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21

PSB Series

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sales-alpha@alpha-elec.co.jp

Document No.: 67010

Revision: 25-Apr-2016

PERFORMANCE

Parameters

Test Condition

ALPHA

Specification

ALPHA Typical

Test Data

Maximum Rated Operating Temperature

Working Temperature Range

Maximum Working Current

25°C

–55°C to +85°C

100A

Power Conditioning

25°C, Rated Power, 96 hrs.

±0.1%

±0.05%

Low Temperature Storage and Operation –55°C, No Load, 24 hrs.

±0.1%

±0.05%

Dielectric Withstanding Voltage

Insulation Resistance

Low Temperature Operation

Overload

Atmo. Pres.: AC 750V, 1 min.

DC 500V, 2 min.

–55°C, Rated Power

Rated Power x 2.5, 5 sec.

±0.05%

over 10,000 MΩ

±0.1%

±0.1%

±0.01%

over 10,000 MΩ

±0.05%

±0.05%

Moisture Resistance

+65°C to –10°C, 90% RH to 98% RH, Rated Voltage, 10 cycles (240 hrs.)

±0.1%

±0.05%

Shock

High Frequency Shock

30G, 11 ms., Half-Sine Wave, X, Y, Z, 10 shocks each

10 Hz to 50 Hz to 10 Hz, 1 min. X, Y, Z, 2.0 hrs. each

±0.05%

±0.05%

±0.1%

±0.1%

Life

25°C, Rated Power, 1.5 hrs. – ON, 0.5 hrs. – OFF, 2,000 hrs.

±0.2%

±0.05%

High Temperature Exposure

85°C, No Load, 2,000 hrs.

±0.2%

±0.05%

Storage Life

15°C to 35°C, 15% RH to 75% RH, No Load, 10,000 hrs.

±0.05%

±0.01%

Internal Thermal Resistance

Between resistive element and base plate

0.3°C/W

Thermal Electromotive Force

1 µV/°C

FREQUENCY CHARACTERISTICS

(kHz)

3

2

1

0

-1

-2

-3

100

10

1

0.1

Frequency

10 m

100 m

1

(%)

TEMPERATURE OF RESISTOR SURFACE

A (4.7°C/W)

B (4.4°C/W)

A (1.5°C/W)

B: Bottom of Resistor

A: Element’s Surface

Screwed Down

Aluminum Heat Sink

100 mm (L) x 60 mm (W) x 60 mm (H)

B (1.2°C/W)

In Free Air

On Heat Sink

(Rth 1°C/W)

70

60

50

40

30

20

10

30

30

40

25

20

15

10

5

Applied Power

(W)

T (°C)