DYNEX DF45216, DF45214, DF45212, DF45210, DF45208 Datasheet

DF452

DF452

Fast Recovery Diode

Replaces March 1998 version, DS4213-3.2

DS4213-4.0 January 2000

APPLICATIONS

■Induction Heating

■A.C. Motor Drives

■Inverters And Choppers

■Welding

■High Frequency Rectification

■UPS

FEATURES

■Double side cooling

■High surge capability

■Low recovery charge

VOLTAGE RATINGS

Type Number	Repetitive Peak	Conditions
	Reverse Voltage
	VRRM
	V
DF452 16	1600	VRSM = VRRM + 100V
DF452 14	1400
DF452 12	1200
DF452 10	1000
DF452 08	800
DF452 06	600

KEY PARAMETERS

VRRM

1600V

IF(AV)

540A

IFSM

5000A

Qr

35μC

trr

3.2μs

Outline type code: M771.

See Package Details for further information.

CURRENT RATINGS

Symbol	Parameter			Conditions			Max.	Units
Double Side Cooled
I	Mean forward current	Half wave resistive load, T			case	= 65oC	540	A
F(AV)
I	RMS value	T	case	= 65oC			628	A
F(RMS)
I	Continuous (direct) forward current	T	case	= 65oC			-	A
F
Single Side Cooled (Anode side)
IF(AV)	Mean forward current	Half wave resistive load, Tcase = 65oC					-	A
I	RMS value	T	case	= 65oC			-	A
F(RMS)
I	Continuous (direct) forward current	T	case	= 65oC			-	A
F

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DF452

SURGE RATINGS

	Symbol	Parameter	Conditions	Max.	Units
	IFSM	Surge (non-repetitive) forward current	10ms half sine; with 0% VRRM, Tj = 150oC	5.0	kA
	I2t	I2t for fusing		125 x 103	A2s
	IFSM	Surge (non-repetitive) forward current	10ms half sine; with 50% VRRM, Tj = 150oC	-	kA
	I2t	I2t for fusing		-	A2s

THERMAL AND MECHANICAL DATA

	Symbol	Parameter	Conditions		Min.	Max.	Units
			Double side cooled	dc	-	0.07	oC/W
	R	Thermal resistance - junction to case		Anode dc	-	0.133	oC/W
	th(j-c)		Single side cooled
				Cathode dc	-	0.147	oC/W
			Clamping force 5.0kN	Double side	-	0.02	oC/W
	Rth(c-h)	Thermal resistance - case to heatsink
			with mounting compound	Single side	-	0.04	oC/W
	Tvj	Virtual junction temperature	Forward (conducting)		-	150	oC
	Tstg	Storage temperature range			-55	150	oC
	-	Clamping force			4.5	5.5	kN

CHARACTERISTICS

Symbol		Parameter				Conditions		Typ.	Max.	Units
V		Forward voltage	At 750A peak, T			case	= 25oC	-	1.6	V
	FM
I	RRM	Peak reverse current	At V	RRM	, T = 150oC			-	40	mA
					case
	trr	Reverse recovery time						3.2	-	μs
QRA1		Recovered charge (50% chord)	IF = 200A, diRR/dt = 20A/μs					-	35	μC
IRM		Reverse recovery current	Tcase = 125oC, VR = 100V					-	43	A
	K	Soft factor						1.8	-	-
VTO		Threshold voltage	At Tvj = 150oC					-	1.0	V
	rT	Slope resistance	At Tvj = 150oC					-	0.8	mΩ
V		Forward recovery voltage	di/dt = 1000A/μs, T = 125oC					-	-	V
	FRM						j

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DF452

DEFINITION OF K FACTOR AND QRA1

QRA1 = 0.5x IRR(t1 + t2)

dIR/dt	t2	k = t1/t2
t1		τ
0.5x IRR
IRR

CURVES

F

Instantaneous forward current I - (A)

3000 Measured under pulse conditions

2500

2000

Tj = 150˚C

1500

Tj = 25˚C

1000

500
1.0	1.5	2.0	2.5	3.0

Instantaneous forward voltage VF - (V)

Fig.1 Maximum (limit) forward characteristics

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