MH25-470KJI Welwyn Components, MH25-470KJI Datasheet

MH25-470KJI

Manufacturer Part Number

MH25-470KJI

Description

RESISTOR, H/V 0.25W 470K

Manufacturer

Welwyn Components

Series

MH25r

Datasheet

1.MH25-10MJI.pdf (2 pages)

Specifications of MH25-470KJI

Resistance

470kohm

Resistance Tolerance

Â± 5%

Power Rating

250mW

Voltage Rating

1.6kV

Resistor Element Material

Metal Film

No. Of Pins

Svhc

No SVHC

Temperature Coefficient

Â± 100ppm/Â°C

Resistor Case Style

Axial

Rohs Compliant

Yes

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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Construction

Thin film material is sputtered on to high grade ceramic rods.

Nickel plated steel caps are force fitted and the termination

wires are welded to the caps. The value is obtained by a

helical cut in the film and finally the resistor body is protected

by a cement protection applied so that the terminations

remain completely clear.

Marking

1% tolerance resistors are colour coded with 5 bands.

2% and 5% tolerance have 4. Band IEC 62 colours are used.

High Voltage

Metal Film Resistors

MH Series

•

Electrical Data

Physical Data

General Note

Welwyn Components reserves the right to make changes in product specification without notice or liability.

All information is subject to Welwyn’s own data and is considered accurate at time of going to print.

Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com

Power rating at 70°C max

Resistance range

Limiting element voltage

Isolation voltage

TCR

Resistance tolerance

Standard values

Thermal impedance

Ambient temperature range

Dimensions (mm) and Weight (g)

Type

MH25

MH37

BSEN 60065 Approval for MH37

in value range 680K to 3M

High working voltage to 3.5KV

Small size

High pulse load capability

Robust cement coating

Value up to 10M

L max

6.2

9.0

D max

2.5

3.7

f min

21.0

19.6

· Bedlington, Northumberland NE22 7AA, UK

d nom

0.6

0.8

mounting

centres

volts dc or ac peak

10.2

12.7

PCB

Radius

Bend

Min

ppm/°C

°C/watt

0.6

1.2

watts

ohms

volts

°C

Wt.nom

Terminations

Material

Strength

Solderability The terminations meet the requirements of

Solvent resistance

The body protection and marking are resistant to all normal

industrial cleaning fluids suitable for printed boards.

0.3

0.5

100K - 10M

MH25

1,600

0.25

140

Solder-coated copper wire.

The terminations satisfy the requirements of

IEC 68.2.21.

IEC 115-1, Clause 4.17.3.2

E24 and E96 preferred

- 55 to 155

1, 2, 5

Welwyn Components

700

100

100K - 3M

MH37

3,500

112

0.5

TT electronics plc

A subsidiary of

Issue E · 10.05

191

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MH25-470KJI Summary of contents

Page 1

... All information is subject to Welwyn’s own data and is considered accurate at time of going to print. © Welwyn Components Limited · Bedlington, Northumberland NE22 7AA, UK Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com MH25 watts 0.25 ohms ...

Page 2

... Alternative packing available by request. Lead Formed Resistors can also be supplied. Standard options of Lancet, Radial and Goal Post forming are shown in the Lead Form information sheet. Ordering Procedure Specify type reference, value and tolerance as shown in this example of MH25 10MR 1%: Type MH25 Resistance value (IEC62 code) ...

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