参数资料
| 型号： | F30J750E |
| 厂商： | Ohmite |
| 文件页数： | 1/1页 |
| 文件大小： | 0K |
| 描述： | RES 750 OHM 30W 5% RADIAL WW |
| 标准包装： | 1 |
| 系列： | Stackohm® 250 |
| 电阻（欧姆）： | 750 |
| 功率（瓦特）： | 30W |
| 复合体： | 绕线 |
| 温度系数： | ±260ppm/°C |
| 容差： | ±5% |
| 涂层，外壳类型： | 搪瓷涂层 |
| 安装特点： | 法兰支架，直角 |
| 尺寸/尺寸： | 1.250" L x 1.000" W（31.75mm x 25.40mm） |
| 高度： | 0.563"（14.29mm） |
| 引线型： | 焊片 |
| 包装： | 散装 |
| 封装/外壳： | 径向，扁椭圆形 |
| 其它名称： | Q4161620 |
RESTRICTIONS. THEY ARE ALSO
ING BRACKETS SO THEY CAN BE
FASTENED TO A CHASSIS AND
ING IN A SMALLER SIZE PER WATT.
DURABLE 250 TYPE RESISTORS ARE
FULLY WELDED AND COATED WITH
FEATURES
? STACKABLE
Overload: 10X RATED WATTAGE FOR
DUCTS HEAT TO MOUNTING SURFACE.
? LOW PROFILE FOR USE IN EQUIPMENT
Temperature coefficient:
1 TO 20 Ω : ±400 PPM/°C.
Dielectric withstanding
voltage: 500 VAC: 10 AND
????????
To calculate max. amps:
USE THE FORMULA √ P/R
3.175 mm 15.875 mm
10W & 20W
0.110":
0.125" *
2.776 mm
0.250"
6.350 mm
4.763 mm
30W, 40W & 55W
0.250"
0.250" *
6.350 mm
6.350 mm
WHEN LIMITED SPACE IS A CON- ? ALL-WELDED CONSTRUCTION.
SIDERATION, CHOOSE OHMITE’S ? ROHS COMPLIANT PRODUCT AVAIL-
“THIN” STACKABLE 250 TYPE ABLE. ADD “E” SUFFIX TO PART NUM-
RESISTORS. THESE OVAL-SHAPED BER TO SPECIFY.
CERAMIC-CORE RESISTORS FEATURE
A LOW PROFILE TO PERMIT INSTAL- SPECIFICATIONS
LATION IN SPACES WITH HEIGHT Material
Coating: LEAD FREE VITREOUS
EQUIPPED WITH INTEGRAL MOUNT- ENAMEL.
Core: CERAMIC.
Terminals: TINNED LUG WITH HOLE.
STACKED IN LOCATIONS WITH LIM- ROHS SOLDER COMPOSITION IS 96%
ITED SURFACE AREA. SN, 3.5% AG, 0.5% CU
WHEN PROPERLY FASTENED, Derating: LINEARLY FROM 100% @
THE MOUNTING BRACKETS ADD +25°C TO 0% @ +350°C.
A HEAT SINKING BENEFIT RESULT- Electrical
Tolerance: ±5% (J)
Power rating: BASED ON MOUNT-
ING A SINGLE RESISTOR ON A METAL
LEAD FREE VITREOUS ENAMEL. SURFACE MEASURING 10” (254MM)
SQUARE BY 0.04” (1.016MM)
THICK. REDUCE RATING BY 15%
? SMALL SIZE-TO-POWER RATIO. WHEN MOUNTING ON NON-METALLIC
SURFACE.
? INTEGRAL MOUNTING BRACKET CON-
5 SECONDS IF MAX. VOLTAGE IS NOT
EXCEEDED.
WHERE SPACE IS LIMITED.
ORDERING INFO OVER 20 Ω : ±260 PPM/°C
Series RoHS Compliant
20 WATT RATING. 1000 VAC:
30, 40 AND 55 WATT RAT-
Coating Wattage Tolerance Ohms ING (MEASURED FROM LUG TO
Blank = Vitreous F = 1% 1R0 = 1 ? MOUNTING BRACKET)
C = Centohm H = 3% 250 = 250 ?
S = Silicone J = 5% 1K0 = 1,000 ?
K = 10% 25K = 25,000 ?
25K5 = 25,500 ?
250 Series
‘Thin’ Stackohm ?
Vitreous Enamel Power
0.125" 0.625"
0.031" Diam.
0.794 mm 0.063"
1.588 mm
Diam.
0.125"
3.175 mm
L
A
3.175 mm
0.375"
9.525 mm
0.188"
0.125" Diam.
3.175 mm 0.109"
2.776 mm
Diam.
0.196"
4.979 mm
L
A
0.125"
3.175 mm 0.438"
11.113 mm
*Reference dimension only; varies according to resistance value.
Note: When resistors are stacked, use washers or spacers as required to insure clearance
and improve power dissipation.
MADE-TO-ORDER PARTS
Series Wattage Ohms
F10 10 1.0-15K
Dimensions (in. / mm ) Max.
Length L Length A Voltage*
0.750 / 19.050 1.000 / 25.400 187
???????????????
H = Stacking stud high 1K00 = 1,000 ?
25K0 = 25,000 ?
45 = 450 Fixed
25K5 = 25,500 ?
See web- Terminal Type Tolerance RoHS
site for See “Resistor Terminals for Tubular Cores” J = 5% Compliant
custom
core info
Series Wattage & Mounting Brackets Ohms
Vitreous enamel: Core Code (user supplies bracket for core TB) Example:
Silicone ceramic:
U = Unit type
46 = 460 Adjustable
25 = 250 Fixed See “Core and B = Stacking box 1R00 = 1 ?
26 = 260 Adjustable Terminal Selection” S = Stacking stud, std. height 250R = 250 ?
F20 20 1.0-50K 2.000 / 50.800 2.313 / 58.750 815
F30 30 1.0-10K 1.250 / 31.750 2.000 / 50.800 281
F40 40 1.0-25K 2.000 / 50.800 2.750 / 69.850 655
F55 55 1.0-30K 3.500 / 88.900 4.250 / 107.950 1405
Adjustable versions available. Consult Ohmite.
Other sizes available. Consult Ohmite.
Also available in low cost Centohm or Silicone coating. Consult Ohmite.
* Maximum Voltage is based on Ohm’s Law [V= √ P*R] as limited by the resistance
value of specified product
S TA N D A R D PA RT N U M B E R S F O R 2 5 0 S E R I E S
Part No.
Prefix
Suffix
Wattage
Part No.
Prefix
Suffix
Wattage
Part No.
Prefix
Suffix
Wattage
1
1.5
2
––– 1R0E
––– 1R5E
––– 2R0E
50
75
100
––– 50RE
––– 75RE
––– 100E
1,500
2,000
2,500
––– 1K5E
––– 2K0E
––– 2K5E
= Standard values; check availability
using the worldwide inventory
search at www.ohmite.com
3
––– 3R0E
150
––– 150E
3,000
––– 3K0E
4
––– 4R0E
200
––– 200E
4,000
––– 4K0E
5
––– 5R0E
250
––– 250E
5,000
––– 5K0E
7.5
––– 7R5E
300
––– 300E
6,000
––– 6K0E
10
––– 10RE
400
––– 400E
7,500
––– 7K5E
15
––– 15RE
500
––– 500E
10,000
––– 10KE
20
––– 20RE
750
––– 750E
15,000
––– 15KE
25
––– 25RE
800
––– 800E
20,000
––– 20KE
30
––– 30RE
1,000
––– 1K0E
25,000
––– 25KE
40
––– 40RE
1,250
––– 1K25E
40,000
––– 40KE
Ohmite Mfg. Co.
1-866-9-OHMITE ? INT’L 1-847-258-0300 ? FAX 1-847-574-7522 ? WWW.OHMITE.COM ? INFO@OHMITE.COM
33
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| F30J75R | 功能描述:线绕电阻器 - 底架安装 30watt 75ohm 5% Stackohm RoHS:否 制造商:Vishay/Dale 电阻:7 Ohms 容差:1 % 功率额定值:100 W 温度系数:50 PPM / C 系列:RH 工作温度范围:- 55 C to + 250 C 尺寸:46.02 mm Dia. x 46.02 mm W x 88.9 mm L x 44.45 mm H 封装:Bulk 产品:Power Resistors Wirewound Aluminum Housed |
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