MIL-PRF-19500/270J
* 4.3 Screening (JANS, JANTX, and JANTXV levels only). Screening shall be in accordance with table IV of
MIL-PRF-19500 and as specified herein. The following measurements shall be made in accordance with table I
herein. Devices that exceed the limits of table I herein shall not be acceptable.
Screen (see
Measurement
table IV of
MIL-PRF-19500)
JANS level
JANTX and JANTXV levels
3c
Thermal impedance (see 4.3.2)
Thermal impedance (see 4.3.2)
7
Optional
Optional
9
Not applicable
hFE 2-1 , and h
ICBO2,
FE3
hFE 2-2
10
48 hours minimum
48 hours minimum
11
hFE 2-1 , and h
ICBO2 and hFE3
ICBO2,
FE3
hFE 2-2
ĆICBO2 = 100 percent of initial value or
2 nA dc, whichever is greater.
ĆhFE3 = ± 15 percent
12
See 4.3.1
See 4.3.1
240 hours minimum
80 hours minimum
13
Subgroups 2 and 3 of table I herein;
Subgroup 2 of table I herein;
ĆICBO2 = 100 percent of initial value or
ĆICBO2 = 100 percent of initial value or
2 nA dc, whichever is greater.
2 nA dc, whichever is greater.
ĆhFE3 = ±15 percent
ĆhFE3 = ±15 percent
13(a)
Method 1016 of MIL-STD-750, test condition A
Not applicable
(collector to collector)
9
RC1-C2 = 10 ohms minimum.
14
Required
Required
4.3.1 Power burn-in conditions. Power burn-in conditions are as follows:
a. JANS level (all device types) ...... VCB = 10 - 40 V dc, PT = 300 mW (each section) at TA = +25°C ± 3°C.
VCB = 10 - 40 V dc, PT = 600 mW (both sections) at TA = +25°C ± 3°C.
b. JANTX and JANTXV levels
(all device types)........................ VCB = 10 - 40 V dc, PT = 300 mW (each section) at TA = +25°C ± 3°C.
VCB = 10 - 40 V dc, PT = 600 mW (both sections) at TA = +25°C ± 3°C.
NOTE: No heat sink or forced air-cooling on the devices shall be permitted.
6
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