIL-R-26 specifica-

tions

s e r i e s s p e C i F i C at i o n s

Commercial Grade

81F

83F

83J

85F

85J

80F

80J

Military Grade

RW70U

RW79U

RW69V

RW74U

RW67V

RW78U

RW68V

Watts

Ohms

0.1-6K

0.1-8K

0.1-20K

0.1-75K

0.1-150K

Voltage

150

100

200

460

1000

Non-Inductive versions available. Insert “N” before tolerance code. Example: 83NF2K21

CharaCteristiCs

Coating

Silicone-ceramic

Core

Ceramic

Terminals

Solder-coated copper clad axial

Derating

Linearly from 100% @ +25°C to 0% @ +275°C.

Tolerance

±5% (J type), ±1% (F type) (other tolerances available)

Power rating

Based on 25°C free air rating

Maximum ohmic values

See chart

Overload

Under 5 watts: 5 times rated wattage for 5 seconds. 5 watts and over: 10 times

rated wattage for 5 seconds

Temperature coefficient

Under 1Ω; ±90 ppm/°C

1 to 9.99Ω: ±50 ppm/°C

10Ω and over; ±20 ppm/°C

Dielectric withstanding voltage

500 VAC: 1 watt rating; 1000 VAC: 2, 3, 5, 7, and 10 watt rating

Dimensions

(in./mm max.)

Watts

Length

0.406 / 10.3

0.437 / 11.1

Diam.

0.219 / 5.6

0.125 / 3.2

Lead gauge

81F

RW70U

RW79U

RW69V

1.5 in. /

38.1mm

min.

85F

85J

80F

80J

83F

83J

0.593 / 15.1

0.937 / 23.8

1.842 / 46.8

0.218 / 5.5

0.343 / 8.7

0.406 /10.3

RW74U

RW67V

RW78U

RW68V

(continued)

1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com

Recommended Resources

Current relay secondary starting circuit

Internal circuit diagram of HM7101 thick film circuit

Ethernet interface circuit

Roxy M15M movement protection circuit

CW200 integrated regulated power supply using PNP power transistor for current expansion

Computer motherboard circuit diagram 810 4_25

[Top Micro Intelligent Display Module] 1: Unboxing: TOPWAY HMT070ETD-1D is an intelligent TFT module equipped with a 32-bit MCU. The graphics engine provides a large number of unique designs. It supports display Ul file preloading and pre-designed disp...; 杨左使 Test/Measurement

College students are asking for help with the RC sine wave oscillator composed of LM324, but the frequency band cannot be adjusted to 100KHz: [i=s]This post was last edited by Darknessyami on 2018-5-25 20:04[/i] [size=14px]The RC sine wave oscillator circuit composed of the LM324 op amp built in the switching power supply class uses a Wien ...; Darknessyami Analog electronics

Can 70V DC be transmitted using wires? Is it a big deal?: Dear experts, I would like to ask, can 70V DC power be transmitted directly with wires? Or must it be transmitted with SMA wires? Please help....; leizikobe FPGA/CPLD

Solution to the problem of not being able to make menuconfig in Ubuntu 10.10: When cross-compiling the Linux 2.6 kernel in Ubuntu , I typed make menuconfig and found that some header files could not be found: root@loong:/opt/linux-2.6.39# make menuconfig HOSTCC scripts/basic/fi...; 多瑙河夏之夜 Embedded System

Use assembly to convert ADC value into temperature value lookup program, please help: The ADC value has been displayed, but I don't know how to write a table lookup program to convert it into a temperature value according to the formula. I would like to ask all the experts in the forum...; lewis1206 Microchip MCU

Jetson Nano Remote Desktop cannot open terminal: Jetson Nano uses Ubuntu 18.04 through xrdp remote desktop. The terminal can be opened normally for the first time, but when the remote desktop is opened again, it is found that the terminal cannot be ...; IC爬虫 ARM Technology

Shortcut: 00 01 02 03 04 05 06 07 08 09 0A 0C 0F 0J 0L 0M 0R 0S 0T 0Z 10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F 1H 1K 1M 1N 1P 1S 1T 1V 1X 1Z 20 21 22 23 24 25 26 27 28 29 2A 2B 2C 2D 2E 2F 2G 2K 2M 2N 2P 2Q 2R 2S 2T 2W 2Z 30 31 32 33 34 35 36 37 38 39 3A 3B 3C 3D 3E 3F 3G 3H 3J 3K 3L 3M 3N 3P 3R 3S 3T 3V 40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4M 4N 4P 4S 4T 50 51 52 53 54 55 56 57 58 59 5A 5B 5C 5E 5G 5H 5K 5M 5N 5P 5S 5T 5V 60 61 62 63 64 65 66 67 68 69 6A 6C 6E 6F 6M 6N 6P 6R 6S 6T 70 71 72 73 74 75 76 77 78 79 7A 7B 7C 7M 7N 7P 7Q 7V 7W 7X 80 81 82 83 84 85 86 87 88 89 8A 8D 8E 8L 8N 8P 8S 8T 8W 8Y 8Z 90 91 92 93 94 95 96 97 98 99 9A 9B 9C 9D 9F 9G 9H 9L 9S 9T 9W

Popular Components