MIL-PRF-62528B(AT)
3.5.1 Polarity. The regulator shall be designed to operate with a negative-grounded,
electrical system, and shall be internally case grounded (see 4.5.4.1).
3.5.2 Electromagnetic interference suppression. Electromagnetic interference generated
within the regulator shall be suppressed within the regulator housing (see 4.5.4.1).
3.5.3 Configuration. The regulator fabricated in accordance with this specification shall
have external dimensions that fall within the envelope outline of Drawing 12333040. Electrical
connectors and mounting dimensions shall also conform to the detail requirements of this
drawing. Contact designation shall be in accordance with figure 1 (see 4.5.4.2).
3.6 Construction and hardware.
3.6.1 Dissimilar metals. Except where necessary to complete an electrical circuit,
contact between dissimilar metals which would encourage galvanic action shall be avoided.
Separation of dissimilar metals shall be accomplished by providing insulation between mating
surfaces (see 4.5.4.1).
3.6.2 Standard parts. Military standard parts shall be used wherever possible
(see 4.5.4.1).
3.7 Reliability. Quantitative reliability numbers are to be determined by Government
reliability engineers prior to finalizing the contract (see 6.2).
3.8 Endurance. The temperature stabilized regulator (see 6.3.1) shall be capable of
withstanding the endurance load cycles specified herein for a total of 1100 hours. Subsequently,
the regulator shall meet the requirements of 3.3.7 and 3.9.1 through 3.9.6 (see 4.6.4.9).
3.9 Performance characteristics.
3.9.1 Reverse current. The reverse current shall not exceed 30 millamperes (mA) when
measured between the regulator and the batteries (see 4.6.1.1.1).
3.9.2 Voltage regulation. When pin E of the battery connector is not connected to
ground, the regulator shall establish and maintain regulated voltage per figure 8 throughout the
generator speed range of 2350 to 8160 revolutions per minute (rpm) with load current from
battery only to 350 A. With pin E of the battery connector connected to ground, the regulator
shall establish and maintain regulated voltage per figure 8 throughout the generator speed range
of 3000 ±50 rpm with load current from battery only to 150 A. The fundamental frequency of
the voltage waveform shall be greater than 100 Hertz (Hz). The regulator shall re-establish and
maintain a regulated voltage within the time and voltage limits indicated on figure 2. Overshoot
and undershoot limits shall conform to limits on figure 2. For load currents above 350 A with
load increased to 400 A and with pin E of the battery terminal ungrounded, the regulated voltage
shall be equal to or less than that measured at 350 A. For loaded currents above 150 A with pin
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