STMICROELECTRONICS SD1487

SD1487
RF & MICROWAVE TRANSISTORS
HF SSB APPLICATIONS
..
..
..
30 MHz
12.5 VOLTS
IMD −30 dB
COMMON EMITTER
GOLD METALLIZATION
P OUT = 100 W MIN. WITH 12.0 dB GAIN
.500 4LFL (M174)
epoxy sealed
ORDER CODE
SD1487
BRANDING
SD1487
PIN CONNECTION
DESCRIPTION
The SD1487 is a 12.5 V Class C epitaxial silicon
NPN planar transistor designed primarily for HF
communications. This device utilizes state-of-theart diffused emitter ballasting to achieve extreme
ruggedness under severe operating conditions.
1. Collector
2. Emitter
3. Base
4. Emitter
ABSOLUTE MAXIMUM RATINGS (T case = 25 ° C)
Symbol
Parameter
Value
Unit
VCBO
Collector-Base Voltage
36
V
VCEO
Collector-Emitter Voltage
18
V
VEBO
Emitter-Base Voltage
4.0
V
Device Current
20
A
Power Dissipation
290
W
TJ
Junction Temperature
+200
°C
T STG
Storage Temperature
− 65 to +150
°C
0.6
°C/W
IC
PDISS
THERMAL DATA
RTH(j-c)
November 1992
Junction-Case Thermal Resistance
1/5
SD1487
ELECTRICAL SPECIFICATIONS (T case = 25 ° C)
STATIC
Symbol
Value
Test Conditions
Min.
Typ.
Max.
Unit
BVCBO
IC = 100mA
IE = 0mA
36
—
—
V
BVCES
IC = 100mA
VBE = 0V
36
—
—
V
BVCEO
IC = 100mA
IB = 0mA
18
—
—
V
BVEBO
IE = 20mA
IC = 0mA
4.0
—
—
V
ICES
VCE = 15V
IE = 0mA
—
—
20
mA
hFE
VCE = 5V
IC = 5A
10
—
200
—
DYNAMIC
Symbol
Value
Test Conditions
Min.
Typ.
Max.
POUT
f = 30 MHz
VCE = 12.5 V
ICQ = 150mA
100
—
—
W
GP
f = 30 MHz
VCE = 12.5 V
ICQ = 150mA
11
13
—
dB
POUT = 100WPEP VCE = 12.5 V
ICQ = 150mA
—
—
−30
dBc
—
400
—
pF
IMD3*
f = 1 MHz
COB
*Note:
f
=
VCB = 12.5 V
30 + 30.001MHz
TYPICAL PERFORMANCE
POWER GAIN & COLLECTOR
EFFICIENCY vs POWER INPUT
2/5
Unit
IMD vs POWER OUTPUT, PEP
SD1487
TYPICAL PERFORMANCE (cont’d)
POWER OUTPUT vs POWER INPUT
IMPEDANCE DATA
FREQ.
30 MHz
ZIN (Ω)
Z CL (Ω)
0.57 + j 0.78 0.80 + j 0.43
POUT = 100 W PEP
VCE = 12.5 V
3/5
SD1487
TEST CIRCUIT
4/5
C1
C2
C3
C4, C6
C7
C5, C8
C9
C10
:
:
:
:
:
:
:
:
9 - 180pF Arco 463
5 - 380pF Arco 465
200pF Arco 465
170pF Arco 469
0.1µF Ceramic Disc
1000pF Unelco
10µF Electrolytic, 35Vdc
1000µF Electrolytic, 35Vdc
L1
L2
: 2 1/2 Turns, #14 AWG, I.D. Loose Wound
: 16 Turns, #16 AWG, Enameled Wire on
Micrometals Torroid #T-94
L3
L4
L5
: Copper Strap 1/4” Widht, Length 1 1/2,
Height 1/2”
: 4 Turns, #16 AWG, Enameled Wire 3/8” I.D.
: 5 Turns, #18 AWG on 1/4” I.D. Coil Form
Length 1/2”, Ferrite Slug
R1, R2,
R3
: 1.5 Ohm, 1 Watt Carbon
SD1487
PACKAGE MECHANICAL DATA
Ref.: Dwg. No.12-0174
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsability for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may results from its use. No
license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned
in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronics products are not authorized for use ascritical components in life support devices or systems without express
written approval of SGS-THOMSON Microelectonics.
 1994 SGS-THOMSON Microelectronics - All Rights Reserved
SGS-THOMSON Microelectronics GROUP OF COMPANIES
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