SMP75 Trisil™ for telecom equipment protection Features ■ bidirectional crowbar protection ■ voltage: 8 V ■ low leakage current: I = 2 µA max R ■ holding current: I = 150 mA min H ■ repetitive peak pulse current: I = 75 A (10/1000 µs) PP SMB (JEDEC DO-214AA) Benefits ■ Trisils are not subject to ageing and provide a fail safe mode in short circuit for a better protection. Figure 1. Device configuration ■ This device can be used to help equipment to meet main standards such as UL1950, IEC 950 / CSA C22.2 and UL1459. ■ Trisils have UL94 V0 approved resin. ■ SMB package is JEDEC registered (DO-214AA). ■ Trisils comply with the following standards: – GR-1089 Core – ITU-T-K20/K21 – VDE0433 Description – VDE0878 – IEC 61000-4-5 The SMP75 is a very low voltage transient surge – FCC part 68 arrestor especially designed to protect sensitive telecommunication equipment against lightning Applications strikes and other transients. Its low voltage makes it suitable to protect low voltage transformer in Any sensitive equipment requiring protection T1/E1 and Ethernet links without saturation of the against lightning strikes and power crossing: transformer. ■ Ethernet, ■ T1/E1 TM: Trisil is a trademark of STMicroelectronics. October 2010 Doc ID 5015 Rev 5 1/9 www.st.com 9

Characteristics SMP75 1 Characteristics Table 1. I n compliance with the following standards Minimum serial Peak surge Waveform Required peak Current resistor to Standard voltage voltage current (A) waveform meet standard (V) (Ω) GR-1089 Core 2500 2/10 µs 500 2/10 µs 5 First level 1000 10/1000 µs 100 10/1000 µs 3.3 GR-1089 Core 5000 2/10 µs 500 2/10 µs 10 Second level GR-1089 Core 1500 2/10 µs 100 2/10 µs 0 Intra-building 6000 150 10 ITU-T-K20/K21 10/700 µs 5/310 µs 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 0 VDE0433 10/700 µs 5/310 µs 2000 50 0 4000 100 0 VDE0878 1.2/50 µs 1/20 µs 2000 50 0 4000 10/700 µs 100 5/310 µs 0 IEC61000-4-5 4000 1.2/50 µs 100 8/20 µs 0 FCC Part 68, lightning 1500 10/160 µs 200 10/160 µs 2.5 surge type A 800 10/560 µs 100 10/560 µs 0 FCC Part 68, lightning 1000 9/720 µs 25 5/320 µs 0 surge type B 2/9 Doc ID 5015 Rev 5

SMP75 Characteristics Table 2. A bsolute ratings (T = 25 °C) amb Symbol Parameter Value Unit 10/1000 µs 75 8/20 µs 250 10/560 µs 100 I Repetitive peak pulse current 5/310 µs 120 A PP 10/160 µs 150 1/20 µs 250 2/10 µs 250 I Fail-safe mode : maximum current (1) 8/20 µs 5 kA FS t = 0.2 s 14 t = 1 s 8 I Non repetitive surge peak on-state current (sinusoidal) A TSM t = 2 s 6.5 t = 15 mn 2 t = 16.6 ms 12 I²t I²t value for using A²s t = 20 ms 12.2 T Storage temperature range -55 to + 150 °C stg Tj Maximum junction temperature 150 °C T Maximum lead temperature for soldering during 10 s. 260 °C L 1. In fail safe mode, the device acts as a short circuit. Table 3. T hermal resistances Symbol Parameter Value Unit R Junction to ambient (with recommended footprint) 100 °C/W th(j-a) R Junction to leads 20 °C/W th(j-l) Table 4. E lectrical characteristics - definitions (T = 25 °C) amb Symbol Parameter VRM Stand-off voltage V Breakdown voltage BR V Breakover voltage BO I Leakage current RM I Peak pulse current PP I Breakover current BO I Holding current H V Continuous reverse voltage R I Leakage current at V R R C Capacitance Doc ID 5015 Rev 5 3/9

Characteristics SMP75 Table 5. E lectrical characteristics - values (T = 25 °C) amb Dynamic Static I @ V I (1) @ V I C(2) RM RM R R VBO VBO @ IBO H Order code max. max. max. max. max. typ. max. µA V µA V V V mA mA pF SMP75-8 2 6 5 8 20 15 800 50 60 1. I measured at V guaranteed V min ≥ V R R BR R 2. V = 2 V bias, V = 1 V, F = 1 MHz R RMS Figure 2. P ulse waveform Figure 3. Non repetitive surge peak on-state current versus overload duration % I ITSM(A) PP 50 100 Repetitive peak pulse current 45 F=50Hz Tj initial = 25°C tr= rise time (µs) 40 tp= pulse duration time (µs) 35 30 50 25 20 15 10 0 t 5 t(s) t t r p 0 1E-2 1E-1 1E+0 1E+1 1E+2 1E+3 Figure 4. O n-state voltage versus on-state Figure 5. Relative variation of holding current (typical values) current versus junction temperature IT(A) IH[Tj] / IH[Tj=25°C] 100 2.0 Tj=25°C 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 VT(V) 0.2 Tj(°C) 10 0.0 0 1 2 3 4 5 6 7 8 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100110120130 4/9 Doc ID 5015 Rev 5

SMP75 Characteristics Figure 6. R elative variation of breakover Figure 7. Relative variation of leakage voltage versus junction current versus reverse voltage temperature applied (typical values) VBO[Tj] /VBO[Tj=25°C] IR[Tj] / IR[Tj=25°C] 10000 1.08 1.07 1.06 1.05 1000 1.04 1.03 1.02 1.01 100 1.00 0.99 0.98 10 0.97 0.96 0.95 Tj(°C) Tj(°C) 0.94 1 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100110120130 25 50 75 100 125 Figure 8. V ariation of thermal impedance Figure 9. Relative variation of junction junction to ambient versus pulse capacitance versus reverse voltage duration applied (typical values) Zth(j-a)/Rth(j-a) C [VR] / C [VR=2V] 1.0 1.2 0.9 Printed circuit board FR4, 1.1 F =1MHz 0.8 creocpopmerm tehnicdkende spsa d= l3a5y oµumt, 1.0 VOTSjC == 2 15V°CRMS 0.9 0.7 0.8 0.6 0.7 0.5 0.6 0.4 0.5 0.4 0.3 0.3 0.2 0.2 0.1 tp(s) 0.1 VR(V) 0.0 0.0 1.E-02 1.E-01 1.E+00 1.E+01 1.E+02 1.E+03 1 10 Doc ID 5015 Rev 5 5/9

Ordering information scheme SMP75 2 Ordering information scheme Figure 10. Ordering information scheme SMP 75 - 8 Trisil surface mount Repetitive peak pulse current 75 = 75 A Voltage 8 = 8V 6/9 Doc ID 5015 Rev 5

SMP75 Package information 3 Package information ● Epoxy meets UL94, V0 ● Lead-free package In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark. T able 6. SMB Dimensions Dimensions Ref. Millimeters Inches E1 Min. Max. Min. Max. A1 1.90 2.45 0.075 0.096 D A2 0.05 0.20 0.002 0.008 b 1.95 2.20 0.077 0.087 E c 0.15 0.40 0.006 0.016 D 3.30 3.95 0.130 0.156 A1 E 5.10 5.60 0.201 0.220 C A2 L b E1 4.05 4.60 0.159 0.181 L 0.75 1.50 0.030 0.059 Figure 11. Footprint (dimensions in mm) 1.62 2.60 1.62 (0.064) (0.102) (0.064) 2.18 (0.086) 5.84 (0.23) Doc ID 5015 Rev 5 7/9

Ordering information SMP75 4 Ordering information T able 7. Ordering information Order code Marking Package Weight Base qty Delivery mode SMP75-8 L08 SMB 0.11 g 2500 Tape and reel 5 Revision history T able 8. Document revision history Date Revision Changes 19-July-2005 3 Previous issue Added ECOPACK statement and changed page layout. 02-Jan-2006 4 Minor updates to technical values in Tables 1, 2, and 4. Updated ECOPACK statement. Updated trademark 19-Oct-2010 5 statement. Updated Figure11. Removed Section 2 Test circuits. 8/9 Doc ID 5015 Rev 5

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