Varistors, ceramic transient voltage suppressors

SMD varistors suitable for ESD protection and high energy absorption
Leaded disk varistors up to +105 °C
SNF varistors up to +125 °C
Strap and block varistors
Intrinsically safe ThermoFuse varistors

Ceramic transient voltage suppressors

Suitable for ESD protection and surge current protection
Bidirectional clamping
Operating temperature up to +150 °C
Low leakage current
All case sizes available with AgNiSn termination

SMD disk varistors (CU)

Electrically equivalent to leaded types S05, S07 and S10
SMD plastic package
Lead-free soldering
UL and CSA approved (pending for CU4948)
Operating voltage V_RMS: 14 … 300 V
Max. energy absorption:
65000 mJ (2 ms)
Max. power dissipation: 400 mW

	Max. operating voltage (V AC)	Surge current (A)	Type	PDF
	11 - 300	100 - 1200	CU3225K115G2 - CU4032K95G2
	14 - 30	100, 250	CU3225K14AUTOG2 - CU4032K30AUTOG2

Leaded round disks, S05 ... S20 series

Operating voltage V_RMS 11 … 1100 V
Operating temperature +105 °C
High surge current ratings up to 12 kA
High energy ratings (2 ms) up to
440 J
For high energy absorption

	Max. operating voltage (V AC)	Surge current (A)	Type	PDF
	11 - 1100	100 - 8000	S05K11 - S20K95
	14 - 30	250 - 2000	S07K14AUTOS2D1 - S20K30AUTO
	48	250 - 2000	S07V42AUTOS2D1, S10V42AUTOS5D1, S14V42AUTOS5D1, S20V42AUTOS5D1
	130 - 680	800 - 10000	S05K130E2 - S20K680E2

Leaded round disks, S25 series

Operating voltage V_RMS 130 … 750 V
Operating temperature +105 °C
High surge current up to 20 kA
High energy ratings (2 ms) up to
1025 J
For high energy absorption

	Max. operating voltage (V AC)	Surge current (A)	Type	PDF
	130 - 750	20000	S25K130E4R12 - S25K750E4R12

Q14, Q20

Operating voltage V_RMS 130 … 680 V
Operating temperature +105 °C
Maximum load capacity with minimum component
Height miniaturization
High surge current rating up to 15 kA

	Max. operating voltage (V AC)	Surge current (A)	Type	PDF
	130 - 460	8000, 15000	Q14K130 - Q20K460

T14, T20, ETFV25

Operating voltage V_RMS
T14: 130 … 420 V
T20: 130 … 1000 V
ETV25: 115 … 420 V
Disk varistor with integrated thermal disconnector
Space saving
Monitoring option with 3^rd lead
UL approval (UL1449)

	Max. operating voltage (V AC)	Surge current (A)	Type	PDF
	115 - 420	20000	ETFV25K115E4 - ETFV25K420E4
	130 - 420	6000	T14K130E2 - T14K420E2
	130 - 680	10000	T20K130E2 - T20K680E2

SNF14, SNF20

Surge current ratings up to 12 kA
Energy ratings (2 ms) up to 440 J
Operating voltage V_RMS 130 … 550 V
Operation temperature +125 °C
IEC 60695-11-5 (needle flame test)

	Max. operating voltage (V AC)	Surge current (A)	Type	PDF
	275 - 550	5000 - 10000	SNF14K300E2S5, SNF14K420E2S5, SNF14K550E2S5, SNF20K275E2S5, SNF20K385E2S5

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