Vishay MBR2045CT, MBRB2045CT, MBR2045CT-1 Data Sheet

PD-2.320 rev. B 06/99

M B R 2 0 4 5 C T

MBRB2045CT

MBR2045CT-1

SCHOTTKY RECTIFIER

20 Amp

Major Ratings and Characteristics

Characteristics		Values	Units
IF(AV) Rectangular waveform		20	A
	(Per Device)
IFRM	@ TC =135°C	20	A
	(Per Leg)
VRRM		35/45	V
IFSM	@ tp = 5 µs sine	1060	A
VF	@ 10Apk,TJ =125°C	0.57	V
TJ	range	- 65 to 150	°C

Description/Features

This center tap Schottky rectifier has been optimized for low reverse leakage at high temperature. The proprietary barrier technology allows for reliable operation up to 150° C junction temperature. Typical applications are in switching power supplies, converters, free-wheeling diodes, and reverse battery protection.

150° C T J operation

Center tap TO-220 and D2Pak packages

Low forward voltage drop

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

High frequency operation

Guard ring for enhanced ruggedness and long term reliability

Case Styles

MBR2035CT	MBRB2035CT	MBR2035CT-1
MBR2045CT	MBRB2045CT	MBR2045CT-1
TO-220	D2PAK	TO-262

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MBR2045CT, MBRB2045CT, MBR2045CT-1

PD-2.320 rev. B 06/99

Voltage Ratings

		MBR2035CT	MBR2045CT
	Parameters	MBRB2035CT	MBRB2045CT
		MBR2035CT-1	MBR2045CT-1
	VR Max. DC Reverse Voltage (V)	35	45
	VRWM Max. Working Peak Reverse Voltage (V)

Absolute Maximum Ratings

	Parameters		Values	Units	Conditions
IF(AV)	Max.AverageForward	(PerLeg)	10	A	@TC = 135° C, (Rated V R)
	Current	(Per Device)	20
IFRM	Peak Repetitive Forward		20	A	Rated VR, square wave, 20kHz
	Current	(Per Leg)			TC = 135° C
I	Non Repetitive Peak		1060		5µs Sine or 3µs	Following any rated load condition
FSM	Surge Current				Rect. pulse	and with rated V RRM applied
				A
			150		Surge applied at rated load conditions halfwave,
					single phase, 60Hz
IRRM	Peak Repetitive Reverse		1.0	A	2.0 µsec 1.0 KHz
	Surge Current

Electrical Specifications

	Parameters	Values	Units		Conditions
VFM	Max. Forward Voltage Drop	0.84	V	@ 20A		TJ = 25 °C
	(1)	0.57	V	@ 10A		TJ = 125 °C
		0.72	V	@ 20A
IRM	Max. Instantaneus Reverse Current	0.1	mA	TJ = 25 °C		Rated DC voltage
	(1)	15	mA	TJ = 125 °C
VF(TO) Threshold Voltage		0.354	V	TJ = TJ max.
rt	Forward Slope Resistance	17.6	mΩ
CT	Max. Junction Capacitance	600	pF	VR = 5VDC, (test signal range 100Khz to 1Mhz) 25°C
LS	Typical Series Inductance	8.0	nH	Measured from top of terminal to mounting plane
dv/dt	Max. Voltage Rate of Change	1000	V/ µs
	(Rated VR)

Thermal-Mechanical Specifications

(1) Pulse Width < 300µs, Duty Cycle <2%

	Parameters			Values	Units	Conditions
TJ	Max. Junction Temperature Range			-65 to 150	°C
Tstg	Max. Storage Temperature Range			-65 to 175	°C
RthJC	Max. Thermal Resistance			2.0	°C/W	DC operation
	Junction to Case	(Per Leg)
RthCS	Typical Thermal Resistance			0.50	°C/W	Mounting surface, smooth and greased
	Case to Heatsink					Only for TO-220
wt	Approximate Weight			2 (0.07)	g (oz.)
T	Mounting Torque		Min.	6 (5)	Kg-cm	Non-lubricated threads
					(Ibf-in)
			Max.	12(10)

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										MBR2045CT,			MBRB2045CT, MBR2045CT-1
																	PD-2.320 rev. B 06/99
	100												100
											<![if ! IE]> <![endif]>(mA)		10	TJ = 150°C
													1		125°C
											<![if ! IE]> <![endif]>R				100°C
											<![if ! IE]> <![endif]>- I
											<![if ! IE]> <![endif]>Current		0.1		75°C
															50°C
											<![if ! IE]> <![endif]>Reverse
													0.01		25°C
<![if ! IE]> <![endif]>(A)
<![if ! IE]> <![endif]>F													0.001
<![if ! IE]> <![endif]>I
<![if ! IE]> <![endif]>-
<![if ! IE]> <![endif]>Current						TJ = 150°C						0.0001
						TJ		= 125°C					0	5	10	15	20	25	30	35	40	45
<![if ! IE]> <![endif]>Forward															Reverse Voltage - VR					(V)
	10					T		=	25°C
													Fig. 2 - Typical Values Of Reverse Current
							J
														Vs. Reverse Voltage (Per Leg)
<![if ! IE]> <![endif]>Instantaneous
													1000
											<![if ! IE]> <![endif]>(pF)
											<![if ! IE]> <![endif]>T						TJ = 25°C
											<![if ! IE]> <![endif]>C
											<![if ! IE]> <![endif]>Junction Capacitance -
	1												100
	0.2	0.4	0.6	0.8	1	1.2			1.4	1.6	1.8		0		10	20		30		40		50
			Forward Voltage Drop - VFM (V)												Reverse Voltage - VR					(V)

Fig. 1 - Max. Forward Voltage Drop Characteristics	Fig. 3 - Typical Junction Capacitance
(Per Leg)	Vs. Reverse Voltage (Per Leg)

	10
<![if ! IE]> <![endif]>(°C/W)		D = 0.75
<![if ! IE]> <![endif]>thJC
	1	D = 0.50
<![if ! IE]> <![endif]>Z		D = 0.33
		D = 0.25
<![if ! IE]> <![endif]>Impedance
		D = 0.20					PDM
	0.1		Single Pulse				t1
							t2
<![if ! IE]> <![endif]>Thermal			(Thermal Resistance)			Notes:
						1. Duty factor D = t 1/ t 2
						2. Peak TJ = PDM x Z thJC+ TC
	0.01
	0.00001	0.0001	0.001	0.01	0.1	1	10	100

t 1 , Rectangular Pulse Duration (Seconds)

Fig. 4 - Max. Thermal Impedance ZthJC Characteristics (Per Leg)

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