DISCRETE SEMICONDUCTORS

DATA SHEET

BF689K
NPN 2 GHz wideband transistor
Product specification September 1995
File under Discrete Semiconductors, SC14
Philips Semiconductors Product specification

NPN 2 GHz wideband transistor BF689K

DESCRIPTION PINNING
NPN transistor in a plastic SOT54 PIN DESCRIPTION
(TO-92 variant) envelope. It is
Code: F689 1
intended for application as an 2
amplifier or oscillator in the VHF and 1 emitter 3
UHF range. 2 base
3 collector
MSB034

Fig.1 SOT54.

QUICK REFERENCE DATA

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

VCBO collector-base voltage open emitter − − 25 V
VCEO collector-emitter voltage open base − − 15 V
IC DC collector current − − 25 mA
Ptot total power dissipation up to Tamb = 60 °C − − 360 mW
hFE DC current gain IC = 2 mA; VCE = 5 V; Tj = 25 °C 20 − −
IC = 20 mA; VCE = 5 V; Tj = 25 °C 35 − −
fT transition frequency IC = 15 mA; VCE = 5 V; f = 500 MHz − 1.8 − GHz

LIMITING VALUES
In accordance with the Absolute Maximum System (IEC 134).
SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT
VCBO collector-base voltage open emitter − 25 V
VCEO collector-emitter voltage open base − 15 V
VCER collector-emitter voltage RBE ≤ 50 Ω − 25 V
VEBO emitter-base voltage open collector − 3.5 V
IC DC collector current − 25 mA
ICM peak collector current tp < 1 µs − 50 mA
Ptot total power dissipation up to Tamb= 60 °C − 360 mW
Tstg storage temperature −55 150 °C
Tj junction temperature − 150 °C

September 1995 2
Philips Semiconductors Product specification

NPN 2 GHz wideband transistor BF689K

THERMAL RESISTANCE

SYMBOL PARAMETER CONDITIONS THERMAL RESISTANCE

Rth j-a thermal resistance from junction to ambient in free air 250 K/W

CHARACTERISTICS
Tj = 25 °C unless otherwise specified.

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

ICBO collector cut-off current IE = 0; VCB = 15 V − − 50 nA
IEBO emitter cut-off current IC = 0; VEB = 2 V − − 1 µA
VCE sat collector-emitter saturation voltage IC = 25 mA; IB = 1.25 mA − − 1.0 V
VBE sat base-emitter saturation voltage IC = 25 mA; IB = 1.25 mA − − 1.0 V
hFE DC current gain IC = 2 mA; VCE = 5 V 20 − −
IC = 20 mA; VCE = 5 V 35 − −
fT transition frequency IC = 15 mA; VCE = 5 V; f = 500 MHz − 1.8 − GHz
Cre feedback capacitance IC = 2 mA; VCE = 5 V; f = 1 MHz; − 1.1 − pF
Tamb = 25 °C
Gp power gain IC = 2 mA; VCE = 5 V; f = 100 MHz; − 16 − dB
Tamb = 25 °C; ZS = 60 Ω; RL = 2 kΩ
IC = 2 mA; VCE = 5 V; f = 200 MHz; − 16 − dB
Tamb = 25 °C; ZS = 60 Ω; RL = 920 Ω
F noise figure IC = 2 mA; VCE = 5 V; f = 100 MHz; − 4 − dB
Tamb = 25 °C; ZS = 60 Ω
IC = 2 mA; VCE = 5 V; f = 200 MHz; − 3 − dB
Tamb = 25 °C; ZS = 60 Ω

September 1995 3
Philips Semiconductors Product specification

NPN 2 GHz wideband transistor BF689K

PACKAGE OUTLINE

Plastic single-ended leaded (through hole) package; 3 leads (on-circle) SOT54 variant

L2

d A L

1
2 e1
D e

b1
L1

0 2.5 5 mm

scale

DIMENSIONS (mm are the original dimensions)

L1(1) L2
UNIT A b b1 c D d E e e1 L
max max
5.2 0.48 0.66 0.45 4.8 1.7 4.2 14.5
mm 2.54 1.27 2.5 2.5
5.0 0.40 0.56 0.40 4.4 1.4 3.6 12.7

Notes
1. Terminal dimensions within this zone are uncontrolled to allow for flow of plastic and terminal irregularities.

OUTLINE REFERENCES EUROPEAN

ISSUE DATE
VERSION IEC JEDEC EIAJ PROJECTION

SOT54 variant TO-92 SC-43 97-04-14

September 1995 4
Philips Semiconductors Product specification

NPN 2 GHz wideband transistor BF689K

DEFINITIONS

Data Sheet Status

Objective specification This data sheet contains target or goal specifications for product development.
Preliminary specification This data sheet contains preliminary data; supplementary data may be published later.
Product specification This data sheet contains final product specifications.
Limiting values
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.
Application information
Where application information is given, it is advisory and does not form part of the specification.

LIFE SUPPORT APPLICATIONS

These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.

September 1995 5
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