Tyco/Electronics
Raychem Corporation
308 Constitution Drive
Menlo Park, CA 94025
800-227-4856
FAX 800-227-4866
PolySwitch®
SiBar
Thyristor Surge Pr otectors
PRODUCT: TVB270SA
DOCUMENT: 24305
PCN: 574139
REV LETTER: B
REV DATE: AUGUST 16, 2001
PAGE NO.: 2 OF 2
DEVICE RATINGS @ 25º C (Both Polarities)
Parameter Symbol Value Units
Off-State Voltage, Maximum at ID = 5 µA VDM 270 V
Non-Repetitive Peak Impulse Current 10x1000 µsec
Double exponential waveform (Notes 1 and 2) 10/560 µsec
10/160 µsec
IPP1
IPP2
IPP3
50
70
100
A
A
A
Critical Rate of Rise of On-State Current
Maximum 2x10 µsec waveform, VOC=2.5kV, ISC=500A peak
di/dt
150
A/µs
DEVICE THERMAL RATINGS
Storage Temperature Range TSTG -65 to 150 ºC
Operating Temperature Range
Blocking or conducting state TA -40 to 125 ºC
Overload Junction Temperature
Maximum; Conducting state only TJ +175 ºC
ELECTRICAL CHARACTERISTICS Both polarities (TJ @ 25ºC unless otherwise noted)
Characteristics Symbol Min Typ Max Units
Breakover Voltage (+25ºC)
dV/dt = 100V/µsec, Isc=1.0A, VDC = 1000V VBO
----
310
370
V
Breakover Voltage (+25ºC)
f=60Hz, ISC=1.0Arms, VOC = 1000Vrms,
R=1.0 kΩ, t = 0.5 cycle (Note 2)
VBO
----
310
370
V
Breakover Voltage Temperature Coefficient dVBO/dTJ ---- 0.08 ----- %/ºC
Off-State Current (VD1= 50V)
(VD2= VDM) ID1
ID2 ----
---- -----
----- 2.0
5.0 µA
µA
On-State Voltage (IT=1A)
PW ≤ 300 µsec, Duty Cycle ≤ 2% (Note 2) VT ---- ----- 5.0 V
Breakover Current IBO ---- 230 ----- mA
Holding Current (Note 2) IH 175 350 ---- mA
Critical Rate of Rise of Off-State Voltage
(Linear waveform, VD = 0.8 X Rated VBO, TJ= +25ºC) dv/dt 2000 ---- ---- V/µs
Capacitance (f=1.0 Mhz, 50VDC bias, 1 Vrms)
(f=1.0 Mhz, 2VDC bias, 15mVrms) C1
C2 ----
---- 20
50 ----
pF
pF
Note 1. Al l ow cool i ng bef ore test second polarity
Note 2. Measured under pulse condit i ons to reduce heating
VOLTAGE-CURRENT CHARACTERISTIC