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参数资料
| 型号： | TA2K0PHR500KE |
| 厂商： | Ohmite |
| 文件页数： | 1/1页 |
| 文件大小： | 0K |
| 描述： | RES 0.5 OHM 2000W 10% HEAT SINK |
| 标准包装： | 1 |
| 系列： | TAP2000 |
| 电阻（欧姆）： | 0.5 |
| 功率（瓦特）： | 2000W |
| 复合体： | 厚膜 |
| 温度系数： | ±250ppm/°C |
| 容差： | ±10% |
| 涂层，外壳类型： | 涂有环氧树脂 |
| 安装特点： | 法兰 |
| 尺寸/尺寸： | 3.000" L x 3.000" W（76.20mm x 76.20mm） |
| 高度： | 1.248"（31.69mm） |
| 引线型： | #10-32，带螺纹 |
| 包装： | 散装 |
| 封装/外壳： | 盒 |
| 其它名称： | TA2K0PHR50KE TA2K0PHR50KE-ND |
?0.172"
TAP1000and2000
1000 & 2000 Watt
Heat Sinkable Planar
0.193" 0.689"
(4.89mm) (4.37mm) ?10-32 (17.50mm)
1.308"
(33.21mm)
3.000" 1.622"
(76.20mm) (41.20mm)
1.308"
(33.21mm)
THE TAP SERIES DELIVERS
1000W OR 2000W OF CON-
TINUOUS POWER WHEN PROPERLY
MOUNTED TO A LIQUID COOLED
HEAT SINK (BASED ON 85°C
MOUNTING PLATE TEMPERATURE)
APPLICATIONS INCLUDE POWER
CONDITIONING, POWER DISTRIBU-
TION, POWER CONVERSION, AND
POWER CONTROL.
FEATURES
? HIGH ENERGY RATING
? LOW INDUCTANCE
? RESISTOR ELEMENT ELECTRICALLY
ISOLATED
? HIGH DIELECTRIC STRENGTH
? SMALL FOOTPRINT
APPLICATIONS
? POWER SEMICONDUCTOR BALANCING
? MOTOR CONTROL
SPECIFICATIONS
Material
Resistor Element: THICK FILM ON
ALUMINA SUBSTRATE
Electrical
Power Rating: 1000W OR 2000W
AT 85°C MOUNTING PLATE
Resistance Values:
0.5 Ω TO 1000 Ω
Resistance Tolerance: +10% STD.
Max Operating Voltage:
2000VDC
Temperature Coefficient:
± 250 PPM/°C
Dielectric Strength: 6KV STANDARD
Operating Temperature Range:
-55°C TO 85°C
Case
Terminal Screws: #10-32
Max Contacts Torque: 10 IN-LB
(same dimensions)
0.188"
(4.76mm)
0.300"
(7.62mm)
0.450"
(11.43mm)
0.798"
(20.26mm)
? INRUSH CURRENT LIMITING
DERATING CURVE
100
80
60
40
Mounting Screws: #8-32
Max Mounting Torque: 15 IN-LB
Creepage Distance:
50MM ± 1MM (MIN)
20
Test
P E R F O R M A N C E D ATA
Rating
Continuous
Pulse
0
0
25 50 85 100 125 150
Bottom of base plate Temperature, ° C
Rated Power, max. current and (TA1K0) 1000W
heat sink plate temperature limited (TA2K0) 2000W
Operating Voltage √ P*R N/A
Max. Applied Voltage, ohms law limited 223V 2000VDC
Max. Current 10A 53.33A
Critical Resistance; below this resistance max power (TA1K0) 10 Ω
has to be de-rated due to exceeding max current (TA2K0) 20 Ω
Test Method Maximum ? R
Short Time Overload 1.14 x √ P*R / 10 sec @ 70°C Max % ? R sto = ±(2% + 0.05 Ω )
Moisture Resistance (TA1K0) 1000 hrs @ 40°C, 90-95% RH ≤ 1%
(TA2K0) 1750 hrs @ 40°C, 90-95% RH ≤ 1%
Thermal Shock MIL-STD-202, Method 107 MIL-STD-202, Method 107
Vibration, elec. MIL-STD-202, Method 201 ±2% Resistance
Vibration, mech. MIL-STD-202, Method 201 No Loose Terminal Screws
Load Life (TA1K0) 1000 Hrs 90 min ON / 30 min OFF ≤ 1%
(TA2K0) 1750 Hrs 90 min ON / 30 min OFF ≤ 1%
Pulse Tolerance 52μF @ 2KV / 60 sec intervals, 104J ≤ 1%
20,000 Pulses
Dielectric Strength 6KVDC for 1 minute ≤ 1%
O R D E R I N G I N F O R M AT I O N
APPLICATION NOTES
PROPER HEAT SINKING TECHNIQUES ARE ESSENTIAL TO PERFORMANCE OF A TAP
RESISTOR. PLEASED FOLLOW THESE GUIDELINES WHEN DESIGNING TAP SYSTEM:
? HEATS SINK PLATE (BASE PLATE OF THE RESISTOR) TEMPERATURE MUST BE
MONITORED TO ESTABLISH PROPER DE-RATING. BEST TECHNIQUE IS TO ATTACH A
THERMOCOUPLE TO THE SIDE OF THE BASE PLATE OF THE RESISTOR. TEMPERATURE
OF PLASTIC HOUSING OR HEAT SINK CANNOT BE USED TO ESTABLISH RATING OF THE
RESISTOR. USAGE OF LASER THERMOMETERS SHOULD BE AVOIDED.
? TO OBTAIN A POWER RATING OF 1000W OR 2000W, THE BOTTOM CASE TEMP
MUST NOT EXCEED 85°C. THIS CAN ONLY BE ACHIEVED IF THE THERMAL CON-
DUCTION TO THE HEATSINK R TH -CS<0.025°K/W. THIS VALUE CAN BE REACHED
BY USING THERMAL TRANSFER COMPOUND WITH A HEAT CONDUCTIVITY OF 1W/MK.
THE FLATNESS OF THE COOLING PLATE MUST BE BETTER THAN 0.05MM OVERALL.
THE ROUGHNESS OF THE SURFACE SHOULD NOT EXCEED 6.4μM.
? DUE TO VERY HIGH POWER DENSITY, ONLY LIQUID COOLED HEAT SINKS ARE REC-
OMMENDED FOR APPLICATIONS WHEN >300W POWER RATING IS DESIRED.
? PROPERLY DESIGNED HEAT SINK SHOULD HAVE MORE THAN 2 COOLING PIPES
UNDER THE SURFACE OF THE TAP RESISTOR. THE HYDROBLOK, A 4 PASS ALUMI-
NUM HEAT SINK (HTTP://WWW.OHMITE.COM/TA1K0-SINK.HTML) IS AN EXAMPLE
OF PROPERLY DESIGNED HEAT SINK.
S TA N D A R D PA RT N U M B E R S F O R TA P S E R I E S
RoHS Compliant
TA 1 K 0 P H 2 R 5 0 K E
Style Wattage Package Resistance Tolerance
Type 2.5 ? = 2R50 K = 10% (STANDARD)
50 ? = 50R0 L = 20%
Check product availability at www.ohmite.com
Ohms
0.5
1
2.5
5
7.5
10
15
25
50
100
250
500
750
1000
1000 Watt
10% Tolerance
TA1K0PHR500KE
TA1K0PH1R00KE
TA1K0PH2R50KE
TA1K0PH5R00KE
TA1K0PH7R50KE
TA1K0PH10R0KE
TA1K0PH15R0KE
TA1K0PH25R0KE
TA1K0PH50R0KE
TA1K0PH100RKE
TA1K0PH250RKE
TA1K0PH500RKE
TA1K0PH750RKE
TA1K0PH1K00KE
Ohms
0.5
1
2.5
5
7.5
10
15
25
50
100
250
500
750
1000
2000 Watt
10% Tolerance
TA2K0PHR500KE
TA2K0PH1R00KE
TA2K0PH2R50KE
TA2K0PH5R00KE
TA2K0PH7R50KE
TA2K0PH10R0KE
TA2K0PH15R0KE
TA2K0PH25R0KE
TA2K0PH50R0KE
TA2K0PH100RKE
TA2K0PH250RKE
TA2K0PH500RKE
TA2K0PH750RKE
TA2K0PH1K00KE
Ohmite Mfg. Co.
1-866-9-OHMITE ? INT’L 1-847-258-0300 ? FAX 1-847-574-7522 ? WWW.OHMITE.COM ? INFO@OHMITE.COM
51
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