Datasheet > 20D271K

20D271K

更新时间： 2022-06-20 01:10:56

品牌	Logo	应用领域
WPI		压敏电阻
页数	文件大小	规格书
65页	1894K
描述
Metal Oxide Varistors

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20D271K 数据手册

Metal Oxide VaristOrs

General Characteristics

Storage Temperature

- 55° C to + 125° C

Operating Surface Temperature

Operating Ambient Temperature

125° C

- 55° C to + 85° C (without derating)

Maximum Voltage-Temperature

Coefﬁcient

< -0ꢀ01 % / °C

Insulation Resistance

Hi POT (Leads to Case, 1 min.)

Typical Response Time

Epoxy Rating

1000 Megohm minꢀ

2500 VDC (Phenolic coating 500 VDC and 2000 VDC ratings)

< 15 nsecꢀ

94 V-0

Current/Energy Derating (>85°C)

DC Leakage Current

Solderability

- 2ꢀ5 % / °C

200µA Max (at rated DC working voltage)

MIL STD 202G, Method 208H

Voltage change 10% from initially measured Varistor Voltageꢀ When

determining if varistor is within aforementioned criteria the same temperature

must be observed as was used for initial Varistor Voltage measurementsꢀ

Failure Criteria

Part Marking

Example: 20E241K-VB

241 K - N B

–– –– ––– ––

–– ––

(1) (2)

(3)

(4)

(5) (6)

(1) Disk Diameter

5mm – 32mm (Wire Lead)

32mm – 53mm

5 = 5mm, 7 = 7mm, 10 = 10mm,

14 = 14mm, 18 = 18mm, 20 = 20mm,

25 = 25mm, 32 = 32mm, 34 = 34mm,

40 = 40mm, 53 = 53mm

Factory Identiﬁer

depicted with black

dot(s) in this position.

SINCERA

40D511K-N

RoHS

SINCERA

40D511K-N

Compliant -N

SINCERA

(as of October 2007)

20E241K-NB

J=5%, K=10%

037

(2) Type

Phenolic Coating

Rated at 500 VDC

037

D = Standard

E = High Energy

R = (applicable only for 34mm Types)

C037

Date Code

C=Halogen Free Coating

(3) Varistor Voltage

J=5%, K=10%

241 = 24 x 10¹= 240

There are two options for placement

of date code for 32mm - 53mm.

(4) Tolerance

J = 5%, K = 10%, M = 20%

(5) N = RoHs Compliant Series (as of October 2007 forward, per Date Code)

(6) B = Phenolic coating rated at 500 VDCꢀ Phenolic coating rated at 2000 VDC requires no markingꢀ

Date Code

037 = First digit represents year (0 = 2010)ꢀ Second and third digits represent the week of the yearꢀ

This new date code system was implemented from 9/15/05ꢀ

NOTE: Parts will be marked SINCERAꢀ (This is the brand nameꢀ)

WORLD PRODUCTS INC. 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com

Rev. 9.9

Metal Oxide Varistors | 3

1 2 3 456 7 8...65

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