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/circle6 /circle6 /circle6 High Current Capability /circle6 /circle6 /circle6 P l a s t i c M a t e r i a l – U L R e c o g n i t i o n F l a m m a b i l i t y M e c ha n i c a l D a t a /circle6 /circle6 Term inals: Plated Leads Solderable per /circle6 P o l a r i t y : A s M a r k e d o n C a s e /circle6 /circle6 Mounting Position: Any /circle6 Marking: Type Number Maximum Ratings and Electrical Characteristics @TA=25°C unless otherwise specified Single Phase, half wave, 60Hz, resistive or inductive load. For capacitive load, derate current by 20%. Characteristic Symbol DB257 Unit Peak Repet itive Reverse Voltage Working Peak Reverse Voltage DC Blocking Voltage VRRM VRWM VR 50 100 200 400 600 800 1000 V RMS Revers e V oltage VR(RMS) 35 70 140 280 420 560 700 V A verage Rect ified Output Current @T A = 40°C IO Non-Repetit i ve Peak Forward Surge Current 8.3ms Single half sine-wave superimposed on rated load (JEDEC Method) IFSM 60 A Forward V ol tage per element @I F FM 1.1 V Peak R e v e r s e C u r r e n t @ TA = 25°C A t Rat ed DC Blocking Voltage @T A = 125°C IRM 5.0 500 µA Typi c al Junction Capacitance per element (Note 1) C j 25 pF Typi c al Thermal Resistance per leg (Note 2) RθJA RθJL 15 °C/W Operati ng and Storage Temperature Range Tj, TSTG -65 to +150 °C Note: 1. M easured at 1.0 MHz and applied reverse voltage of 4.0V D.C. 2. Mounted on PC board with 13mm 2 copper pad. 1 of 2 DB251 - DB257 DE H JK L M BA C G DB Dim Min Max A 6.20 6.50 B 6.80 8.40 C 7.24 8.70 D 0.20 0.38 E G H 1.30 J 3.80 4.90 K L M All Dimensions in mm 0.90 1.40 5.00 5.20 0.45 0.58 8.12 8.80 2.15 3.40 DB252DB251 DB253 DB254 DB255 DB256 ! Lead Fre e: For RoHS / Lead Free Version www.senocn.com Z ibo Seno Electronic Engineering Co., Ltd. .5A V = 2 Alldatasheet
0.01 0.1 1.0 I , INSTANT ANEOUS FORWARD CURRENT (A) F V , INSTANTANEOUS FORWARD VOLTAGE (V) Fig. 2 Typ Forward Characteristics (per element) F T = 25°C P ulse Width = 300µs 2% duty cycle j 100 1 10 100 C , CAP A CITANCE (pF) J V , REVERSE VOLTAGE (V) Fig. 4 Typ Junction Capacitance (per element) R T = 25°c f = 1.0 Mhz V = 50 mV p-p j sig 0.01 0.1 1.0 100 2004 0 6 0 80 100 120 140 I , INST ANT ANEOUS REVERSE CURRENT (µA) R PERCENT OF RATED PEAK REVERSE VOLTAGE (%) Fig. 5 Typ Reverse Characteristics (per element) T = 125°Cj T = 25°Cj DB251 - DB257 DB251 – DB257 1.0 2.0 11 0 100 I , P E AK FORWARD SURGE CURRENT (A) FSM NUMBE R OF CYCLES AT 60 Hz Fig. 3 Max Non -Repetitive Peak Forward Surge Curren t Single half-sine-Wave (JEDEC Method) 40 60 80 100 120 140 I , A VERAGE FORWARD CURRENT (A) (AV) T , AMBIENT TEMPERA TURE (°C) Fig. 1 Output Current Derating Curve A
60 Hz Resistive
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