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SiBar Thyristors

These devices are designed to help protect sensitive telecommunication equipment from the hazards caused by overvoltage faults stemming from lightning, power contact, and power induction. They have a high electrical surge capability to help protect against transient faults and a high off-state impedance, rendering them virtually transparent during normal system operation. Download this pdf file for more information on the technology behind SiBar Thyristors.
Part Number VDM Max. (V) VBO Max. (V) IH Min. (mA) VT Max. (V) C1 @50V Typ. (pF)
SMA 50A Standard "SA" and "NSA" Devices
TVA170SA-L 170 265 150 4.0 20
TVA170NSA-L 170 220 150 4.0 20
TVA200SA-L 200 320 150 4.0 17
TVA220NSA-L 220 300 150 4.0 17
TVA270SA-L 270 365 150 4.0 16
TVA275NSA-L 275 350 150 4.0 16
SMB 50A Standard "SA" and "NSA" Devices
TVB058SA-L 58 77 150 4.0 43
TVB058NSA-L 58 77 150 4.0 44
TVB065NSA-L 65 88 150 4.0 41
TVB075NSA-L 75 98 150 4.0 34
TVB090NSA-L 90 130 150 4.0 31
TVB120NSA-L 120 160 150 4.0 24
TVB140NSA-L 140 180 150 4.0 23
TVB170SA-L 170 265 150 4.0 18
TVB170NSA-L 170 220 150 4.0 20
TVB180SA-L 180 219 150 4.0 30 (MAX)
TVB180NSA-L 180 240 150 4.0 19
TVB190NSA-L 190 260 150 4.0 19
TVB200SA-L 200 320 150 4.0 18
TVB220NSA-L 220 300 150 4.0 17
TVB270SA-L 270 365 150 4.0 15
TVB275NSA-L 275 350 150 4.0 15
TVB300SA-L 300 400 150 4.0 14
  TVB320NSA-L 320 400 150 4.0 14
SMB 80A Standard "SB" and "NSB" Devices
TVB058NSB-L 58 77 150 4.0 67
TVB065NSB-L 65 88 150 4.0 64
TVB075NSB-L 75 98 150 4.0 63
TVB090NSB-L 90 130 150 4.0 49
TVB120NSB-L 120 160 150 4.0 38
TVB140NSB-L 140 180 150 4.0 36
TVB170NSB-L 170 220 150 4.0 29
TVB180NSB-L 180 240 150 4.0 29
TVB190NSB-L 190 260 150 4.0 28
TVB200SB-L 200 320 150 4.0 30
TVB220NSB-L 220 300 150 4.0 26
TVB270SB-L 270 350 150 4.0 25
TVB275NSB-L 275 350 150 4.0 23
TVB300SB-L 300 400 150 4.0 21
  TVB320NSB-L 320 400 150 4.0 22
SMB 100A Standard "SC"and "NSC" Devices
TVB058NSC-L 58 77 150 4.0 114
TVB065NSC-L 65 88 150 4.0 103
TVB075NSC-L 75 98 150 4.0 90
TVB090NSC-L 90 130 150 4.0 79
TVB120NSC-L 120 160 150 4.0 72
TVB140NSC-L 140 180 150 4.0 66
TVB170SC-L 170 265 150 4.0 60
TVB170NSC-L 170 220 150 4.0 48
TVB180NSC-L 180 240 150 4.0 48
TVB190NSC-L 190 260 150 4.0 44
TVB200SC-L 200 320 150 4.0 55
TVB220NSC-L 220 300 150 4.0 41
TVB270SC-L 270 365 150 4.0 50
TVB275NSC-L 275 350 150 4.0 38
TVB300SC-L 300 400 150 4.0 47
  TVB320NSC-L 320 400 150 4.0 35

Notes:
All electrical characteristics are measured at 25°C.
VDM measured per UL497B pulse requirements: at max. off-state leakage current (IDM) = 5 µA.
VBO measured at 100V/µ

RoHS CompliantAll parts are RoHS compliant

Symbol Parameter Definition
VDM Maximum off-state
voltage		 Maximum DC voltage that can be applied to the device while maintaining
it in the off-state condition.
VBO Breakover voltage Maximum voltage across the device at breakdown measured under a
specified voltage and current rate of rise.
IH Hold current Minimum current required to maintain the device in the on-state.
VT On-state voltage Voltage across the device in the on-state condition at a specified current (IT).
IDM Off-state current Maximum DC value of current that results from the application of the maximum
off-state voltage.

Other Telecom Products

Additional Product Info

Part Numbering System for SiBar Thyristor Devices

Agency Recognition for SiBar Thyristor Devices
Standard Title File Number
UL Transient Voltage Surge Suppressors   E179610

Recommended Pad Layout for SiBar Thyristor Devices
SiBar Thyristor Pad Layout


Part
Description		 Tape and Reel
Quantity		 Standard
Package
Recommended Pad Layout (millimeters/ inches)
Dimension
A (Nom.)		 Dimension
B (Nom.)		 Dimension
C (Nom.)
TVAxxxSA-L 5,000 20,000 2.000 (0.079) 2.000 (0.079) 2.000 (0.079)
TVAxxxNSA-L 5,000 20,000 2.000 (0.079) 2.000 (0.079) 2.000 (0.079)
TVBxxxSA-L 2,500 10,000 2.261 (0.089) 2.159 (0.085) 2.743 (0.108)
TVBxxxNSA-L 2,500 10,000 2.261 (0.089) 2.159 (0.085) 2.743 (0.108)
TVBxxxSB-L 2,500 10,000 2.261 (0.089) 2.159 (0.085) 2.743 (0.108)
TVBxxxNSB-L 2,500 10,000 2.261 (0.089) 2.159 (0.085) 2.743 (0.108)
TVBxxxSC-L 2,500 10,000 2.261 (0.089) 2.159 (0.085) 2.743 (0.108)
TVBxxxNSC-L 2,500 10,000 2.261 (0.089) 2.159 (0.085) 2.743 (0.108)


Recommended Solder Reflow and Rework for SiBar Thyristor Devices


Solder Reflow and Rework Recommendations for SiBar Thyristor Surge Protectors
SiBar thyristor devices are compatible with standard reflow and wave soldering techniques.
Solder Reflow
• Recommended reflow methods: IR, vapor phase oven, hot air oven.
• Always preheat the device to prevent excessive thermal shock and stress.
• Recommended maximum paste thickness of 0.25mm (0.010 in.).
• Devices may be cleaned using standard industry methods and solvents.
Solder Rework
• Use standard industry practices for the SiBar Thyristor Surge Protectors.

 
  • Operation beyond the maximum ratings or improper use may result in device damage and possible electrical arcing and flame.
  • The devices are intended for protection against damage caused by occasional overvoltage fault conditions and should not be used when repeated fault conditions or prolonged trip events are anticipated.
  • Device performance can be impacted negatively if devices are handled in a manner inconsistent with recommended electronic, thermal, and mechanical procedures for electronic components.