AC857CWQ

Document Number: DS39667 Rev. 1 - 2

2 of 5

www.diodes.com

September 2017

© Diodes Incorporated

AC857CWQ

Characteristic

Symbol

Value

Unit

Collector-Base Voltage

-50

V

Collector-Emitter Voltage

-45

V

Emitter-Base Voltage

-5.0

V

Continuous Collector Current

-100

mA

Peak Collector Current

-200

mA

Peak Emitter Current

-200

mA

Characteristic

Symbol

Value

Unit

Power Dissipation

(Note 6)

200

mW

Thermal Resistance, Junction to Ambient

(Note 6)

625

C/W

Operating and Storage Temperature Range

-65 to +150

C

Characteristic

Symbol

Min

Typ

Max

Unit

Test Condition

Collector-Base Breakdown Voltage

-50

-

-

V

Collector-Emitter Breakdown Voltage (Note 7)

-45

-

-

V

Emitter-Base Breakdown Voltage

-5

-

-

V

DC Current Gain (Note 7)

420

520

800

-

Collector Cutoff Current

-

-

-15

nA

-4

µA

Collector-Emitter Saturation Voltage (Note 7)

-

-75

-300

mV

-250

-650

Base-Emitter Turn-On Voltage (Note 7)

-600

-650

-750

mV

-

-

-820

Base-Emitter Saturation Voltage (Note 7)

-

-700

-

mV

-850

-950

Output Capacitance

-

3

4.5

pF

Transition Frequency

100

200

-

MHz

f = 100MHz

Noise Figure

NF

-

-

10

dB

∆f = 200Hz

Notes:

6. For a device mounted on minimum recommended pad layout 1oz copper that is on a single-sided FR4 PCB; device is measured under still air

conditions whilst operating in a steady-state.

7

. Measured under pulsed conditions. Pulse width ≤ 300µs. Duty cycle ≤ 2%