1n4933 thru 1n4937 fast switching plastic rectifier reverse voltage - 50 to 600 volts forward current - 1.0 ampere features plastic package has underwriters laboratory flammability classification 94v-0 fast switching for high efficiency construction utilizes void-free molded plastic technique 1.0 ampere operation at t a =75c with no thermal runaway high temperature soldering guaranteed: 250c/10 seconds, 0.375 (9.5mm) lead length, 5 lbs. (2.3kg) tension mechanical data case: jedec do-204al molded plastic body terminals: plated axial leads, solderable per mil-std-750, method 2026 polarity: color band denotes cathode end mounting position: any weight: 0.012 ounce, 0.34 gram maximum ratings and electrical characteristics ratings at 25c ambient temperature unless otherwise specified. symbols 1n4933 1n4934 1n4935 1n4936 1n4937 units *maximum repetitive peak reverse voltage v rrm 50 100 200 400 600 volts *maximum rms voltage v rms 35 70 145 280 420 volts *maximum dc blocking voltage v dc 50 100 200 400 600 volts *maximum average forward rectified current i (av) 1.0 amp 0.375" (9.5mm) lead length at t a =75c *peak forward surge current 8.3ms single half sine-wave superimposed on i fsm 30.0 amps rated load (jedec method) at t a =75c *maximum instantaneous forward voltage at 1.0a v f 1.2 volts *maximum dc reverse current t a =25c 5.0 at rated dc blocking voltage t a =100c i r 100.0 m a *maximum reverse recovery time (note 1) t j =25c t rr 200.0 ns *maximum reverse recovery current (note 1) i rm 2.0 amps typical junction capacitance (note 2) c j 12.0 pf typical thermal resistance (note 3) r q ja 55.0 c/w r q jl 25.0 *operating junction and storage temperature range t j , t stg -50 to +150 c notes: (1) reverse recovery test conditions: i f =1.0a, v r =30v, di/dt=50a/ m s, and i rr =10% i rm for measurement of t rr (2) measured at 1.0 mhz and applied reverse voltage of 4.0 volts (3) thermal resistance from junction to ambient and from junction to lead at 0.375" (9.5mm) lead length, p.c.b. mounted *jedec registered values 4/98 0.107 (2.7) 0.080 (2.0) 0.034 (0.86) 0.028 (0.71) dia. 1.0 (25.4) min. 1.0 (25.4) min. 0.205 (5.2) 0.160 (4.1) dia. do-204al dimensions in inches and (millimeters)
0 25 50 75 100 125 150 175 0 0.2 0.4 0.6 0.8 1.0 110100 0 10 20 30 1.8 0.4 0.6 1.0 1.2 1.4 1.6 2.0 0.01 0.1 1 10 20 0.1 1 10 100 1 10 100 0.01 0.1 1 10 100 0.1 1 10 100 0.8 20 60 80 100 0.01 1 10 100 0.1 40 0 ratings and characteristic curves 1n4933 thru 1n4937 fig.1 - forward current derating curve ambient temperature, c average forward rectified current, amperes fig. 5 - typical junction capacitance peak forward surge current, amperes number of cycles at 60 h z t j =25c f=1.0 mhz vsig=50mvp-p fig. 2 - maximum non-repetitive peak forward surge current reverse voltage, volts junction capacitance, pf fig. 3 - typical instantaneous forward characteristics instantaneous forward voltage, volts fig. 4 - typical reverse characteristics percent of rated peak reverse voltage, % instantaneous reverse current, microamperes instantaneous forward current amperes 1.0 cycle t a =75c 8.3ms single half sine-wave (jedec method) t j =25c pulse width=300 m s 1% duty cycle t j =100c capacitive loads i (pk) 5.0 i (av) = 10 20 = p t j =25c i (pk) i (av) 0.375? (9.5mm) lead length fig. 6 - typical transient thermal impedance t, pulse duration, sec. transient thermal impedance, c/w
|
