MIL-PRF-1/272F
TABLE I. Testing and inspection - Continued.
Limits
Method
Types
Notes
Conditions
Symbol
Inspection
Unit
MIL-STD-1311
Min
Max
Conformance inspection,
part 2
Heater current
1301
P1, P11
---
If
540
660
mA
µA dc
Electrode current
5201
P1, P11
---
Ec1 = 0
Ib1
-15
10
(anode No. 1)
µA dc
Electrode current
5201
P1
---
Light = 4.0 ftL
Ik
---
1,000
µA dc
(cathode)
P11
---
Light = 2.25 ftL
Ik
---
1,000
Base alignment
5101
P1, P11
---
3D4; pin No. 1
---
---
---
---
(electrostatic types)
Angle between traces
5101
P1, P11
---
Angle
87
93
Degrees
Neck and base alignment
5101
P1, P11
---
---
---
---
---
(electrostatic types)
Stray light emission
5216
P1, P11
---
---
---
---
---
Line width "A"
5226
P1
3
Light = 4.0 ftL
Width
---
0.45
mm
(electrostatic types)
P11
---
Light = 2.25 ftL
Width
---
0.45
mm
Line width "B"
5226
P1
4
Light = 4.0 ftL
Width
---
0.45
mm
(electrostatic
P11
4
Light = 2.25 ftL
Width
---
0.45
mm
deflection)
Focusing voltage
---
P1
---
Light = 4.0 ftL
Eb1
150
280
V dc
P11
---
Light = 2.25 ftL
Eb1
150
280
V dc
Deflection factor (1D2)
5248
P1,P11
---
DF
115
155
V dc/in.
Base pin solder depth
1111
P1, P11
---
---
---
---
---
Deflection factor (3D4)
5248
P1, P11
---
DF
74
100
V dc/in.
Heater-cathode leakage
5251
P1, P11
---
---
---
---
---
current
Grid No. 1 leakage
5251
P1, P11
---
---
---
---
---
current
Anode No. 2 leakage
5251
P1, P11
---
---
---
---
---
current
Secureness of base, cap,
1101
P1, P11
---
---
---
---
---
or insert
Permanence of marking
1105
P1, P11
---
---
---
---
---
See notes at end of Table I.
3
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