Panasonic MA2C179, MA2C178 Datasheet

Switching Diodes

1st Band 2nd Band

φ 0.45 max.

φ 1.75 max.

13 min.

0.2 max.0.2 max.

13 min.

2.2 ± 0.3

COLORED BAND INDICATES CATHODE

2

1

MA2C178, MA2C179

Silicon epitaxial planar type

For high-speed switching circuits

■ Features

• Large forward current I

• High switching speed

• Small terminal capacitance, C

■ Absolute Maximum Ratings Ta = 25°C

Parameter Symbol Rating Unit

Reverse voltage

(DC)

Repetitive peak

reverse voltage

Average forward current I

Repetitive peak forward current

Non-repetitive peak forward I

surge current

Junction temperature T

Storage temperature T

Note) * : t = 1 s

*

FRM

t

MA2C178 V

R

40 V

MA2C179 80

MA2C178 V

RRM

40 V

MA2C179 80

F(AV)

I

FRM

FSM

j

stg

200 mA

600 mA

200 °C

−55 to +200 °C

1A

Unit : mm

1 : Cathode 2 : Anode

JEDEC : DO-34

■ Electrical Characteristics Ta = 25°C

Parameter Symbol Conditions Min Typ Max Unit

Reverse current (DC) MA2C178 I

MA2C179

MA2C178 I

MA2C179 VR = 75 V 500

MA2C178 I

MA2C179 VR = 75 V, Ta = 150°C 100

Forward voltage (DC) V

Terminal capacitance C

Reverse recovery time

Note) 1. Rated input/output frequency: 50 MHz

2. * : trr measuring circuit

■ Cathode Indication

*

Type No. MA2C178 MA2C179

Color 1st Band Violet Violet

2nd Band White Green

R1

R2

R

F

t

t

rr

VR = 15 V 50 nA

VR = 35 V 500 nA

VR = 35 V, Ta = 150°C 100 µA

IF = 200 mA 1.1 V

VR = 0 V, f = 1 MHz 4 pF

IF = 10 mA, VR = 1 V 20 ns

Irr = 0.1 · IR, RL = 100 Ω

1

MA2C178, MA2C179

Bias Application Unit N-50BU

A

Pulse Generator (PG-10N)

= 50 Ω

R

s

Characteristics charts of MA2C178

2

10

W.F.Analyzer (SAS-8130) R

I

 T

R

= 50 Ω

i

trrmeasuring circuit

a

Input Pulse Output Pulse

t

t

p

r

10%

90%

V

R

t

p

= 0.35 ns

t

r

δ = 0.05

2

10

t

= 2 µs

IR  V

I

F

= 10 mA

I

F

= 1 V

V

R

= 100 Ω

R

L

R

t

rr

I

= 0.1 · I

rr

Switching Diodes

Common characteristics charts

3

10

2

10

)

mA

R

(

F

10

1

Forward current I

−1

10

−2

10

0 0.2 0.4 0.6 0.8 1.0 1.2

1.2

t

IF  V

Forward voltage VF (V

VF  T

F

Ta = 150°C

100°C

25°C

− 20°C

)

a

10

) µA

(

R

1

−1

10

Reverse current I

−2

10

−3

10

0 40 80 120 160

Ambient temperature Ta (°C

VR = 35 V

15 V

)

Characteristics charts of MA2C179

IR  T

2

10

10

) µA

(

R

1

−1

10

Reverse current I

−2

10

a

VR = 75 V

15 V

10

) µA

(

R

1

−1

10

Reverse current I

−2

10

−3

10

0 1020304050

Ta = 150°C

Reverse voltage VR (V

IR  V

2

10

10

) µA

(

R

1

−1

10

Reverse current I

−2

10

R

Ta = 150°C

100°C

25°C

)

100°C

25°C

1.0

) V

(

0.8

F

0.6

0.4

Forward voltage V

0.2

0

−40 0 40 80 120 160

Ambient temperature Ta (°C

Ct  V

10

5

) pF

(

3

t

2

1

0.5

0.3

Terminal capacitance C

0.2

R

IF = 200 mA

10 mA

3 mA

f = 1 MHz

= 25°C

T

a

)

−3

10

0 40 80 120 160

Ambient temperature Ta (°C

)

−3

10

0 1020304050

Reverse voltage VR (V

)

0.1 0 1020304050

Reverse voltage VR (V

)

2

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