BLF888A_BLF888AS#6

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Product data sheet

Rev. 6 — 1 September 2015

9 of 17

BLF888A; BLF888AS

UHF power LDMOS transistor

8. Test information

[1]

American technical ceramics type 800R or capacitor of same quality.

[2]

American technical ceramics type 800B or capacitor of same quality.

[3]

American technical ceramics type 180R or capacitor of same quality.

[4]

American technical ceramics type 100A or capacitor of same quality.

[5]

Printed-Circuit Board (PCB): Taconic RF35;

thickness copper plating = 35

m.

Table 9.

List of components

For test circuit, see Figure 10, Figure 11 and Figure 12.

Component

Description

Value

Remarks

B1, B2

semi rigid coax

25

; 49.5 mm

UT-090C-25 (EZ 90-25)

C1

multilayer ceramic chip capacitor

12 pF

[1]

C2, C3, C4, C5,

C6

multilayer ceramic chip capacitor

8.2 pF

[1]

C7

multilayer ceramic chip capacitor

6.8 pF

[2]

C8

multilayer ceramic chip capacitor

2.7 pF

[2]

C9

multilayer ceramic chip capacitor

2.2 pF

[2]

C10, C13, C14

multilayer ceramic chip capacitor

100 pF

[3]

C11, C12

multilayer ceramic chip capacitor

10 pF

[2]

C15, C16

multilayer ceramic chip capacitor

4.7

F, 50 V

Kemet C1210X475K5RAC-TU or

capacitor of same quality.

C17, C18, C23,

C24

multilayer ceramic chip capacitor

100 pF

[2]

C19, C20

multilayer ceramic chip capacitor

10

F, 50 V

TDK C570X7R1H106KT000N or

capacitor of same quality.

C21, C22

electrolytic capacitor

470

F; 63 V

C30

multilayer ceramic chip capacitor

10 pF

[4]

C31

multilayer ceramic chip capacitor

9.1 pF

[4]

C32

multilayer ceramic chip capacitor

3.9 pF

[4]

C33, C34, C35

multilayer ceramic chip capacitor

100 pF

[4]

C36, C37

multilayer ceramic chip capacitor

4.7

F, 50 V

TDK C4532X7R1E475MT020U or

capacitor of same quality.

L1

microstrip

-

[5]

(W

 L) 15 mm  13 mm

L2

microstrip

-

[5]

(W

 L) 5 mm  26 mm

L3, L32

microstrip

-

[5]

(W

 L) 2 mm  49.5 mm

L4

microstrip

-

[5]

(W

 L) 1.7 mm 3.5 mm

L5

microstrip

-

[5]

(W

 L) 2 mm  9.5 mm

L30

microstrip

-

[5]

(W

 L) 5 mm  13 mm

L31

microstrip

-

[5]

(W

 L) 2 mm  11 mm

L33

microstrip

-

[5]

(W

 L) 2 mm  3 mm

R1, R2

wire resistor

10



R3, R4

SMD resistor

5.6



0805

R5, R6

wire resistor

100



R7, R8

potentiometer

10 k

