CYStech Electronics Corp.
Surface Mount Transient Voltage Suppressors
Peak Pulse Power 200W Working Voltage 5.0 to 190V
SMF5.0A thru SMF190CA
Spec. No. : C296SP
Issued Date : 2011.06.20
Revised Date :
Page No. : 1/5
Features
• Glass passivated chip
• Uni and Bidirectional unit
• Excellent clamping capability
• 200W peak pulse power capability with a 10/1000μs waveform, repetition rate (duty cycle) : 0.01%
• Very-fast response time
• Low leakage
• RoHS compliant
Mechanical Data
• Case : Molded plastic
• Terminals: Pure tin plated, solderable per MIL-STD-750 method 2026
• Polarity: For uni-directional types, the band denotes the cathode, which is positive with respective to the anode
under normal TVS operation
• Mounting position : Any
• Epoxy: UL 94V-0 rate flame retardant
Devices for bidirectional applications
For bi-directional devices, use suffix CA (e.g. SMF10CA). Electrical characteristics apply in both directions.
Maximum Ratings and Characteristics(TA=25°C, unless otherwise noted)
Parameter
Symbol
Value
Unit
Peak pulse power dissipation with a 10/1000μs waveform (Note 1)
PPP
Peak pulse power dissipation with a 8/20μs waveform (Note 1)
PPP
Peak pulse current with a 10/1000μs waveform (Note 1)
IPP
Peak forward surge current, 8.3ms single half sine wave
uni-directional only (Note 2)
IFSM
Power dissipation on infinite heatsink at TL=75°C
PD
200
W
1000
W
See next table
A
20
A
0.4
W
Maximum instantaneous forward voltage at 25A for
unidirectional only (Note 4)
Operating junction and storage temperature range
VF
3.5
V
TJ;TSTG
-55 ~ +150
°C
Notes: 1.Non-repetitive current pulse, per Fig. 5 and derated above TA=25°C per Fig. 1.
2.Mounted on 8.3ms single half sine-wave or equivalent square wave, duty cycle=4 pulses per minute maximum.
SMF5.0A thru SMBJ190CA
CYStek Product Specification