40 Series
Ohmicone ? Silicone-Ceramic Conformal
Axial Term. Wirewound, 1% and 5% Tol. Std.
1.5 IN. / 38.1mm L D
FEATURES
? ECONOMICAL
? APPLICATIONS INCLUDE COMMERCIAL,
INDUSTRIAL AND COMMUNICATIONS
EQUIPMENT
? STABILITY UNDER HIGH TEMPERATURE
CONDITIONS
? ALL-WELDED CONSTRUCTION
? ROHS COMPLIANT; ADD “E” SUFFIX
TO PART NUMBER TO SPECIFY.
SPECIFICATIONS
Material
Coating: CONFORMAL SILICONE-
CERAMIC.
Core: CERAMIC.
Terminals: SOLDER-COATED COPPER
CLAD AXIAL. ROHS SOLDER COM -
POSITION IS 96% SN, 3.5% AG,
0.5% CU
Derating
ORDERING INFO
Overload: UNDER 5 WATTS:
5 TIMES RATED WATTAGE FOR 5
SECONDS. 5 WATTS AND OVER:
41 N JR10E
UNDER 1 Ω : ±90 PPM/°C
1 Ω TO 9.99 Ω : ±50 PPM/°C
10 Ω AND OVER: ±20
PPM/°C
Dimensions(in./mmmax.) Lead
Series Wattage Ohms Length Diam. Voltage ga.
41 1.0 0.10-6K 0.437 / 11.1 0.125 / 3.2 150 24
42 2.0 0.10-8K 0.406 / 10.3 0.219 / 5.6 100 20
43 3.0 0.10-20K 0.593 / 15.1 0.219 / 5.6 200 20
45 5.0 0.10-70K 0.937 / 23.8 0.343 / 8.7 460 18
47 7.0 0.10-80K 1.280 / 32.5 0.343 / 8.7 670 18
40 10.0 0.10-150K 1.900 / 48.3 0.406 / 10.3 1000 18
Non-Inductive versions available. Insert “N” before tolerance code. Example: 42NJ27R
OHMITE 40 SERIES RESISTORS ARE THE MOST ECONOMICAL CONFORMAL
SILICONE-CERAMIC COATED RESISTORS OFFERED. THESE ALL-WELDED UNITS
ARE CHARACTERIZED BY THEIR LOW TEMPERATURE COEFFICIENTS AND RESIS -
TANCE TO THERMAL SHOCK, MAKING THEM IDEAL FOR A WIDE RANGE OF
ELECTRICAL AND ELECTRONIC APPLICATIONS.
UNITS WITH 1% AND 5% TOLERANCES ARE IDENTICAL IN CONSTRUCTION
AND ELECTRICAL SPECIFICATIONS. DURABLE BUT ECONOMICAL 40 SERIES
RESISTORS EXCEED INDUSTRY REQUIREMENTS FOR QUALITY.
LINEARLY FROM
100% @ +25°C TO
0% @ +275°C.
Electrical
Tolerance: ±5% (J TYPE), ±1%
(F TYPE) (OTHER TOLERANCES AVAIL -
ABLE).
Power rating: BASED ON
25°C FREE AIR RATING (OTHER
40 Series WATTAGES AVAILABLE).
OHMICONE ? Non-Inductive
SILICONE CERAMIC Winding
CONFORMAL AXIAL OPTIONAL (BLANK RoHS
T ERM. WIREWOUND = STD. WINDING) Compliant
10 TIMES RATED WATTAGE FOR
5 SECONDS.
Wattage Tolerance Resistance Value Temperature coefficient:
1 = 1W F= 1% R10 = 0.10 ?
2 J = 5% 1R0 = 1.0 ?
3 10R = 10.0 ?
5 250 = 250 ?
7 1K0 = 1,000 ?
0 = 10W 4K5 = 4,500 ?
50K = 50,000 ?
S TA N D A R D PA RT N U M B E R S F O R 4 0 S E R I E S
Wattage and Tolerance
Wattage and Tolerance
Wattage and Tolerance
1% Tolerance
5% Tolerance
1% Tolerance
5% Tolerance
1% Tolerance
5% Tolerance
Part No.
Prefix
Suffix
Part No.
Prefix
Suffix
Part No.
Prefix
Suffix
0.1
0.15
0.2
––– R10
––– R15
––– R20
68
75
82
––– 68R
––– 75R
––– 82R
2,200
2,500
2,700
––– 2K2
––– 2K5
––– 2K7
0.25
––– R25
100
––– 100
3,000
––– 3K0
0.3
––– R30
120
––– 120
3,300
––– 3K3
0.33
––– R33
125
––– 125
3,500
––– 3K5
0.4
––– R40
150
––– 150
3,900
––– 3K9
0.5
0.75
1
1.5
2
2.2
3
4
5
7.5
10
––– R50
––– R75
––– 1R0
––– 1R5
––– 2R0
––– 2R2
––– 3R0
––– 4R0
––– 5R0
––– 7R5
––– 10R
180
200
220
225
250
270
300
330
350
390
400
––– 180
––– 200
––– 220
––– 225
––– 250
––– 270
––– 300
––– 330
––– 350
––– 390
––– 400
4,000
4,500
4,700
5,000
6,000
6,800
7,000
7,500
8,000
9,000
10,000
––– 4K0
––– 4K5
––– 4K7
––– 5K0
––– 6K0
––– 6K8
––– 7K0
––– 7K5
––– 8K0
––– 9K0
––– 10K
12
15
––– 12R
––– 15R
450
470
––– 450
––– 470
12,000
13,000
––– 12K
––– 13K
18
20
22
25
27
30
33
35
39
40
––– 18R
––– 20R
––– 22R
––– 25R
––– 27R
––– 30R
––– 33R
––– 35R
––– 39R
––– 40R
500
560
600
680
750
800
820
900
1,000
1,100
––– 500
––– 560
––– 600
––– 680
––– 750
––– 800
––– 820
––– 900
––– 1K0
––– 1K1
15,000
17,000
20,000
22,000
25,000
30,000
33,000
35,000
40,000
50,000
––– 15K
––– 17K
––– 20K
––– 22K
––– 25K
––– 30K
––– 33K
––– 35K
––– 40K
––– 50K
Shaded values
involve very fine
resistance wire
and should not
be used in criti-
cal applications
without burn-in
and/or thermal
cycling.
47
50
56
62
––– 47R
––– 50R
––– 56R
––– 62R
1,200
1,500
1,800
2,000
––– 1K2
––– 1K5
––– 1K8
––– 2K0
= Standard values
= Non-standard values subject to mini-
mum handling charge per item
Check product availability at www.ohmite.com
26
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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