ZMM5238B datasheet(3/3 Pages) PFS

Part #	ZMM5238B

Description	500mW SURFACE MOUNT ZENER DIODE

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Manufacturer	PFS [Shenzhen Ping Sheng Electronics Co., Ltd.]

Direct Link	http://ps-pfs.en.alibaba.com/

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ZMM5221B-ZMM5267B

0

50

100

150

200

0

510

15

20

25

V , ZENER VOLTAGE (V)

Fig. 2 Junction Capacitance vs Zener Voltage

Z

V = 2.0V

R

T = 25 C

j

°

1

10

100

1000

0

5

10

15

20

25

V , ZENER VOLTAGE (V)

Fig. 3 Differential Zener Impedance

Z

I = 1.0mA

Z

5.0mA

10mA

T = 25 C

j

°

1.0

10

100

1000

0.1

1.0

10

100

t , SQUARE WAVE PULSE DURATION (seconds)

Fig.4 Typical Normalized Transient Thermal Impedance Curves

1

1000

D=0.5

0.2

0.1

0.05

0.02

0.01

t1

t2

P(pk)

T - T = P

R (t)

Duty Cycle,D=t /t

J

A

PK

JA

12

* θ

R

(t) = r(t) R

R

= 300 K/W

JA

* θ

θ

θJA

0

100

200

300

400

500

0

40

80

120

160

200

T , AMBIENT TEMPERATURE

Fig.1 Power Dissipation vs Ambient Temperature

A

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ZMM5238B Datasheet(PDF) 3 Page - Shenzhen Ping Sheng Electronics Co., Ltd.

ZMM5238B Datasheet(HTML) 3 Page - Shenzhen Ping Sheng Electronics Co., Ltd.

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