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What is V27ZA05P?

This electronic component, produced by the manufacturer "Littelfuse", performs the same function as "Varistors".


V27ZA05P Datasheet PDF - Littelfuse

Part Number V27ZA05P
Description Varistors
Manufacturers Littelfuse 
Logo Littelfuse Logo 


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Varistor Products
Low to Medum Voltage, Radial Lead
RoHS Pb ZA Varistor Series
The ZA Series of transient voltage surge suppressors are radial-lead
varistors (MOVs) designed for use in the protection of low and medium-
voltage circuits and systems. Typical applications include motor control,
telecom, automotive systems, solenoid, and power supply circuits to
protect circuit board components and maintain data integrity.
These devices are available in five model sizes: 5mm, 7mm, 10mm,
14mm and 20mm, and feature a wide VDC voltage range of 5.5V to 615V.
See ZA Series Device Ratings and Specifications table for part number
and brand information.
Features
• Lead-free and RoHS compliant option available. Please see the
device and ratings specifications table for more information.
• Wide Operating Voltage Range VM(AC)RMS . . . . . . . . . .4V to 460V
• DC Voltage Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.5V to 615V
• No Derating Up to 85oC Ambient
• 5 Model Sizes Available . . . . . 5, 7, 10, 14, and 20mm
• Radial-Lead Package for Hard-Wired or Printed Circuit
Board Designs
• Available in Tape and Reel or Bulk Pack
• Standard Lead Form Options
AGENCY APPROVALS FOR STANDARD PARTS:
Recognized under the components program of Underwriters Laboratories.
CECC and VDE certified.
Agency File Numbers: UL E135010, UL E75961, VDE 116895E, CECC
42201.
AGENCY APPROVALS FOR LEAD-FREE AND RoHS COMPLI-
ANT PARTS:
Recognized under the components program of Underwriters Laboratories.
CECC and VDE certified.
Agency File Numbers: UL E135010, UL E75961 (selected parts recog-
nized), VDE 116895E, CECC 42201-006.
DVE
®
2
NEW LEAD-FREE AND
RoHS COMPLIANT PARTS
AVAILABLE
www.littelfuse.com
67

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V27ZA05P equivalent
Varistor Products
Low to Medum Voltage, Radial Lead
RoHS Pb ZA Varistor Series
Power Dissipation Ratings
Should transients occur in rapid succession, the average power dissipation
required is simply the energy (watt-seconds) per pulse times the number
of pulses per second. The power so developed must be within the
specifications shown on the Device Ratings and Specifications table for
the specific device. Furthermore, the operating values need to be derated
at high temperatures as shown in Figure 1. Because varistors can only
dissipate a relatively small amount of average power they are, therefore,
not suitable for repetitive applications that involve substantial amounts of
average power dissipation.
100
90
80
70
60
50
40
30
20
10
0
-55 50
60 70 80 90 100 110 120 130 140 150
AMBIENT TEMPERATURE ( oC)
FIGURE 1. CURRENT, ENERGY AND POWER DERATING
CURVE
100
90
50
10
O1
T
T1
T2
TIME
O1 = Virtual Origin of Wave
T = Time From 10% to 90% of Peak
T1 = Virtual Front time = 1.25 • t
T2 = Virtual Time to Half Value (Impulse Duration)
Example: For an 8/20µs Current Waveform:
8µs = T1 = Virtual Front Time
20µs = T2 = Virtual Time to Half Value
FIGURE 2. PEAK PULSE CURRENT TEST WAVEFORM
2
Transient V-I Characteristics Curves
600
500
MAX CLAMPINGVOLTAGE
MODEL SIZE 5mm
400 8 TO 68VN(DC) RATING
300 TA = -55oC TO 85oC
200
100
90
80
70
60
V68ZA05(P)
V56ZA05(P)
V47ZA05(P)
50 V39ZA05(P)
40
V33ZA05(P)
V27ZA05(P)
30
V22ZA05(P)
V18ZA05(P)
20 V12ZA05(P)
V8ZA05(P)
10
10-3
10-2
10-1
100
101
PEAK AMPERES (A)
102
103
FIGURE 3. CLAMPING VOLTAGE FOR V8ZA05(P) - V68ZA05(P)
2000
1000
500
V330ZA05(P)
V270ZA05(P)
V240ZA05(P)
V220ZA05(P)
V205ZA05(P)
V180ZA05(P)
V150ZA05(P)
V120ZA05(P)
MAX CLAMPING VOLTAGE
MODEL SIZE 5mm
82
TA
T=O-5353o0CVTNO(DC85) oRCATING
200 V1V0802ZZAA0055((PP))
100
0.0001 0.001
0.01 0.1 1 10
PEAK AMPERES (A)
100 1000
FIGURE 4. CLAMPINGVOLTAGE FOR V82ZA05(P) - V33ZA05(P)
www.littelfuse.com
71


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Featured Datasheets

Part NumberDescriptionMFRS
V27ZA05PThe function is Varistors. LittelfuseLittelfuse

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