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參數(shù)資料
| 型號： | CAF-250 |
| 元件分類： | 電源模塊 |
| 英文描述： | 3-OUTPUT 250 W AC-DC REG PWR SUPPLY MODULE |
| 文件頁數(shù)： | 3/4頁 |
| 文件大?。?/td> | 67K |
| 代理商： | CAF-250 |
ELECTRONICS LIMITED
Undervoltage Lockout
Remote Shutdown
Hold Up
EMI
Operating Temperature
Storage Temperature
Cooling
Humidity
Construction
Weight and dimensions
Vibration
Acceleration
Shock
Salt Mist
Explosion Proofness
Nuclear Hardening
Maintainability
MTBF
Shelf Life
Burn In
To protect internal circuits against low input voltages, the converters will not operate below an
input of 13V dc.
Connecting the shutdown terminal to a voltage of (
±0.4V) with respect to the output return
terminal, will cause the unit to shutdown. Leaving the terminal open circuit or connecting it to
a logic high signal (3V to 5.5V) will allow the unit to operate.
Model pins are provided which permit the connection of an external hold-up capacitor.
The units are designed to meet the following requirements of MIL-STD-461C, Part 2, category
A1b :
CEO1
CE03
CE07,
CS01
CS02
CS06,
RE02
RS02
RS03
Full specified performance with the baseplate temperature maintained within the range -55C
to +100C.
-55C to +125C
Conduction cooling via baseplate.
MIL-STD-810C, Method 507.3, 95% at 25C. BS3G100, Part 2, Section 3, Sub-section 3.2,
Para 6.2.
Fully enclosed construction utilising Aluminium Alloy LM25M to BS1490. Paint finish Matt
Black to DTD 5555A. Mounting surface Alochromate finish.
The maximum weight is 1200 grams. Refer to outline drawing for unit dimensions and fixing
positions.
MIL-STD-810E, Method 514.4 Category 5. BS3G100, Part 2, Section 3, Sub-Section 3.1,
tests 4.3, 4.4.2 and 4.4.4.
MIL-STD-810E, Method 513.4 Procedure 11. BS3G100, Part 2, Section 3, Sub-Section 3.6.
MIL-STD-810E, Method 516.4 Procedure V. DEF-STAN-07-55 Part 2, Section 1.1, Test A2
(100g, 6ms, 3 shocks per axis).
BS3G100, Part 2, Section 3, Sub-Section 3.8.
BS3G100, Part 2, Section 3, Sub-Section 3.5.
The circuitry of all Powermite converters is designed to limit the effects of nuclear radiation.
Units are constructed in a non-hermetically sealed two part housing. Internal circuitry is
protected by means of conformal coating. All Powermite modules are repairable.
The MTBF for any unit in the Powermite range, calculated in accordance with MIL-HDBK-217,
can be provide upon request. HI-REL versions with active components screened to JANTX, MIL-
STD-883 or similar are available.
The shelf life of the units is ten years, they may be left in deep store, without the need for
intermittent powering-up or any form of servicing for the period of the shelf life.
All units are subjected to an environmental stress screening programme. For standard versions
this consists of a 48 hour bake at 85C baseplate temperature. High reliability versions are
subjected to 10 minutes of random vibration followed by 48 hours of power and temperature
cycling between -55C and +85C, with full load applied.
250 WATT SINGLE AND MULTI OUTPUT AC/DC CONVERTERS
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