DYNEX MF35-1200, MF35-600, MF35-800, MF35-1000 Datasheet

MF35

MF35

Fast Recovery Diode

Replaces March 1998 version, DS4625-3.1

DSDS4625-4.0 January 2000

APPLICATIONS

■Inverse, Parallel Or Series Connected Diode

■Power Supplies

■High Frequency Applications

FEATURES

■Glass Passivation

■High Voltage Capability

■Fast Recovery Characteristics

VOLTAGE RATINGS

Type Number	Repetitive Peak	Conditions
	Reverse Voltage
	VRRM
	V
MF35 - 1200	1200	VRSM = VRRM +100V
MF35 - 1000	1000
MF35 - 800	800
MF35 - 600	600

Lower voltage grades available.

For stud anode add suffix 'R' to type number. e.g. MF35-1200R.

KEY PARAMETERS

							VRRM	1200V
							IF(AV)	40A
							IFSM	400A
							Qr	10μC
							trr	0.2ns

Outline type code: DO5.

See Package Details for further information.

CURRENT RATINGS

Symbol	Parameter			Conditions			Max.	Units
I	Mean forward current	Half sine wave resistive load, T			case	= 65oC	40	A
F(AV)
I	RMS value	T	case	= 65oC			63	A
F(RMS)
I	Continuous (direct) forward current	T	case	= 65oC			50	A
F

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MF35

SURGE RATINGS

Symbol	Parameter	Conditions				Max.	Units
I	Surge (non-repetitive) forward current	10ms half sine; with V	RRM	≤ 10V, T	= 125oC	400	A
FSM				j
I2t	I2t for fusing	10ms half sine; Tj = 125oC				800	A2s

THERMAL AND MECHANICAL DATA

	Symbol	Parameter	Conditions	Min.	Max.	Units
	Rth(j-c)	Thermal resistance - junction to case	dc	-	0.8	oC/W
	Rth(c-h)	Thermal resistance - case to heatsink	Mounting torque 3.5Nm	-	0.2	o
			with mounting compound			C/W
	Tvj		Forward (conducting)	-	125	oC
		Virtual junction temperature
			Reverse (blocking)	-	125	oC
	Tstg	Storage temperature range		-55	125	˚C
	-	Mounting torque		3.2	3.8	Nm

CHARACTERISTICS

Symbol	Parameter			Conditions			Typ.	Max.	Units
VFM	Forward voltage	At 120A peak, Tcase = 25oC					-	2.0	V
I	Peak reverse current	At V	RRM	, T = 100oC			-	5	mA
RM				case
trr	Reverse recovery time	IF = 1A, diRR/dt = 25A/μs, Tcase			= 25˚C,		-	200	ns
		VR = 100V
QR	Recovered charge	IF = 50A, diRR/dt = 50A/μs, Tcase				= 25˚C,	-	10	μC
		VR = 100V
VTO	Threshold voltage	At Tvj = 125oC					-	1.2	V
rT	Slope resistance	At Tvj = 125oC					-	7.0	mΩ

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MF35

CURVES

	200
				Measured under pulse
- (A)									conditions
	150																	Tj		= 25˚C
current
forward
	100																										Tj			= 125˚C
Instantaneous
	50
	0
				1.0																2.0										3.0
	0

Instantaneous forward voltage - (V)

Fig.1 Maximum (limit) forward characteristics

(A)	400				Tcase = 125˚C
-
current
					VR = VRRM
	350
forward
	300
sinewave
	250
half
Peak	200	2	3	4 5	10	50
	1
			Cycles at 50Hz
			Duration

Fig.3 Surge (non-repetitive) forward current vs time

						80
											Tcase = 25˚C
				- (V)		60																																	95%
				voltage
																																								5%
				forwardTransient		40
						20
						0
												200								400					600								800						1000								1200
						0
												Rate of rise of forward current - (A/µs)
				Fig.2 Forward recovery voltage vs rate of rise of forward
																							voltage
˚C/W-	1.00
	0.75
																																																				d.c.
impedance	0.50
Thermal
	0.25
	0
												0.01													0.1														1.0								10
	0.001

Time - (s)

Fig.4 Maximum transient thermal impedance

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