sPeCiFiCATiONs
Material
Core:
Ceramic.
Coating:
Vitreous enamel except
for values above 4.7K (3W) and
7.5K (5W), which are supplied in
silicone-ceramic coatings.
Terminals:
Solder coated radial.
#20 ga. tinned terminals require
0.046 in. (1.168 mm) holes (2).
RoHS solder composition is 96%
Sn, 3.5% Ag, 0.5% Cu
Derating:
Linearly from
100% @ +25°C to 0% @
+350°C.
Note:
Values above 3.9K (3W)
and 8.2K (5W) involve very fine
resistance wire and should not
be used in critical applications
without burn-in and/or thermal
cycling.
Electrical
Tolerance:
±5% (J)
(other tolerances available).
Power rating:
Based on 25°C free
air rating.
Overload:
3 watt: 5 times rated wattage for
5 seconds.
5.25 watt: 10 times rated watt-
age for 5 seconds.
Temperature coefficient:
±260
ppm/°C.
To calculate max. amps:
use the
formula
√P/R.
FeATuRes
• Radial construction for direct
insertion into printed circuit
boards; fit standard 0.10 inch
matrix boards with standard
0.046 inch diameter holes.
Provides a built in stand-off to
reduce board temperature.
• Space saving radial terminals
reduce the total length require-
ment compared to axial terminal
resistors and increase packaging
density possibilities.
• Flame resistant lead free vitre-
ous enamel coating.
• RoHS compliant; add “E” suffix
to part number to specify.
Tubular Radial Terminal
Wirewound for PC Board Applications
L
±0.016"
D
max.
PC-58 Series
H
±0.031"
0.25"±0.031
6.35 mm
±
0.794
A
±0.010"
0.031" min.
0.79 mm
Dimensions (in. /
mm)
series
Wattage Ohms
Length
Height
Diam.
R3
(vitreous) 3
1-3.9K 0.438 /
11.13
0.469 /
11.91
0.313 /
7.95
(silicone)
4K-10K
R5
(vitreous) 5.25
1-7.4K 0.625 /
15.88
0.516 /
13.11
0.344 /
8.74
(silicone)
7.5K-20K
Dim. A
Voltage
0.30 /
7.62
103
0.50 /12.70
187
S ta n d a r d pa rt n u m b e r S f o r p c - 5 8 S e r i e S
Ohmic value
Ohmic value
Ohmic value
Ohmic value
Wattage
R3J–––
3
R5J–––
5
Part No.
Prefix
Suffix
1R0
1R5
2R0
2R4
3R0
3R9
5R0
5R1
5R6
7R5
10R
15R
18R
20R
22R
25R
30R
40R
50R
Wattage
R3J–––
3
R5J–––
5
Part No.
Prefix
Suffix
51R
56R
68R
75R
82R
100
120
150
160
200
220
250
270
300
330
350
390
400
Wattage
R3J–––
3
R5J–––
5
Part No.
Prefix
Suffix
430
500
510
560
600
620
750
800
820
910
1K0
1K2
1K3
1K5
1K8
2K0
2K2
2K4
Wattage
Part No.
Prefix
Suffix
R3J–––
3
R5J–––
5
o r d e r i n g i n f o r m at i o n
RoHS
Compliant
R5J1K0E
PC-58 Wattage Tolerance Ohm Value
Example:
Series
J = 5%
1R0 = 1.0Ω
10R = 10.0Ω
250 = 250Ω
4K7 = 4,700Ω
1
1.5
2
2.4
3
3.9
5
5.1
5.6
7.5
10
15
18
20
22
25
30
40
50
51
56
68
75
82
100
120
150
160
200
220
250
270
300
330
350
390
400
430
500
510
560
600
620
750
800
820
910
1000
1200
1300
1500
1800
2000
2200
2400
2500
2700
3000
3300
3900
4700
5000
5600
6200
6800
7500
8200
9000
9100
10,000
12,000
15,000
20,000
2K5
2K7
3K0
3K3
3K9
4K7
5K0
5K6
6K2
6K8
7K5
8K2
9K0
9K1
10K
12K
15K
20K
= Standard values
Values above 3.9K
(3W) and 8.2K (5W)
involve very fine
resistance wire and
should not be used
in critical applica-
tions without burn-
in and/or thermal
cycling.
Values above 4.7K
(3W) and 7.5K (5W)
supplied in silicone-
ceramic coatings
instead of vitreous
enamel.
Our friendly Customer
service team can be
reached at 866-9-OHMiTe
Check product availability at
www.ohmite.com
Ohmite Mfg. Co.
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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