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23

PB, PC Series

For any questions, contact

sales-alpha@alpha-elec.co.jp

Document No.: 67013

Revision: 25-Apr-2016

PERFORMANCE

Parameters

Test Condition

MIL-R-39009

Specification

ALPHA Typical

Test Data

Maximum Rated Operating Temperature

Working Temperature Range

Maximum Working Voltage

Maximum Working Current

25°C

–55°C to +155°C

750V

PB=5A, PC=32A

Power Conditioning

25°C, Rated Voltage, 96 hrs.

±0.2%

±0.2%

Low Temperature Storage

Dielectric Withstanding Voltage

Insulation Resistance

Low Temperature Operation

Overload

Moisture Resistance

Terminal Strength

–55°C, No Load, 24 hrs.

Atmo. Pres.: AC 1 KV, 1 min. Baro. Pres. 8 mHg: AC 500V, 1min.

DC 500V, 2 min.

–55°C, Rated Voltage

Rated Voltage x 2.5, 5 sec.

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

2.27 kg (5 pounds),10 sec.

±0.3%

±0.2%

over 10,000 MΩ

±0.3%

±0.3%

±0.5%

±0.2%

±0.005%

±0.005%

over 10,000 MΩ

±0.005%

±0.01%

±0.05%

±0.005%

Shock

Vibration, High Frequency

100G, 6 ms., Sawtooth Wave, X, Y, Z, each 3 shocks

20G, 10 Hz to 2,000 Hz to 10 Hz, 20 min., X, Y, Z, each 4 hrs.

±0.2%

±0.2%

±0.005%

±0.005%

Life

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

±1.0%

±0.01%

High Temperature Exposure

155°C, No Load, 2,000 hrs.

±1.0%

±0.01%

Solderability

245°C, 5 sec.

over 95% coverage

FREQUENCY CHARACTERISTICS

15

10

50 100

(MHz)

Frequency

150

100

50

(%)

PB

1

0.4

100

2 k

10

FOUR-TERMINAL RESISTOR

For low ohmic resistor (less than 10 ohm), the resistance value and TCR

of the copper lead increases overall resistance value. Four-terminal

(Kelvin) connection is recommended per the following figure. Loading

current at terminals (V) causes measurement error.

TEMPERATURE OF RESISTOR SURFACE

12 34 56 78 910

On Aluminum Chassis

60

70

50

40

30

20

10

(W)

Applied Power

T (°C)

B

(19.2°C/W)

B (4.9°C/W)

A (3.4°C/W)

A (15.5°C/W)

In Free Air

Spots for Temperature Measurement

(in still air)

Aluminum Chassis

Screwed Down

A: Mold Surface

B: Element Surface

152.4 mm (L) x 101.6 mm (W)

x 50.8 mm (H) x 1.0 mm (T)

AFFECT OF PB TYPE LEAD FOR RESISTANCE

VALUE AND TCR

Resistance Value of Lead: 0.36V/cm

TCR of Lead: 3,900 ppm/°C

1

0.1

0.01

0.001

0.0001

0.00001

(%)

1k

100

10

1

0.1

Nominal Resistance Value (V)

f 0.8 Solder-Plated Copper/L=1cm

100

10

1

0.1

0.01

0.001

(ppm/°C)

Resistance

Value

TCR