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TA025 데이터시트(PDF) 1 Page - Ohmite Mfg. Co.

부품명 TA025
부품 상세설명  High Power Density
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제조업체  OHMITE [Ohmite Mfg. Co.]
홈페이지  http://www.ohmite.com
Logo OHMITE - Ohmite Mfg. Co.

TA025 데이터시트(HTML) 1 Page - Ohmite Mfg. Co.

  TA025 Datasheet HTML 1Page - Ohmite Mfg. Co. TA025 Datasheet HTML 2Page - Ohmite Mfg. Co.  
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1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
103
TA Series
Power Chip
Thick Film on Alumina Substrate
Series
Wattage
TA203
3.0
TA303
3.0
Substrate Alumina
Resistor Thick Film
Coating Glass
Terminals Solder Plated Phosphor Bronze
Temperature Coefficient 1 ohm:
450 ppm/°C
1 to 100Ω:
100 ppm/°C
101Ω and up: 50 ppm/°C
Tolerance ±1%, ±5% and ±10%
Power Rating Based on 25°C free air
Resistance Range 0.25 ohm to 10M ohm. Consult fac-
tory for other values
Maximum Operating Voltage 350 VAC, 500 VDC through glass,
1000 VAC, 1500 VDC through sub-
strate, not to exceed power rating
Overload Five times rated power, as long as the
one second average dissipation does
not exceed the wattage rating. ∆R:
±2%, 2000 hours
Derating 100% @ 25°C to 0% @ 180°C ambi-
ent.
Equivalent Parallel Capacitance 1.0pf (100 MHz)
Withstanding Voltage 5000V thru back side
Operating Temperature Range -55°C to +180°C
Overload Current 20 x rated current up to 8 ms (ΔR ±
0.5%)
Test
Test Condition
MILR83401
Specification
Life (Rated
Power)
40°C, rated power, 90
min ON 30 min OFF,
1000 hrs.
ΔR
±( 1.0% + 0.05Ω)
Life
(Moisture
Load)
60°C, 90 - 95% RH,
rated power, 90 min
ON 30 min OFF, 1000
hrs.
ΔR
±( 1.0% + 0.05Ω)
Temperature
Cycling
Room temp > -55°C
30 min > RT 10 min ±
120°C 30 min > RT10
min 5 cycles
ΔR
±( 0.25% + 0.05Ω)
Flammability UL94V-O rated (not recognized)
Soldering
Heat
350°C Solderpot, 3
secs.
ΔR
±( 0.25% + 0.05Ω)
Insulation
Resistance
DC 100V, 1 min
Over 1000M ohm
Ohmite’s original Power Chip resistors feature our
thick film on alumina substrate technology. These
planar packages yield space saving, 10W/in2 power
densities that require over 50% less board space
than other radial packages. Convection cooling is
maximized by the planar package configuration
which dissipates heat well above board level.
Ohmite’s power chip resistors have a 125% higher
operating temperature range than competitive prod-
uct of similar design. High temperature solder and
in-process plating keep terminations secure under
self-heating effects by preventing re-flow from full
power operation.
Flexible packaging schemes make these resistors
ideal for power supplies, audio amplifiers, video fly-
back, and other power control applications.
Fe A T ure S
• High-Temp Terminal Construction
• Wide Resistance Range
• Low Inductance (50nH-100nH)
• High Power Density
• Easy to install. PC-mountable
ch A r A c T eri ST ic S
S erie S SP eci F ic AT i ONS
Series
Wattage
TA205
5.0
TA305
5.0
TA605
5.0
TA805
5.0
Series
Wattage
TA207
7.5
TA307
7.5
Series
Wattage
TA310
10.0
TA810
10.0
Series
Wattage
TA025
25.0
TA050
50.0
TA100
100.0
(continued)


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