ꢂ P ꢀ C ꢃ F ꢃ C A T ꢃ O N ꢂ
Material
F ꢀ A T ꢁ R ꢀ ꢂ
PC-58 Series
Wirewound for PC Board Applications
• 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.
Core: Ceramic.
Tubular Radial Terminal
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.
D
L ±0.016"
max.
H ±0.031"
• Flame resistant lead free vitre-
ous enamel coating.
0.25"±0.031
6.35 mm ±0.794
• RoHS compliant; add “E” suffix
to part number to specify.
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.
A ±0.010"
0.031" min.
0.79 mm
Dimensions (in. / mm)
ꢂeries
Wattage Ohms
Length
Height
Diam.
Dim. A
Voltage
R3 (vitreous)
(silicone)
3
1-3.9K 0.438 / 11.13 0.469 / 11.91 0.313 / 7.95 0.30 / 7.62 103
4K-10K
R5 (vitreous) 5.25
(silicone)
1-7.4K 0.625 / 15.88 0.516 / 13.11 0.344 / 8.74 0.50 /12.70
7.5K-20K
187
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.
S ta n d a r d p a r t n u m b e r S f o r p c - 5 8 S e r i e S
Wattage
Wattage
Wattage
Wattage
= 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.
Part No.
Prefix
Suffix
Part No.
Prefix
Suffix
Part No.
Prefix
Suffix
Part No.
Prefix
Suffix
51
56
68
75
82
51R
56Rꢀ
68Rꢀ ꢀ
1
1R0 ꢀ
1.5 1R5
2R0ꢀ ꢀ
2.4 2R4
3R0ꢀ ꢀ
3.9 3R9ꢀ ꢀ
ꢀ
430ꢀ
500
510
560
600
620
750
800
820
430
500ꢀ ꢀ
510
560
600
620
750ꢀ ꢀ
800
820ꢀ
910ꢀ
1K0ꢀ ꢀ
1K2ꢀ
1K3
1K5ꢀ
1K8
2K0ꢀ ꢀ
2K2
2K4
2500
2700
3000
3300
3900
4700ꢀ
5000
5600
6200
6800
7500
8200
9000
9100
2K5
2K7
3K0
3K3
3K9
4K7
2
ꢀ
ꢀ
o r d e r i n g i n f o r m at i o n
75R
ꢀ
ꢀ
ꢀ
82R ꢀ
100ꢀ ꢀ
120ꢀ ꢀ
150ꢀ
160
200ꢀ
220
250ꢀ ꢀ
270
300
330ꢀ
350
390
400
RoHS
Compliant
3
ꢀ
ꢀ
100
120
150
160
200
220
250
270
300
330
350
390
400ꢀ
ꢀ
5
5R0
ꢀ
5K0ꢀ ꢀ
R 5 J 1 K 0 E
5.1 5R1ꢀ
5.6 5R6
7.5 7R5
5K6
6K2
6K8
7K5
8K2
9K0
9K1
ꢀ
Ohm Value
Example:
PC-58 Wattage Tolerance
ꢀ
ꢀ
Series
J = 5%
1R0 = 1.0Ω
10R = 10.0Ω
250 = 250Ω
4K7 = 4,700Ω
910
ꢀ
10
15
18
20
22
25
30
40
50
10Rꢀ ꢀ
15Rꢀ
1000
1200
1300
1500
1800
2000
2200
2400
ꢀ
ꢀ
18R
ꢀ
20R ꢀ
22R
25R
10,000
12,000
15,000
20,000
10Kꢀ ꢀ
ꢀ
ꢀ
ꢀ
12K
15K
20K
ꢀ
ꢀ
ꢀ
30Rꢀ ꢀ
ꢀ
ꢀ
ꢀ
40R
ꢀ
50Rꢀ ꢀ
Check product availability at www.ohmite.com
Our friendly Customer
ꢂervice team can be
reached at 866-9-OHMꢃTꢀ
Ohmite Mfg. Co. 1600 Golf Rd., Rolling Meadows, IL 60008 • 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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