Littelfuse Dxx25L User Manual

Teccor® brand Thyristors

15 / 20 / 25 Amp Rectifiers

Dxx15L & Dxx20L & Dxx25L Series

Description

Silicon rectifiers that are excellent for DC phase control
applications with motor loads.

Isolated mounting tab allows for use in circuits with
common anode or common cathode connections.

Features & Benefits

Agency Approval

Agency Agency File Number

®

L Package : E71639

Schematic Symbol

AK

Absolute Maximum Ratings

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t(MBTToQBTTJWBUFE

t4VSHFDBQBCJMJUZVQUP

350 A

junctions

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1000 V

Applications

Typical applications are AC to DC solid-state switches for
industrial power tools, exercise equipment, white goods,
and commercial appliances.

Internally constructed isolated package is offered for ease
of heat sinking with highest isolation voltage.

Main Features

Symbol Value Unit

I

T(RMS)

V

RRM

15 / 20 / 25 A

400 to 1000 V

Symbol Parameter

I

F(RMS)

I

F(AV)

I

FSM

2

tI

I

T

stg

T

J

Note: xx = voltage

Dxx15L & Dxx20L & Dxx25L Series

RMS forward current

Average forward current 9.5 12.7 15.9 A

Peak non-repetitive surge current

2

t Value for fusing tp = 8.3 ms 210 374 508 A2s

Storage temperature range -40 to 150

Operating junction temperature range -40 to 125

Test Conditions

Dxx15L: T

Dxx20L/Dxx25L: TC = 80°C

= 85°C

C

single half cycle; f = 50Hz;

T

(initial) = 25°C

J

single half cycle; f = 60Hz;

(initial) = 25°C

T

J

379

Value

Dxx15L Dxx20L Dxx25L

15 20 25 A

188 255 300

225 300 350

Specifications are subject to change without notice.

©2013 Littelfuse, Inc

Unit

A

°C

°C

Revised: 09/23/13

Teccor® brand Thyristors

15 / 20 / 25 Amp Rectifiers

Electrical Characteristics (T

= 25°C, unless otherwise specified)

J

Symbol Parameter Test Conditions Value Unit

t

rr

Reverse-recovery Time IF=0.9A, IR=1.5A TYP. 4 μs

Static Characteristics

Symbol Test Conditions Value Unit

15A Device IT = 30A; tp = 380μs

V

FM

25A Device I

= 40A; tp = 380μs

T

= 50A; tp = 380μs

T

400-600V

MAX. 1.6 V20A Device I

10

TJ = 25°C

800-1000V 20

I

RM

V

RRM

= 100°C

T

J

= 125°C 400-800V 1000

T

J

400-800V 500

MAX.

1000V 3000

Thermal Resistances

Symbol Parameter Value Unit

Dxx15L 2.85

R

(J-C)

Note: xx = voltage

Junction to case (AC)

Dxx25L 2.50

°C/WDxx20L 2.55

μA

Figure 1: On-State Current vs. On-State

Voltage (Typical)

160

TJ = 25°C

140

) – Amps

F

120

100

80

60

40

20

Instantaneous Forward Current (i

0

0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8

Instantaneous Forward Vol tage (vF) – Vol ts

Dxx25L

Dxx20L

Dxx15L

Figure 2: Power Dissipation vs. RMS On-State

Current (Typical)

20

Dxx15L

Dxx20L

Single p ulse r ectification
60Hz sine wave

] - Amps

F(AV)

16

12

] - (Watts)

8

F(AV)

[P

4

Average Forward Power Dissipation

0

0246810121

Average Forwa rd Current [I

Dxx25L

416

Dxx15L & Dxx20L & Dxx25L Series

380

Specifications are subject to change without notice.

©2013 Littelfuse, Inc

Revised: 09/23/13