RF & MICROWAVE TRANSISTORS
HF SSB APPLICATIONS
FEATURES:
•
•
•
•
•
•
•
•
30 MHz
12.5 Volts
IMD –30 dB
Common Emitter
Gold Metallization
P
out
= 125W PEP Min. with 12 dB Gain
Improved Collector-Base Breakdown Voltage: 60 Volts Min.
Equivalent to the ST SD1487, with Enhanced Output Power
HF12-125
0.500” DIAMETER
SOE PACKAGE
DESCRIPTION:
The HF12-125 is a 12.5V epitaxial silicon NPN planar transistor designed primarily for HF
communications. This device utilizes emitter ballasting to achieve extreme ruggedness under severe
operating conditions. The HF12-series products utilize the unique Spectrum Devices’ Bipolar process
which offers a 67% improvement in collector-base breakdown voltage, enhancing reliability while
maintaining RF performance.
ABSOLUTE MAXIMUM RATINGS: (T
CASE
= 25
°
C)
Symbol
V
CBO
V
CEO
V
EBO
I
C
P
DISS
T
J
T
STG
Parameter
Collector-Base Voltage
Collector-Emitter Voltage
Emitter-Base Voltage
Device Current
Total Dissipation
Junction Temperature
Storage Temperature
Value
60
18
4.0
20
290
+200
-65 to +150
Unit
V
V
V
A
W
°
C
°
C
THERMAL DATA:
R
TH(J-C)
Thermal Resistance Junction-case
0.6
°
C/W
ELECTRICAL SPECIFICATIONS (T
CASE
= 25
°
C)
DC CHARACTERISTICS
Symbol
BV
CBO
BV
CES
BV
CEO
BV
EBO
I
CES
h
FE
Test Conditions
I
C
= 100 mA
I
C
= 100 mA
I
C
= 100 mA
I
E
= 20 mA
V
CE
= 15 V
V
CE
= 5 V
I
E
= 0 mA
V
BE
= 0 V
I
B
= 0 mA
I
C
= 0 mA
I
E
= 0 mA
I
C
= 5 A
Value
Typ.
--
--
--
--
--
--
Unit
V
V
V
V
mA
--
Min.
60
60
18
4.0
--
10
Max.
--
--
--
--
20
200
RF CHARACTERISTICS
Symbol
P
OUT
G
P
IMD*
η
C
C
OB
f = 30 MHz
P
out
=125 W PEP
P
out
=125 W PEP
P
out
=125 W PEP
f = 1 MHz
Test Conditions
V
CC
= 12.5 V
V
CC
= 12.5 V
V
CC
= 12.5 V
V
CC
= 12.5 V
V
CB
= 12.5 V
I
CQ
=150 mA
I
CQ
=150 mA
I
CQ
=150 mA
I
CQ
=150 mA
Value
Min.
125
12
--
40
--
Typ.
--
--
--
--
400
Max.
--
--
-30
--
--
Unit
W
dB
dBc
%
pF
*Condition
s
f1 = 30.00MHz
f2 = 30.001MHz
TYPICAL PERFORMANCE
Power In vs. Power Out
Frequency = 30 MHz, Vcc = 12.5 Volts
140.00
HF12-125
120.00
100.00
SD1487
Power Out (W)
80.00
60.00
40.00
20.00
0.00
0.00
1.00
2.00
3.00
4.00
Power In (W)
5.00
6.00
7.00
8.00
Efficiency vs Power Out
Frequency = 30 MHz, Vcc = 12.5 Volts
80.0%
70.0%
HF12-125
60.0%
Effificency (%)
50.0%
40.0%
30.0%
20.0%
10.0%
0.0%
0.00
SD1487
20.00
40.00
60.00
80.00
100.00
120.00
140.00
Power Out (W)
PACKAGE MECHANICAL DATA
SOE - 500
A
FULL R
4
.112 X 45°
Ø.125 NOM.
1
C
B
Pin 1. Collector
2. Emitter
3. Base
4. Emitter
3
E
D
F
G
H
2
I
J
K
A
B
C
D
E
F
Minimum
Inches/MM
.220/5.59
.125/3.18
.245/6.22
.720/18.28
.125/3.18
.970/24.64
Maximum
Inches/MM
.230/5.84
.255/6.48
.730/18.54
.980/24.89
G
H
I
J
K
L
Minimum
Inches/MM
.495/12.57
.003/0.08
.090/2.29
.160/4.06
Maximum
Inches/MM
.505/12.83
.007/0.18
.110/2.79
.175/4.45
.280/7.11
1.050/26.67
DISCLAIMER
Spectrum Devices Corporation reserves the right to change, without notice, the specifications and
information contained herein. Spectrum Devices Corporation believes the information contained within this
data sheet to be accurate and reliable. However, no responsibility is assumed by Spectrum Devices
Corporation for its use or for any infringement of patents or other rights of third parties which may result
from its use. No license is granted by implication or otherwise under any patent or patent rights of Spectrum
Devices Corporation. Spectrum Devices Corporation makes no warranty, representation, or guarantee
regarding the suitability of its products for any particular purpose. “Typical” parameters are the average
values expected by Spectrum Devices Corporation and are provided for information purposes only. These
values can and do vary in different applications, and actual performance can vary over time. All operating
parameters should be validated by customer’s technical personnel for each application.
Life Support Applications
These products are not designed, intended, or authorized for use in applications intended for surgical implant
or to support or sustain life, in which the failure of the Spectrum Devices Corporation product could result in
personal injury or death. Spectrum Devices Corporation customers using or selling these products in such
applications do so at their own risk and agree to indemnify Spectrum Devices Corporation from any damages
resulting from improper use or sale.
Visit our website at
www.spectrumdevices.com
or contact our facility directly at
Spectrum Devices Corp., 2880 Bergey Road, Suite C, Hatfield, PA 19440.
Phone 215-997-7870 or FAX 215-997-7828
