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F30J500E

Description
Wirewound Resistors - Chassis Mount 30watt 500ohm 5% High Power
CategoryPassive components   
File Size272KB,3 Pages
ManufacturerOhmite
Websitehttps://www.ohmite.com
Environmental Compliance
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F30J500E Overview

Wirewound Resistors - Chassis Mount 30watt 500ohm 5% High Power

F30J500E Parametric

Parameter NameAttribute value
Product AttributeAttribute Value
ManufacturerOhmite
Product CategoryWirewound Resistors - Chassis Mount
RoHSDetails
Resistance500 Ohms
Power Rating30 W
Tolerance5 %
Temperature Coefficient260 PPM / C
Voltage Rating281 V
Operating Temperature Range+ 25 C to + 350 C
Length31.75 mm
Width25.4 mm
PackagingBulk
Diameter25.4 mm
FeaturesTubular Resistors
TechnologyWirewound
Termination StyleSolder Lug
Mounting StyleChassis Mount
Maximum Operating Temperature+ 350 C
Minimum Operating Temperature+ 25 C
Factory Pack Quantity1
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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