40 Series
Ohmicone Silicone-Ceramic Conformal
Axial Terminal Wirewound
1% and 5% Tolerance Standard
®
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 resistance 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.
F e at u r e s
• 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.
S e r i e s S P E C I F I C ATI O N S
Series
41
42
43
45
47
40
Wattage
1.0
2.0
3.0
5.0
7.0
10.0
Ohms
0.10-6K
0.10-8K
0.10-20K
0.10-70K
0.10-80K
0.10-150K
Voltage
150
100
200
460
670
1000
Non-Inductive versions available. Insert “N” before tolerance code.
Example: 42NJ27R
C h a r a c t e r i s t i cs
Coating Conformal silicone-ceramic.
Core Ceramic.
Terminals Solder-coated copper clad axial. RoHS solder composition is 96% Sn, 3.5% Ag, 0.5% Cu
Derating Linearly from 100% @ +25°C to 0% @ +275°C.
Tolerance ±5% (J type), ±1% (F type) (other tolerances available).
Power rating Based on 25°C free air rating
Overload Under 5 watts: 5 times rated wattage for 5 seconds. 5 watts and over: 10 times rated wattage for 5 seconds.
Temperature coefficient Under 1Ω: ±90 ppm/°C; 1Ω to 9.99Ω: ±50 ppm/°C; 10Ω and over: ±20 ppm/°C
Operating temp. range -55°C to 275°C
D i m e ns i ons
Series
(in./mm max.)
1.5 in. / 38.1mm
min.
L
D
Wattage
Length
Diam.
41
1.0
0.437 / 11.1
0.125 / 3.2
Lead ga.
24
42
2.0
0.406 / 10.3
0.219 / 5.6
20
43
3.0
0.593 / 15.1
0.219 / 5.6
20
45
5.0
0.937 / 23.8
0.343 / 8.7
18
47
7.0
1.280 / 32.5
0.343 / 8.7
18
40
10.0
1.900 / 48.3
0.406 / 10.3
18
(continued)
84
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
40 Series
Ohmicone Silicone-Ceramic Conformal
Axial Terminal Wirewound
1% and 5% Tolerance Standard
®
O R D ERI N G I N F O RMATI O N
Standard part numbers
40 Series
Ohmicone®
Silicone Ceramic
Conformal Axial
Term. Wirewound
Wattage
1 = 1W
2
3
5
7
0 = 10W
2,200 –––2K2
2,500 –––2K5
2,700 –––2K7
3,000 –––3K0
3,300 –––3K3
3,500 –––3K5
3,900 –––3K9
4,000 –––4K0
4,500 –––4K5
4,700 –––4K7
5,000 –––5K0
6,000 –––6K0
6,800 –––6K8
7,000 –––7K0
7,500 –––7K5
8,000 –––8K0
9,000 –––9K0
10,000 –––10K
12,000 –––12K
13,000 –––13K
15,000 –––15K
17,000 –––17K
20,000 –––20K
22,000 –––22K
25,000 –––25K
30,000 –––30K
33,000 –––33K
35,000 –––35K
40,000 –––40K
50,000 –––50K
= Standard values
Shaded values
involve very fine
resistance wire
and should not
be used in critical applications
without burn-in
and/or thermal
cycling.
= Non-standard values subject to minimum handling charge per item
Non-Inductive
Winding
optional
RoHS
(blank= std.
Compliant
winding)
41NJR10E-T
Tolerance Resistance
F= 1%
R10 = 0.10Ω
J = 5%
1R0 = 1.0Ω
10R = 10.0Ω
250 =
250Ω
1K0 = 1,000Ω
4K5 = 4,500Ω
50K = 50,000Ω
Tape & reel
optional
pc/reel:
41: 5000
42: 1250
43: 1250
45: 1000
47: 500
40: 500
rev 6/20-2
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
40J––– 10
85
45J––– 5
43J––– 3
42J––– 2
41J––– 1
40F––– 10
45F––– 5
43F––– 3
–––68R
–––75R
–––82R
–––100
–––120
–––125
–––150
–––180
–––200
–––220
–––225
–––250
–––270
–––300
–––330
–––350
–––390
–––400
–––450
–––470
–––500
–––560
–––600
–––680
–––750
–––800
–––820
–––900
–––1K0
–––1K1
–––1K2
–––1K5
–––1K8
–––2K0
Part No.
Prefix
Suffix
41F––– 1
68
75
82
100
120
125
150
180
200
220
225
250
270
300
330
350
390
400
450
470
500
560
600
680
750
800
820
900
1,000
1,100
1,200
1,500
1,800
2,000
Ohmic value
40J––– 10
45J––– 5
40J––– 10
43J––– 3
45J––– 5
42J––– 2
43J––– 3
41J––– 1
42J––– 2
40F––– 10
41J––– 1
45F––– 5
40F––– 10
43F––– 3
45F––– 5
41F––– 1
43F––– 3
–––R10
–––R15
–––R20
–––R25
–––R30
–––R33
–––R40
–––R50
–––R75
–––1R0
–––1R5
–––2R0
–––2R2
–––3R0
–––4R0
–––5R0
–––7R5
–––10R
–––12R
–––15R
–––18R
–––20R
–––22R
–––25R
–––27R
–––30R
–––33R
–––35R
–––39R
–––40R
–––47R
–––50R
–––56R
–––62R
Ohmic value
41F––– 1
0.1
0.15
0.2
0.25
0.3
0.33
0.4
0.5
0.75
1
1.5
2
2.2
3
4
5
7.5
10
12
15
18
20
22
25
27
30
33
35
39
40
47
50
56
62
Part No.
Prefix
Suffix
Part No.
Prefix
Suffix
Wattage and Tolerance
1% Tolerance
5% Tolerance
Wattage and Tolerance
1% Tolerance
5% Tolerance
Ohmic value
Wattage and Tolerance
1% Tolerance
5% Tolerance
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Ohmite:
45F47R 45F40R 41F5R0 45F35R 45F30R 40J22R 41F1R0 41F100 41F180 43F35R 43F82R 43F39R
43F25R 43F10R 43F50R 43F75R 43F40R 40F200 45J220 42J470 45J270 42J18R 43F390 42J27R 40F40K
40F2K0 40F3K0 45F1K2 43F1K2 45F4K0 41F250 42J200 45J5K0 45J2K0 45J4K0 41F3R0 45F22K 45F25K
45F20K 45F2R0 45F2R2 45F250 43F120 43F150 41F2K7 41F2K5 43F2K2 41F3K0 45F13K 45F10K 45F12K
41J560 41J500 40J56R 45F7R5 40J10R 40J50R 45J300 41J250 45J82R 45J40R 45J47R 43FR15 45FR25
41FR25 43F3K3 40FR75 45FR75 43FR75 43FR20 43FR30 43FR50 45F1R0 45F150 45F1R5 45F120 41J680
41J33R 41J10R 41J12R 43F1R0 43F330 45F100 45F5R0 45F560 45J150 43J820 43J1R0 43F1K1 42JR20
42JR30 43F4K0 43J10R 43J75R 40J560 40J150 40J100 40J120 43J5K0 41F2R0