Document
2N2221A, L, UA, UB & 2N2222A, L, UA, UB
Radiation Hardened NPN Silicon Switching Transistors
Rev. V1
Features
Qualified to MIL-PRF-19500/255 Levels
JANSM-3K Rads (Si) JAN JANSD-10K Rads (Si) JANTX JANSP-30K Rads (Si) JANTXV JANSL-50K Rads (Si) JAN JANSR-100K Rads (Si)
TO-18 (TO-206AA), Surface mount UA & UB Packages
Applications
Switching and Linear Applications DC and VHF Amplifier Applications
Electrical Specifications @ TA = 25°C
Parameter
Test Conditions
Symbol Units Minimum Maximum
Off Characteristics:
Collector - Emitter Breakdown
IC = 10 mAdc
V(BR)CEO Vdc
50
—
Collector - Base Cutoff Current Emitter - Base Cutoff Current
VCB = 75 Vdc VCB = 60 Vdc VEB = 6.0 Vdc VEB = 4.0 Vdc
ICBO1 ICBO2 IEBO1 IEBO2
µAdc nAdc
µAdc nAdc
— —
10 10
10 10
Collector - Emitter Cutoff Current
VCE = 50 Vdc
ICES nAdc
—
50
On Characteristics1:
Forward Current Transfer Ratio Collector - Base Cutoff Current
2N2221A, L, UA, UB IC = 0.1 mAdc, VCE = 10 V.