1N957B(2004) 查看數據表（PDF） - Fairchild Semiconductor

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产品描述 (功能)

生产厂家

1N957B
(Rev.:2004)

Zeners

Fairchild Semiconductor 

Electrical Characteristics (Continued) TA=25°C unless otherwise noted

Device

1N982B

1N983B

1N984B

1N985B

1N986B

Min.

71.25

77.9

86.45

95

104.5

VZ (Volts) (Note 1)

Typ. Max.

75

78.75

82

86.1

91

95.55

100

105

110

115.5

@ IZ

1.7

1.5

1.4

1.3

1.1

ZZ (Ω) (Note 2)

ZZ @ IZ

ZZK @ IZK

Ω

mA

270

2000 0.25

330

3000 0.25

400

3000 0.25

500

3000 0.25

750

4000 0.25

1N987B

1N988B

1N989B

1N990B

1N991B

114

120

126

1.0

123.5

130

136.5 0.95

142.5

150

157.5 0.85

152

160

168

0.80

171

180

189

0.68

900

1100

1500

1700

2200

4500

5000

6000

6500

7100

0.25

0.25

0.25

0.25

0.25

IR @ VR

µA

Volts

5

56.0

5

62.2

5

69.2

5

76.0

5

83.6

5

91.2

5

98.8

5

114

5

121.6

5

136.8

IZM (mA)

(Note 3)

4.1

3.7

3.3

3.0

2.7

2.5

2.3

2.0

1.9

1.7

Notes:

1. Zener Voltage (VZ) Measurement

Nominal zener voltage is measured with the device junction in the thermal equilibrium at the lead temperature (TL) at 30°C ± 1°C and 3/8” lead length.

2. Zener Impedance (ZZ) Derivation

ZZT and ZZK are measured by dividing the ac voltage drop across the device by the ac current applied. The specified limits are for IZ(ac) = 0.1 IZ(dc) with the ac

frequency = 60Hz.

3. Maximum Zener Current Ratings (IZM)

The maximum current handling capability on a worst case basis is limited by the actual zener voltage at the operation point and the power derating curve.

©2004 Fairchild Semiconductor Corporation

1N957B - 1N991B, Rev. E2

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