SJxx20LxTP datasheet(3/8 Pages) LITTELFUSE

Part #	SJxx20LxTP

Description	This SJxx20xx high temperature SCR series is ideal for uni-directional switch applications such as phase control in heating

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Manufacturer	LITTELFUSE [Littelfuse]

Direct Link	http://www.littelfuse.com

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3 / 8 page

Revised: 01/16/18

Specifications are subject to change without notice.

Thyristors

20 / 25 Amp Standard SCRs

Sxx20x & Sxx25x Series

Figure 3: Normalized DC Holding Current

vs. Junction Temperature

Figure 4: On-State Current vs. On-State

Voltage (Typical)

Junction Temperature (T

J) – (ºC)

0.0

0.4

0.8

1.2

1.6

2.0

-40-15

10

35

60

85

110135

150

Figure 5: Power Dissipation (Typical)

vs. RMS On-State Current

Figure 6: Maximum Allowable Case Temperature

vs. RMS On-State Current

RMS On-State Current [I

T(RMS)] - (Amps)

0

3

6

9

12

15

18

04

8121620

70

80

90

100

110

120

130

140

150

05

10

15

20

RMS On - State Current[IT(RMS)]Amps

SJxx20Rx

SJxx20Nx

SJxx20Lx

Figure 7: Maximum Allowable Case Temperature

vs. Average On-State Current

Average On - State Current[I T(AVE)]Amps

70

80

90

100

110

120

130

140

150

02468

10

12

14

SJxx20Rx

SJxx20Nx

SJxx20Lx

Instantaneous On-state Voltage (v

T) – Volts

0

10

20

30

40

50

60

0.60.7

0.80.9

1.01.1

1.21.3

1.41.5

1.6

20 Amps High Junction Temperature SCRs

Figure 8: Peak Capacitor Discharge Current

1000

10

100

0.5

1.010.0

50.0

Pulse Current Duration (t

W) - ms

I

TRM

t

W

SJxx20xx Series

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