MIL-PRF-19500-548 Coupler, Opto Electronic, Semiconductor Device, Solid State, Types 4N47, 4N48, 4N49, 4N47A, 4N48A, 4N49A, 4N47U, 4N48U, 4N49U, 4N47Bu, 4N48Bu, And 4N49Bu, Jan, Jantx, Jantxv, And JansThis specification covers the performance requirements for solid state optically coupled isolators in which a gallium aluminum arsenide diode light source is optically coupled to a silicon NPN phototransistor. Four levels of product assurance are provided for each type as specified in MIL-PRF-19500.

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MIL-PRF-19500/548H

TABLE II. Group E inspections (all quality levels) for qualification only.

MIL-STD-750

Quality conformance

Inspections

inspection sample size.

Method

Conditions

Subgroup 1

45 devices, c = 0

Temperature cycling

1051

Test condition B, 500 cycles

Hermetic seal

1071

Fine leak

Gross leak

Electrical measurements

Table I, subgroup II

Subgroup 2

45 devices, c = 0

For all devices with organic

High temperature

1039

reverse bias

material.

Electrical measurements

Table I, subgroup II

NOTES:

1. The input waveform is supplied by a generator with the following characteristics: ZOUT = 50 Ω, tr ≤ 15 ns,

duty cycle = 1 percent; tw = 100 �s.

2. The output waveform is monitored on an oscilloscope with the following characteristics: tr ≤ 12 ns,

Rin = 1 MΩ, Cin = 20 pF.

3. Adjust amplitude of input for: IF = 5mA dc.

FIGURE 3. Switching times.