EVFT119 Datasheet, PDF (1/2 Pages) Ohmite Mfg. Co. – Euro-Power Wirewound Series

Wirewound
Tubular
Euro-Power
Wirewound Series
Vitreous Enamel Power
Select Euro series fixed resistors for applications
requiring wattage ratings from 72 to 1000 watts.
Suitable for rugged applications, Euro-Power resis-
tors are spot welded producing stronger mechani-
cal and electrical connections. The vitreous enamel
coating was specifically developed and provides
protection against moisture and mechanical damage.
Euro-Power resistors are equipped with lug termi-
nals suitable for soldering or sturdy bolt connection.
Mounting brackets not included with resistors.
F eat u res
• Terminals suitable for soldering or bolt connection
• High wattage applications
• Rugged lead free virtreous enamel coating
• Flame resistant coating
• All-welded construction
• "Live" mounting option
SERIES SPECIFICATIONS
Series Wattage
EVFT119
72
EVFT170 160
EVFT252 280
ESFT375 700
EVRT170 200
EVRT252 350
ESRT375 1000
Ohms
0.4Ω-250K
0.5Ω-100K
0.2Ω-125K
0.2Ω-200K
0.10-18Ω
0.22-33Ω
0.33-56Ω
Voltage
1400
2100
3300
5000
Construction
Round wire
Round wire
Round wire
Round wire
Ribbon wire
Ribbon wire
Ribbon wire
Non-Inductive
versions avail-
able; Other sizes
available; Also
available in low
cost Centohm or
Silicone coating;
Consult Ohmite.
c h aracteristics
Coating Lead free vitreous enamel. Very large models (700 watts and up) are supplied in Silicone Ceramic. Also
available in low-cost Centohm coating; Consult factory.
Core Tubular ceramic.
Terminals solder coated radial lug with RoHS composition solder
Derating Linearly from 100% @ +25°C to 0% @ +350°C.
Tolerance ±5% 1Ω and over (J); ±10% under 1Ω (K)
Power rating Based on 25°C free air rating.
Overload 10 times rated wattage for 5 seconds.
Temperature coefficient 1 to 20Ω: ±400 ppm/°C; Above 20Ω: ±260 ppm/°C; Ribbon wire: 400ppm/°C
Dielectric withstanding voltage 1000 VAC: 72 to 160 watt rating. 3000 VAC: 280 to 700 watt rating (Measured from terminal to mount-
ing bracket)
To calculate max. amps use the formula √P/R
(mm)
S o l d er ta b D I M E N S I O N S
L
D
C
H ref.
J max.
Wattage
Round wire Ribbon wire
L
D
C
H ref.
J max.
72
N/A
119
20.3
9.2
14.3
39.4
160
200
170
25.5
12.4
15.9
45.9
280
350
252
30.6
17.5
19.1
54.1
700
1000
375
51.0
27.9
19.1
74.1
Core Code
EM
EN
EP
ER
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