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F40J2K0E

Description
LED Display Drivers 8-Digit LED Display Driver
CategoryPassive components    The resistor   
File Size272KB,3 Pages
ManufacturerOhmite
Websitehttps://www.ohmite.com
Environmental Compliance
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F40J2K0E Overview

LED Display Drivers 8-Digit LED Display Driver

F40J2K0E Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerOhmite
package instructionChassis Mount,
Reach Compliance Codecompliant
ECCN codeEAR99
Samacsys DescriptionOhmite F40 Series Vitreous Enamel Tinned Lug High Power Wire Wound Resistor, 2000Ω ±5% 40W
structureAll-Welded
JESD-609 codee1
Manufacturer's serial number250
Installation featuresCHASSIS MOUNT
Number of terminals2
Maximum operating temperature350 °C
Package diameter25.4 mm
Package length50.8 mm
Package shapeTUBULAR PACKAGE
Package formChassis Mount
Rated power dissipation(P)40 W
Rated temperature25 °C
resistance2000 Ω
Resistor typeFIXED RESISTOR
series250
surface mountNO
technologyWIRE WOUND
Temperature Coefficient260 ppm/°C
Terminal surfaceTin/Silver/Copper (Sn/Ag/Cu)
Terminal shapeLUG
Tolerance5%
Operating Voltage655 V
250 Series
‘Thin’ Stackohm®
Vitreous Enamel Power
When limited space is a consideration, choose
Ohmite’s “thin” stackable 250 Type resistors. These
oval-shaped ceramic-core resistors feature a low
profile to permit installation in spaces with height
restrictions. They are also equipped with integral
mounting brackets so they can be fastened to a
chassis and stacked in locations with limited surface
area.
When properly fastened, the mounting brackets
add a heat sinking benefit resulting in a smaller size
per watt. Durable 250 Type resistors are fully welded
and coated with lead free vitreous enamel.
Series
F10
F20
F30
F40
F55
Wattage
10
20
30
40
55
F e at u r e S
• Small size-to-power ratio.
• Stackable
• Integral mounting bracket conducts heat to
mounting surface.
• Low profile for use in equipment where space is
limited.
• All-welded construction.
• RoHS compliant product available. Add “E” suffix to
part number to specify.
Ohms
1.0-15K
1.0-50K
1.0-10K
1.0-25K
1.0-30K
Max. Voltage*
187
815
281
655
1405
S e r i e S S P e c i F i c at i O N S
Adjustable versions and other sizes available; Consult Ohmite Also available
in low cost Centohm or Silicone coating; Consult Ohmite.
* Maximum Voltage is based on Ohm’s Law [V=√P*R] as limited by the resis-
tance value of specified product
characteriSticS
Coating
Lead free vitreous enamel
Terminals
Tinned lug with hole. RoHS solder composition is 96% Sn, 3.5% Ag, 0.5% Cu
Derating
Linearly from 100% @ +25°C to 0% @ +350°C
Power rating
Based on mounting a single resistor on a metal surface measuring 10”
(254mm) square by 0.04” (1.016mm) thick. Reduce rating by 15% when
mounting on non-metallic surface
Overload
10x rated wattage for 5 seconds if max. voltage is not exceeded
Tolerance
±5% (J)
Core
Ceramic
Temperature
1 to 20Ω: ±400 ppm/°C
coefficient
Over 20Ω: ±260 ppm/°C
Dielectric with-
500 VAC: 10 and 20 watt rating. 1000 VAC: 30, 40 and 55 watt rating (mea-
standing voltage
sured from lug to mounting bracket)
Max. amps
To calculate, use the formula √P/R
110
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
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