HV switch, var. on-time, low coupling capacitance, MOSFET

The switches of the product group C3 are optimized regarding coupling capacitance against the control side and ground. A low coupling capacitance is the key to an efficient operation at high repetition rates. Reduced coupling capacitances are also desirable in view of low noise emission, good EMC behavior, stable operation and high switching speed. Both LC and LC2 switches fulfill these requirements very well. But if it is about highest switching frequencies (> 300 kHz), then the switches of series LC are the preferred choice. The disadvantage of the LC series is their limited transient immunity which makes them relatively sensitive for sparkovers, short circuits, unstable load and unstable input voltage. In opposite to that, the switches of the series LC2 are designed  for moderate switching frequencies (< 300 kHz) under harsh operating conditions).

Features:

  • Versatile HV switch with true relay character
  • On-time controllable by TTL signal
  • LC2 technology for highest transient immunity

Application Note

LC2 switches. Powerful, robust and transient proof.

Switch ModelMax. Voltage (kV)Peak Current (A)Peak Power (MW)On-Resist. (Ω)On-Time (ns)Housing Dimensions (mm3 )Datasheet
HTS 61-10-LC261000.6 2.3120…∞ 103 x 70 x 35
HTS 61-20-LC2 6200 1.2 1.15120…∞ 103 x 70 x 35
HTS 61-40-LC2 6400 2.40.65 120…∞ 115 x 75 x 75
HTS 61-80-LC2 6800 4.80.29 120…∞ 175 x 75 x 75
HTS 121-10-LC212100 1.2 4.6120…∞ 103 x 70 x 35
HTS 121-20-LC2 12200 2.4 2.3120…∞ 103 x 70 x 35
HTS 121-40-LC2 12400 4.8 1.65120…∞ 115 x 75 x 75
HTS 121-80-LC2 12800 9.60.82 120…∞ 175 x 100 x 75
HTS 121-120-LC2 121200 14.40.38120…∞ 240 x 150 x 80
HTS 121-240-LC2 122400 18.80.19 120…∞ 240 x 150 x 150
HTS 151-10-LC215100 1.5 6.8120…∞ 175 x 75 x 56
HTS 151-20-LC2 152003 3.4120…∞ 175 x 75 x 56
HTS 151-40-LC2 154006 1.52120…∞ 125 x 125 x 75
HTS 151-80-LC2 15800120.76 120…∞ 175 x 125 x 75
HTS 151-120-LC2 15120018 1.7120…∞  240 x 125 x 80
HTS 151-240-LC2 152400360.85 120…∞  240 x 125 x 150
HTS 201-10-LC2 201002 7.8150…∞ 200 x 75 x 56
HTS 201-20-LC2 202004 3.9150…∞ 200 x 75 x 56
HTS 201-40-LC2 204008 1.9150…∞ 200 x 150 x 56
HTS 201-80-LC2 20800160.95 150…∞ 200 x 150 x 80
HTS 201-120-LC2 201200240.63 150…∞ 252 x 175 x 80
HTS 201-160-LC2 201600320.47 150…∞ 312 x 175 x 80
HTS 201-200-LC2 202000400.38 150…∞ 372 x 175 x 80
HTS 201-400-LC2 204000800.19 150…∞ 372 x 175 x 150
HTS 241-10-LC2 24100 2.4 9.2200…∞ 252 x 75 x 56
HTS 241-20-LC2 24200 4.8 4.6200…∞ 252 x 75 x 56
HTS 241-40-LC2 24400 9.6 2.3200…∞ 252 x 175 x 56
HTS 241-80-LC2 24800 19.2 1.15200…∞ 200 x 175 x 80
HTS 241-120-LC2 241200 28.80.76200…∞ 252 x 175 x 80
HTS 241-160-LC2 24160038.40.57200…∞ 312 x 175 x 80
HTS 241-200-LC2 242000480.46200…∞ 372 x 175 x 80
HTS 241-400-LC2 244000960.23200…∞ 372 x 175 x 150
HTS 301-10-LC2 301003 11.4200…∞ 275 x 75 x 58
HTS 301-20-LC2 302006 5.7200…∞ 275 x 75 x 58
HTS 301-40-LC2 3040012 2.9200…∞ 275 x 150 x 58
HTS 301-80-LC2 3080024 1.43200…∞ 225 x 225 x 80
HTS 301-120-LC2 30120036 2.9200…∞ 252 x 225 x 80
HTS 301-160-LC2 301600480.71200…∞ 312 x 225 x 80
HTS 301-200-LC2 302000600.57200…∞ 372 x 225 x 80
HTS 301-400-LC2 3040001200.29200…∞ 372 x 225 x 150
HTS 401-10-LC2 401004 15.2200…∞ 350 x 75 x 58
HTS 401-20-LC2 402008 7.1200…∞ 350 x 75 x 58
HTS 401-40-LC2 4040016 3.6200…∞ 350 x 150 x 58
HTS 401-80-LC2 4080032 1.8200…∞ 350 x 150 x 80
HTS 401-120-LC2 40120048 1.27200…∞ 312 x 300 x 80
HTS 401-160-LC2 401600640.9200…∞ 372 x 300 x 80
HTS 401-200-LC2 402000800.71200…∞ 432 x 300 x 80
HTS 401-400-LC2 4040001600.36200…∞ 432 x 300 x 150
HTS 501-10-LC2 50100519250…∞ 252 x 150 x 58
HTS 501-20-LC2 5020010 8.5250…∞ 252 x 200 x 58
HTS 501-40-LC25040020 4.25250…∞ 372 x 150 x 58
 HTS 501-80-LC250 80040 2.12250…∞ 372 x 300 x 58
 HTS 501-160-LC250 160080 1.6250…∞ 372 x 300 x 90
 HTS 501-320-LC250 32001600.53250…∞ 372 x 300 x 160
HTS 701-10-LC2 70100725250…∞ 312 x 150 x 58
HTS 701-20-LC2 7020014 12.5250…∞ 312 x 200 x 58
HTS 701-40-LC2 7040028 6.25250…∞ 492 x 200 x 58
HTS 701-80-LC2 7080056 3.2250…∞ 492 x 200 x 80
HTS 701-120-LC2 70120084 2.8250…∞ 492 x 300 x 58
HTS 701-160-LC2 701600112 1.6250…∞ 492 x 200 x 150
HTS 901-10-LC2 90100938250…∞ 372 x 150 x 68
HTS 901-20-LC2 902001819250…∞ 372 x 200 x 68
HTS 901-40-LC29040036 8.5250…∞ 552 x 200 x 68
 HTS 901-80-LC29080072 4.25250…∞ 552 x 200 x 90
 HTS 901-120-LC2901200108 3.16250…∞ 552 x 250 x 90
HTS 1001-10-LC2 1001001040250…∞ 432 x 150 x 68
HTS 1001-20-LC2 1002002020250…∞ 432 x 200 x 68
HTS 1001-40-LC2 1004004010250…∞ 612 x 150 x 68
HTS 1001-80-LC2 100800805250…∞ 612 x 200 x 90
HTS 1001-120-LC2 1001200120 2.5250…∞ 612 x 250 x 90
HTS 1201-10-LC2 1201001242250…∞ 552 x 150 x 68
HTS 1201-20-LC2 1202002421250…∞ 552 x 200 x 68
HTS 1201-40-LC2 1204004821250…∞ 552 x 200 x 90
HTS 1201-80-LC2 12080096 10.5250…∞ 552 x 250 x 90
HTS 1401-10-LC2 1401001452250…∞ 672 x 150 x 68
HTS 1401-20-LC2 1402002826250…∞ 672 x 200 x 68
HTS 1401-40-LC2 1404005613250…∞ 672 x 250 x 90
HTS 1401-80-LC2 140800112 6.5250…∞ 672 x 300 x 90

LC switches. Prefered in high frequency applications with low capacitive load.

Switch ModelMax. Voltage (kV)Peak Current (A)Peak Power (MW)On-Resist. (Ω)On-Time (ns)Housing Dimensions (mm3 )Datasheet
HTS 31-12-LC 31200.36 1.2560…∞ 89 x 64 x 27
HTS 41-12-LC 4.51200.54 2.560…∞ 112 x 64 x 27
HTS 61-06-LC 6600.36560…∞ 89 x 64 x 27
HTS 81-12-LC 81200.96 3.75100…∞ 200 x 70 x 27
HTS 91-06-LC 9600.541060…∞ 112 x 64 x 27
HTS 91-12-LC 9120 1.8 3.75100…∞ 200 x 70 x 27
HTS 111-03-LC 11300.332460…∞ 89 x 64 x 27
HTS 121-03-LC 12300.362460…∞ 89 x 64 x 27
HTS 161-03-LC 16300.483660…∞ 112 x 64 x 27
HTS 161-06-LC 16600.9615100…∞ 200 x 70 x 27
HTS 161-12-LC 16120 1.92 7.5150…∞ 263 x 70 x 35
HTS 181-03-LC 18300.543660…∞ 112 x 64 x 27
HTS 181-06-LC 1860 1.815100…∞ 200 x 70 x 27
HTS 181-12-LC 18120 2.16 7.5150…∞ 263 x 70 x 35
HTS 331-06-LC 3360 1.9830150…∞ 263 x 70 x 35
HTS 331-03-LC 33300.9972100…∞ 200 x 70 x 35
HTS 361-03-LC 3630 1.872100…∞ 200 x 70 x 35
HTS 361-06-LC 3660 2.1630150…∞ 263 x 70 x 35
OptionDescription
B-CONBeginner's Configuration: The standard switch is equipped with various options to simplify first time experiments for users which are inexperienced with high voltage and high frequency circuit design. The beginner's configuration includes option FH and PT-HV for easy wiring and attachment without printed circuit boards
HFBHigh Frequency Burst: Improved burst capability of driver by means of external buffer capacitors. Recommended if more than 10 pulses with less than 10 μs spacing are generated.
HFSHigh Frequency Switching: External supply of auxiliary driver voltage (50-350 VDC according to type). Necessary if the specified “Maximum Operating Frequency” shall be exceeded. (2)
LPLow Pass: Low pass filter at the control input. Propagation delay time will be increased by ~50 ns. Jitter + 500 ps.  Improved noise immunity and  less critical wiring in high speed applications. (3)
FASTFaster Switching Times (-30 to -40%) due to increased driver power. Minimum on-times will be reduced by about 40 to 50%. For selected high current switches only. Please consult factory. (2)  
MIN-ONMinimum On-Time: Individually increased Minimum On-Time to ensure a minimum on duration indepently of control signal.  For safety relevant circuits.
MIN-OFFMinimum Off-Time: Individually increased Minimum Off-Time to ensure a minimum off duration indepently of control signal. For safety relevant circuits.
S-TTSoft Transition Time: ”Turn-On Rise Time” & “Turn-Off Rise Time” increased by ~20%. Simplified EMC design and less critical wiring if the shortest possible edge steepness is not required. (3)
LLLow Leakage Current: Off-state current reduced to less than 10%  of the specified value. Not available in connection with the cooling fin options and for switches of the UF series.
LNLow Noise:  Internal power driver modified for zero noise emission for a specific period of time. Relevant in conjunction with sensitive detector amplifiers (e.g. SEV/MCP applications) only. (2)
ISO-2525 kV Isolation:  Isolation Voltage increased to  25 kVDC. Housing dimensions may change for some models.
ISO-4040 kV Isolation:  Isolation Voltage increased to  40 kVDC. Housing dimensions may change for some models.  Only in connection with option PT-HV.
ISO-8080 kV Isolation:  Isolation Voltage increased to  80 kVDC. Housing dimensions may change for some models.  Only in connection with option PT-HV.
ISO-120120 kV Isolation: Isolation Voltage increased to 120 kVDC. Housing dimensions may change for some models. Only in connection with option PT-HV.
ISO-200200 kV Isolation: Isolation Voltage increased to 200 kVDC. Housing dimensions may change for some models. Only in connection with option PT-HV.
I-PCIntegrated Part Components: Integration of small part components according to customer’s specifications (e.g. buffer capacitors
I-FWDIntegrated Free-Wheeling Diode:  Built-in parallel diode with short recovery time. In connection with inductive load only.
I-FWDNIntegrated Free-Wheeling Diode Network: Built-in parallel diode plus serial blocking diode  with short recovery time. In connection with inductive load only.
LS-CLEMO socket for Control Connection. Input ipedance 100Ω. An assenbled linkage cable (1m/3ft) with two plugs plus one additional socket is included in supply. Improved noise immunity. (3)
PT-CPigtail for Control Connection: Flexible leads (l=75 mm) with PCB connector. This option is only relevant for switching modules with pins. Recommended for modules with options CF & GCF.
PT-HVPigtails for HV Connection: Flexible leads with cable lugs. For increased creepage. PT-HV is standard for all types with >25 kV switching voltage. Not recommended in extremely fast circuits.
ST-HVScrew Terminals for HV Connection: Threaded inserts at the bottom of module (if not standard). For PCB design. Operation above 25 kV requires liquid insulation (Galden®/Oil) or potting.
SEP-CSeparated Control Unit. Control unit with LED indicators in a separate housing (dim. 79x38x17 mm). Linkage cable (<1m) with plug. Control unit with soldering pins or pigtails.
FOI-IFibre Optics Input / Inhibit: Additional optical inhibit input to turn-off the switch by using the inhibit input with a fibre-optical signal (only in combination with option SEP-C) (2)
FOI-CFibre Optics Input / Control: Additional optical control input to trigger the switch with a fibre-optical signal (only in combination with option SEP-C) (2)
FOO-FFibre Optical Output / Fault: Additional optical output to read-out the failure condition with a fibre-optical signal (only in combination with option SEP-C) (2)
UL94Flame Retardant Casting Resin: Casting resin according to UL-94-VO. Minimum order quantity required. (2)
FHFlange Housing: Plastic flange housing for isolated attachment on conductive surfaces. Ideal if the switch is not intended for printed circuit boards. Option PT-HV is suggested.
THTubular Housing: Tubular instead of rectangular housing. Adaption to specific ambient conditions or in case  of difficult assembly situations. (2)
FCFlat Case: Height of standard plastic housings reduced to 19 mm or less. Not in combination with cooling options CF
ITCIncreased Thermal Conductivity: Special moulding process to increase the thermal conductivity of the module. Pd(max) will be increased by approx. 20-30%. (2)
CFCopper Cooling Fins d = 0.5 mm: Fin height 35 mm. Nickel plated. For air cooling with forced or natural convection as well as for liquid cooling with non-conductive coolants.
CF-1Copper Cooling Fins d = 1 mm: Fin thickness 1.0 mm instead of 0.5 mm. The Max. Power Dissipation Pd(max) will be increased by ~80 %. For air or liquid cooling (e.g. Galden® or oil).
CF-X2"Copper Cooling Fins ""XL"": Fin area enlarged by factor 2. Recommended for natural air convection. No significant cooling power improvement in connection with forced air or liquid cooling."
CF-X3"Copper Cooling Fins ""XXL"": Fin area enlarged by factor 3. Recommended for natural air convection. No significant cooling power improvement in connection with forced air or liquid cooling."
CF-CSCopper Cooling Fins with customized shape: Individual shape to meet specific OEM requirements. (2) Can be combined with options CF-1
CF-LCCopper Cooling Fins for liquid cooling: Double fins
CF-DDouble Copper Cooling Fins: Approx. 100% more cooling power
CF-SCopper Cooling Fins: Semiconductors soldered on fins. Approx. 30% to 100% more cooling power (type depending). Combinable with options CF-D
CF-GRANon-isolated Cooling Fins made of graphite: Very light weight compared to copper at similar heat transfer
CF-CERIsolated Cooling Fins made of ceramics: Heat transfer properties similar to alumina. Forced convection recommended due to 2 mm spacing between fins. Height 35 mm.
CCSCeramic Cooling Surface: Top side of switching module made of ceramics. Heat transfer properties similar to alumina. Max. 20 kVDC isolation. Forced convection recommended.
CCFCeramic Cooling Flange: Bottom side of switching module made of a plano grinded ceramic plate. Integrated metal frame for uniform and safe contact pressure. Max. 40 kVDC isolation.
C-DRCooling for Driver: Extra cooling for the driver and control electronics. Recommended in combination with option HFS at higher switching frequencies. (2)
GCFGrounded Cooling Flange: Nickel-plated copper flange for medium power. Max. isolation voltage 40kV. Increased coupling capacitance CC.
GCF-X2Grounded Cooling Flange
ILCIndirect Liquid Cooling:  Liquid cooling for all kind of conductive coolants incl. water. Internal heat exchanger made of ceramics. For medium power dissipation.
DLCDirect Liquid Cooling: Internal cooling channels arround the power semiconductors. The most efficient cooling for high frequency applications. Non-conductive coolants only.
HI-RELHigh Reliability / MIL Versions:  Available on request. (2)
[1]New option code:  Data sheets may differ from this coding system (especially older ones) and do not indicate all possible options as per above table.   
[2]Please consult factory for detailed information.
[3]These options are EMC-relevant and are recommended for industrial power applications