Vishay 121NQ045PBF Data Sheet

HALF-PAK (D-67)

PRODUCT SUMMARY

I

F(AV)

V

R

Vishay High Power Products

Schottky Rectifier, 120 A

FEATURES

Lug terminal

anode

Base

cathode

120 A

45 V

• 175 °C TJ operation

• Low forward voltage drop

• High frequency operation

• Guard ring for enhanced ruggedness and long term
reliability

• Lead (Pb)-free

• Designed and qualified for industrial level

DESCRIPTION

The 121NQ.. high current Schottky rectifier module series
has been optimized for low reverse leakage at high
temperature. The proprietary barrier technology allows
for reliable operation up to 175 °C junction temperature.
Typical applications are in high current switching power
supplies, plating power supplies, UPS systems, converters,
freewheeling diodes, welding, and reverse battery
protection.

121NQ045PbF

RoHS

COMPLIANT

MAJOR RATINGS AND CHARACTERISTICS

SYMBOL CHARACTERISTICS VALUES UNITS

I

F(AV)

V

RRM

I

FSM

V

F

T

J

Rectangular waveform 120 A

45 V

tp = 5 µs sine 16 000 A

120 Apk, TJ = 125 °C 0.6 V

Range - 55 to 175 °C

VOLTAGE RATINGS

PARAMETER SYMBOL 121NQ045PbF UNITS

Maximum DC reverse voltage V

Maximum working peak reverse voltage V

R

RWM

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
See fig. 7

Non-repetitive avalanche energy E

Repetitive avalanche current I

I

F(AV)

I

FSM

AR

50 % duty cycle at TC = 137 °C, rectangular waveform 120 A

5 µs sine or 3 µs rect. pulse

10 ms sine or 6 ms rect. pulse 2000

TJ = 25 °C, IAS = 13 A, L = 1 mH 81 mJ

AS

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

RRM

applied

16 000

A

13 A

Document Number: 94127 For technical questions, contact: [e-mail]
Revision: 25-Apr-08 1

www.vishay.com

121NQ045PbF

Vishay High Power Products

Schottky Rectifier, 120 A

ELECTRICAL SPECIFICATIONS

PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS

120 A

Maximum forward voltage drop
See fig. 1

V

FM

240 A 0.82

(1)

120 A

240 A 0.76

Maximum reverse leakage current
See fig. 2

Maximum junction capacitance C

Typical series inductance L

I

RM

T

S

TJ = 25 °C

T

= 125 °C 90

J

VR = 5 VDC (test signal range 100 kHz to 1 MHz) 25 °C 5200 pF

From top of terminal hole to mounting plane 7.0 nH

Maximum voltage rate of change dV/dt Rated V

T

= 25 °C

J

= 125 °C

T

J

V

= Rated V

R

R

R

0.65

0.6

10

10 000 V/µs

Note

(1)

Pulse width = 500 µs

THERMAL - MECHANICAL SPECIFICATIONS

PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS

Maximum junction and storage
temperature range

Maximum thermal resistance,
junction to case

Typical thermal resistance,
case to heatsink

Approximate weight

Mounting torque

Terminal torque

minimum

maximum 4 (35.4)

minimum 3.4 (30)

maximum 5 (44.2)

Case style HALF-PAK module

, T

T

J

Stg

R

thJC

R

thCS

DC operation
See fig. 4

Mounting surface, smooth and greased 0.05

- 55 to 175 °C

0.38

30 g

1.06 oz.

3 (26.5)

Non-lubricated threads

(lbf ⋅ in)

V

mA

°C/W

N ⋅ m

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

Document Number: 94127

2 Revision: 25-Apr-08

121NQ045PbF

1000

100

Current (A)

10

- Instantaneous Forward

F

I

1

0 0.6 1.2 1.80.3

VFM - Forward Voltage Drop (V)

T

= 175 °C

J

T

= 125 °C

J

TJ = 25 °C

0.9

Schottky Rectifier, 120 A

- Reverse Current (mA)

R

I

1.5

Vishay High Power Products

1000

100

10

0.1

0.01

0.001

1

05

TJ = 125 °C

TJ = 100 °C

TJ = 75 °C

TJ = 50 °C

TJ = 25 °C

15 25

10 20

VR - Reverse Voltage (V)

TJ = 175 °C

TJ = 150 °C

35 40 45

30

Fig. 1 - Maximum Forward Voltage Drop Characteristics Fig. 2 - Typical Values of Reverse Current vs.

Reverse Voltage

10 000

- Junction Capacitance (pF)

T

C

1000

0

VR - Reverse Voltage (V)

Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage

1

0.1

0.01

Single pulse

(thermal resistance)

- Thermal Impedance (°C/W)

thJC

Z

0.001

0.00001 0.0001 0.001 0.01

t1 - Rectangular Pulse Duration (s)

Fig. 4 - Maximum Thermal Impedance Z

TJ = 25 °C

20

D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20

40 5010 30

0.1

Characteristics

thJC

110

Document Number: 94127 For technical questions, contact: [e-mail]

www.vishay.com

Revision: 25-Apr-08 3