C&H Technology SH User Manual

6121 Baker Road,
Suite 108
Minnetonka, MN 55345

www.chtechnology.com

Phone [phone]

Fax [phone]

1-800-274-4284

Thank you for downloading this document from C&H Technology, Inc.

Please contact the C&H Technology team for the following questions -

Technical

Application

Assembly

Availability

Pricing

Phone – 1-800-274-4284

E-Mail – [e-mail]

www.chtechnology.com - SPECIALISTS IN POWER ELECTRONIC COMPONENTS AND ASSEMBLIES - www.chtechnology.com

SH

Vishay Sfernice

Heatsink Encased Wirewound Power Resistors

Industrial Applications

FEATURES

•≤ 50 Watt at + 25 °C

• High power characteristics

• Utilize heatsink capability

• Good mechanical protection

• Industrialized product

Built for high power dissipation applications, these components have very good overall characteristics for industrial use under
harsh environmental conditions.

DIMENSIONS in millimeters

RoHS

COMPLIANT

Ø K

MODEL AND

SH

A

D

E

Q

F

Ø 2

J

Ø P

M

N

H

B

G

L

STYLE

A
B ± 0.2
D ± 0.2

E ± 0.5

F

G ± 1

H ± 0.7

J ± 0.5

Ø K ± 0.1

L max.
M ± 0.5

N ± 0.3

Ø P min.

Q 25.3 ± 1.5 30.6 ± 1.5 44.6 ± 1.3 66.5 ± 1.4

Weight in g 3 8.8 16.5 30.8

SH5 SH10 SH25 SH50

28.5 ± 1.5

12.5

11.3

16.3

6.8 ± 1.5197.9 ± 1.52811.1 ± 1.55011 ± 1.2

8.5

6.2

16.4

2.4

8.9

4.3

1.6

2.1

35 ± 1.5

15.9
14

11

7.9

20.6

2.4

11

5.6

2

2.1

49 ± 1.3

19.8

18.3

14

9.9A

27.5

3.2

15

8

2.4

2.1

70.2 ± 1.4

21.4

39.7

15.5

10.7

29.4

3.2

15

8

2.4

2.1

ELECTRICAL SPECIFICATIONS

VISHAY SFERNICE MODEL AND STYLE SH5 SH10 SH25 SH50

Chassis mounted resistors: 413 cm2 for SH5 and SH10

Power Rat in g

Ohmic Value

Tolerance ± 5 %

Rated Maximum Voltage 160 V 250 V 550 V 1285 V

Dielectric Strength VRMS 800 V 1000 V 2000 V 2000 V

Insulation Resistance > 10

Temperature Coefficient ± 50 ppm/°C Rn > 50 Ω

Climatic Category 55/200/56

Temperature Limits - 55 °C + 200 °C

2

536 cm

Unmounted resistors at

for SH25 and SH50

25 °C 10 W 12.5 W 25 W 50 W

at

70 °C 8 W 10 W 20 W 40 W

25 °C 4 W 6 W 9 W 12 W

70 °C 3.2 W 4.8 W 7.2 W 9.6 W

0.1 Ω

3.3 kΩ

0.1 Ω

15 kΩ

4

MΩ > 3.104 MΩ

0.1 Ω

33 kΩ

0.1 Ω

51 kΩ

www.vishay.com For technical questions, contact: [e-mail] Document Number: 50014
54 Revision: 07-Dec-06

SH

Heatsink Encased Wirewound Power Resistors

Vishay Sfernice

Industrial Applications

PERFORMANCE

TESTS CONDITIONS TYPICAL DRIFTS

Momentary Overload 5 Pn/5 s ± 0.5 % max. + 0.05 Ω

Climatic Sequence

Load Life

POWER RATING CHART

100

REWOP DETAR %

75

50

25

0

0 50 100 150 200 250 275 300 350

- 55 °C + 200 °C
5 cycles

Nominal power Pn

1000 h at 25 °C

AMBIENT TEMPERATURE IN °C

± 1 % max. + 0.05 Ω

± 1 % max. + 0.05 Ω

TEMPERATURE RISE

200

C
°

N I
E
R U T

150

A
R E

P
M E

100

T
T O P

S

T O

50

H

0

0 10 20 30 40 50 60 70

H S

5

H S

5 2

H S

0

1

RATED POWER IN WATTS

(Mounted on heatsink chassis)

0

5

H S

PACKAGING

Bag of 10 units

MARKING

SFERNICE trademark, model, style, nominal resistance (in Ω), tolerance (in %), manufacturing date.

ORDERING INFORMATION

SH 25 10 kΩ 5 % BA10 e1

MODEL STYLE OHMIC VALUE TOLERANCE PACKAGING LEAD (Pb)-FREE

SAP PART NUMBERING GUIDELINES

SH 25 10001 J S03

MODEL STYLE OHMIC VALUE TOLERANCE PACKAGING

Document Number: 50014 For technical questions, contact: [e-mail]
Revision: 07-Dec-06 55

www.vishay.com