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参数资料
| 型号： | D25K5R0 |
| 厂商： | Ohmite |
| 文件页数： | 1/1页 |
| 文件大小： | 0K |
| 描述： | RESISTOR POWER ADJ 5.0 OHM 25W |
| 标准包装： | 1 |
| 系列： | 210 |
| 电阻（欧姆）： | 5 |
| 功率（瓦特）： | 25W |
| 容差： | ±10% |
| 调节型： | 滑动式 |
| 直径： | 0.563" 外径，0.313" 内径（14.30mm x 7.94mm） |
| 长度： | 2.000"（50.80mm） |
| 安装类型： | 底座安装 |
| 端子： | 焊片 |
| 封装/外壳： | 圆柱形，管件 |
| 包装： | 散装 |
| 相关产品： | 9S-10-ND - MOUNTING BRACKET 25/50/75W 6120K-2-ND - MOUNTING HDWR BRACKET ELONGATED 6101-2-ND - MOUNTING HDWR BRACKET SLOTTED 9E-100-ND - BRACKET MOUNTING VP25K SERIES |
| 其它名称： | D25K5.0 |
210 Series
Dividohm ? Vitreous Enamel
Adjustable Power
D C
L
Series Wattage Ohms L
D12 12 1.0-10K 1.75 / 44.4
D25 25 1.0-25K 2.0 / 50.8
D50 50 1.0-100K 4.0 / 101.6
D75 75 1.0-100K 6.0 / 152.4
D100 100 1.0-100K 6.5 / 165.1
D175 175 1.0-100K 8.5 / 215.9
D225 225 1.0-100K 10.5 / 266.7
Dimensions (in. / mm )
D
0.313 / 7.94
0.562 / 14.3
0.562 / 14.3
0.562 / 14.3
0.750 / 19.1
1.125 / 28.6
1.125 / 28.6
FEATURES
? TERMINALS SUITABLE FOR SOLDERING
OR BOLT CONNECTION.
? ADJUSTABLE LUG SUPPLIED.
? HIGH WATTAGE APPLICATIONS.
? ALL-WELDED CONSTRUCTION.
? RUGGED LEAD FREE VITREOUS ENAM-
EL COATING.
? FLAME RESISTANT COATING.
? THUMB-SCREW-ADJUSTABLE LUG
AVAILABLE (PART NO. 2160) FOR
1.125” CORE RESISTORS.
? ROHS COMPLIANT PRODUCT AVAIL-
ABLE. ADD “E” SUFFIX TO PART NUM-
BER TO SPECIFY.
Core Standard
C Code Voltage Terminal
0.188 / 4.76 D 565 57
0.313 / 7.94 K 625 40
0.313 / 7.94 K 1625 40
0.313 / 7.94 K 2625 40
0.50 / 12.7 M 2845 40
0.75 / 19.1 P 3595 46
0.75 / 19.1 P 4595 46
Terminals: SOLDER COATED RADIAL
LUG. ROHS SOLDER COMPOSITION IS
96% SN, 3.5% AG, 0.5% CU
Adjustable terminal: NICKEL
PLATED STEEL. (SCREWDRIVER TYPE
ADJUSTABLE LUG SUPPLIED STANDARD.
OTHER TYPES, INCLUDING SILVER CON-
TACT UNITS, AVAILABLE.)
Derating: LINEARLY FROM 100% @
+25°C TO 0% @ +350°C.
Electrical
Tolerance: ±10% (K)
Power rating: BASED ON 25°C
FREE AIR RATING. THE STATED WATT-
AGE RATING APPLIES ONLY WHEN THE
ENTIRE RESISTANCE IS IN THE CIRCUIT.
SETTING THE LUG AT AN INTERMEDIATE
POINT REDUCES THE WATTAGE RAT-
ING BY APPROXIMATELY THE SAME
PROPORTION. EXAMPLE: IF THE LUG IS
SET AT HALF RESISTANCE, THE WATT-
AGE IS REDUCED BY APPROXIMATELY
ONE-HALF.
Overload: 10 TIMES RATED WATTAGE
FOR 5 SECONDS.
Temperature coefficient:
±260 PPM/°C
REQUIRING SETTINGS AT DIFFERENT RESISTANCE VALUES. THESE WIRE-
WOUND RESISTORS ARE EQUIPPED WITH AN ADJUSTABLE LUG, MAKING
THEM IDEAL FOR ADJUSTING CIRCUITS, OBTAINING ODD RESISTANCE VALUES
AND SETTING EQUIPMENT TO MEET VARIOUS LINE VOLTAGES. 210 TYPE
RESISTORS FEATURE A HOLLOW CORE TO PERMIT SECURE FASTENING WITH
SPRING-TYPE CLIPS OR THRU BOLTS WITH WASHERS. THEY ALSO OFFER THE
DURABILITY OF LEAD FREE VITREOUS ENAMEL COATING AND ALL-WELDED
CONSTRUCTION. MOUNTING BRACKETS NOT INCLUDED WITH RESISTORS.
D500 500 1.5-15K 12.0 / 304.8 2.50 / 63.5 1.75 / 44.5 S 4970 45
D1000 1000 3.0-27.7K 20.0 / 508.0 2.50 / 63.5 1.75 / 44.5 S 8900 45
Other sizes available; contact Ohmite. Also available in low cost Centohm or Silicone coating; contact Ohmite.
CHOOSE OHMITE’S 210 TYPE ADJUSTABLE RESISTORS FOR APPLICATIONS SPECIFICATIONS
Adjustability IS 10% TO 90% OF FULL
VALUE. WATTAGE IS PROPORTIONAL TO
THIS ADJUSTED RESISTANCE VALUE.
Material
Coating: LEAD FREE VITREOUS
ENAMEL.
Core: TUBULAR CERAMIC.
Dielectric withstanding voltage:
1000 VAC: 12 TO 100 WATT RATING.
3000 VAC: 175 AND 225 WATT RAT-
ING (MEASURED FROM TERMINAL TO
MOUNTING BRACKET)
To calculate max. amps: USE THE
FORMULA √ P/R.
See page 36
for mounting hardware
Coating
Wattage
Ohms
R500 = 0.500 ?
210 = Vitreous
1R00 = 1 ?
410 = Silicone Ceramic
ORDERING INFO
Coating
Blank = Vitreous
C = Centohm RoHS Compliant
S = Silicone
????????
Series Wattage Tolerance Ohms
J = 5% 1R0 = 1 ?
K = 10% 250 = 250 ?
1K0 = 1,000 ?
25K = 25,000 ?
25K5 = 25,500 ?
Wattage
Part No.
Prefix
Suffix
MADE-TO-ORDER
Core Diameter Terminal Type
See “Core and See “Resistor Terminals
Terminal Selection” for Tubular Cores” RoHS Compliant
??????????????
Tolerance
J = 5%
K = 10%
610 = Centohm 250R = 250 ?
1K00 = 1,000 ?
See website for custom 25K0 = 25,000 ?
core and terminal info 25K5 = 25,500 ?
S TA N D A R D PA RT N U M B E R S F O R 2 1 0 S E R I E S
Wattage
Part No.
Prefix
Suffix
Power limitations for high resis-
tance values: WHEN RESISTANCE
EXCEEDS THE RESISTANCE VALUES LISTED
BELOW, DERATE THE POWER RATING BY
25% TO IMPROVE RELIABILITY:
Power Resistance NO POWER
rating value DERATING
12W 4,500 Ω NECESSARY FOR
25W 9,000 Ω RATINGS HIGHER
50W 20,000 Ω THAN 100W.
75W 35,000 Ω
100W 50,000 Ω
Wattage
Part No.
Prefix
Suffix
1.0 ––– 1R0E
150
––– 150E
3,000
––– 3K0E
2
––– 2R0E
200
––– 200E
4,000
––– 4K0E
3
––– 3R0E
250
––– 250E
5,000
––– 5K0E
4
––– 4R0E
300
––– 300E
6,000
––– 6K0E
5
––– 5R0E
400
––– 400E
7,000
––– 7K0E
7.5 ––– 7R5E
500
––– 500E
7,500
––– 7K5E
10
––– 10RE
750
––– 750E
10,000
––– 10KE
15
––– 15RE
800
––– 800E
12,000
––– 12KE
20
25
––– 20RE
––– 25RE
1,000
1,250
––– 1K0E
––– 1K25E
15,000
20,000
––– 15KE
––– 20KE
50
––– 50RE
1,500
––– 1K5E
25,000
––– 25KE
75
––– 75RE
2,000
––– 2K0E
50,000
––– 50KE
100
––– 100E
2,500
––– 2K5E
100,000
––– 100KE
= Standard values; check availability using the worldwide inventory
search at www.ohmite.com
50K Ω and 100K Ω resistance values involve very fine resistance wire and should not be
used in critical applications without burn-in and/or thermal cycling.
32
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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