SMTPA270 STMicroelectronics

SMP50 / SMTPA / TPA Trisil for telecom equipment protection Features 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 = 2 A max R SMB SMA (JEDEC DO-214AA) Holding current: I = 150 mA min (JEDEC DO-214AC) H SMTPA SMP50 Repetitive peak pulse current : I = 50 A (10/1000 s) PP Main applications Telecommunication equipment such as: Analog and digital line cards (xDSL, T1/E1, DO-15 ISDN, ...) TPA Terminals (phone, fax, modem, ...) and central office equipment Order codes Description Part Number Marking These Trisil series have been designed to protect telecommunication equipment against lightning SMP50-xxx and transient induced by AC power lines. See Ordering Information TPAxxx on page 9 They are available in SMA, SMB and DO-15 SMTPAxxx packages. Schematic Diagram 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 June 2007 Rev 3 1/11 www.st.com 11Characteristics SMP50 / SMTPA / TPA 1 Characteristics Table 1. Compliant with the following standards Peak Surge Required Minimum serial Waveform Current Standard Voltage peak current resistor to meet Voltage waveform (V) (A) standard () GR-1089 Core 2500 2/10 s 500 2/10 s 20 First level 1000 10/1000 s 100 10/1000 s 10 GR-1089 Core 5000 2/10 s 500 2/10 s 40 Second level GR-1089 Core 1500 2/10 s 100 2/10 s 0 Intra-building 6000 150 53 ITU-T-K20/K21 10/700 s 5/310 s 1500 37.5 0 ITU-T-K20 8000 ESD contact discharge 0 1/60 ns (IEC61000-4-2) 15000 ESD air discharge 0 4000 100 21.5 VDE0433 10/700 s 5/310 s 2000 50 0 4000 100 0 VDE0878 1.2/50 s 1/20 s 2000 50 0 4000 10/700 s 100 5/310 s 21.5 IEC61000-4-5 4000 1.2/50 s 100 8/20 s 0 FCC Part 68, lightning 1500 10/160 s 200 10/160 s 12.5 surge type A 800 10/560 s 100 10/560 s 6.5 FCC Part 68, lightning 1000 9/720 s 25 5/320 s 0 surge type B Table 2. Absolute ratings (T = 25 C) amb Symbol Parameter Value Unit 10/1000 s 50 8/20 s 150 10/560 s 55 I Repetitive peak pulse current (see Figure 1) 5/310 s 65 A PP 10/160 s 75 1/20 s 100 2/10 s 100 (1) I Fail-safe mode : maximum current 8/20 s 2.5 kA FS t = 0.2 s 16 Non repetitive surge peak on-state current t = 1 s 11.5 I A TSM (sinusoidal) t = 2 s 10 t = 15 mn 3.5 t = 16.6 ms 6.2 2 2 2 ItI t value for fusing A s t = 20 ms 6.5 T Storage temperature range -55 to 150 stg C T Maximum junction temperature 150 j T Maximum lead temperature for soldering during 10 s. 260 C L 1. in fail safe mode, the device acts as a short circuit 2/11