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51974 PDF даташит

Спецификация 51974 изготовлена ​​​​«Micropac Industries» и имеет функцию, называемую «True Hermetically Sealed Proportionally Controlled Heater Hybrids».

Детали детали

Номер произв 51974
Описание True Hermetically Sealed Proportionally Controlled Heater Hybrids
Производители Micropac Industries
логотип Micropac Industries логотип 

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51974 Даташит, Описание, Даташиты
True Hermetically Sealed
Proportionally Controlled Heater Hybrids
Mii
HYBRID MICROELECTRONICS
PRODUCTS DIVISION
Features:
Self-contained
Programmable via a single external resistor
Available from 40 to 50 watts
Applications:
Microwave Oscillators
Telecommunications
Other areas where temperature control is needed
DESCRIPTION
A self-contained hybrid circuit heater that is programmable via a single external resistor. These systems are ideal for
microwave oscillators, telecommunications and other areas where temperature control is needed. Heaters are available
from 40 to 50 watts.
Typical Electrical Characteristics for DC Heater (28V DC Input, 28 Watts (51974))
Operating Voltage Range (See Note 13) …………………………………………………………………………………… 28 ±1 VC
Voltage Limits ……………………………………………………………………………………………… 24 VDC Min, 32 VDC Max
Reverse Voltage Protection …………………………………………………………………………………………….………. To 50 V
Operating Current Range ……………………………………………………………………………….…………....…. .015 to 1.00 A
Turn on Current …………………………………………………………………………………………………..…………… To 1.00 A
Quiescent Current ………………………………………………………………………………………..…………… Less than .019 A
Typical Electrical Characteristics for AC Heaters (115 VAC Input, 28 Watts (52034))
Operating Voltage Range …………………………………………………………………….………. 100 to 125 VAC, 50 to 400 Hz
Voltage Limits ……………………………………………………………………………………………………...……… 0 to 150 VAC
Operating Current, Steady State ……………………………………………………………………………………..… .001 to .280 A
Turn-on Current Range (at 115 VAC) ………………………………………………………………………………………. To .280 A
Quiescent Current ……………………………………………………………………………………………………… Less than 1 mA
Temperature Characteristics
Control Range (See Note 1, 2 & 3) …………………………………………………………………………………. +50°C to +100°C
Variation with Load (See Note 4) ………………………………………………………………………………………...….. 10°C Max
Variation over Operating Range (See Note 5) …………………………………………………………………………………… ±2°C
Maximum Control Temperature (See Note 6) ………………………………………………………………………………… +120°C
Environmental Characteristics
Operating Temperature …………………………………………………………………………………………….… -55°C to +100°C
Altitude ………………………………………………………………………………………………………………...….. 70,000 ft. Max
Shock ……………………………………………………………………………………………………………………….…. 20 G Max
Vibration …………………………………………………………………………………………………………. 50 G at 2,000 Hz Max
Humidity ……………………………………………………………………………………………………………..... Greater than 95%
Micropac Industries cannot assume any responsibility for any circuits shown or represent that they are free from patent infringement.
Micropac reserves the right to make changes at any time in order to improve design and to supply the best product possible.
MICROPAC INDUSTRIES, INC. HYBRID MICROELECTRONICS PRODUCTS DIVISION 905 E. Walnut St., Garland, TX 75040 (972) 272-3571 Fax (972) 494-2281
www.micropac.com E-MAIL: [email protected] 12/13/01
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51974 Даташит, Описание, Даташиты
Reliability
True Hermetically Sealed
Proportionally Controlled Heater Hybrids
Each hybrid circuit is subjected to the following reliability screening per MIL-PRF-38534
Precap internal visual Method 2017, Condition B
Temperature cycling, Method 1010, Condition B
Constant acceleration, Method 2001, Condition B, Y axis only
Optional Burn-in per Mii specifications
Fine and Gross leak test, Method 1014, Conditions A & C
External visual, Method 2009
Notes
1. DC Heaters (Small Substrate) Use Table 1 for control resistor, and Figure 1 for dimensions.
2. DC Heaters (Large Substrate) Use Table 2 for control resistor, and Figure 3 for dimensions.
3. AC Heaters (Large Substrate) Use Table 2 for control resistor, and Figure 3 for dimensions.
4. Maximum temperature variation for current change from 5% over quiescent to 95% of turn-on current.
5. Maximum temperature variation over operating voltage range when ambient temperature is constant and the supply
current is between 5% over quiescent and 95% of turn-on current.
6. Maximum temperature with any value of control resistor, including 0 ohms.
7. All True hermetically sealed (solder welded) heater modules are leak tested to meet MIL-PRF-38534, Method 1014,
Test Conditions A & C, with a maximum lead rate of 1 X 10-7 atm-cc/sec, and all hermetically sealed (epoxy) heaters
have a maximum leak rate of 1 X 10-6 atm-cc/sec.
8. Optimum heat transfer is obtained by using a thermal joint compound such as Dow Corning 340 on the mounting
surface.
9. Operation is possible over +100°C, but electrical performance is not guaranteed. Input current decays to 20mA max
at +120°C without damage to the heater module.
10. All Mii DC heaters are protected against reverse voltage up to 50 V.
11. The standard ceramic heater design has pins for interconnect. The standard Micropac part number with or without
the A suffix will have pins & Micropac can supply the heater without pins and with pad metalization designed for wire
bonding. The version without pins will have a B suffix to the standard Micropac part number.
12. Maximum power rating for control resistor is 1/8 watts. Precise resistor values should be determined by measuring
the surface temperature.
13. The heater is operational from 24 to 32 VDC, however for optimum performance 28 VDC is recommended.
Micropac Industries cannot assume any responsibility for any circuits shown or represent that they are free from patent infringement.
Micropac reserves the right to make changes at any time in order to improve design and to supply the best product possible.
MICROPAC INDUSTRIES, INC. HYBRID MICROELECTRONICS PRODUCTS DIVISION 905 E. Walnut St., Garland, TX 75040 (972) 272-3571 Fax (972) 494-2281
www.micropac.com E-MAIL: [email protected] 12/13/01
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51974 Даташит, Описание, Даташиты
D.C. True Hermetic Seal
D. C. Hermetic Seal
D. C. Hermetic Seal
(Large Substrate)
D. C. True Hermetic Seal
(Large Substrate)
A. C. Hermetic Seal
A. C. True Hermetic Seal
51974
52005
52027
52086
52087
52088
51933
51948
51949
51951
51952
51960
51961
51966
51969
51970
51971
51985
52012
52013
52029
52041
52066
52048
52055
52056
52070
52031
52057
52034
Pin No.
1
2
3
4
Function
+ Voltage
- Voltage (Return Voltage)
Control
Control
True Hermetically Sealed
Proportionally Controlled Heater Hybrids
28V / 28W
20.5V / 15W
28V / 40W
18V / 15W
28V / 15W
32V / 30W
28V / 28W
20V / 4W
28V / 21W
20V / 20W
28V / 40W
15V / 20W
24V / 8W
30V / 6W
15V / 4W
15V / 7.5W
15V / 20W
20.5V / 15W
40V / 40W
28V / 11W
15V / 15W
15V / 28W
28V / 15W
20V / 40W
28V / 50W
28V /50W
28V / 40W
115V / 28W
115V / 40W
115V / 28W
Micropac Industries cannot assume any responsibility for any circuits shown or represent that they are free from patent infringement.
Micropac reserves the right to make changes at any time in order to improve design and to supply the best product possible.
MICROPAC INDUSTRIES, INC. HYBRID MICROELECTRONICS PRODUCTS DIVISION 905 E. Walnut St., Garland, TX 75040 (972) 272-3571 Fax (972) 494-2281
www.micropac.com E-MAIL: [email protected] 12/13/01
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Номер в каталогеОписаниеПроизводители
51974True Hermetically Sealed Proportionally Controlled Heater HybridsMicropac Industries
Micropac Industries

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