Ericsson PTB20101 Datasheet

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Description

PTB 20101

175 Watts P-Sync, 470–860 MHz

UHF TV Power Transistor

The 20101 is a class AB, NPN, common emitter UHF TV power
transistor intended for 28 Vdc operation from 470 to 860 MHz. It is
rated at 175 watts P-sync minimum output power. Ion implantation,
nitride surface passivation and gold metallization are used to ensure
excellent device reliability. 100% lot traceability is standard.

Typical Gain vs. Frequency

(as measured in a broadband circuit)

13

12

11

10

Gain (dB)

9

8

400 500 600 700 800 900

Frequency (MHz)

VCC = 28 V
I

= 2 x 200 mA

CQ

Pout = 110 W

 28 Volt, 860 MHz Characteristics

- Output Power = 175 Watts P-Sync

- Output Power = 110 (CW)

- Gain = 10.0 dB Min

 55% Collector Efficiency at 110 Watts
 Class AB Characteristics
 Gold Metallization
 Silicon Nitride Passivated

20101

LOT CODE

Package 20224

Maximum Ratings

Parameter Symbol Value Unit

Collector-Emitter Voltage V
Collector-Base Voltage V
Emitter-Base Voltage (collector open) V
Collector Current (continuous) I
Total Device Dissipation at T

Above 25°C derate by 1.89 W/°C
Storage Temperature Range T

Thermal Resistance (T

9/28/98

flange

= 25°C P

flange

= 70°C) R

1

CER
CBO
EBO

C

D

STG

θJC

40 Vdc
65 Vdc

4.0 Vdc
20 Adc

330 Watts

–40 to +150 °C

0.53 °C/W

PTB 20101

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Electrical Characteristics (100% Tested)

Characteristic Conditions Symbol Min Typ Max Units

Breakdown Voltage C to E IB = 0 A, IC = 100 mA V
Breakdown Voltage C to E VBE = 0 V, IC = 100 mA V
Breakdown Voltage E to B IC = 0 A, IE = 5 mA V
DC Current Gain VCE = 5 V, IC = 1 A h
Output Capacitance (per side) VCB = 28 V, IE = 0 A, f = 1 MHz C

(BR)CEO
(BR)CES
(BR)EBO

FE

ob

25 30 — Volts
55 70 — Volts

3.5 5 — Volts
20 50 100 —
—85—pF

RF Specifications (100% Tested)

Characteristic Symbol Min Typ Max Units

Output Power (P-Sync)

(V

Gain

(V
f = 860 MHz)

Collector Efficiency

(V
f = 860 MHz)

Load Mismatch Tolerance

(V
f = 860 MHz—all phase angles at frequency of test)

= 28 Vdc, ICQ = 200 mA per side, f = 860 MHz) Pout 175 — — Watts

CC

= 28 Vdc, P

CC

= 28 Vdc, P

CC

= 28 Vdc, P

CC

= 110 W, ICQ = 200 mA per side, G

out

= 110 W, ICQ = 200 mA per side, η

out

= 175 W, ICQ = 200 mA per side, Ψ — — 5:1 —

out

pe

C

10.0 11 — dB

55 58 — %

Impedance Data (data shown for fixed-tuned broadband circuit)

(VCC = 28 Vdc, P

= 110 W, ICQ = 200 mA per side)

out

Z Sourc

Frequency Z Source Z Load

MHz R jX R jX

450 0.4 -1.0 2.0 0.3
550 0.5 -1.3 1.6 0.0
650 0.7 -1.8 1.3 0.0
750 1.8 -2.0 1.0 -0.8
850 2.7 -0.5 0.9 -1.2

Z Load

2

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