1
PA905C4R
Maximum Rating and Characteristics
Maximum ratings (at Ta=25˚C unless otherwise specied.)
Item Symbols Conditions Ratings Units
Repetitive peak reverse voltage VRRM - 400 V
Average output current Io 50Hz Square wave duty =1/2
Tc = 107˚C 20* A
Non-repetitive forward surge current** IFSM Sine wave, 10ms 1shot 70 A
Operating junction temperature
Tj
-150 ˚C
Storage temperature Tstg - -40 to +150 ˚C
Note* Out put current of center tap full wave connection.
Note** Rating per element
Electrical characteristics (at Ta=25˚C unless otherwise specied.)
Item Symbols Conditions Maximum Units
Forward voltage*** VFIF = 10 A 1.5 V
Reverse current*** IRVR =VRRM 500 µA
Reverse recovery time*** trr
I
F
= 0.1A, I
R
= 0.2A, Irec = 0.05A
0.05 μs
Thermal resistance Rth(j-c) Junction to case 1.5 ˚C/W
Note*** Rating per element
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Mechanical characteristics
Item Conditions Maximum Units
Mounting torque Recommended torque 0.4 to 0.6 N•m
Approximate mass
-
5.5 g
Low-Loss Fast Recovery Diode
2
PA905C4R
3
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FUJI Diode
Outline Drawings [mm]
2
3
PA905C4R
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FUJI Diode
0.1
1
10
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6
Tj=125℃
Tj=100℃
Tj=25℃
Forward Characteristic (typ.)
ＩＦ Forward Current （Ａ）
ＶＦ Forward Voltage （Ｖ）
0 100 200 300 400 500 600
10-2
10-1
100
101
102
103
Reverse Characteristic (typ.)
Tj= 25℃
Tj=100℃
Tj=125℃
Tj=150℃
ＩR Reverse Current （µＡ）
ＶR Reverse Voltage （Ｖ）
0 100 200 300 400 500 600
0.0
0.1
0.2
0.3
0.4
0.5
0.6
Reverse Power Dissipation(max.)
α=180°
DC
ＰＲ Reverse Power Dissipation （Ｗ）
ＶＲ Reverse Voltage （Ｖ）
0 2 4 6 8 10 12 14
0
2
4
6
8
10
12
14
16
18
Per 1element
DC
Square wave λ=180°
Sine wave λ=180°
Square wave λ=120°
Square wave λ=60°
Forward Power Dissipation(max.)
ＷＦ Forward Power Dissipation （Ｗ）
Ｉｏ Average Output Current （Ａ）
α
360°
VR
λ
360°
I0
4
PA905C4R
5
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0 5 10 15 20 25 30
80
90
100
110
120
130
140
150
λ:Conduction angle of forward current for each rectifier element
Io:Output current of center-tap full wave connection
Square wave λ=120°
Square wave λ=60°
Square wave λ=180°
Sine wave λ=180°
DC
Current Derating (Io-Tc)(max.)
Ｔｃ Case Temperature （℃）
Ｉｏ Average Output Current （Ａ）
011
10
100
1000
Junction Capacitance Characteristic (typ.)
Ｃj Junction Capacitance （ｐＦ）
ＶＲ Reverse Voltage （Ｖ）
011
1
10
100
Surge Capability
ＩFSM Peak Half - Wave Current （Ａ）
Number of Cycles at 50Hz
4
5
PA905C4R
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FUJI Diode
10-3 10-2 10-1 100101102
10-2
10-1
100
101
Rth j-c:1.5°C/W
Transient Thermal Impedance (max.)
Transient Thermal Impedance (°C/W)
t Time (sec)
6
PA905C4R
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FUJI Diode
WARNING
1. This Catalog contains the product specications, characteristics, data, materials, and structures as of March 2010.
The contents are subject to change without notice for specication changes or other reasons. When using a product listed in this
Catalog, be sure to obtain the latest specications.
2. All applications described in this Catalog exemplify the use of Fuji's products for your reference only. No right or license, either
express or implied, under any patent, copyright, trade secret or other intellectual property right owned by Fuji Electric Systems Co., Ltd.
is (or shall be deemed) granted. Fuji Electric Systems Co., Ltd. makes no representation or
warranty, whether express or implied, relating to the infringement or alleged infringement of other's intellectual property rights which
may arise from the use of the applications described herein.
3. Although Fuji Electric Systems Co., Ltd. is enhancing product quality and reliability, a small percentage of semiconductor
products may become faulty. When using Fuji Electric semiconductor products in your equipment, you are requested to take
adequate safety measures to prevent the equipment from causing a physical injury, re, or other problem if any of the products
become faulty. It is recommended to make your design fail-safe, ame retardant, and free of malfunction.
4. The products introduced in this Catalog are intended for use in the following electronic and electrical equipment which has
normal reliability requirements.
• Computers • OA equipment • Communications equipment (terminal devices) • Measurement equipment
• Machine tools • Audiovisual equipment • Electrical home appliances • Personal equipment • Industrial robots etc.
5. If you need to use a product in this Catalog for equipment requiring higher reliability than normal, such as for the equipment listed
below, it is imperative to contact Fuji Electric Systems Co., Ltd. to obtain prior approval. When using these products for
such equipment, take adequate measures such as a backup system to prevent the equipment from malfunctioning even if a Fuji's
product incorporated in the equipment becomes faulty.
• Transportation equipment (mounted on cars and ships) • Trunk communications equipment
• Trafc-signal control equipment • Gas leakage detectors with an auto-shut-off feature
• Emergency equipment for responding to disasters and anti-burglary devices • Safety devices
• Medical equipment
6. Do not use products in this Catalog for the equipment requiring strict reliability such as the following and equivalents to strategic
equipment (without limitation).
• Space equipment • Aeronautic equipment • Nuclear control equipment
• Submarine repeater equipment
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No part of this Catalog may be reproduced in any form or by any means without the express permission of Fuji Electric Systems Co., Ltd.
8. If you have any question about any portion in this Catalog, ask Fuji Electric Systems Co., Ltd. or its sales agents before
using the product.
Neither Fuji Electric Systems Co., Ltd. nor its agents shall be liable for any injury caused by any use of the products not in
accordance with instructions set forth herein.
