ETFV25K175E4 EPCOS Inc, ETFV25K175E4 Datasheet - Page 8

• Manufacturer Part Number: ETFV25K175E4
• Description: VARISTOR THERMAL 175VRMS 25MM
• Manufacturer: EPCOS Inc
• Series: ThermoFuser

Specifications of ETFV25K175E4

• Varistor Voltage: 270V
• Current-surge: 20kA
• Number Of Circuits: 1
• Maximum Ac Volts: 175VAC
• Maximum Dc Volts: 225VDC
• Energy: 245J
• Package / Case: Disc 25mm
• Product: MOV
• Voltage Rating Dc: 225 V
• Voltage Rating Ac: 175 V
• Clamping Voltage: 455 V
• Peak Surge Current: 20 KA
• Surge Energy Rating: 245 J
• Capacitance: 1500 pF
• Operating Temperature Range: - 40 C to + 85 C
• Mounting: Radial
• Dimensions: 25 mm Dia. x 11.2 mm W x 35.2 mm L x 35.2 mm H
• Lead Spacing: 6.35 mm
• Termination Style: Through Hole
• Tolerance: 10 %
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 495-3649

Cautions and warnings
General
1. EPCOS metal oxide varistors are designed for specific applications and should not be used
2. Ensure suitability of SIOVs through reliability testing during the design-in phase. SIOVs
3. For applications of SIOVs in line-to-ground circuits based on various international and local
Storage
1. Store SIOVs only in original packaging. Do not open the package before storage.
2. Storage conditions in original packaging:
3. Avoid contamination of an SIOV's surface during storage, handling and processing.
4. Avoid storage of SIOVs in harmful environments that can affect the function during long-term
5. The SIOV type series should be soldered within the time specified:
Handling
1. SIOVs must not be dropped.
2. Components must not be touched with bare hands. Gloves are recommended.
3. Avoid contamination of the surface of SIOV electrodes during handling, be careful of the
Soldering (where applicable)
1. Use rosin-type flux or non-activated flux.
2. Insufficient preheating may cause ceramic cracks.
3. Rapid cooling by dipping in solvent is not recommended.
4. Complete removal of flux is recommended.
Please read Cautions and warnings and
Important notes at the end of this document.
for purposes not identified in our specifications, application notes and data books unless oth-
erwise agreed with EPCOS during the design-in-phase.
should be evaluated taking into consideration worst-case conditions.
standards there are restrictions existing or additional safety measures required.
Storage temperature:
Relative humidity:
Dew precipitation:
operation (examples given under operation precautions).
SIOV-S, -Q, -LS
ETFV and SFS types
sharp edge of SIOV electrodes.
Housed varistors
ThermoFuse varistors, ETFV25 series
<75% annual average,
<95% on maximum 30 days a year.
Is to be avoided.
24 months
12 months.
25 C ... +45 C,
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