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D12K500E Datasheet(PDF) 1 Page - Ohmite Mfg. Co.

Part # D12K500E
Description  Terminals suitable for soldering or bolt connection
Download  3 Pages
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Manufacturer  OHMITE [Ohmite Mfg. Co.]
Direct Link  http://www.ohmite.com
Logo OHMITE - Ohmite Mfg. Co.

D12K500E Datasheet(HTML) 1 Page - Ohmite Mfg. Co.

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1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
108
Series
Wattage
Ohms
Core Code
Voltage
Standard Terminal
D12
12
1.0-10K
D
565
57
D25
25
1.0-25K
K
625
40
D50
50
1.0-100K
K
1625
40
D75
75
1.0-100K
K
2625
40
D100
100
1.0-100K
M
2845
40
D175
175
1.0-100K
P
3595
46
D225
225
1.0-100K
P
4595
46
D500
500
1.5-15K
S
4970
45
D1000
1000
3.0-27.7K
S
8900
45
Other sizes available; contact Ohmite. Also available in low cost Centohm or Silicone coating; contact Ohmite.
Adjustability
10% to 90% of full value. Wattage is proportional to this adjusted
resistance value.
Coating
Lead free vitreous enamel.
Core
Tubular ceramic.
Terminals
Solder coated radial lug. RoHS solder composition is 96% Sn,
3.5% Ag, 0.5% Cu
Adjustable
terminal
Nickel plated steel. (Screwdriver type adjustable lug supplied
standard. Other types, including silver contact units, available.)
Derating
Linearly from 100% @ +25°C to 0% @ +350°C.
Tolerance
±10% (K)
Power rating
Based on 25°C free air rating. The stated wattage rating applies
only when the entire resistance is in the circuit. Setting the lug at
an intermediate point reduces the wattage rating by approximately
the same proportion. Example: If the lug is set at half resistance,
the wattage is reduced by approx. one-half.
Overload
10 times rated wattage for 5 seconds.
Temperature
coefficient
±260 ppm/°C
Dielectric
withstanding
voltage
1000 VAC: 12 to 100 watt rating. 3000 VAC: 175 and 225 watt rat-
ing (measured from terminal to mounting bracket)
Max. amps
To calculate, use the formula √P/R.
210 Series
Dividohm® Vitreous Enamel
Adjustable Power
Choose Ohmite’s 210 Type adjustable resistors for
applications requiring settings at different resistance
values. These wirewound resistors are equipped with
an adjustable lug, making them ideal for adjusting
circuits, obtaining odd resistance values and set-
ting equip ment to meet various line voltages. 210
Type resistors feature a hollow core to permit secure
fastening with spring-type clips or thru bolts with
washers. They also offer the durability of lead free
vitreous enamel coating and all-welded construction.
Mounting brackets not included with resistors.
Fea ture S
•Terminalssuitableforsolderingorboltconnection.
•Adjustablelugsupplied
•Highwattageapplications
•All-weldedconstruction
•Ruggedleadfreevitreousenamelcoating.
•Flameresistantcoating
•Additionaladjustablelugsavailable
•RoHScompliantproductavailable.Add“E”suffixto
part number to specify
characteri S tic S
S erie S SP eci F icati ONS
Power limitations for high resis-
tance values:
When resistance
exceeds the resistance values listed
below, derate the Power Rating by
25% to improve reliability:
Power Resistance
rating value
12W
4,500Ω
25W
9,000Ω
50W
20,000Ω
75W
35,000Ω
100W 50,000Ω
No power
derating neces-
sary for ratings
higher than
100W.


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