鈥?/div>
Mounted Position: Any
1SMA5945BT3
PLASTIC SURFACE
MOUNT ZENER
DIODES
1.5 WATTS
3.3鈥?8 VOLTS
SMA
CASE 403B鈥?1
PLASTIC
MAXIMUM RATINGS AND CHARACTERISTICS
Rating
DC Power Dissipation @ TL = 75擄C (Note 1)
Derate above 75擄C
DC Power Dissipation @ TA = 25擄C (Note 1)
Derate above 25擄C
Thermal Resistance from Junction to Lead
Thermal Resistance from Junction to Ambient
Peak Forward Surge @ TA = 25擄C, (JEDEC Method, Note 3)
Typical Ppk Dissipation @ TL < 25擄C, (Note 2, PW鈥?0/1000
碌s
per Figure 8)
Typical Ppk Dissipation @ TL < 25擄C, (Note 2, PW鈥?/20
碌s
per Figure 9)
Operating and Storage Junction Temperature Range
Symbol
PD
PD
R
胃JL
R
胃JA
IFSM
Ppk
Ppk
TJ, Tstg
Value
1.5
20
900
7.2
29
111
20
200
1000
150
Unit
Watts
mW/擄C
mW
mW/擄C
擄C/W
擄C/W
Amps
Watts
Watts
擄C
1. FR4 Board, using Motorola minimum recommended footprint, as shown in case 403B outline dimensions spec.
2. Non鈥搑epetitive current pulse.
3. Measured on 8.3 ms single half sine鈥搘ave or equivalent square wave, duty cycle = 4 pulse per minute maximum.
REV 1
漏
Motorola, Inc. 1996
1SMA5913BT3 through 1SMA5945BT3
MOTOROLA
1