B437x7 Ultra Compact Aluminium Capacitors

EPCOS / TDK B437x7 Ultra Compact Aluminium Capacitors offer a 400VDC voltage rating and two times the ripple current capacity. These capacitors feature an ultra-compact design and an all-welded construction that ensures reliable electrical contact. The B437x7 capacitor series has a 1800µF to 22,000µF capacitance range and a 51.6mm to 90mm diameter range. EPCOS / TDK B437x7 Ultra Compact Aluminium Capacitors are ideal for solar inverters, professional power supplies, and uninterruptible power supply applications. 

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Qty. RoHS ECAD Model Capacitance
Voltage Rating DC
Diameter
Length
Lead Spacing
Product
Life
Tolerance
Ripple Current
ESR
Minimum Operating Temperature
Maximum Operating Temperature
Series
Packaging
TDK Aluminium Electrolytic Capacitors - Screw Terminal 450VDC 10000uF 20% Screw term/threaded
Datasheet
48In Stock
Min.: 1
Mult.: 1

10 mF 450 VDC 76.9 mm 156.2 mm 31.7 mm High Reliability Electrolytic Capacitors 12000 Hour 20 % 24.5 A 11 mOhms - 40 C + 85 C B43727 Bulk
TDK Aluminium Electrolytic Capacitors - Screw Terminal 400VDC 2200uF 20% Screw term/threaded
Datasheet
72In Stock
Min.: 1
Mult.: 1

2.2 mF 400 VDC 51.6 mm 80.7 mm 22.2 mm High Reliability Electrolytic Capacitors 12000 Hour 20 % 7.65 A 55 mOhms - 40 C + 85 C B43727 Bulk
TDK Aluminium Electrolytic Capacitors - Screw Terminal 450VDC 4700uF 20% Ring clip/clamp mnt
Datasheet
132In Stock
Min.: 1
Mult.: 1

4.7 mF 450 VDC 64.3 mm 118.2 mm 28.5 mm High Reliability Electrolytic Capacitors 12000 Hour 20 % 13.8 A 24 mOhms - 40 C + 85 C B43707 Bulk
TDK Aluminium Electrolytic Capacitors - Screw Terminal 400VDC 10000uF 20% Ring clip/clamp mnt
Datasheet
113In Stock
Min.: 1
Mult.: 1

10 mF 400 VDC 76.9 mm 130.7 mm 31.7 mm High Reliability Electrolytic Capacitors 12000 Hour 20 % 22.9 A 12 mOhms - 40 C + 85 C B43707 Bulk
TDK Aluminium Electrolytic Capacitors - Screw Terminal 450VDC 4700uF 20% Screw term/threaded
Datasheet
37In Stock
Min.: 1
Mult.: 1

4.7 mF 450 VDC 64.3 mm 118.2 mm 28.5 mm High Reliability Electrolytic Capacitors 12000 Hour 20 % 13.8 A 24 mOhms - 40 C + 85 C B43727 Bulk
TDK Aluminium Electrolytic Capacitors - Screw Terminal 400VDC 4700uF 20% Screw term/threaded
Datasheet
42In Stock
Min.: 1
Mult.: 1

4.7 mF 400 VDC 64.3 mm 96.7 mm 28.5 mm High Reliability Electrolytic Capacitors 12000 Hour 20 % 12.7 A 26 mOhms - 40 C + 85 C B43727 Bulk
TDK Aluminium Electrolytic Capacitors - Screw Terminal 400VDC 2200uF 20% Ring clip/clamp mnt
Datasheet
31In Stock
72Expected 23/11/2026
Min.: 1
Mult.: 1

2.2 mF 400 VDC 51.6 mm 80.7 mm 22.2 mm High Reliability Electrolytic Capacitors 12000 Hour 20 % 7.65 A 55 mOhms - 40 C + 85 C B43707 Bulk
TDK Aluminium Electrolytic Capacitors - Screw Terminal 400VDC 4700uF 20% Ring clip/clamp mnt
Datasheet
22In Stock
Min.: 1
Mult.: 1

4.7 mF 400 VDC 64.3 mm 96.7 mm 28.5 mm High Reliability Electrolytic Capacitors 12000 Hour 20 % 12.7 A 26 mOhms - 40 C + 85 C B43707 Bulk
TDK Aluminium Electrolytic Capacitors - Screw Terminal 450VDC 1800uF 20% Ring clip/clamp mnt
Datasheet
45In Stock
Min.: 1
Mult.: 1

1.8 mF 450 VDC 51.6 mm 80.7 mm 22.2 mm High Reliability Electrolytic Capacitors 12000 Hour 20 % 7.11 A 60 mOhms - 40 C + 85 C B43707 Bulk
TDK Aluminium Electrolytic Capacitors - Screw Terminal 400VDC 2200uF 20% Ring clip/clamp mnt
Datasheet
4In Stock
Min.: 1
Mult.: 1

2.2 mF 400 VDC 51.6 mm 80.7 mm 22.2 mm High Reliability Electrolytic Capacitors 12000 Hour 20 % 7.65 A 55 mOhms - 40 C + 85 C B43707 Bulk
TDK Aluminium Electrolytic Capacitors - Screw Terminal 450VDC 10000uF 20% Ring clip/clamp mnt
Datasheet
32Expected 23/11/2026
Min.: 1
Mult.: 1

10 mF 450 VDC 76.9 mm 156.2 mm 31.7 mm High Reliability Electrolytic Capacitors 12000 Hour 20 % 24.5 A 11 mOhms - 40 C + 85 C B43707 Bulk
TDK Aluminium Electrolytic Capacitors - Screw Terminal 450VDC 1800uF 20% Screw term/threaded
Datasheet
Non-Stocked Lead-Time 16 Weeks
Min.: 72
Mult.: 72

1.8 mF 450 VDC 51.6 mm 80.7 mm 22.2 mm High Reliability Electrolytic Capacitors 12000 Hour 20 % 7.11 A 60 mOhms - 40 C + 85 C B43727 Bulk
TDK Aluminium Electrolytic Capacitors - Screw Terminal 400VDC 10000uF 20% Screw term/threaded
Datasheet
Non-Stocked Lead-Time 16 Weeks
Min.: 32
Mult.: 32

10 mF 400 VDC 76.9 mm 130.7 mm 31.7 mm High Reliability Electrolytic Capacitors 12000 Hour 20 % 13.8 A 12 mOhms - 40 C + 85 C B43727 Bulk
TDK Aluminium Electrolytic Capacitors - Screw Terminal ALUMINIUM ELECTROLYTIC SCREW TERMINALS 450V 18000uF
Datasheet
Non-Stocked Lead-Time 30 Weeks

18 mF 450 VDC 90 mm 197 mm Aluminum Electrolytic Capacitors 12000 Hour 20 % 39.4 A 6.1 mOhms - 40 C + 85 C B43707 Bulk
TDK Aluminium Electrolytic Capacitors - Screw Terminal 400VDC 22000uF 20% Ring clip/clamp mnt
Datasheet
Non-Stocked

22 mF 400 VDC 90 mm 197 mm Aluminum Electrolytic Capacitors 12000 Hour 20 % 42.4 A 5.6 mOhms - 40 C + 85 C B43707 Bulk
TDK B43707A5129M600
TDK Aluminium Electrolytic Capacitors - Screw Terminal Screw Terminals 12000uF 450V
Datasheet
Non-Stocked Lead-Time 22 Weeks
Min.: 24
Mult.: 24

12 mF 450 VDC 76.9 mm 190.7 mm High Reliability Electrolytic Capacitors 12000 Hour 20 % 29.2 A - 25 C + 85 C B43707 Bulk
TDK B43707A5688M600
TDK Aluminium Electrolytic Capacitors - Screw Terminal Screw Terminals 6800uF 450V
Datasheet
Non-Stocked Lead-Time 16 Weeks
Min.: 32
Mult.: 32

6.8 mF 450 VDC 76.9 mm 118.2 mm High Reliability Electrolytic Capacitors 12000 Hour 20 % 18.9 A - 25 C + 85 C B43707 Bulk
TDK B43707A5828M600
TDK Aluminium Electrolytic Capacitors - Screw Terminal Screw Terminals 8200uF 450V
Datasheet
Non-Stocked Lead-Time 16 Weeks
Min.: 32
Mult.: 32

8.2 mF 450 VDC 76.9 mm 130.7 mm High Reliability Electrolytic Capacitors 12000 Hour 20 % 21.3 A - 25 C + 85 C B43707 Bulk
TDK B43707A9159M600
TDK Aluminium Electrolytic Capacitors - Screw Terminal Screw Terminals 15000uF 400V
Datasheet
Non-Stocked Lead-Time 22 Weeks
Min.: 24
Mult.: 24

15 mF 400 VDC 76.9 mm 190.7 mm High Reliability Electrolytic Capacitors 12000 Hour 20 % 31.9 A - 25 C + 85 C B43707 Bulk
TDK B43707B5338M600
TDK Aluminium Electrolytic Capacitors - Screw Terminal Screw Terminals 3300uF 450V
Datasheet
Non-Stocked Lead-Time 16 Weeks
Min.: 50
Mult.: 50

3.3 mF 450 VDC 64.3 mm 96.7 mm High Reliability Electrolytic Capacitors 12000 Hour 20 % 11 A - 25 C + 85 C B43707 Bulk
TDK B43727A5159M600
TDK Aluminium Electrolytic Capacitors - Screw Terminal 15000UF 450V
Datasheet
Non-Stocked Lead-Time 16 Weeks
Min.: 24
Mult.: 24

15 mF 450 VDC 76.9 mm 220.7 mm High Reliability Electrolytic Capacitors 12000 Hour 20 % 34.3 A - 25 C + 85 C B43727 Bulk
TDK B43727A5159M608
TDK Aluminium Electrolytic Capacitors - Screw Terminal Screw Terminals 15000uF 450V
Datasheet
Non-Stocked Lead-Time 16 Weeks
Min.: 24
Mult.: 24

15 mF 450 VDC 76.9 mm 220.7 mm High Reliability Electrolytic Capacitors 12000 Hour 20 % 34.3 A - 25 C + 85 C B43727 Bulk
TDK B43727A5228M600
TDK Aluminium Electrolytic Capacitors - Screw Terminal Screw Terminals 2200uF 450V
Datasheet
Non-Stocked Lead-Time 16 Weeks
Min.: 72
Mult.: 72

2.2 mF 450 VDC 51.6 mm 96.7 mm High Reliability Electrolytic Capacitors 12000 Hour 20 % 8.23 A - 25 C + 85 C B43727 Bulk
TDK B43727A5828M600
TDK Aluminium Electrolytic Capacitors - Screw Terminal Screw Terminals 8200uF 450V
Datasheet
Non-Stocked Lead-Time 16 Weeks
Min.: 32
Mult.: 32

8.2 mF 450 VDC 76.9 mm 130.7 mm High Reliability Electrolytic Capacitors 12000 Hour 20 % 21.3 A - 25 C + 85 C B43727 Bulk
TDK B43727A9129M600
TDK Aluminium Electrolytic Capacitors - Screw Terminal Screw Terminals 12000uF 400V
Datasheet
Non-Stocked Lead-Time 16 Weeks
Min.: 32
Mult.: 32

12 mF 400 VDC 76.9 mm 156.2 mm High Reliability Electrolytic Capacitors 12000 Hour 20 % 26.2 A - 25 C + 85 C B43727 Bulk