SMP50 / SMTPA / TPA
Trisil™ for telecom equipment protection
Features
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Bidirectional crowbar protection
Voltage range from 62 V to 320 V
Low capacitance from 12 pF to 20 pF @ 50 V
Low leakage current : I
R
= 2 µA max
Holding current: I
H
= 150 mA min
Repetitive peak pulse current :
I
PP
= 50 A (10/1000 µs)
SMB
SMA
(JEDEC DO-214AC) (JEDEC DO-214AA)
SMTPA
SMP50
Main applications
Telecommunication equipment such as:
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Analog and digital line cards (xDSL, T1/E1,
ISDN, ...)
Terminals (phone, fax, modem, ...) and central
office equipment
DO-15
TPA
Description
These Trisil series have been designed to protect
telecommunication equipment against lightning
and transient induced by AC power lines.
They are available in SMA, SMB and DO-15
packages.
Order codes
Part Number
SMP50-xxx
TPAxxx
SMTPAxxx
See
Marking
Benefits
Trisils are not subject to ageing and provide a fail
safe mode in short circuit for a better protection.
They are used to help equipment to meet various
standards such as UL1950, IEC950 / CSA C22.2,
UL1459 and FCC part 68.
Trisils have UL94 V0 approved resin.
SMA and SMB packages are JEDEC registered
(DO-214AC and DO-214AA).
Trisils are UL497B approved (file: E136224).
TM: TRISIL is a trademark of STMicroelectronics
Schematic Diagram
June 2007
Rev 3
1/11
11
STMICROELECTRONICS [ STMICROELECTRONICS ]
