FEATURES	TYPICAL APPLICATIONS
1). Diffused diode	1). Converters
2). Wide current range	2). Power supplies
3). High voltage ratings up to 1600V	3). Machine tool controls
4). High surge current capabilities	4). High power drives
5). Stud cathode and stud anode version	5). Medium traction applications
MAJOR RATINGS AND CHARACTERISTICS
Parameters 250U(R) Unit IF(AV)   250 A @ TC 145 ℃ IF(RMS)   390 A IFSM @ 50Hz 6550 A @ 60Hz 6850 A I2t @ 50Hz 214 A2s @ 60Hz 195 A2s VRRM typical 1200 and 1600 V TJ typical - 40 to 200 μs
ELECTRICAL SPECIFICATIONS
1). Voltage Ratings

Type number	Voltage Code	VRRM, maximum  repetitivepeak reverse voltage	VRSM, maximum  non-repetitive peak reverse voltage	IRRM max. TJ = 175℃
		V	V	mA
250U(R)	10	100	200	60
	20	200	300
	40	400	500
	60	600	720
	80	800	960
	100	1000	1200
	120	1200	1300
	160	1600	1700

 
















2). Forward Conduction

Parameters		250U(R)	Unit	Conditions
IF(AV)	Max. average forward current @ Case temperature	250	A	180° conduction, half sine wave
		145	℃
IF(RMS)	Max. RMS forward current	390	A	Dc @ 110℃
IFSM	Max. peak, one-cycle forward, non-repetitive surge current	6550	A	t = 10ms	No voltage	Sinusoidal half wave,Initial TJ = TJ max.
		6850		t = 8.3ms	reapplied
		5500		t = 10ms	100% VRRM
		5750		t = 8.3ms	reapplied
I2t	Maximum I2t for fusing	214	A2s	t = 10ms	No voltage
		195		t = 8.3ms	reapplied
		151		t = 10ms	100% VRRM
		138		t = 8.3ms	reapplied
I2√t	Maximum I2√t for fusing	2140	A2√S	t = 0.1 to 10ms, no voltage reapplied
VF(TO)1	Low level value of threshold voltage	0.61	V	(16.7% x π x IF(AV) < I < π x IF(AV)), TJ = TJ max.
VF(TO)2	High level value of threshold voltage	0.83		(I > π x IF(AV)), TJ = TJ max.
rf1	Low level value of forward slope resistance	0.75	mΩ	(16.7% x π x IF(AV) < I < π x IF(AV)), TJ = TJ max.
rf2	High level value of forward slope resistance	0.49		(I > π x IF(AV)), TJ = TJ max.
VFM	Max. forward voltage drop	1.30	V	Ipk= 630A, TJ = 25℃, tp = 10ms rectangular wave
TJ	Max. junction operating temperature range	-40 to 200	℃
Tstg	Max. storage temperature range	-40 to 200
RthJC	Max. thermal resistance, junction to case	0.18	K/W	DC operation
RthCS	Max. thermal resistance, case to heatsink	0.08		Mounting surface, smooth, flat and greased
T	Max. allowed mounting torque ±10%	37	Nm	Not lubricated threads
		28		Lubricated threads
wt	Approximate weight	250	g
	Case style	DO-9		See Outline Table

ΔR_thJC Conduction
(The following table shows the increment of thermal resistence R_thJC when devices operate at different conduction angles than DC)

Conduction angle	Sinusoidal conduction	Rectangular conduction	Units	Conditions
180°	0.020	0.015	K/W	TJ = TJ max.
120°	0.024	0.025
90°	0.031	0.034
60°	0.045	0.047
30°	0.077	0.077

PERFORMANCE CURVES FIGURE

Fig.1 – CurrentRatings Characteristic	Fig.2 - CurrentRatings Characteristic
Fig.3 – Forward Power Loss Characteristics
Fig.4 – Forward Power Loss Characteristics
Fig.5 –Maximum Non-Repetitive Surge Current	Fig.6 –Maximum Non-Repetitive Surge Current
Fig.7 –  Forward Voltage Drop Characteristics
Fig.8 –Thermal Impedance ZthJC Characteristics

OUTLINE