nc.
20 STERN AVE.
SPRINGFIELD, NEW JERSEY 07081
U.S.A.
TELEPHONE: (201) 376-2922
(212)227-6005
FAX: (201) 376-8960
SILICON PNPN
PASSIVATED PLANAR
r
CONTROLLED
SWITCH
2N3O27
2N3O28
2N3O29
3O27-1
3O28-1
3O29-1
.-A-3T
SWITCHING
TYPES
.VHLiiTA^Y - AEROSPACE
These are passivated planar PNPN controlled
switches, available in both TO-18 and TO-46 standard
packages, intended for use in military and space
applications requiring a high degree of reliability.
They offer a unique combination of extremely fast
switching, high pulse power, small size, intrinsic
parameter stability, and improved radiation tolerance.
The fast switching characteristics of these types make
them particularly useful for ring counters; high cur-
rent pulse generation and gating; as well as safety
arming and detonating circuits; programming circuits;
protective and warning circuits; driving relays; driv-
ing indicator lamps, encoding and decoding circuits;
replacing relays, thyratrons, and megamps; servo
motor control; pulse generation; plus many others.
The high surge -current rating (5 amps — 50 ms)
makes this series useful for squib firing. SSPI Bulletin
D420:02 covers many CS applications in detail.
TO-18
Q-46
3027-1
3028-1
3029-1
FEATURES
Available in TO-18 or TO-46
Fully characterized for "worst-case" design
Passivated planar construction for maxi-
mum reliability and parameter uniformity
— All junctions completely passivated
Low saturation voltage and fast switching
at high current levels
5 to 500 mA operating DC current range
0.15 /AS typical turn on time
0.7 ju,S typical recovery time
Pulse currents to 30 amps
Voltage ratings to 100V
0.2 mA max. trigger current
0.8V max. trigger Voltage
RATINGS
ABSOLUTE IV1AXIMUM
Type
Anode Voltage |
(DC or Peak AC) j
±Volts
(Note 1) I
Continuous D.C, Forward Current,
75°C Ambient
100"C Case
Surge current, 0.05 seconds
Peak Gate current
Average Gate current
Reverse Gate voltage
Reverse Gate current
Storage temperature range
Operating temperature range
250 mA |
Nntp;
500 mA
\k recurrent Forward
5 amps
250 mA
25 mA
5 volts
3 mA
—65 to +200°C
-65 to - 150°C
2N3027, •3027-1-
2N3028, ^3029-1
2N3029, 3028-1
! 30
. 60
100
Note 1
Note 2
Blockm voltage ratings apply over the operating temperature range, provided the gate is connected to the cathode through an
llockmg
ppropnate resistor, or adequate gate bias is used. (See section on bias stabilization.)
.rnDient current ratings shown apolv to TO-18 units. Ambient current ratines foV TO-4fi unit* an- fin
0
/,,
r,f
TO.1B ratin«
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