Vishay 25CTQ...PbF Series Data Sheet

TO-220AB

Schottky Rectifier, 2 x 15 A

FEATURES

Base

common

Anode

2

cathode

2

Common

13

cathode

Anode

• 150 °C TJ operation

• Center tap TO-220 package

• Low forward voltage drop

• High frequency operation

• High purity, high temperature epoxy
encapsulation for enhanced mechanical strength and
moisture resistance

• Guard ring for enhanced ruggedness and long term
reliability

• Lead (Pb)-free (“PbF” suffix)

• Designed and qualified for industrial level

25CTQ...PbF Series

Vishay High Power Products

Pb-free

Available

RoHS*

COMPLIANT

PRODUCT SUMMARY

I

F(AV)

V

R

2 x 15 A

35 to 45 V

The 25CTQ...PbF center tap Schottky rectifier series has
been optimized for very low forward voltage drop, with
moderate leakage. The proprietary barrier technology allows
for reliable operation up to 150 °C junction temperature.
Typical applications are in switching power supplies,
converters, freewheeling diodes, and reverse battery
protection.

MAJOR RATINGS AND CHARACTERISTICS

DESCRIPTION

SYMBOL CHARACTERISTICS VALUES UNITS

I

F(AV)

V

RRM

I

FSM

V

F

T

J

Rectangular waveform 30 A

Range 35 to 45 V

tp = 5 µs sine 990 A

15 Apk, TJ = 125 °C (per leg) 0.50 V

Range - 55 to 150 °C

VOLTAGE RATINGS

PARAMETER SYMBOL 25CTQ035PbF 25CTQ040PbF 25CTQ045PbF UNITS

Maximum DC reverse voltage V

Maximum working peak reverse voltage V

R

RWM

35 40 45 V

ABSOLUTE MAXIMUM RATINGS

PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS

Maximum average forward current
See fig. 5

Maximum peak one cycle non-repetitive
surge current per leg
See fig. 7

Non-repetitive avalanche energy per leg E

Repetitive avalanche current per leg I

* Pb containing terminations are not RoHS compliant, exemptions may apply

Document Number: 94173 For technical questions, contact: [e-mail]
Revision: 13-Aug-08 1

I

F(AV)

I

FSM

AR

50 % duty cycle at TC = 102 °C, rectangular waveform 30 A

5 µs sine or 3 µs rect. pulse

10 ms sine or 6 ms rect. pulse 250

AS

TJ = 25 °C, IAS = 3.0 A, L = 4.40 mH 20 mJ

Current decaying linearly to zero in 1 µs
Frequency limited by T

maximum VA = 1.5 x VR typical

J

Following any rated load
condition and with rated
V

applied

RRM

990

A

3A

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25CTQ...PbF Series

Vishay High Power Products

Schottky Rectifier, 2 x 15 A

ELECTRICAL SPECIFICATIONS

PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS

15 A

Maximum forward voltage drop per leg
See fig. 1

V

FM

30 A 0.71

(1)

15 A

30 A 0.64

Maximum reverse leakage current per leg
See fig. 2

I

RM

Maximum junction capacitance per leg C

Typical series inductance per leg L

TJ = 25 °C

(1)

T

= 125 °C 70

J

VR = 5 VDC (test signal range 100 kHz to 1 MHz) 25 °C 900 pF

T

Measured lead to lead 5 mm from package body 8.0 nH

S

Maximum voltage rate of change dV/dt Rated V

T

= 25 °C

J

= 125 °C

T

J

V

= Rated V

R

R

R

0.56

0.50

1.75

10 000 V/µs

Note

(1)

Pulse width < 300 µs, duty cycle < 2 %

THERMAL - MECHANICAL SPECIFICATIONS

PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS

Maximum junction and
storage temperature range

Maximum thermal resistance,
junction to case per leg

Maximum thermal resistance,
junction to case per package

Typical thermal resistance,
case to heatsink

Approximate weight

Mounting torque

minimum 6 (5)

maximum 12 (10)

Marking device Case style TO-220AB 25CTQ045

T

, T

J

Stg

DC operation
See fig. 4

R

thJC

- 55 to 150 °C

3.25

DC operation 1.63

R

thCS

Mounting surface, smooth and greased 0.50

2.0 g

0.07 oz.

kgf · cm

(lbf · in)

V

mA

°C/W

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Document Number: 94173

2 Revision: 13-Aug-08

25CTQ...PbF Series

Schottky Rectifier, 2 x 15 A

1000

100

10

1

0.1

- Instantaneous Forward Current (A)

F

I

0.4 1.6

0.20 0.6 1.0 1.4 2.0

VFM - Forward Voltage Drop (V)

Fig. 1 - Maximum Forward Voltage Drop Characteristics

TJ = 150 °C
T

J

T

J

(Per Leg)

= 125 °C
= 25 °C

1.80.8 1.2

1000

Vishay High Power Products

1000

100

- Reverse Current (mA)

R

0.01

I

0.001

TJ = 150 °C

1

0

TJ = 125 °C

525354515

10

0.1

Fig. 2 - Typical Values of Reverse Current vs.

TJ = 100 °C

TJ = 75 °C

TJ = 50 °C

TJ = 25 °C

10 20 30 40

VR - Reverse Voltage (V)

Reverse Voltage (Per Leg)

TJ = 25 °C

- Junction Capacitance (pF)

T

C

100

10 30 40

020 50

VR - Reverse Voltage (V)

Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage (Per Leg)

10

1

0.1

0.01

- Thermal Impedance (°C/W)

thJC

Z

0.001

0.00001 0.0001 0.001 0.01 0.1

Single pulse

(thermal resistance)

t1 - Rectangular Pulse Duration (s)

Fig. 4 - Maximum Thermal Impedance Z

D = 0.50
D = 0.33
D = 0.25
D = 0.17
D = 0.08

Notes:

1. Duty factor D = t

2. Peak TJ = PDM x Z

1 10 100

Characteristics (Per Leg)

thJC

P

DM

t

1

t

2

1/t2

+ T

thJC

C

Document Number: 94173 For technical questions, contact: [e-mail]

www.vishay.com

Revision: 13-Aug-08 3

25CTQ...PbF Series

Vishay High Power Products

160

25CTQ

(DC) = 3.25 °C/W

R

150

140

130

120

110

Allowable Case Temperature (°C)

100

025

515

I

- Average Forward Current (A)

F(AV)

Fig. 5 - Maximum Allowable Case Temperature vs.

Average Forward Current (Per Leg)

thJC

DC

1000

Schottky Rectifier, 2 x 15 A

12

10

Average Power Loss (W)

2010

Fig. 6 - Forward Power Loss Characteristics (Per Leg)

D = 0.08
D = 0.17
D = 0.25

8

D = 0.33
D = 0.50

6

4

2

0

022

I

- Average Forward Current (A)

F(AV)

DC

614

RMS limit

16 18 201210842

- Non-Repetitive Surge Current (A)

100

FSM

I

At any rated load condition
and with rated V
following surge

applied

RRM

100 1000

tp - Square Wave Pulse Duration (µs)

Fig. 7 - Maximum Non-Repetitive Surge Current (Per Leg)

L

High-speed

switch

Freewheel

diode

40HFL40S02

Current
monitor

D.U.T.

IRFP460

= 25 Ω

R

g

1000010

V

= 25 V

d

+

Fig. 8 - Unclamped Inductive Test Circuit

www.vishay.com For technical questions, contact: [e-mail]

Document Number: 94173

4 Revision: 13-Aug-08

25CTQ...PbF Series

Schottky Rectifier, 2 x 15 A

ORDERING INFORMATION TABLE

Device code

25 C T Q 045 PbF

1 - Current rating (25 = 25 A)

2 - Circuit configuration:

3 - Package:

4 - Schottky “Q” series

5 - Voltage ratings

6

51324

C = Common cathode

T = TO-220

- None = Standard production

PbF = Lead (Pb)-free

Vishay High Power Products

6

035 = 35 V
040 = 40 V
045 = 45 V

Tube standard pack quantity: 50 pieces

LINKS TO RELATED DOCUMENTS

Dimensions http://www.vishay.com/doc?95222

Part marking information http://www.vishay.com/doc?95225

SPICE model http://www.vishay.com/doc?95285

Document Number: 94173 For technical questions, contact: [e-mail]
Revision: 13-Aug-08 5

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DIMENSIONS in millimeters and inches

13

2

D

D1

H1

Q

13

2

C

C

D

D

3 x b23 x b

(b, b2)

b1, b3

(H1)

D2

Detail B

C

A

B

L

e1

Lead tip

E

E2

Ø P

0.014 AB

M M

0.015 AB

MM

Seating

plane

c

A2

A1

A

A

A

Lead assignments

Diodes

1. - Anode/open

2. - Cathode

3. - Anode

Conforms to JEDEC outline TO-220AB

(6)

(6)

(7)

(6)

(7)

e

2 x

L1

(2)

Detail B

Section C - C and D - D

View A - A

Base metal Plating

(4)

(4)

c1

c

(6)

Thermal pad

(E)

E1

(6)

Outline Dimensions

Vishay Semiconductors

TO-220AB

SYMBOL

A 4.25 4.65 0.167 0.183 E 10.11 10.51 0.398 0.414 3, 6
A1 1.14 1.40 0.045 0.055 E1 6.86 8.89 0.270 0.350 6
A2 2.56 2.92 0.101 0.115 E2 - 0.76 - 0.030 7

b 0.69 1.01 0.027 0.040 e 2.41 2.67 0.095 0.105
b1 0.38 0.97 0.015 0.038 4 e1 4.88 5.28 0.192 0.208
b2 1.20 1.73 0.047 0.068 H1 6.09 6.48 0.240 0.255 6, 7
b3 1.14 1.73 0.045 0.068 4 L 13.52 14.02 0.532 0.552

MILLIMETERS INCHES
MIN. MAX. MIN. MAX. MIN. MAX. MIN. MAX.

c 0.36 0.61 0.014 0.024 L1 3.32 3.82 0.131 0.150 2
c1 0.36 0.56 0.014 0.022 4 Ø P 3.54 3.73 0.139 0.147

D 14.85 15.25 0.585 0.600 3 Q 2.60 3.00 0.102 0.118
D1 8.38 9.02 0.330 0.355  90° to 93° 90° to 93°
D2 11.68 12.88 0.460 0.507 6

Notes

(1)

Dimensioning and tolerancing as per ASME Y14.5M-1994

(2)

Lead dimension and finish uncontrolled in L1

(3)

Dimension D, D1 and E do not include mold flash. Mold flash
shall not exceed 0.127 mm (0.005") per side. These dimensions
are measured at the outermost extremes of the plastic body

(4)

Dimension b1, b3 and c1 apply to base metal only

(5)

Controlling dimensions: inches

(6)

Thermal pad contour optional within dimensions E, H1, D2 and
E1

Document Number: 95222 For technical questions within your region, please contact one of the following: www.vishay.com
Revision: 08-Mar-11 [e-mail]

NOTES SYMBOL

, [e-mail], [e-mail] 1

(7)

(8)

Dimensions E2 x H1 define a zone where stamping and
singulation irregularities are allowed
Outline conforms to JEDEC TO-220, except A2 (maximum) and
D2 (minimum) where dimensions are derived from the actual
package outline

MILLIMETERS INCHES

NOTES

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