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85HQ035
35V 85A Schottky Discrete Diode in a DO-203AB (DO-5) package
Bulletin PD-2.247 rev.B 11/02
International
IeaR Rectifier 85HQ... SERIES
SCHOTTKY RECTIFIER
TO-203AB (DO-5)
Major Ratings and Characteristics Description/ Features
The 85HQ Schottky rectifier series has been optimized for
Characteristics 85HQ... Units low reverse leakage at high temperature. The proprietary
barrier technology allows for reliable operation up to 175 °C
I Rectangular 85 A junction temperature. Typical applications are in switching
F(AV) f power supplies, converters, free-wheeling diodes, and re-
wave orm verse battery protection.
V range 35 to 45 V
RRM . 175°C T: operation
IFSM @tp= 5ps sine 9000 A o P'., forward voltage drop
. High frequency operation
VF @85Apk,TJ=125°C 0.62 V . Guard ring for enhanced ruggedness and long term
reliability
T, range -65to175 "C . Hermetic packaging
a: 15 (O 59)
61 / 7
(0.24) / (027)
2 --e Csi,
A AA v
,-I Cl)
V vi V
V, ‘30
m 0Q
1 ca.-;
fl +17 ( 1
'tir, l/d" ee UNF-PA
For metric devwces MG x 1
Conforms to JEDEC Outline DO-203AB (DO-5)
Dimensions in millimeters and (inches)
1
International
85HQ... Series
Bulletin PD-2.247 rev. B 11/02 IOR Rectifier
Voltage Ratings
Part number 85HQ035 85HQO40 85HQO45
VR Max. DC Reverse Voltage (V)
. 35 40 45
VRWM Max. Working Peak Reverse Voltage (V)
Absolute Maximum Ratings
Parameters 85HQ Units Conditions
IHAV) Max. Average Forward Current 85 A 50% duty cycle @ TC = 112° C, rectangularwave form
*See Fig. 5
Iss,, Max. PeakOne Cycle Non-Repetitive 9000 5ps Sine craps Rect. pulse Following _a_ny rated
. A . load condition and
SurgeCurrent *See Fig.7 1130 10ms Sine or6ms Rect. pulse with rated VRRM applied
EAS Non-RepetitiveAvalancheEnergy 114 md TJ=25°C, IAs=17Amps,l-=0.79mH
IAR RepetitiveAvalancheCurrent 17 A Currentdecayinglinearlytozeroin1 psec
Frequency limited by TJ max.VA=1.5xVR typical
Electrical Specifications
Parameters 85HQ Units Conditions
Vo, Max. Forward Voltage Drop (1) 0.72 V @ 85A T, = 25 ''C
* See Fig. 1 0.89 V @ 170A
0.62 V @ 85A TJ=125°C
0.77 V @ 170A
|RM Max. Reverse Leakage Current (1) 5 mA T J = 25 r’C
. v,, = rated VR
*See Fig.2 45 mA Tv-- 125°C
c, Max. Junction Capacitance 2600 pF VR = 5VDC, (test signal range 100Khz to 1Mhz) 25 ''C
LS Typical Series Inductance 7.5 nH Measured from top of terminal to mounting plane
dv/dt Max. Voltage Rate of Change 10000 VI us
(Rated VR)
(1) Pulse thh < 300ps, Duty Cycle < 2%
Thermal-Mechanical Specifications
Parameters 85HQ Units Conditions
T J Max. Junction Temperature Range -65to 175 "C
Tstg Max. StorageTemperature Range -65to175 ''C
Rch Max.ThermalResistanceJunction 0.83 °CNV DCoperation *See Fig.4
to Case
Rmcs Typical Thermal Resistance, Caseto 0.25 °C/W Mounting surface , smooth and greased
Heatsink
wt ApproximateWeight 15(0.53) g(oz.)
T Mounting Torque Min. 23(20) Kg-cm Non-Iubricatedthreads
Max. 46 (40) (Ibf-in)
CaseStyle DO-203AB(DO-5) JEDEC
