UH3

SERIES

High Temp

Rev. 6

UH3 Series - High Temperature Capacitors

The UH3 series provides high voltage, high temperature capacitors that are 

amazingly economical and practical.

FEATURES

- Operation to 125°C

- Low ESR and ESL

- Low cost

- Withstands hostile environments

- Integrated mounting flanges

- RoHS compliant

STANDARD CONFIGURATION

- UH31 Male Terminals

- UH32 Female Terminals

Rev. 6

 

 

Parameter

Method

Condition

Vibration

204

D

Shock

213

I

Humidity

106

-

Thermal Shock

107

A

Life

108

F

Reference MIL-STD-202

1

10

100

1,000

10,000

100,000

25

50

75

100

125

150

INSULATION RESISTANCE (M

Ω

 x

 μ

F) 

INSULATION RESISTANCE VERSUS TEMPERATURE

Temperature (C)

-2.0

-1.5

-1.0

-0.5

0.0

0.5

-60 -45 -30 -15

0

15

30

45

60

75

90 105 120 135 150

CAPACITANCE CHANGE (%)

CAPACITANCE CHANGE at 1kHz VERSUS TEMPERATURE

Temperature (C)

!"##"$%&"'()*%+&',)%&)-./0)1#2)345$4,%&6,4

0.205

0.210

0.215

0.220

0.225

0.230

0.235

0.240

0.245

0.250

-60 -45 -30 -15

0

15

30

45

60

75

90 105 120 135 150

DISSIPATION FACTOR (%)

DISSIPATION FACTOR at 1kHz VERSUS TEMPERATURE

Temperature (C)

Dielectric Strength

Capacitors withstand a DC potential of 120% rated 

voltage for one (1) minute without damage or break-

down. Test voltage is applied and discharged through 

a resistance of 1 OHM per volt minimum, and at 

25°C.

  Specification Summary

  Characteristics

Capacitance Range

25.0μF to 325.0μF

Capacitance Tolerance

Standard capacitance tolerance is ±10%. Tolerances of ±20% and 
±5% are also available.

Operating Temperature Range

-65°C to +125°C

Enclosure/Construction

Metallized polymer film potted in thermoplastic housing.  Terminals 
are tin plated brass.

Voltage Rating

600 VDC to 1200 VDC

Quality Control

Capacitors are tested 100% for:

 

• Capacitance

 

• Tolerance

 

• Dissipation Factor

 

• Dielectric withstanding voltage

 

• Insulation Resistance

 

• Equivalent Series Resistance (ESR)

Process and inspection data are maintained on file and available

upon special request.

Environmental

Rev. 6

UH31-Case Style 1 

TOLERANCES

+/- 0.031 (0.8mm)

1.772

(45mm)

3.280

(83.3mm)

0.787

(20mm)

0.197

(5mm)

0.197

(5mm)

3.110

(79mm)

THREAD M8x1.25 2PL

135°

3.976

(101mm)

Ø 0.236 2PL

(6mm)

Ø 0.700 2PL

(17.8mm)

2.811

(71.4mm)

UH32- Case Style 1

TOLERANCES

+/- 0.031 (0.8mm)

1.772

(45mm)

3.280

(83.3mm)

0.197

(5mm)

0.197

(5mm)

3.110

(79mm)

135°

3.976

(101mm)

Ø 0.700 2PL

(17.8mm)

Ø 0.236 2PL

(6mm)
2.811

(71.4mm)

M5 x 0.8 THREAD

Tolerances: ±0.031 (±0.8mm)

0.118

(3mm)

1.969

(50mm)

0.472

(12mm)

0.315

(8mm)

3.937

(100mm)

M6 x 1.0 2PL

5Nm Max

Torque

135°

5.677

(144.2mm)

4.016

(102mm)

Ø 0.700

2PL

(17.8mm)

Ø 0.276

2PL

(7mm)

Ø 4.724

(120mm)

Tolerances: ±0.031 (±0.8mm)

1.969

(50mm)

0.118

(3mm)

0.315

(8mm)

3.937

(100mm)

4.724

(120mm)

M5 x 0.8 INTERNAL 2PL

4Nm MAX TORQUE

135°

5.677

(144.2mm)

4.016

(102mm)

Ø 0.700

2PL

(17.8mm)

Ø 0.276

2PL

(7mm)

Ø 4.724

(120mm)

UH31-Case Style 2

UH32- Case Style 2

UH3_BC117
UH3_BC327
UH3_BJ506
UH3_BJ146
UH3_BN256
UH3_BN756

600
600
900
900

1200
1200

50
60
50
60
50
60

110
325

50

140

25
75

67
36

101

55

142

75

29
21
43
31
57
41

48
74
40
58
31
48

40
61
33
48
25
39

29
44
24
35
18
29

56
85
45
67
35
55

62
99
51
78
39
64

4
3
6
5
9
7

3456
6685
2152
4320
1435
3085

PART NUMBER

AMBIENT TEMPERATURE

10 kHz CONTINUOUS

CURRENT RATING (AMPS RMS )

UH31, UH32

ELECTRICAL SPECIFICATIONS

VOLTAGE

VDC

VALUE

uF

“L”

nH

Fres

kHz

dv/dt

I pk

10 kHz

E.S.R

mOHMS

25°C

45°C

65°C

85°C

105°C

9

13

7

10

6
9

125°C

CASE

STYLE

1
2
1
2
1
2

  Detail Data

  Style

Rev. 6

TYPE

UH- High Temperature Polymer

STYLE 

UH31 - Male, UH32 - Female

Tolerance

Standard tolerance is ±10%. Tolerances of ±5% and ±20% are also available.

UH

31

C

157

K

VOLTAGE

DC Voltage Rating: C=600, J=900, N=1200

CAPACITANCE IN PICOFARADS

The first two digits are significant figures, the third digit represents the

number of zeros to follow to express the capacitance in picofarads.

Marking And Date Code

All capacitors are marked with company initials "EC", corporate logo or EC trademark—in addition to type UH3, capacitance, tolerance, rated 

DC working voltage and date code. The first two digits of the date code represent the year, the second two digits the week, i.e., 1252 is the 

52nd week of 2012, 1202 is the second week of 2012.

Quality Assurance

Major emphasis is placed on quality assurance. EC is an ISO 9001 and AS9100 Certified Company. Raw material inspection and the use of 

SPC manufacturing procedures assure the highest quality standards. Procedures are fully described in the EC Quality Control Manual. 

Electronic Concepts will continue to advance the state-of-the-art by utilizing leading edge technology, compact capacitor designs and 

establishing reliability procedures.

United States Headquarters 

Electronic Concepts, Inc.

526 Industrial Way West

Eatontown, NJ 07724

Tel: 732-542-7880

Fax: 732-542-0524
email: sales@ecicaps.com

website:www.ecicaps.com

European Headquarters

Electronic Concepts Europe LTD

IDA Estate

Oughterard

Co. Galway 

Ireland

tel: +353-91-552385,552432

fax: +353-91-552387
email: sales@ecicaps.ie

website:www.electronicconcepts.ie

The  combination  of  physical  and  electrical  properties  it  offers  encompasses  low  inductance  with  high  current  carrying 

capability – and a low profile to make the most efficient use of system space and increased cooling efficiency. Plus an 

in-house developed, “specific to the task” thermoplastic formulation for the enclosure, improves thermal conductivity. There 

is also an integrated flange with pre-drilled holes to simplify mounting.

Distribution Center

Elcon Sales

542 Industrial Way West

Eatontown, NJ 07724

Tel: 732-380-0405

Fax: 732-380-0409
email: sales@elconsales.com

How to Order

Sales Offices

Additional Information