Silicon Protection Circuits
236 www.littelfuse.com
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®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.
Ordering Information
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
• 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
Symbol
PART
NUMBER
VBO (MAX)
ATI BO=800MA
IPP(MAX)
10 x 1000µs Pulse
SGT0640SBT
SGT0720SBT
SGT2300SBT
SGT2900SBT
SGT3100SBT
SGT0640SCT
SGT0720SCT
SGT1300SCT
SGT2300SCT
SGT2900SCT
SGT3100SCT
SGT3500SCT
SGT1500SCT
B TYPES
C TYPES
77
88
260
330
350
77
88
160
260
330
350
400
180
50
50
50
50
50
100
100
100
100
100
100
100
100
(V) (A)
IPP(MAX)
2 x 10µs Pulse
(A)
320
320
200
200
200
600
600
600
500
500
500
600
NOTE: T Suffix indicates Tape and Reel.
500
Surgector Thyristors For Telecom Protection
Silicon Protection Circuits
Surface Mount SurgectorTM Transient Voltage Suppressors
237
www.littelfuse.com
5
SILICON PROTECTION
CIRCUITS
Absolute Maximum Ratings
Continuous Reverse Voltage, VDRM ............................58V to 300V
Transient Peak Surge Current, IPP B Types C Types
8 x 20µs
10 x 160µs
10 x 560µs
10 x 1000µs
Critical Rate of Rise of Voltage, dv/dt . ....................... ..2000V/µs
Operating Conditions
Temperature Range, (TA).................................-40
oC 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. θJA is measured with the component mounted on an evaluation PC board in free air.
Electrical Specifications TC= 25oC, Unless Otherwise Specified
Thermal Information
Thermal Resistance (Typical, Note 1) θJA (oC/W)
J-Bend Package
C Types.............................................. ..85
B Type..................................................90
Maximum Storage Temperature Range. . . ..................- 65
oC to 150oC
Maximum Junction Temperature (Plastic Package). ....................150
oC
Maximum Lead Temperature (Soldering 5s). ......................... .300
oC
NOTES:
2. dv/dt = 100V/µs.
3. Double exponential current waveform.
4. One half cycle, 50 to 60Hz sine, non repetitive.
MODEL NUMBER
VDRM (MAX)
IDRM (MAX)
AT V DRM
VT (MAX)
AT 2 A (NOTE 2)
VBO (MAX)
AT I BO = 800mA
IH (MIN) (NOTE 3)
IPP (MAX) FOR 10
x 1000µs PULSE
(NOTE 4)
ITSM
CO (Typ)
AT 1MHz /
1V
RMS, DC
VµAV VmAA ApF
B TYPES
SGT0640SBT 58 5 5 77 150 50 25 80
SGT0720SBT 63 5 5 88 150 50 25 80
SGT2300SBT 190 5 5 260 150 50 25 30
SGT2900SBT 250 5 5 330 150 50 25 30
SGT3100SBT 275 5 5 350 150 50 25 30
C TYPES
SGT0640SCT 58 5 5 77 150 100 65 280
SGT0720SCT 63 5 5 88 150 100 65 280
SGT1300SCT 120 5 5 160 150 100 65 150
140 5 5 190 150 100 65 150
SGT2300SCT 190 5 5 260 150 100 65 100
SGT2900SCT 250 5 5 330 150 100 65 70
SGT3100SCT 275 5 5 350 150 100 65 70
SGT3500SCT 300 5 5 400 150 100 65 55
SGT1500SCT
2V
FIGURE 1. V-I CHARACTERISTICS
IT
IH
IDRM
VTVDRM
VBO
IBO
FIGURE 2. PEAK PULSE CURRENT TEST WAVEFORM
100
90
50
10
O1T
T1T2
TIME
PERCENT OF PEAK VALUE
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 8/20µs Current Waveform:
8µs = T1 = Virtual Front Time
20µs = T2 = Virtual Time to Half Value
200A
150A
100A
50A
400A
200A
150A
100A
Surface Mount SurgectorTM Transient Voltage Suppressors
Surgector Thyristors For Telecom Protection
Silicon Protection Circuits
238 www.littelfuse.com
Typical Performance Curves
MODEL
NUMBER (NOTE 5)
VARIATION OF
OF VBO vs TEMP
TA = -40oC TO 85oC
(%)
(NOTE 6)
TYPICAL VT
AT PEAK
IT, T A = 25oCVOLTS
(V)
(NOTE 7)
VARIATION OF CO
vs
FREQUENCY
(%) (NOTE 8)
MAXIMUM CRITICAL
RATE OF RISE OF
ON-STATE CURRENT
(dl/dT) (A/ µs) (NOTE 9)
MAXIMUM IPP FOR
2x10µs WAVEFORM
(A)
SGT0640SBT -6 to +6 4.2 at 50A 1 120 320
SGT0720SBT -6 to +6 4.2 at 50A 1 120 320
SGT2300SBT -5 to +4 3.2 at 50A 1 120 200
SGT2900SBT -4 to +4 3.3 at 50A 1 120 200
SGT3100SBT -4 to +4 3.3 at 50A 1 120 200
SGT0640SCT -6 to +6 5.2 at 100A 1 250 600
SGT0720SCT -6 to +6 5.2 at 100A 1 250 600
SGT1300SCT -5 to +1 4.1 at 100A 1 250 600
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 2x10µs waveform above which could cause device damage.
SGT2300SCT -5 to +4 4.9 at 100A 1 250 500
SGT2900SCT -4 to +4 7.2 at 100A 1 250 500
SGT3100SCT -4 to +4 7.2 at 100A 1 250 500
SGT3500SCT -3 to +4 7.7 at 100A 2 250 500
SGT1500SCT -5 to +1 4.1 at 100A 1 250 600
FIGURE 3. TYPICAL HOLDING CURRENT vs JUNCTION
TEMPERATURE
-40 -20 0 20 40 60 80 100 120
0
0.5
1.0
1.5
2.0
2.5
3.0
TEMPERATURE (oC)
NORMALIZED TO 25 oC VALUE
SGT0640SB
SGT0720SB
IH/IH AT 25oC
TABLE 1. ELECTRICAL CHARACTERISTICS
FIGURE 4. TYPICAL HOLDING CURRENT vs JUNCTION
TEMPERATURE
-40 -20 0 20 40 60 80 100 120
0
0.5
1.0
1.5
2.0
2.5
3.0
TEMPERATURE (oC)
SGT2300SB
NORMALIZED TO 25 oC VALUE
IH/IH AT 25oC
Surgector Thyristors For Telecom Protection
Silicon Protection Circuits
Surface Mount SurgectorTM Transient Voltage Suppressors
239
www.littelfuse.com
5
SILICON PROTECTION
CIRCUITS
Typical Performance Curves (Continued)
FIGURE 5. TYPICAL HOLDING CURRENT vs JUNCTION
TEMPERATURE
FIGURE 6. TYPICAL HOLDING CURRENT vs JUNCTION
TEMPERATURE
FIGURE 7. TYPICAL HOLDING CURRENT vs JUNCTION
TEMPERATURE
FIGURE 8. TYPICAL HOLDING CURRENT vs JUNCTION
TEMPERATURE
FIGURE 9. TYPICAL HOLDING CURRENT vs JUNCTION
TEMPERATURE
FIGURE 10. TYPICAL HOLDING CURRENT vs JUNCTION
TEMPERATURE
-40 0 20 60 100 120
0
0.5
1.0
1.5
2.0
3.0
TEMPERATURE (oC)
8040-20
2.5
NORMALIZED TO 25 oC VALUE
IH/IH AT 2 5 oC
SGT2900SB
SGT3100SB
-40 0 40 80 120 150
0
0.5
1.0
1.5
2.0
2.5
TEMPERATURE (oC)
SGT0640SC
SGT0720SC
NORMALIZED TO 25 oC VALUE
IH/IH AT 2 5 oC
3.0
2.5
2.0
1.5
1.0
0.5
0
-40 0 40 80 120
TEMPERATURE (oC)
NORMALIZED TO 25 oC VALUE
IH/IH AT 2 5 oC
3.0
2.5
2.0
1.5
1.0
0.5
0
-40 0 40 80 120
TEMPERATURE (oC)
-20 20 60 100
SGT2300SC
NORMALIZED TO 25 oC VALUE
IH/IH AT 2 5 oC
3.0
2.5
2.0
1.5
1.0
0.5
0
-40 0 40 80 120
TEMPERATURE (oC)
-20 20 60 100
SGT2900SC
SGT3100SC
NORMALIZED TO 25 oC VALUE
IH/IH AT 2 5 oC
2.5
2.0
1.5
1.0
0.5
0
-40 0 40 80 120
TEMPERATURE (oC)
-20 20 60 100
SGT3500SC
NORMALIZED TO 25 oC VALUE
IH/IH AT 2 5 oC
SGT1500SC
SGT1300SC
Surface Mount SurgectorTM Transient Voltage Suppressors
Surgector Thyristors For Telecom Protection
Silicon Protection Circuits
240 www.littelfuse.com
Typical Performance Curves (Continued)
FIGURE 11. TYPICAL CAPACITANCE vs BIAS VOLTAGE FIGURE 12. TYPICAL CAPACITANCE vs BIAS VOLTAGE
FIGURE 13. TYPICAL CAPACITANCE vs BIAS VOLTAGE FIGURE 14. TYPICAL CAPACITANCE vs BIAS VOLTAGE
FIGURE 15. TYPICAL CAPACITANCE vs BIAS VOLTAGE FIGURE 16. TYPICAL CAPACITANCE vs BIAS VOLTAGE
1000
500
100
50
10
0.1 10
BIAS (V)
CAPACITANCE (pF)
1100
SGT0640SB, SGT0720SB
f = 1MHz/1VRMS, TA = 25oC
1000
100
10
0.1 10
BIAS (V)
CAPACITANCE (pF)
1100
SGT2300SB
f = 1MHz/1VRMS, TA = 25oC
1000
100
10
0.1 10
BIAS (V)
CAPACITANCE (pF)
1100
SGT2900SB, SGT3100SB
f = 1MHz/1VRMS, TA = 25oC
50
500
1000
100
10
0.1 10
BIAS (V)
CAPACITANCE (pF)
1100
SGT0640SC, SGT0720SC
f = 1MHz/1VRMS, TA = 25oC
50
500
1000
100
10
0.1 10
BIAS (V)
CAPACITANCE (pF)
1100
SGT1300SC
f = 1MHz/1VRMS, TA = 25oC
500
50
1000
100
10
0.1 10
BIAS (V)
CAPACITANCE (pF)
1100
SGT2300SC
f = 1MHz/1VRMS, TA = 25oC
Surgector Thyristors For Telecom Protection
Silicon Protection Circuits
Surface Mount SurgectorTM Transient Voltage Suppressors
241
www.littelfuse.com
5
SILICON PROTECTION
CIRCUITS
Typical Performance Curves (Continued)
FIGURE 17. TYPICAL CAPACITANCE vs BIAS VOLTAGE FIGURE 18. TYPICAL CAPACITANCE vs BIAS VOLTAGE
1000
100
10
0.1 10
BIAS (V)
CAPACITANCE (pF)
1100
f = 1MHz/1VRMS, TA = 25oC
50
500
1000
100
10
0.1 10
BIAS (V)
CAPACITANCE (pF)
1100
SGT3500SC
f = 1MHz/1VRMS, TA = 25oC
500
50
SGT2900SC,SGT3100SC
Recommended Surgectors for Typical Industry Standard Transient Specifications
INDUSTRY STANDARD
SPECIFIED PEAK
VOLTAGE
SPECIFIED PEAK
CURRENT
SPECIFIED CURRENT
WAVESHAPE
RECOMMENDED
SURGECTOR IPP TYPE
GR1089 600V 100A 10 x 1000µsC
1000V 100A 10 x 360µs C
1000V 100A 10 x 1000µs C
2500V 500A 2 x 10µs C
GR 1089 1000V 25A 10 x 360µs B, C
FCC PART 68 800V 100A 10 x 560µs C
FCC PART 68 1500V 200A 10 x 160µs C
FCC PART 68 1000V 25A 5 x 320µs B, C
FCC PART 68 1500V 38A 5 x 320µs B, C
ITU K.20 1000V 25A 5 x 310µs B, C
ITU K.20 1000V 50A 5 x 310µs B, C
ITU K.20 4000V 100A 5 x 310µs C
ITU K.20 4000V 200A 5 x 310µs C
ITU K.21 1500V 75A 5 x 310µs B, C
ITU K.21 4000V 200A 5 x 310µs C
ITU K.21 1000V 25A 5 x 310µs B, C
ITU K.21 4000V 100A 5 x 310µs C
GR1089
GR1089
GR1089
Surface Mount SurgectorTM Transient Voltage Suppressors
Surgector Thyristors For Telecom Protection
Silicon Protection Circuits
242 www.littelfuse.com
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
Tape and Reel Specifications (Meets EIA-481-1)
SGT 310 0 S
Voltage Rating Class
Surgector
CT
Single Die Indicator
Package Style
Peak Surge Current Indicator
B = 50A (10 x 1000)
C = 100A (10 x 1000)
Packing Method Option
T = 330mm Tape and Reel
2500 pieces per reel
13 ±0.5
D
LABEL
2 ±0.5
120
o
D = 330 ±2
80
14 ±1.5
2 ±0.5
40 500 (MIN)
TRAILERDEVICE LEADERTRAILER
END START
DIRECTION OF FEED
ROUND
FEED HOLE
1.5
9.5
8 ±0.1
4.0 ±0.1
2
12 ±0.3
1.75 ±0.1
5.5 ±0.05
485 (MIN) 3.1 ±0.1
0.3
Surgector Thyristors For Telecom Protection
Silicon Protection Circuits
Surface Mount SurgectorTM Transient Voltage Suppressors
243
www.littelfuse.com
5
SILICON PROTECTION
CIRCUITS
Branding Layout Mechanical Outline Dimensions and
Recommended Solder Pad Layout
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.
SC
2300 92
Littelfuse SURGECTOR
PEAK SURGE
4-DIGIT P/N REFERENCE
SGT2300SC (TOP VIEW - NOT TO SCALE)
CURRENT INDICATOR
2-DIGIT DATE CODE (YR/MTH)
F
L
1.78 2.29 1.78
0.1 ± 0.1
2.29
1.0 ± 0.3
1.0 ± 0.3
2.0 ± 0.1
3.75 ± 0.3
5.1 ± 0.3
0.1 ± 0.1
0.45 2.0 (MAX)
SOLDERING PAD
DIMENSION: mm
