Document
e e Unidirectionalh Transient Surge Suppressors (TO-202 Surgector) S [ /Title a t (SGT0 a 3U13, .D SGT06 w U13, w SGT23 U13) w
/Subject (Unidirectional Transient Surge Suppressors (Surge ctor)) /Autho r () /Keywords (Surge ctor, TVS, Transient Suppression,
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SGT03U13, SGT06U13, SGT23U13
July 1999 File Number
Data Sheet
Features
• Clamping Voltages: 33V, 60V, or 230V • High Peak Transient Surge Current • Minimum Holding Current: 130mA • Low On-State Voltage • UL Recognized File #E135010 to STD 497B
These surgector devices offer unidirectional clamping action and are designed to protect telecommunication equipment, data links, alarm systems, power supplies and other sensitive electrical circuits from damage by switching transients, lightning strikes, load changes, commutation spikes and power line crosses. These surgector devices are monolithic compound structures consisting of a thyristor whose gate region contains a special diffused section which acts as a zener diode. This zener diode section permits anode voltage turnon of the structure. Initial clamping by the zener diode section and fast turn-on by the thyristor, provide excellent voltage limiting even on very fast rise time transients. The thyristor also features very high holding current allowing the surgector to recover to its high impedance off state after a transient. The surgector device’s normal off-state condition in the forward blocking mode is a high impedance, low leakage state that prevents loading of the line. These surgector types are supplied in the modified TO-202 package.
Applications
• Telecommunications Equipment • Data and Communication Links • Modems
• Alarm Systems
Packaging
Equivalent Schematic Symbols
+ A + A
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+ A K
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MODIFIED TO-202
ANODE CATHODE
ANODE
7-15
1-800-999-9445 or 1-847-824-1188 | Copyright
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© Littelfuse, Inc. 1999
SGT03U13, SGT06U13, SGT23U13
Absolute Maximum Ratings
TC = 25oC SGT03U13 Continuous Off State Voltage: VDM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VRM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Transient Peak Surge Current: . . . . . . . . . . . . . . . . . . . . . . . . . . . ITSM 1µs x 2µs (Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8µs x 20µs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10µs x 560µs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10µs x 1000µs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . One Half Cycle . . . . . . . . . . . . . . . . . . . . . . . 50Hz to 60Hz (Note 2) One Second . . . . . . . . . . . . . . . . . . . . . . . . 50Hz to 60Hz, Halfwave Operating Temperature (TA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Storage Temperature Range (TSTG) . . . . . . . . . . . . . . . . . . . . . . . . . . . NOTES: 1. Unit designed not to fail open below: 450A. 2. One every 30s maximum.
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.
SGT06U13 58 1 300 200 125 100 60 30 -40 to 85 -40 to 150
SGT23U13 225 1 300 200 125 100 60 30
UNITS V V A A A A A A
oC oC
30 1 300 200 125 100 60 30
Electrical Specifications
At Case Temperature, TC = 25oC, Unless Otherwise Specified SGT10S10
PARAMETER Off-State Current
SYMBOL IDM
TEST CONDITIONS Maximum Rated VDM TA = 25oC TA = 85oC VRM = 1V TA = 25oC TA = 85oC IZ = 100µA
MIN
TYP
MAX
UNITS
-
-
50 10
nA µA mA mA
Reverse Current
IRM
-
-
1 10
Clamping Voltage SGT03U13 SGT06U13 SGT23U13 Breakover Voltage SGT03U13 SGT06U13 SGT23U13 Holding Current On-State Voltage Main Terminal Capacitance
VZ
33 60 230 VBO dv/dt = 100V/µs IH VT CO IT = 10A 130 -
-
-
V V V
90
50 85 275 2 -
V V V mA V pF
7-16
SGT03U13, SGT06U13, SGT23U13 Performance Curves
A VT 275 250 CLAMPING VOLTAGE (V) 225 200 175 150 125 100 75 50 IDM V VDM VZ 25 -40 -30 -20 -10 0 10 SGT06U13 SGT03U13 20 30 40 50 60 70 80 90 SGT23U13
IT IH VBO mA
AMBIENT TEMPERATURE (oC)
FIGURE 1. TYPICAL VOLT-AMPERE CHARACTERISTICS
FIGURE 2. TYPICAL CLAMPING VOLTAGE vs TEMPERATURE
NORMALIZED HOLDING CURRENT (mA)
1.5 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.6 -40 -30 -20 -10 0 10 20 30 40 50 60 70 AMBIENT TEMPERATURE (oC) 80 90 IT (INITIAL) = 2A BREAKOVER VOLTAGE (V)
275 250 225 200 175 150 125 100 75 50 25 10 100 1,000 RATE OF RISE OF VOLTAGE (V/µs) 10,000 SGT06U13 SGT03U13 SGT23U13
FIGURE 3. TYPICAL HOLDING CURRENT vs TEMPERATURE
FIGURE 4. TYPICAL V BO vs dv/dt
Terms and Symbols
VDM (Maximum Off-State Voltage) - Maximum off-state voltage (DC or pe.