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Silicon Protection Circuits
Surface Mount SurgectorTM Transient Voltage Suppressors
Surgector Thyristors For Telecom Protection
Designed to suppress lightning and other transients, Surgector suppressors are primarily intended for operation on the telephone line "tip and ring" environment in order to protect telecommunications CPE and COE products in conjunction with the Littelfuse 461 series Telecom Nano2(R) fuse. These devices provide secondary protection for telecommunication equipment such as telephone, MODEM, line card and other devices subject to damage from transient over voltage events. Surgectors can be an integral part of a Telephone Line Protector Unit, meeting AC Power Cross criteria when used in association with properly selected resistor/ PTC/ fuse combinations such as the Littelfuse 461 series fuse. Littelfuse Surface Mount Surgectors are manufactured using a silicon thyristor technology, offering bidirectional voltage clamping for transients of either polarity from a single chip. The Surgector devices described in this data sheet are manufactured with the DO-214AA low profile case style and are second source equivalent parts to industry "SIDAC" types. Surface Mount Surgector Suppressors are supplied in embossed carrier tape on 330mm (13in) reels.
(R)
Features
* Rated for Telecom Industry Transient Surge Levels: - Telcordia (Bellcore) GR-1089 - ITU CCITT K.20/.21 - FCC PART 68 - UL 60950 * Low Profile Package, Compatible with PCMCIA Cards, UL-94V-0 Listed
Ordering Information
PART NUMBER B TYPES SGT0640SBT SGT0720SBT SGT2300SBT SGT2900SBT SGT3100SBT C TYPES SGT0640SCT SGT0720SCT SGT1300SCT SGT1500SCT SGT2300SCT SGT2900SCT SGT3100SCT SGT3500SCT 77 88 160 180 260 330 350 400 100 100 100 100 100 100 100 100 600 600 600 600 500 500 500 500 77 88 260 330 350 50 50 50 50 50 320 320 200 200 200 VBO (MAX) ATIBO=800MA (V) IPP(MAX) 10 x 1000s Pulse (A) IPP(MAX) 2 x 10s Pulse (A)
* Offered in the Most Common VDRM Voltage Types * Low On-State Voltage * Cross to Common Industry Types * High Minimum Holding Current
AGENCY APPROVALS: Recognized under the components program of
Underwriters Laboratories.
AGENCY FILE NUMBERS: UL E135010.
Applications
* Secondary Protection for: - DSL modem - Set Top Box - Telephone - FAX - Modem - Line Cards - SLIC - TLPU Modules * Alarm Systems * CATV Lines * Cable Modems
NOTE: T Suffix indicates Tape and Reel.
Symbol
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Silicon Protection Circuits
Surface Mount SurgectorTM Transient Voltage Suppressors
Surgector Thyristors For Telecom Protection
Absolute Maximum Ratings
Continuous Reverse Voltage, VDRM . . . . . . . . . . . . . . . . . . . . . . . . . . . .58V to 300V Transient Peak Surge Current, IPP B Types C Types 8 x 20s 400A 200A 10 x 160s 200A 150A 10 x 560s 150A 100A 10 x 1000s 100A 50A Critical Rate of Rise of Voltage, dv/dt . . . . . . . . . . . . . . . . . . . . . . . . . . 2000V/s
Thermal Information
Thermal Resistance (Typical, Note 1) JA (oC/W) J-Bend Package C Types. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 B Type.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 Maximum Storage Temperature Range. . . . . . . . . . . . . . . . . . . . .- 65oC to 150oC Maximum Junction Temperature (Plastic Package). . . . . . . . . . . . . . . . . . . . . 150oC Maximum Lead Temperature (Soldering 5s). . . . . . . . . .. . . . . . . . . . . . . . . . . 300oC
Operating Conditions
Temperature Range, (TA). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40oC to 85oC
CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. NOTE: 1. JA is measured with the component mounted on an evaluation PC board in free air.
Electrical Specifications TC = 25oC, Unless Otherwise Specified
IDRM (MAX) AT V DRM A 5 5 5 5 5 5 5 5 5 5 5 5 5 VT (MAX) AT 2 A V 5 5 5 5 5 5 5 5 5 5 5 5 5 VBO (MAX) A I BO = 800mA T (NOTE 2) V 77 88 260 330 350 77 88 160 190 260 330 350 400 IPP (MAX) FOR 10 x 1000s PULSE (NOTE 3) A 50 50 50 50 50 100 100 100 100 100 100 100 100 ITSM (NOTE 4) A 25 25 25 25 25 65 65 65 65 65 65 65 65 CO (Typ) AT 1MHz / 1VRMS,2VDC pF 80 80 30 30 30 280 280 150 150 100 70 70 55
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SILICON PROTECTION CIRCUITS
VDRM (MAX) MODEL NUMBER B TYPES SGT0640SBT SGT0720SBT SGT2300SBT SGT2900SBT SGT3100SBT C TYPES SGT0640SCT SGT0720SCT SGT1300SCT SGT1500SCT SGT2300SCT SGT2900SCT SGT3100SCT SGT3500SCT 58 63 120 140 190 250 275 300 58 63 190 250 275 V
I H (MIN) mA 150 150 150 150 150 150 150 150 150 150 150 150 150
PERCENT OF PEAK VALUE
NOTES: 2. dv/dt = 100V/s. 3. Double exponential current waveform. 4. One half cycle, 50 to 60Hz sine, non repetitive.
100 90
IT IBO IH IDRM VBO VT VDRM
50
10 O1 T T1 TIME T2
O1 = Virtual Origin of Wave T = Time From 10% to 90% of Peak T1 = Virtual Front Time = 1.25 * t T2 = Virtual Time to Half Value (Impulse Duration) Example: For an 8/20s Current Waveform: 8s = T1 = Virtual Front Time 20s = T2 = Virtual Time to Half Value
FIGURE 1. V-I CHARACTERISTICS
FIGURE 2. PEAK PULSE CURRENT TEST WAVEFORM
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Silicon Protection Circuits
Surface Mount SurgectorTM Transient Voltage Suppressors
Surgector Thyristors For Telecom Protection
TABLE 1. ELECTRICAL CHARACTERISTICS
VARIATION OF OF VBO vs TEMP TA = -40oC TO 85oC (%) (NOTE 5) -6 to +6 -6 to +6 -5 to +4 -4 to +4 -4 to +4 -6 to +6 -6 to +6 -5 to +1 -5 to +1 -5 to +4 -4 to +4 -4 to +4 -3 to +4 TYPICAL V T AT PEAK I T, T A = 25oC VOLTS (V) (NOTE 6) 4.2 at 50A 4.2 at 50A 3.2 at 50A 3.3 at 50A 3.3 at 50A 5.2 at 100A 5.2 at 100A 4.1 at 100A 4.1 at 100A 4.9 at 100A 7.2 at 100A 7.2 at 100A 7.7 at 100A VARIATION OF CO vs FREQUENCY (%) (NOTE 7) 1 1 1 1 1 1 1 1 1 1 1 1 2 MAXIMUM CRITICAL RATE OF RISE OF ON-STATE CURRENT (dl/dT) (A/ s) (NOTE 8) 120 120 120 120 120 250 250 250 250 250 250 250 250 MAXIMUM I PP FOR 2x10s WAVEFORM (A) (NOTE 9) 320 320 200 200 200 600 600 600 600 500 500 500 500
MODEL NUMBER SGT0640SBT SGT0720SBT SGT2300SBT SGT2900SBT SGT3100SBT SGT0640SCT SGT0720SCT SGT1300SCT SGT1500SCT SGT2300SCT SGT2900SCT SGT3100SCT SGT3500SCT
NOTES: 5. Typical percentage shift from normalized 25oC value (positive coefficient). 6. Typical maximum peak forward voltage drop at specified peak current. 7. Typical percentage shift with test frequency ranging from 1kHz to 1MHz/1VRMS (for two constant DC bias voltages of 0V and 50V). 8. dI/dT for leading edge of sine wave where 1/2 rated IPP is reached at initial 30o of the sine. 9. Rated IPP value for the 2x10s waveform above which could cause device damage.
Typical Performance Curves
3.0 NORMALIZED TO 25 oC VALUE NORMALIZED TO 25 oC VALUE SGT0640SB SGT0720SB 2.5 2.0 1.5 1.0 0.5 0 -40 3.0 SGT2300SB 2.5 2.0 1.5 1.0 0.5 0 -40
IH/IH AT 25 oC
IH/IH AT 25 oC
-20
0
20
40
60
80
100
120
-20
0
20
40
60
80
100
120
TEMPERATURE ( oC)
TEMPERATURE ( oC)
FIGURE 3. TYPICAL HOLDING CURRENT vs JUNCTION TEMPERATURE
FIGURE 4. TYPICAL HOLDING CURRENT vs JUNCTION TEMPERATURE
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Silicon Protection Circuits
Surface Mount SurgectorTM Transient Voltage Suppressors
Surgector Thyristors For Telecom Protection
Typical Performance Curves
3.0 SGT2900SB SGT3100SB 2.5 NORMALIZED TO 25 oC VALUE 2.0 1.5 NORMALIZED TO 25 oC VALUE 2.0
(Continued)
2.5 SGT0640SC SGT0720SC
IH/IH AT 25 oC
IH/IH AT 25 oC
1.5
1.0
1.0 0.5 0 -40
0.5
-20
0
20
40
60
80
100
120
0 -40
0
40
80
120
150
TEMPERATURE ( oC)
TEMPERATURE ( oC)
FIGURE 5. TYPICAL HOLDING CURRENT vs JUNCTION TEMPERATURE
FIGURE 6. TYPICAL HOLDING CURRENT vs JUNCTION TEMPERATURE
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SILICON PROTECTION CIRCUITS
120 120
3.0 NORMALIZED TO 25 oC VALUE NORMALIZED TO 25 oC VALUE 2.5 2.0 1.5 1.0 0.5 0 -40 SGT1500SC SGT1300SC
3.0 SGT2300SC 2.5 2.0 1.5 1.0 0.5 0 -40
IH/IH AT 25 oC
IH/IH AT 25 oC
0
40
80
120
-20
0
20
40
60
80
100
TEMPERATURE ( oC)
TEMPERATURE ( oC)
FIGURE 7. TYPICAL HOLDING CURRENT vs JUNCTION TEMPERATURE
FIGURE 8. TYPICAL HOLDING CURRENT vs JUNCTION TEMPERATURE
3.0 SGT2900SC SGT3100SC NORMALIZED TO 25 oC VALUE NORMALIZED TO 25 oC VALUE 2.5 2.0 1.5 1.0 0.5 0 -40
2.5 SGT3500SC 2.0
IH/IH AT 25 oC
IH/IH AT 25 oC -20 0 20 40 60 80 100 120
1.5
1.0
0.5
0 -40
-20
0
20
40
60
80
100
TEMPERATURE ( oC)
TEMPERATURE ( oC)
FIGURE 9. TYPICAL HOLDING CURRENT vs JUNCTION TEMPERATURE
FIGURE 10. TYPICAL HOLDING CURRENT vs JUNCTION TEMPERATURE
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Silicon Protection Circuits
Surface Mount SurgectorTM Transient Voltage Suppressors
Surgector Thyristors For Telecom Protection
Typical Performance Curves
1000 500 CAPACITANCE (pF) SGT0640SB, SGT0720SB f = 1MHz/1VRMS, TA = 25oC
(Continued)
1000 SGT2300SB f = 1MHz/1VRMS, TA = 25oC
100 50
CAPACITANCE (pF) 1 BIAS (V) 101 00
100
10 0.1
10 0.1
1 BIAS (V)
101
00
FIGURE 11. TYPICAL CAPACITANCE vs BIAS VOLTAGE
FIGURE 12. TYPICAL CAPACITANCE vs BIAS VOLTAGE
1000 500 CAPACITANCE (pF) SGT2900SB, SGT3100SB f = 1MHz/1VRMS, TA = 25oC
1000 500 CAPACITANCE (pF) SGT0640SC, SGT0720SC f = 1MHz/1VRMS, TA = 25oC
100 50
100 50
10 0.1
1 BIAS (V)
101
00
10 0.1
1 BIAS (V)
101
00
FIGURE 13. TYPICAL CAPACITANCE vs BIAS VOLTAGE
FIGURE 14. TYPICAL CAPACITANCE vs BIAS VOLTAGE
1000 500 CAPACITANCE (pF) SGT1300SC f = 1MHz/1VRMS, TA = 25oC CAPACITANCE (pF)
1000 SGT2300SC f = 1MHz/1VRMS, TA = 25oC
100 50
100
10 0.1
1 BIAS (V)
101
00
10 0.1
1 BIAS (V)
101
00
FIGURE 15. TYPICAL CAPACITANCE vs BIAS VOLTAGE
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FIGURE 16. TYPICAL CAPACITANCE vs BIAS VOLTAGE
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Silicon Protection Circuits
Surface Mount SurgectorTM Transient Voltage Suppressors
Surgector Thyristors For Telecom Protection
Typical Performance Curves
1000 500 CAPACITANCE (pF) SGT2900SC,SGT3100SC f = 1MHz/1VRMS, TA = 25oC CAPACITANCE (pF)
(Continued)
1000 500 SGT3500SC f = 1MHz/1VRMS, TA = 25oC
100 50
100 50
10 0.1
1 BIAS (V)
101
00
10 0.1
1 BIAS (V)
101
00
FIGURE 17. TYPICAL CAPACITANCE vs BIAS VOLTAGE
FIGURE 18. TYPICAL CAPACITANCE vs BIAS VOLTAGE
5
SILICON PROTECTION CIRCUITS
241
Recommended Surgectors for Typical Industry Standard Transient Specifications
INDUSTRY STANDARD GR1089 GR1089 GR1089 GR1089 GR 1089 FCC PART 68 FCC PART 68 FCC PART 68 FCC PART 68 ITU K.20 ITU K.20 ITU K.20 ITU K.20 ITU K.21 ITU K.21 ITU K.21 ITU K.21 SPECIFIED PEAK VOLTAGE 600V 1000V 1000V 2500V 1000V 800V 1500V 1000V 1500V 1000V 1000V 4000V 4000V 1500V 4000V 1000V 4000V SPECIFIED PEAK CURRENT 100A 100A 100A 500A 25A 100A 200A 25A 38A 25A 50A 100A 200A 75A 200A 25A 100A SPECIFIED CURRENT WAVESHAPE 10 x 1000s 10 x 360s 10 x 1000s 2 x 10s 10 x 360s 10 x 560s 10 x 160s 5 x 320s 5 x 320s 5 x 310s 5 x 310s 5 x 310s 5 x 310s 5 x 310s 5 x 310s 5 x 310s 5 x 310s RECOMMENDED SURGECTOR IPP TYPE C C C C B, C C C B, C B, C B, C B, C C C B, C C B, C C
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Silicon Protection Circuits
Surface Mount SurgectorTM Transient Voltage Suppressors
Surgector Thyristors For Telecom Protection
Terms and Parameter Definitions
VDRM - Maximim Off-State Voltage (DC or Peak) which may be applied continuously. IDRM - Maximum Reverse Current measured with VDRM applied. (Off-State Current) VT - Forward Voltage drop at the specified Forward Current IT, in the On-State latched mode. VBO - Maximum Breakover Voltage at which the device switches to the On-State latched mode. IH - Minimum On-State Current required to maintain the device in the latched-on state. CO - Terminal Capacitance measured at the specified off-state bias Voltage. ITSM - Maximum Peak Surge Current at the specified AC cycle waveform. IPP - Peak Pulse Surge Current rating of a designated waveform.
Ordering Information
SGT 310 0 S C T
Packing Method Option T = 330mm Tape and Reel 2500 pieces per reel
Peak Surge Current Indicator B = 50A (10 x 1000) C = 100A (10 x 1000) Package Style Single Die Indicator Voltage Rating Class Surgector
Tape and Reel Specifications (Meets EIA-481-1)
12 0
o
2 0.5
13 0.5 80 D
D = 330 2
LABEL 2 0.5 4.0 0.1 1.5 2 5.5 0.05 1.75 0.1 0.3 END 9.5 12 0.3 40 8 0.1 485 (MIN) 3.1 0.1 500 (MIN) DIRECTION OF FEED START TRAILER DEVICE TRAILER LEADER ROUND FEED HOLE 14 1.5
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Silicon Protection Circuits
Surface Mount SurgectorTM Transient Voltage Suppressors
Surgector Thyristors For Telecom Protection
Branding Layout
Littelfuse SURGECTOR PEAK SURGE CURRENT INDICATOR 3.75 0.3 2.0 0.1
Mechanical Outline Dimensions and Recommended Solder Pad Layout
DIMENSION: mm
F L SC 2300 92
2-DIGIT DATE CODE (YR/MTH) 4-DIGIT P/N REFERENCE 0.45 SGT2300SC (TOP VIEW - NOT TO SCALE) 1.0 0.3 1.0 0.3 0.1 0.1 1.78 0.1 0.1 2.29 1.78 2.0 (MAX) 5.1 0.3
Soldering Recommendations
Surface Mount Surgectors may be soldered with wave or reflow methods, and are compatible with common industry time-temperature profiles that include a preheat stage. When hand soldering, a 30W iron with a 1mm tip is recommended. The temperature should not exceed 300oC or a maximum 5 second duration.
5
2.29
SOLDERING PAD
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SILICON PROTECTION CIRCUITS

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