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81F4R02 PDF预览

81F4R02

更新时间: 2024-11-14 13:47:39
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描述
High Power

81F4R02 数据手册

  
Electrical  
Tolerance: ±5% (J type),  
±1% (F type)  
(other tolerances available).  
Power rating: Based on 25°C free  
air rating.  
Maximum ohmic values:  
See chart.  
F E A T U R E S  
• Designed for precision power  
applications  
• All-welded construction  
• RW Series “Mil” value resistors  
marked with “Mil” in accordance  
with MIL-R-26 specifications  
80 Series  
®
Commercial Grade Acrasil ‚ Silicone-Ceramic  
Conformal Axial Terminal Wirewound  
1% Tol. (5% avail.)  
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  
1 to 9.99Ω: ±50 ppm/°C  
10Ω and over: ±20 ppm/°C  
Dielectric withstanding voltage:  
500 VAC: 1 watt rating  
1000 VAC: 2, 3, 5, 7 and  
10 watt rating  
S P E C I F I C A T I O N S  
Material  
Coating: Silicone-ceramic.  
Core: Ceramic.  
Terminals: Solder-coated copper  
clad axial.  
Derating: Linearly from  
100% @ +25°C to  
0% @ +275°C.  
RW Series  
Military Grade 80 Series MIL-R-26 Qualified  
1.5 / 38.1  
L
D
Dimensions (in. / mm)  
Length Diam.  
O R D E R I N G I N F O R M AT I O N  
Comm. Military  
Grade Grade Watts Ohms  
Lead  
Voltage ga.  
Non-Inductive Winding  
Commercial Grade  
This product will  
not be made avail-  
able as RoHS  
Optional (blank = std. winding)  
81F  
82  
83F  
83J  
RW70U  
1
2
3
0.1-6K 0.437 / 11.1 0.125 / 3.2 150  
0.1-8K 0.406 / 10.3 0.219 / 5.6 100  
0.1-20K 0.593 / 15.1 0.218 / 5.5 200  
24  
20  
20  
8 1 N J R 1 0  
RW79U  
RW69V  
Compliant.  
80 Series  
Wattage Tolerance Resistance Value  
Acrasil®  
1 = 1W F= 1%  
R10 = 0.10  
1R0 = 1.0Ω  
10R =10.0Ω  
Silicone Ceramic  
Conformal Axial  
Term. Wirewound  
2
J = 5%  
85F  
85J  
RW74U  
RW67V  
5
0.1-75K 0.937 / 23.8 0.343 / 8.7 460  
18  
3
For RoHS  
Compliant equiva-  
lent, see 40 Series.  
5
250 =  
250Ω  
0 = 10W  
1K0 = 1,000Ω  
4K5 = 4,500Ω  
50K = 50,000Ω  
80F  
80J  
RW78U  
RW68V  
10 0.1-150K 1.842 / 46.8 0.406 /10.3 1000 18  
Military Grade  
Non-Inductive versions available. Insert “N” before tolerance code. Example: 83NF2K21  
� ꢀ ꢁ ꢂ ꢃ ꢄ ꢅ ꢅ ꢄ ꢆ  
Tolerance  
F = 1%  
Resistance Value  
R100 = 0.1  
RW Series  
Ohmite’s highest quality conformal axial terminal silicone-ceram-  
ic coated resistors for applications requiring high precision and  
stability. These resistors have a low temperature coefficient and  
maintain a high degree of stability under demanding conditions.  
Military grade  
J = 5%  
1R00 = 1.0�  
10R0 = 10.0�  
1000 = 1001002 = 10K  
1001 = 10001503 = 150K�  
C O M M E R C I A L G R A D E P A R T N U M B E R S  
Wattage  
Wattage  
Wattage  
Wattage  
Wattage  
Part No.  
Prefix   
Suffix  
Part No.  
Prefix   
Suffix  
Part No.  
Prefix   
Suffix  
Part No.  
Prefix   
Suffix  
Part No.  
Prefix   
Suffix  
0.1  
–––R10  
     
    
2.21 –––2R21  
    
51.1 –––51R1  
    
1,210 –––1K21      
27,400 –––27K4    
30,100 –––30K1    
33,200 –––33K2    
37,400 –––37K4    
38,300 –––38K3    
40,200 –––40K2    
45,300 –––45K3    
49,900 –––49K9    
51,100 –––51K1    
56,200 –––56K2    
61,900 –––61K9    
68,100 –––68K1    
0.11 –––R11  
0.121 –––R121      
0.133 –––R133  
0.15 –––R15  
0.162 –––R162  
0.182 –––R182      
0.2  
0.221 –––R221  
0.249 –––R249      
0.274 –––R274     
0.301 –––R301      
0.332 –––R332  
0.374 –––R374  
0.392 –––R392  
0.402 –––R402      
0.453 –––R453     
0.499 –––R499      
0.511 –––R511     
0.562 –––R562      
0.619 –––R619     
0.681 –––R681      
0.75 –––R75     
0.825 –––R825      
2.49 –––2R49      
2.74 –––2R74     
3.01 –––3R01      
3.32 –––3R32  
3.74 –––3R74  
4.02 –––4R02      
4.53 –––4R53     
4.99 –––4R99      
5.11 –––5R11     
5.62 –––5R62      
6.19 –––6R19     
6.81 –––6R81      
7.5 –––7R5     
8.25 –––8R25      
56.2 –––56R2      
61.9 –––61R9     
68.1 –––68R1      
75 –––75R     
82.5 –––82R5      
1,330 –––1K33  
1,500 –––1K5  
1,620 –––1K62  
    
     
    
    
     
    
    
1,820 –––1K82      
    
2,000 –––2K0  
2,210 –––2K21  
     
90.9 –––90R9  
100 –––100  
110 –––110  
121 –––121  
133 –––133  
150 –––150  
162 –––162  
182 –––182  
200 –––200  
221 –––221  
249 –––249  
274 –––274  
301 –––301  
332 –––332  
374 –––374  
402 –––402  
453 –––453  
499 –––499  
511 –––511  
562 –––562  
619 –––619  
681 –––681  
750 –––750  
825 –––825  
909 –––909  
1,000 –––1K0  
1,100 –––1K1  
    
     
    
    
–––R20  
     
2,490 –––2K49      
2,740 –––2K74     
3,010 –––3K01      
    
     
    
3,320 –––3K32  
3,740 –––3K74  
4,020 –––4K02  
4,530 –––4K53  
4,990 –––4K99  
5,110 –––5K11  
5,620 –––5K62  
6,190 –––6K19  
6,810 –––6K81  
7,500 –––7K5  
8,250 –––8K25  
9,090 –––9K09  
10,000 –––10K  
10,500 –––10K5  
11,000 –––11K  
12,100 –––12K1  
13,300 –––13K3  
15,000 –––15K  
16,200 –––16K2  
18,200 –––18K2  
20,000 –––20K  
22,100 –––22K1  
24,900 –––24K9  
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
   
     
    
    
    
    
75,000 –––75K  
82,500 –––82K5  
90,900 –––90K9  
100,000 –––100K  
150,000 –––150K  
200,000 –––200K  
   
     
     
    
9.09 –––9R09  
    
     
    
10  
11  
–––10R  
–––11R  
     
    
12.1  
13.3  
15  
–––12R1      
–––13R3  
–––15R  
     
    
    
     
    
= Standard values  
    
= Non-standard values  
subject to minimum  
handling charge per  
item  
16.2  
18.2  
20  
–––16R2  
–––18R2      
–––20R  
     
    
     
     
    
0.909 –––R909  
1
1.1  
    
     
    
22.1  
24.9  
27.4  
30.1  
33.2  
37.4  
40.2  
45.3  
49.9  
–––22R1  
    
Shaded values involve  
very fine resistance wire  
and should not be used  
in critical applications  
without burn-in and/or  
thermal cycling.  
–––1R0  
–––1R1  
–––24R9      
–––27R4     
–––30R1      
–––33R2  
–––37R4  
–––40R2      
–––45R3     
–––49R9      
     
    
1.21 –––1R21      
     
    
1.330 –––1R33  
1.5 –––1R5  
1.62 –––1R62  
1.82 –––1R82      
2
    
     
    
    
    
     
    
Check product availability at  
     
    
www.ohmite.com  
–––2R0  
     
   
22  
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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