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. 

Results: 28
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Description Datasheet Availability Pricing (IDR) Filter the results in the table by unit price based on your quantity.
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 400VDC 4700uF 20% Screw term/threaded
Datasheet
42In Stock
Min.: 1
Mult.: 1

4700 uF 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 450VDC 10000uF 20% Screw term/threaded
Datasheet
106In Stock
Min.: 1
Mult.: 1

10000 uF 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 450VDC 4700uF 20% Screw term/threaded
Datasheet
68In Stock
Min.: 1
Mult.: 1

4700 uF 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 450VDC 4700uF 20% Ring clip/clamp mnt
Datasheet
38In Stock
100Expected 03/07/2026
Min.: 1
Mult.: 1

4700 uF 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
93In Stock
32Expected 25/08/2026
Min.: 1
Mult.: 1

10000 uF 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 400VDC 2200uF 20% Ring clip/clamp mnt
Datasheet
31In Stock
72Expected 23/11/2026
Min.: 1
Mult.: 1

2200 uF 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 1800uF 20% Ring clip/clamp mnt
Datasheet
45In Stock
Min.: 1
Mult.: 1

1800 uF 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
6In Stock
Min.: 1
Mult.: 1

2200 uF 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
44On Order
Min.: 1
Mult.: 1

10000 uF 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 400VDC 4700uF 20% Ring clip/clamp mnt
Datasheet
32Expected 25/08/2026
Min.: 1
Mult.: 1

4700 uF 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 400VDC 2200uF 20% Screw term/threaded
Datasheet
72Expected 03/07/2026
Min.: 1
Mult.: 1

2200 uF 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 1800uF 20% Screw term/threaded
Datasheet
Non-Stocked Lead-Time 16 Weeks
Min.: 72
Mult.: 72

1800 uF 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

10000 uF 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

18000 uF 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

22000 uF 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

12000 uF 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

6800 uF 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

8200 uF 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

15000 uF 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

3300 uF 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

15000 uF 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

15000 uF 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

2200 uF 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

8200 uF 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

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