MIL-PRF-1/588B
TABLE I. Testing and Inspection -Continued.
Inspection
Method
Notes
Conditions
Symbol
Limits
Limits
Units
Min
Max
Conformance
inspection, part 2
Heater current
If
1301
540
---
660
mA
Electrode current
Ec1 = 0
Ib1
5201
-50
---
10
A dc
(anode 1)
Electrode current
Light = 2 fL
Ik
5201
---
---
1,000
A dc
(cathode)
Base alignment
---
+ 3D4, pin No. 1
5101
---
---
---
---
(electrostatic types)
Angle between traces
Angle
5101
86
---
94
Degrees
Neck and base alignment
---
5101
---
---
---
---
(electrostatic types)
Stray light emission
---
5216
---
---
---
---
(conventional types)
Light = 2 fL
Line width "A"
Width
5226
---
2/
0.45
mm
(electrostatic deflection)
3/
Light = 2 fL
Line width "B"
Width
5226
---
0.55
mm
(electrostatic deflection)
---
Focusing voltage at cutoff
Eb1
5246
200
300
V dc
---
Focusing voltage (zero-
Eb1
5246
140
300
V dc
bias)
---
1D2
Deflection factor
DF
5248
195
265
V dc/in.
---
3D4
Deflection factor
DF
5248
167
225
V dc/in.
---
Heater-cathode
---
5251
---
---
---
leakage current
---
Secureness of base, cap
---
1101
---
---
---
or insert
---
Base pin solder depth
---
1111
---
---
---
---
Permanence of marking
---
1105
---
---
---
Conformance
inspection, part 3
Life test
---
---
Group B; Light = 2 fL;
---
---
---
---
Eb2 = 1,100 V dc;
t = 500 hours
Life-test end points:
Line width "A"
5226
---
Light = 2 fL
---
Width
0.50
mm
Line width "B"
5226
---
Light = 2 fL
Width
---
0.65
mm
Modulation
5223
---
Light = 2 fL
---
50.0
V dc
Ec
3
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