# SF21 - SF29 SUPER FAST RECTIFIER DIODES

PRV : 50 - 1000 Volts Io : 2.0 Amperes

FEATURES :
· High current capability
· High surge current capability
· High reliability
· Low reverse current
· Low forward voltage drop
· Super fast recovery time

MECHANICAL DATA :
· Case : D2 Molded plastic
· Epoxy : UL94V-O rate flame retardant
· Lead : Axial lead solderable per MIL-STD-202, Method 208 guaranteed
· Polarity : Color band denotes cathode end
· Mounting position : Any
· Weight : 0.465 gram

MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS

Rating at 25 ° C ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%.

RATING	SYMBOL	SF21	SF22	SF23	SF24	SF25	SF26	SF27	SF28	SF29	UNITS
Maximum Recurrent Peak Reverse Voltage	VRRM	50	100	150	200	300	400	600	800	1000	Volts
Maximum RMS Voltage	VRMS	35	70	105	140	210	280	420	560	700	Volts
Maximum DC Blocking Voltage	VDC	50	100	150	200	300	400	600	800	1000	Volts
Maximum Average Forward Current (0.375"(9.5mm) Lead Length, Ta = 55°C)	IF(AV)	2.0	2.0	2.0	2.0	2.0	2.0	2.0	2.0	2.0	Amps
Peak Forward Surge Current (8.3ms Single half sine wave)	IFSM	75	75	75	75	75	75	75	75	75	Amps
Maximum Peak Forward Voltage (IF = 2.0 A)	VF	0.95	0.95	0.95	0.95	1.7	1.7	1.7	2.2	2.2	Volts
Maximum DC Reverse Current (at Rated DC Blocking Voltage)	IR	5.0	5.0	5.0	5.0	5.0	5.0	5.0	20	20	µA
Maximum Reverse Recovery Time	Trr	35	35	35	35	35	35	35	35	35	ns
Typical Junction Capacitance	CJ	50	50	50	50	50	50	50	50	50	pf
Junction Temperature Range	TJ	-65 to +150	-65 to +150	-65 to +150	-65 to +150	-65 to +150	-65 to +150	-65 to +150	-65 to +150	-65 to +150	°C
Storage Temperature Range	TSTG	-65 to +150	-65 to +150	-65 to +150	-65 to +150	-65 to +150	-65 to +150	-65 to +150	-65 to +150	-65 to +150	°C

NOTES:
· Reverse Recovery Test Conditions: IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A.
· Measured at 1.0 MHz and applied reverse voltage of 4.0 V DC (UPDATE: MARCH 8, 2002)