UNR412x Series

2

SJH00019BED

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

Forward current UNR4121

40



transfer ratio

UNR4122/412Y

50

UNR4123/4124

60

UNR412X

20

Collector-emitter saturation voltage

− 0.25

V

UNR412X

= −10 mA, I

B

= − 0.3 mA

− 0.25

UNR412Y

− 0.15

Output voltage high-level

V

Output voltage low-level

= −5 V, V

B

= −3.5 V, R

L

= 500 Ω− 0.2

V

Transition frequency

200

MHz

Input resistance UNR4121/4124

−30%

2.2

+30%

k

Ω

UNR4122

4.7

UNR4123

10

UNR412X

0.27

UNR412Y

3.1

Resistance ratio

0.8

1.0

1.2



UNR4124

0.17

0.22

0.27

UNR412X

0.043

0.054

0.065

UNR412Y

0.67

■ Electrical Characteristics (continued) T

Common characteristics chart

0

0

160

40

120

80

100

300

200

400

Ambient temperature T

Note) Measuring methods are based on JAPANESE INDUSTRIAL STANDARD JIS C 7030 measuring methods for transistors.