BLF974P
HF / VHF power LDMOS transistor
Rev. 1 — 26 March 2020
Product data sheet
1. Product profile
1.1 General description
A 500 W LDMOS power transistor for broadcast applications and industrial applications in
the HF to 700 MHz band.
Table 1.
Application information
Test signal
f
VDS
PL
Gp
D
(MHz)
(V)
(W)
(dB)
(%)
CW pulsed [1]
225
50
500
25.7
76
CW
225
50
500
25.3
77
[1]
tp = 100 s; = 10 %.
1.2 Features and benefits
Easy power control
Integrated ESD protection
Excellent ruggedness
High efficiency
Excellent thermal stability
Designed for broadband operation (10 MHz to 700 MHz)
For RoHS compliance see the product details on the Ampleon website
1.3 Applications
Industrial, scientific and medical applications
Broadcast transmitter applications
BLF974P
HF / VHF power LDMOS transistor
2. Pinning information
Table 2.
Pinning
Pin
Description
1
drain1
2
drain2
3
gate1
4
gate2
5
Simplified outline
1
Graphic symbol
1
2
5
3
3
4
5
4
[1]
source
2
sym117
[1]
Connected to flange.
3. Ordering information
Table 3.
Ordering information
Type number
BLF974P
Package
Name
Description
Version
-
flanged balanced ceramic package; 2 mounting holes;
4 leads
SOT539A
4. Limiting values
Table 4.
Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol
Parameter
VDS
Min
Max
Unit
drain-source voltage
-
108
V
VGS
gate-source voltage
6
+11
V
Tstg
storage temperature
65
+150
C
-
225
C
[1]
junction temperature
Tj
[1]
Conditions
Continuous use at maximum temperature will affect the reliability, for details refer to the online MTF
calculator.
5. Thermal characteristics
Table 5.
Thermal characteristics
Symbol Parameter
Rth(j-c)
Zth(j-c)
BLF974P
Product data sheet
Conditions
Typ
thermal resistance from junction to case
Tcase = 90 C; PL = 500 W
[1]
transient thermal impedance from
junction to case
Tcase = 90 C; tp = 100 s;
= 10 %
[2]
[1]
Rth(j-c) is measured under RF conditions.
[2]
See Figure 1.
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 26 March 2020
Unit
0.161 K/W
0.045 K/W
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2 of 18
BLF974P
HF / VHF power LDMOS transistor
amp01214
0.2
Zth(j-c)
(K/W)
0.16
(7)
(6)
(5)
(4)
(3)
(2)
(1)
0.12
0.08
0.04
0
10-7
10-6
10-5
10-4
10-3
10-2
10-1
1
tp (s)
10
(1) = 1 %
(2) = 2 %
(3) = 5 %
(4) = 10 %
(5) = 20 %
(6) = 50 %
(7) = 100 % (DC)
Fig 1.
Transient thermal impedance from junction to case as a function of pulse
duration
6. Characteristics
Table 6.
DC characteristics
Tj = 25 C; per section unless otherwise specified.
Symbol Parameter
Conditions
Min Typ Max Unit
V(BR)DSS drain-source breakdown voltage VGS = 0 V; ID = 1.97 mA
108 -
-
V
VGS(th)
gate-source threshold voltage
VDS = 10 V; ID = 197 mA
1.5
2.0
2.5
V
IDSS
drain leakage current
VGS = 0 V; VDS = 50 V
-
-
1.4
A
IDSX
drain cut-off current
VGS = VGS(th) + 3.75 V;
VDS = 10 V
27.3 35.6 -
A
IGSS
gate leakage current
VGS = 11 V; VDS = 0 V
-
-
nA
RDS(on)
drain-source on-state resistance VGS = VGS(th) + 3.75 V;
ID = 6.895 A
-
0.11 -
140
Table 7.
AC characteristics
Tj = 25 C; per section unless otherwise specified.
Symbol Parameter
BLF974P
Product data sheet
Conditions
Min Typ
Max Unit
Crs
feedback capacitance
VGS = 0 V; VDS = 50 V; f = 1 MHz
-
0.74
-
pF
Ciss
input capacitance
VGS = 0 V; VDS = 50 V; f = 1 MHz
-
193
-
pF
Coss
output capacitance
VGS = 0 V; VDS = 50 V; f = 1 MHz
-
52.2
-
pF
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Rev. 1 — 26 March 2020
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3 of 18
BLF974P
HF / VHF power LDMOS transistor
amp01077
300
Coss
(pF)
250
200
150
100
50
0
0
10
20
30
40
VDS (V)
50
VGS = 0 V; f = 1 MHz.
Fig 2.
Output capacitance as a function of drain-source voltage; typical values per
section
Table 8.
RF characteristics
Test signal: CW pulsed; tp = 100 s; = 10 %; f = 225 MHz; RF performance at VDS = 50 V;
IDq = 50 mA per section; Tcase = 25 C; unless otherwise specified; in a class-AB production test
circuit.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Gp
power gain
RLin
input return loss
PL = 500 W
24.5
25.7
-
dB
PL = 500 W
-
19
15
dB
D
drain efficiency
PL = 500 W
74
76
-
%
7. Test information
7.1 Ruggedness in class-AB operation
The BLF974P is capable of withstanding a load mismatch corresponding to
VSWR = 13 : 1 through all phases under the following conditions: VDS = 50 V;
IDq = 50 mA per section; PL = 500 W; f = 225 MHz; CW pulsed (tp = 100 s; = 10 %).
BLF974P
Product data sheet
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Rev. 1 — 26 March 2020
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4 of 18
BLF974P
HF / VHF power LDMOS transistor
7.2 Impedance information
drain 1
gate 1
Zi
ZL
gate 2
drain 2
amp01314
Fig 3.
Definition of transistor impedance
Table 9.
Typical push-pull impedance
Simulated Zi and ZL device impedance; impedance info at VDS = 50 V and PL = 500 W.
BLF974P
Product data sheet
f
Zi
ZL
(MHz)
()
()
225
1.4 j9.2
8.4 + j3.3
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Rev. 1 — 26 March 2020
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5 of 18
BLF974P
HF / VHF power LDMOS transistor
7.3 Test circuit
200.3 mm
R5
90 mm
R1
B1
L3
L1
C22
B3
C4
R3
R7
C6
C2
C1
C10
C8
C13
C15
C17
C19
6 mm
C21
C12
C3
C20
C18
C16 C14
C9
6 mm
C5
C7
B2
R8
L2
R4
C11
B4
L4
R2
R6
C23
amp01215
43.5 mm
Printed-Circuit Board (PCB): Rogers RT/duroid 5880; thickness = 0.79 mm; thickness copper plating = 35 m.
See Table 10 for a list of components.
Fig 4.
Component layout for class-AB production test circuit
Table 10. List of components
For test circuit see Figure 4.
Component
Description
C1, C6, C7, C21
multilayer ceramic chip capacitor 1 nF
Value
ATC 100B
Remarks
C2, C3
multilayer ceramic chip capacitor 68 pF
ATC 100B
C4, C5, C10, C11
multilayer ceramic chip capacitor 4.7 F, 100 V
C3225X7S2A475K200AE
C8, C9
multilayer ceramic chip capacitor 51 pF
ATC 100B
C12
multilayer ceramic chip capacitor 20 pF
ATC 800B
C13, C14, C15, C16,
C17, C18
multilayer ceramic chip capacitor 10 pF
ATC 800B
C19, C20
multilayer ceramic chip capacitor 20 pF
ATC 800B
C22, C23
electrolytic capacitor
1500 F, 80 V
R1, R2
resistor
10
SMD 1206
R3, R4
resistor
4.7
SMD 1206
R5, R6
resistor
0.01
Ohmite: FC4L110R010FER
R7, R8
resistor
2 3.6 , 0.6 W
SMD 1206
L1, L2
1 mm copper wire
3 turns, D = 3 mm, l = 2.5 mm
L3, L4
1 mm copper wire
4 turns, D = 3 mm, l = 3.5 mm
B1, B2, B3, B4
coaxial line
50 , 58 mm
BLF974P
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 26 March 2020
HUBER+SUHNER:
EZ-141-AL-TP-M17
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6 of 18
BLF974P
HF / VHF power LDMOS transistor
7.4 Graphical data
7.4.1 1-Tone CW pulsed
amp01216
27
90
Gp
(dB)
ηD
(%)
25
amp01217
62
PL
(dBm)
(dBm)
70
Id
Ideal
deal PL
60
(2)
Gp
(1)
23
50
58
30
56
10
700
54
PL
ηD
21
19
0
100
200
300
400
500
600
PL (W)
30
VDS = 50 V; IDq = 2 50 mA; f = 225 MHz; tp = 100 s;
= 10 %.
31
32
33
34
35
Pi (dBm)
36
VDS = 50 V; IDq = 2 50 mA; f = 225 MHz; tp = 100 s;
= 10 %.
(1) PL(1dB) = 57.78 dBm (600 W)
(2) PL(3dB) = 58.09 dBm (645 W)
Fig 5.
Power gain and drain efficiency as function of
output power; typical values
BLF974P
Product data sheet
Fig 6.
Output power as a function of input power;
typical values
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Rev. 1 — 26 March 2020
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7 of 18
BLF974P
HF / VHF power LDMOS transistor
amp01218
26
Gp
(dB)
amp01219
90
ηD
(%)
(1)
(2)
(3)
300
400
(4)
(5)
25
70
24
23
50
(5)
(4)
22
(3)
30
(2)
21
(1)
20
10
0
100
200
300
400
500
600
PL (W)
700
0
IDq = 2 50 mA; f = 225 MHz; tp = 100 s; = 10 %.
100
(1) VDS = 30 V
(2) VDS = 35 V
(2) VDS = 35 V
(3) VDS = 40 V
(3) VDS = 40 V
(4) VDS = 45 V
(4) VDS = 45 V
(5) VDS = 50 V
(5) VDS = 50 V
Power gain as a function of output power;
typical values
BLF974P
Product data sheet
500
600
PL (W)
700
IDq = 2 50 mA; f = 225 MHz; tp = 100 s; = 10 %.
(1) VDS = 30 V
Fig 7.
200
Fig 8.
Drain efficiency as a function of output power;
typical values
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Rev. 1 — 26 March 2020
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8 of 18
BLF974P
HF / VHF power LDMOS transistor
amp01220
28
Gp
(dB)
amp01221
90
ηD
(%)
27
(7)
26
(1)
(2)
(3)
(4)
(5)
(6)
(7)
70
(6)
(5)
25
50
(4)
(3)
24
30
(2)
23
(1)
22
10
0
100
200
300
400
500
600
PL (W)
700
VDS = 50 V; f = 225 MHz; tp = 100 s; = 10 %.
0
100
200
(1) IDq = 2 10 mA
(2) IDq = 2 50 mA
(2) IDq = 2 50 mA
(3) IDq = 2 100 mA
(3) IDq = 2 100 mA
(4) IDq = 2 200 mA
(4) IDq = 2 200 mA
(5) IDq = 2 400 mA
(5) IDq = 2 400 mA
(6) IDq = 2 500 mA
(6) IDq = 2 500 mA
(7) IDq = 2 750 mA
Product data sheet
500
600
PL (W)
700
(7) IDq = 2 750 mA
Power gain as a function of output power;
typical values
BLF974P
400
VDS = 50 V; f = 225 MHz; tp = 100 s; = 10 %.
(1) IDq = 2 10 mA
Fig 9.
300
Fig 10. Drain efficiency as a function of output power;
typical values
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Rev. 1 — 26 March 2020
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9 of 18
BLF974P
HF / VHF power LDMOS transistor
7.4.2 1-Tone CW
amp01222
27
90
Gp
(dB)
amp01223
26
ηD
(%)
Gp
(dB)
25
25
70
Gp
24
23
50
23
(4)
22
ηD
21
(2)
30
21
19
0
100
200
300
400
500
600
PL (W)
10
700
VDS = 50 V; IDq = 2 50 mA; f = 225 MHz.
(5)
(3)
(1)
20
0
100
200
300
400
500
600
PL (W)
700
IDq = 2 50 mA; f = 225 MHz.
(1) VDS = 30 V
(2) VDS = 35 V
(3) VDS = 40 V
(4) VDS = 45 V
(5) VDS = 50 V
Fig 11. Power gain and drain efficiency as function of
output power; typical values
BLF974P
Product data sheet
Fig 12. Power gain as a function of output power;
typical values
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Rev. 1 — 26 March 2020
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10 of 18
BLF974P
HF / VHF power LDMOS transistor
amp01224
90
ηD
(%)
(1)
(2)
(3)
(4)
(5)
amp01225
28
Gp
(dB)
27
(7)
70
26
(6)
(5)
50
25
(4)
(3)
24
30
(2)
23
(1)
10
22
0
100
200
300
400
500
600
PL (W)
700
IDq = 2 50 mA; f = 225 MHz.
0
100
200
300
400
500
600
PL (W)
700
VDS = 50 V; f = 225 MHz.
(1) VDS = 30 V
(1) IDq = 2 10 mA
(2) VDS = 35 V
(2) IDq = 2 50 mA
(3) VDS = 40 V
(3) IDq = 2 100 mA
(4) VDS = 45 V
(4) IDq = 2 200 mA
(5) VDS = 50 V
(5) IDq = 2 400 mA
(6) IDq = 2 500 mA
(7) IDq = 2 750 mA
Fig 13. Drain efficiency as a function of output power;
typical values
BLF974P
Product data sheet
Fig 14. Power gain as a function of output power;
typical values
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Rev. 1 — 26 March 2020
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11 of 18
BLF974P
HF / VHF power LDMOS transistor
amp01226
90
ηD
(%)
(1)
(2)
(3)
(4)
(5)
(6)
(7)
70
50
amp01227
84.8
ηD
(%)
84
83.2
30
82.4
10
81.6
0
100
200
300
400
500
600
PL (W)
700
0
20
40
60
80
T (°C)
100
VDS = 50 V; IDq = 2 50 mA; f = 225 MHz; at PL(2dB).
VDS = 50 V; f = 225 MHz.
(1) IDq = 2 10 mA
(2) IDq = 2 50 mA
(3) IDq = 2 100 mA
(4) IDq = 2 200 mA
(5) IDq = 2 400 mA
(6) IDq = 2 500 mA
(7) IDq = 2 750 mA
Fig 15. Drain efficiency as a function of output power;
typical values
amp01228
23.8
Gp
(dB)
Fig 16. Drain efficiency as a function of temperature;
typical values
amp01229
635
PL
(W)
625
23.6
615
23.4
605
595
23.2
585
23
575
0
20
40
60
80
T (°C)
100
VDS = 50 V; IDq = 2 50 mA; f = 225 MHz; at PL(2dB).
Fig 17. Power gain as a function of temperature;
typical values
BLF974P
Product data sheet
0
20
40
60
80
T (°C)
100
VDS = 50 V; IDq = 2 50 mA; f = 225 MHz; at PL(2dB).
Fig 18. Output power as a function of temperature;
typical values
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Rev. 1 — 26 March 2020
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12 of 18
BLF974P
HF / VHF power LDMOS transistor
7.4.3 2-Tone CW
amp01230
27
80
Gp
(dB)
26
amp01231
0
ηD
(%)
IMD3
(dBc)
70
-20
25
60
Gp
24
50
23
40
-40
(1)
(2)
(3)
(4)
(5)
(6)
(7)
-60
ηD
22
30
21
0
200
400
600
800
PL(PEP) (W)
20
1000
VDS = 50 V; IDq = 2 50 mA; f1 = 224.95 MHz;
f2 = 225.05 MHz.
-80
0
100
200
300
400
500 600 700
PL(PEP) (W)
800
VDS = 50 V; f1 = 224.95 MHz; f2 = 225.05 MHz.
(1) IDq = 2 10 mA
(2) IDq = 2 50 mA
(3) IDq = 2 100 mA
(4) IDq = 2 200 mA
(5) IDq = 2 400 mA
(6) IDq = 2 500 mA
(7) IDq = 2 750 mA
Fig 19. Power gain and drain efficiency as functions
of peak envelope load power; typical values
BLF974P
Product data sheet
Fig 20. Third order intermodulation distortion as a
function of peak envelope load power; typical
values
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13 of 18
BLF974P
HF / VHF power LDMOS transistor
8. Package outline
Flanged balanced ceramic package; 2 mounting holes; 4 leads
SOT539A
D
A
F
D1
U1
B
q
C
w2 M C M
H1
1
c
2
E1
p
H U2
5
L
3
A
E
w1 M A M B M
4
w3 M
b
Q
e
0
5
10 mm
scale
DIMENSIONS (millimetre dimensions are derived from the original inch dimensions)
UNIT
A
mm
4.7
4.2
inches
b
c
D
D1
e
E
E1
11.81 0.18 31.55 31.52
9.50
13.72
11.56 0.10 30.94 30.96
9.30
9.53
9.27
F
H
H1
L
1.75 17.12 25.53 3.48
1.50 16.10 25.27 2.97
p
Q
q
3.30
3.05
2.26
2.01
35.56
U1
U2
w1
41.28 10.29
0.25
41.02 10.03
w2
w3
0.51
0.25
0.185 0.465 0.007 1.242 1.241
0.374 0.375 0.069 0.674 1.005 0.137 0.130 0.089
1.625 0.405
1.400
0.010 0.020 0.010
0.540
0.165 0.455 0.004 1.218 1.219
0.366 0.365 0.059 0.634 0.995 0.117 0.120 0.079
1.615 0.395
Note
1. millimeter dimensions are derived from the original inch dimensions.
2. recommended screw pitch dimension of 1.52 inch (38.6 mm) based on M3 screw.
OUTLINE
VERSION
REFERENCES
IEC
JEDEC
EIAJ
EUROPEAN
PROJECTION
ISSUE DATE
10-02-02
12-05-02
SOT539A
Fig 21. Package outline SOT539A
BLF974P
Product data sheet
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Rev. 1 — 26 March 2020
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BLF974P
HF / VHF power LDMOS transistor
9. Handling information
CAUTION
This device is sensitive to ElectroStatic Discharge (ESD). Observe precautions for handling
electrostatic sensitive devices.
Such precautions are described in the ANSI/ESD S20.20, IEC/ST 61340-5, JESD625-A or
equivalent standards.
Table 11.
ESD sensitivity
ESD model
Class
Charged Device Model (CDM); According to ANSI/ESDA/JEDEC standard JS-002
C2A [1]
Human Body Model (HBM); According to ANSI/ESDA/JEDEC standard JS-001
2 [2]
[1]
CDM classification C2A is granted to any part that passes after exposure to an ESD pulse of 500 V.
[2]
HBM classification 2 is granted to any part that passes after exposure to an ESD pulse of 2000 V.
10. Abbreviations
Table 12.
Abbreviations
Acronym
Description
CW
Continuous Wave
HF
High Frequency
LDMOS
Laterally Diffused Metal-Oxide Semiconductor
MTF
Median Time to Failure
RoHS
Restriction of Hazardous Substances
SMD
Surface Mounted Device
VHF
Very High Frequency
VSWR
Voltage Standing Wave Ratio
11. Revision history
Table 13.
Revision history
Document ID
Release date
Data sheet status
Change notice
Supersedes
BLF974P v.1
20200326
Product data sheet
-
-
BLF974P
Product data sheet
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Rev. 1 — 26 March 2020
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BLF974P
HF / VHF power LDMOS transistor
12. Legal information
12.1 Data sheet status
Document status[1][2]
Product status[3]
Definition
Objective [short] data sheet
Development
This document contains data from the objective specification for product development.
Preliminary [short] data sheet
Qualification
This document contains data from the preliminary specification.
Product [short] data sheet
Production
This document contains the product specification.
[1]
Please consult the most recently issued document before initiating or completing a design.
[2]
The term ‘short data sheet’ is explained in section “Definitions”.
[3]
The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status
information is available on the Internet at URL http://www.ampleon.com.
12.2 Definitions
Draft — The document is a draft version only. The content is still under
internal review and subject to formal approval, which may result in
modifications or additions. Ampleon does not give any representations or
warranties as to the accuracy or completeness of information included herein
and shall have no liability for the consequences of use of such information.
Short data sheet — A short data sheet is an extract from a full data sheet
with the same product type number(s) and title. A short data sheet is intended
for quick reference only and should not be relied upon to contain detailed and
full information. For detailed and full information see the relevant full data
sheet, which is available on request via the local Ampleon sales office. In
case of any inconsistency or conflict with the short data sheet, the full data
sheet shall prevail.
Product specification — The information and data provided in a Product
data sheet shall define the specification of the product as agreed between
Ampleon and its customer, unless Ampleon and customer have explicitly
agreed otherwise in writing. In no event however, shall an agreement be valid
in which the Ampleon product is deemed to offer functions and qualities
beyond those described in the Product data sheet.
12.3 Disclaimers
Maturity — The information in this document can only be regarded as final
once the relevant product(s) has passed the Release Gate in Ampleon's
release process. Prior to such release this document should be regarded as a
draft version.
Limited warranty and liability — Information in this document is believed to
be accurate and reliable. However, Ampleon does not give any
representations or warranties, expressed or implied, as to the accuracy or
completeness of such information and shall have no liability for the
consequences of use of such information. Ampleon takes no responsibility for
the content in this document if provided by an information source outside of
Ampleon.
In no event shall Ampleon be liable for any indirect, incidental, punitive,
special or consequential damages (including - without limitation - lost profits,
lost savings, business interruption, costs related to the removal or
replacement of any products or rework charges) whether or not such
damages are based on tort (including negligence), warranty, breach of
contract or any other legal theory.
Notwithstanding any damages that customer might incur for any reason
whatsoever, Ampleon’s aggregate and cumulative liability towards customer
for the products described herein shall be limited in accordance with the
Terms and conditions of commercial sale of Ampleon.
BLF974P
Product data sheet
Right to make changes — Ampleon reserves the right to make changes to
information published in this document, including without limitation
specifications and product descriptions, at any time and without notice. This
document supersedes and replaces all information supplied prior to the
publication hereof.
Suitability for use — Ampleon products are not designed, authorized or
warranted to be suitable for use in life support, life-critical or safety-critical
systems or equipment, nor in applications where failure or malfunction of an
Ampleon product can reasonably be expected to result in personal injury,
death or severe property or environmental damage. Ampleon and its
suppliers accept no liability for inclusion and/or use of Ampleon products in
such equipment or applications and therefore such inclusion and/or use is at
the customer’s own risk.
Applications — Applications that are described herein for any of these
products are for illustrative purposes only. Ampleon makes no representation
or warranty that such applications will be suitable for the specified use without
further testing or modification.
Customers are responsible for the design and operation of their applications
and products using Ampleon products, and Ampleon accepts no liability for
any assistance with applications or customer product design. It is customer’s
sole responsibility to determine whether the Ampleon product is suitable and
fit for the customer’s applications and products planned, as well as for the
planned application and use of customer’s third party customer(s). Customers
should provide appropriate design and operating safeguards to minimize the
risks associated with their applications and products.
Ampleon does not accept any liability related to any default, damage, costs or
problem which is based on any weakness or default in the customer’s
applications or products, or the application or use by customer’s third party
customer(s). Customer is responsible for doing all necessary testing for the
customer’s applications and products using Ampleon products in order to
avoid a default of the applications and the products or of the application or
use by customer’s third party customer(s). Ampleon does not accept any
liability in this respect.
Limiting values — Stress above one or more limiting values (as defined in
the Absolute Maximum Ratings System of IEC 60134) will cause permanent
damage to the device. Limiting values are stress ratings only and (proper)
operation of the device at these or any other conditions above those given in
the Recommended operating conditions section (if present) or the
Characteristics sections of this document is not warranted. Constant or
repeated exposure to limiting values will permanently and irreversibly affect
the quality and reliability of the device.
Terms and conditions of commercial sale — Ampleon products are sold
subject to the general terms and conditions of commercial sale, as published
at http://www.ampleon.com/terms, unless otherwise agreed in a valid written
individual agreement. In case an individual agreement is concluded only the
terms and conditions of the respective agreement shall apply. Ampleon
hereby expressly objects to applying the customer’s general terms and
conditions with regard to the purchase of Ampleon products by customer.
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 26 March 2020
© Ampleon Netherlands B.V. 2020. All rights reserved.
16 of 18
BLF974P
HF / VHF power LDMOS transistor
No offer to sell or license — Nothing in this document may be interpreted or
construed as an offer to sell products that is open for acceptance or the grant,
conveyance or implication of any license under any copyrights, patents or
other industrial or intellectual property rights.
Export control — This document as well as the item(s) described herein
may be subject to export control regulations. Export might require a prior
authorization from competent authorities.
Non-automotive qualified products — Unless this data sheet expressly
states that this specific Ampleon product is automotive qualified, the product
is not suitable for automotive use. It is neither qualified nor tested in
accordance with automotive testing or application requirements. Ampleon
accepts no liability for inclusion and/or use of non-automotive qualified
products in automotive equipment or applications.
In the event that customer uses the product for design-in and use in
automotive applications to automotive specifications and standards, customer
(a) shall use the product without Ampleon’s warranty of the product for such
automotive applications, use and specifications, and (b) whenever customer
uses the product for automotive applications beyond Ampleon’s specifications
such use shall be solely at customer’s own risk, and (c) customer fully
indemnifies Ampleon for any liability, damages or failed product claims
resulting from customer design and use of the product for automotive
applications beyond Ampleon’s standard warranty and Ampleon’s product
specifications.
Translations — A non-English (translated) version of a document is for
reference only. The English version shall prevail in case of any discrepancy
between the translated and English versions.
12.4 Trademarks
Notice: All referenced brands, product names, service names and trademarks
are the property of their respective owners.
13. Contact information
For more information, please visit: http://www.ampleon.com
For sales office addresses, please visit: http://www.ampleon.com/sales
BLF974P
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 26 March 2020
© Ampleon Netherlands B.V. 2020. All rights reserved.
17 of 18
BLF974P
HF / VHF power LDMOS transistor
14. Contents
1
1.1
1.2
1.3
2
3
4
5
6
7
7.1
7.2
7.3
7.4
7.4.1
7.4.2
7.4.3
8
9
10
11
12
12.1
12.2
12.3
12.4
13
14
Product profile . . . . . . . . . . . . . . . . . . . . . . . . . . 1
General description . . . . . . . . . . . . . . . . . . . . . 1
Features and benefits . . . . . . . . . . . . . . . . . . . . 1
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Pinning information . . . . . . . . . . . . . . . . . . . . . . 2
Ordering information . . . . . . . . . . . . . . . . . . . . . 2
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 2
Thermal characteristics . . . . . . . . . . . . . . . . . . 2
Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Test information . . . . . . . . . . . . . . . . . . . . . . . . . 4
Ruggedness in class-AB operation . . . . . . . . . 4
Impedance information . . . . . . . . . . . . . . . . . . . 5
Test circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Graphical data . . . . . . . . . . . . . . . . . . . . . . . . . 7
1-Tone CW pulsed . . . . . . . . . . . . . . . . . . . . . . 7
1-Tone CW . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2-Tone CW . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Package outline . . . . . . . . . . . . . . . . . . . . . . . . 14
Handling information. . . . . . . . . . . . . . . . . . . . 15
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Revision history . . . . . . . . . . . . . . . . . . . . . . . . 15
Legal information. . . . . . . . . . . . . . . . . . . . . . . 16
Data sheet status . . . . . . . . . . . . . . . . . . . . . . 16
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Contact information. . . . . . . . . . . . . . . . . . . . . 17
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
© Ampleon Netherlands B.V. 2020.
All rights reserved.
For more information, please visit: http://www.ampleon.com
For sales office addresses, please visit: http://www.ampleon.com/sales
Date of release: 26 March 2020
Document identifier: BLF974P