Capacitors for DC Link circuits

TDK is one of the world’s leading manufacturer of DC-Link capacitors.
Explore our comprehensive portfolio by clicking on the application icons below.

Topologies with inverter circuits for power conversion have increasing importance in the automotive electronic applications. The selection of the right capacitor for the DC-link function is the key to achieve the best solution in terms of electrical function, mechanical and thermal requirements, as well as cost optimization.

TDK has the largest variety of technologies and product portfolio for all concerned inverter applications in order to serve his customers best. This application support gives a perfect overview to make the right decisions for the best solution.

Inverter applications for the 12 V and 48 V electrical system in the range of 500 W

like HVAC Fan, Wiper, ABS/ESR Pump, etc.


	Aluminum Capacitors	Aluminum Capacitors	Film Capacitors	Film Capacitors	MLCC	MLCC
					all values apply for a single element	all values apply for a single element
Max. Operational Temperature (ambient + self heating)	125 °C ― 135 °C	135 °C ― 150 °C	125 °C	125 °C	125 °C (150 °C special)	125 °C (150 °C special)
Max. Ripple Current Capability 10 kHz, 125 °C / 150 °C	3.2 A (125 °C) ― 4.4 A (125 °C)	3.8 A (125 °C) ― 11.6 A (125 °C) 2.1 A (150 °C)	2 … 20 A_RMS (55 °C, 20 kHz)	2 … 20 A_RMS (55 °C, 20 kHz)	1.2 … 1.6 A	1.1 … 2.7 A
ESR	≤ 18 mΩ (20 °C, 100 kHz) ― ≤ 28 mΩ (20 °C, 100 kHz)	≤ 34 mΩ (20 °C, 100 kHz) ― ≤ 42 mΩ (20 °C, 10  kHz)	3 … 12 mΩ (20 °C, 20 kHz)	3 … 12 mΩ (20 °C, 20 kHz)	10 kHz: 2 … 17 mΩ 100 kHz: 1.3 … 3.8 mΩ 1 MHz: 1.6 … 8.0 mΩ	10 kHz: 11 … 43 mΩ 100 kHz: 5 … 8 mΩ 1 MHz: 4.3 … 10 mΩ
Capacitance	360 µF (35 V_DC) ― 3000 µF (35 V_DC)	1200 µF (63 V_DC) ― 510 µF (63 V_DC)	2 x 2.2 µF (63 V_DC, 2 A, 55 °C, 20 kHz) ― 4.7 µF (63 V_DC, 2 A, 55 °C, 20 kHz) ― 22 µF (63 V_DC, 9 A, 55 °C, 20 kHz) ― 68 µF (63 V_DC, 12 A, 55 °C, 20 kHz) ― 80 µF (63 V_DC, 20 A, 55 °C, 20 kHz) ⑤	2 x 2.2 µF (63 V_DC, 2 A, 55 °C, 20 kHz) ― 4.7 µF (63 V_DC, 2 A, 55 °C, 20 kHz) ― 22 µF (63 V_DC, 9 A, 55 °C, 20 kHz) ― 68 µF (63 V_DC, 12 A, 55 °C, 20 kHz) ― 80 µF (63 V_DC, 20 A, 55 °C, 20 kHz) ⑤	10 … 100 µF ③	4.7 … 22 µF ③
Mounting type, terminals	SMD ― Single-ended	Single-ended ― Axial-lead and Soldering Star	Parallel wire leads	Parallel wire leads	SMD	SMD
Volume	0.98 cm³ ― 5.03 cm³	8.8 cm³ ― 6.03 cm³	0.12 … 15.6 cm³	0.12 … 15.6 cm³	0.02 … 0.15 cm³ ④	0.02 … 0.15 cm³ ④
Height	12.5 mm ― 25 mm	31.5 mm ― 30 mm	6.5 … 27.5 mm	6.5 … 27.5 mm	2.5 … 5.0 mm	2.5 … 5.0 mm
	Products	Products	Products	Products	Products	Products

Inverter applications for the 12 V and 48 V electrical system in the range of 1 kW and higher

like Power Steering, Engine Fan, Climate Compressor, eCharger, etc.


	Aluminum Capacitors	Aluminum Capacitors	Film Capacitors	Film Capacitors	MLCC	MLCC
					all values apply for a single element	all values apply for a single element
Max. Operational Temperature (ambient + self heating)	125 °C ― 150 °C ― 150 °C	150 °C ― 150 °C	125 °C	125 °C	125 °C (150 °C special)	125 °C (150 °C special)
Max. Ripple Current Capability 10 kHz, 125 °C / 150 °C	2.8 A (125 °C) ― 22 A (125 °C) 2.68 A (150 °C) ― 12.5 A (125 °C) 2.2 A (150 °C)	17.2 A (125 °C) 3.1 A (150 °C) ― 19.1 A (125 °C) 2.28 A (150 °C)	2 … 20 A_RMS (55 °C, 20 kHz)	2 … 20 A_RMS (55 °C, 20 kHz)	1.2 … 1.6 A	1.1 … 2.7 A
ESR	≤20 mΩ (20 °C, 100 kHz) ― ≤5.1 mΩ (20 °C, 20 kHz) ― ≤41 mΩ (20 °C, 10 kHz)	≤26 mΩ (20 °C, 100 kHz) ― ≤6.4 mΩ (20 °C, 20 kHz)	3 … 12 mΩ (20 °C, 20 kHz)	3 … 12 mΩ (20 °C, 20 kHz)	10 kHz: 2 … 17 mΩ 100 kHz: 1.3 … 3.8 mΩ 1 MHz: 1.6 … 8.0 mΩ	10 kHz: 11 … 43 mΩ 100 kHz: 5 … 8 mΩ 1 MHz: 4.3 … 10 mΩ
Capacitance	270 µF (35 V_DC) ― 1200 µF (25 V_DC) ― 1300  µF (25 V_DC)	820 µF (63 V_DC) ― 390 µF (63 V_DC)	2 x 2.2 µF (63 V_DC, 2 A, 55 °C, 20 kHz) ― 4.7 µF (63 V_DC, 2 A, 55 °C, 20 kHz) ― 22 µF (63 V_DC, 9 A, 55 °C, 20 kHz) ― 68 µF (63 V_DC, 12 A, 55 °C, 20 kHz) ― 80 µF (63 V_DC, 20 A, 55 °C, 20 kHz) ⑤	2 x 2.2 µF (63 V_DC, 2 A, 55 °C, 20 kHz) ― 4.7 µF (63 V_DC, 2 A, 55 °C, 20 kHz) ― 22 µF (63 V_DC, 9 A, 55 °C, 20 kHz) ― 68 µF (63 V_DC, 12 A, 55 °C, 20 kHz) ― 80 µF (63 V_DC, 20 A, 55 °C, 20 kHz) ⑤	10 … 100 µF ③	4.7 … 22 µF ③
Mounting type, terminals	SMD ― Axial-lead and Soldering Star	Axial-lead and Soldering Star	Parallel wire leads	Parallel wire leads	SMD	SMD
Volume	0.78 cm³ ― 3.85 cm³ ― 6.03 cm³	8.9 cm³ ― 3.85 cm³	0.12 … 15.6 cm³	0.12 … 15.6 cm³	0.02 … 0.15 cm³ ④	0.02 … 0.15 cm³ ④
Height	10 mm ― 25 mm ― 30 mm	35 mm ― 25 mm	6.5 … 27.5 mm	6.5 … 27.5 mm	2.5 … 5.0 mm	2.5 … 5.0 mm
	Products	Products	Products	Products	Products	Products

Integrated or Belt-Starter-Generator and Motors for a power of 12 to 20 kW and higher in the 48 V electrical system


	Aluminum Capacitors	Film Capacitors	MLCC
Key Characteristics ①	63 V_DC	48 V	48 V
			all values apply for a single element
Max. Operational Temperature (ambient + self heating)	150 °C ― 150 °C	125 °C	125 °C (150 °C special)
Max. Ripple Current Capability 10 kHz, 125 °C / 150 °C	17.2 A (125 °C) 3.1 A (150 °C) ― 24.3 A (125 °C) 3.2 A (150 °C)	2 … 20 A_RMS (55 °C, 20 kHz)	1.1 … 2.7 A
ESR	≤26 mΩ (20 °C, 100 kHz) ― ≤4.5 mΩ (20 °C, 20 kHz)	3 … 12 mΩ (20 °C, 20 kHz)	10 kHz: 11 … 43 mΩ 100 kHz: 5 … 8 mΩ 1 MHz: 4.3 … 10 mΩ
Capacitance	820 µF (63 V_DC) ― 530 µF (63 V_DC)	2 x 2.2 µF (63 V_DC, 2 A, 55 °C, 20 kHz) ― 4.7 µF (63 V_DC, 2 A, 55 °C, 20 kHz) ― 22 µF (63 V_DC, 9 A, 55 °C, 20 kHz) ― 68 µF (63 V_DC, 12 A, 55 °C, 20 kHz) ― 80 µF (63 V_DC, 20 A, 55 °C, 20 kHz) ⑤	4.7 … 22 µF ③
Mounting type, terminals	Axial-lead and Soldering Star	Parallel wire leads	SMD
Volume	8.9 cm³ ― 5.03 cm³	0.12 … 15.6 cm³	0.02 … 0.15 cm³ ④
Height	35 mm ― 25 mm	6.5 … 27.5 mm	2.5 … 5.0 mm
	Products	Products	Products

On Board Charger for PHEV and BEV


	Aluminum Capacitors	Aluminum Capacitors	Film Capacitors	Film Capacitors	MLCC	MLCC	CeraLink	CeraLink
Remark		series configuration of 450 / 500 V_DC capacitors			all values apply for a single element	all values apply for a single element same item as 400 V ②	for all 500 V types (not SP)	for all 900 V types (not SP)
Max. Operational Temperature (ambient + self heating)	105 °C	105 °C	105 °C ― 125 °C ― 105 °C ― 105 °C	105 °C ― 125 °C ― 105 °C ― 105 °C	125 °C	125 °C	150 °C	150 °C
Max. Ripple Current Capability 100 kHz, 85 °C	4.91 A (120 Hz, 85 °C) ― 3.93 A (120 Hz, 85 °C)	4.91 A (120 Hz, 85 °C) ― 3.93 A (120 Hz, 85 °C)	3.5 … 108 A (85 °C, 20 kHz)	3.5 … 108 A (85 °C, 20 kHz)	2.0 … 2.5 A	2.0 … 2.5 A	11 … 47 A	5 … 32 A
ESR	≤140 mΩ (20 °C, 120 Hz) ≤50 mΩ (60 °C, 120 Hz) ― ≤170 mΩ (20 °C, 120 Hz) ≤50 mΩ (60 °C, 120 Hz)	≤140 mΩ (20 °C, 120 Hz) ≤50 mΩ (60 °C, 120 Hz) ― ≤170 mΩ (20 °C, 120 Hz) ≤50 mΩ (60 °C, 120 Hz)	0.5 … 3 mΩ (70 °C, 10 kHz)	0.5 … 3 mΩ (70 °C, 10 kHz)	10 kHz: 60 … 130 mΩ 100 kHz: 10 … 20 mΩ 1 MHz: 7 … 15 mΩ	10 kHz: 60 … 130 mΩ 100 kHz: 10 … 20 mΩ 1 MHz: 7 … 15 mΩ	3 … 12 mΩ @ 0 V_DC, 0.5 V_AC, 25 °C, 1 MHz	7 … 45 mΩ @ 0 V_DC, 0.5 V_AC, 25 °C, 1 MHz
Capacitance	820 µF (450 V_DC) ― 390 µF (500 V_DC)	820 µF (450 V_DC) ― 390 µF (500 V_DC)	10 µF (15 A, 100 kHz, 85 °C) ― 12 µF (15 A, 100 kHz, 85 °C) ― 18 µF (15 A, 100 kHz, 85 °C)	10 µF (15 A, 100 kHz, 85 °C) ― 12 µF (15 A, 100 kHz, 85 °C) ― 18 µF (15 A, 100 kHz, 85 °C)	0.47 … 1 µF ③	0.47 … 1 µF ③	0.6 … 6 µF (C_eff) 1 … 10 µF (C_nom)	0.13 … 1.3 µF (C_eff) 0.25 … 2.5 µF (C_nom)
Mounting type, terminals	Snap-in version with 3 terminals	Snap-in version with 3 terminals	Parallel wire leads	Parallel wire leads	SMD	SMD	SMD / Leadframes	SMD / Leadframes
Volume	48.1 cm³	48.1 cm³	6.6 cm³	6.6 cm³	0.07 … 0.15 cm³ ④	0.07 … 0.15 cm³ ④	0.23 … 2.02 cm³	0.23 … 2.02 cm³
Height	50 mm	50 mm	19 mm	19 mm	2.5 … 5.0 mm	2.5 … 5.0 mm	4.0 … 9.1 mm	4.0 … 9.1 mm
	Products	Products	Products	Products	Products	Products	Products	Products

DC/DC Converter HV to 12 V


	Film Capacitors	Film Capacitors	MLCC	MLCC	CeraLink	CeraLink
Remark			all values apply for a single element	all values apply for a single element same item as 400 V ②	for all 500 V types (not SP)	for all 900 V types (not SP)
Max. Operational Temperature (ambient + self heating)	105 °C ― 125 °C ― 105 °C ― 105 °C	105 °C ― 125 °C ― 105 °C ― 105 °C	125 °C	125 °C	150 °C	150 °C
Max. Ripple Current Capability @ 150 kHz, 85 °C	3.5 … 108 A (85 °C, 20 kHz)	3.5 … 108 A (85 °C, 20 kHz)	2.3 … 2.7 A	2.3 … 2.7 A	15 … 60 A_RMS	6 … 45 A_RMS
ESR	0.5 … 3 mΩ (70 °C, 10 kHz)	0.5 … 3 mΩ (70 °C, 10 kHz)	10 kHz: 60 … 130 mΩ 100 kHz: 10 … 20 mΩ 1 MHz: 7 … 15 mΩ	10 kHz: 60 … 130 mΩ 100 kHz: 10 … 20 mΩ 1 MHz: 7 … 15 mΩ	3 … 12 mΩ @ 0 V_DC, 0.5 V_AC, 25 °C, 1 MHz	7 … 45 mΩ @ 0 V_DC, 0.5 V_AC, 25 °C, 1 MHz
Capacitance	10 µF (15 A, 100 kHz, 85 °C) ― 12 µF (15 A, 100 kHz, 85 °C) ― 18 µF (15 A, 100 kHz, 85 °C)	10 µF (15 A, 100 kHz, 85 °C) ― 12 µF (15 A, 100 kHz, 85 °C) ― 18 µF (15 A, 100 kHz, 85 °C)	0.47 … 1 µF ③	0.47 … 1 µF ③	0.6 … 6 µF (C_eff) 1 … 10 µF (C_nom)	0.13 … 1.3 µF (C_eff) 0.25 … 2.5 µF (C_nom)
Mounting type, terminals	Parallel wire leads	Parallel wire leads	SMD	SMD	SMD / Leadframes	SMD / Leadframes
Volume	6.6 cm³	6.6 cm³	0.07 … 0.15 cm³ ④	0.07 … 0.15 cm³ ④	0.23 … 2.02 cm³	0.23 … 2.02 cm³
Height	19 mm	19 mm	2.5 … 5.0 mm	2.5 … 5.0 mm	4.0 … 9.1 mm	4.0 … 9.1 mm
	Products	Products	Products	Products	Products	Products

HV Heater for 5 kW and higher


	Film Capacitors	Film Capacitors	MLCC	MLCC	CeraLink	CeraLink
Remark			all values apply for a single element	all values apply for a single element same item as 400 V ②	for all 500 V types (not SP)	for all 900 V types (not SP)
Max. Operational Temperature (ambient + self heating)	105 °C ― 125 °C ― 105 °C ― 105 °C	105 °C ― 125 °C ― 105 °C ― 105 °C	125 °C	125 °C	150 °C	150 °C
Max. Ripple Current Capability 10 kHz, 125 °C / 150 °C	3.5 … 108 A (85 °C, 20 kHz)	3.5 … 108 A (85 °C, 20 kHz)	0.8 … 1.1 A	0.8 … 1.1 A	3.6 … 15 A_RMS	2.7 … 10 A_RMS
ESR	0.5 … 3 mΩ (70 °C, 10 kHz)	0.5 … 3 mΩ (70 °C, 10 kHz)	10 kHz: 60 … 130 mΩ 100 kHz: 10 … 20 mΩ 1 MHz: 7 … 15 mΩ	10 kHz: 60 … 130 mΩ 100 kHz: 10 … 20 mΩ 1 MHz: 7 … 15 mΩ	3 … 12 mΩ @ 0 V_DC, 0.5 V_AC, 25 °C, 1 MHz	7 … 45 mΩ @ 0 V_DC, 0.5 V_AC, 25 °C, 1 MHz
Capacitance	10 µF (15 A, 100 kHz, 85 °C) ― 12 µF (15 A, 100 kHz, 85 °C) ― 18 µF (15 A, 100 kHz, 85 °C)	10 µF (15 A, 100 kHz, 85 °C) ― 12 µF (15 A, 100 kHz, 85 °C) ― 18 µF (15 A, 100 kHz, 85 °C)	0.47 … 1 µF ③	0.47 … 1 µF ③	0.6 … 6 µF (C_eff) 1 … 10 µF (C_nom)	0.13 … 1.3 µF (C_eff) 0.25 … 2.5 µF (C_nom)
Mounting type, terminals	Parallel wire leads	Parallel wire leads	SMD	SMD	SMD / Leadframes	SMD / Leadframes
Volume	6.6 cm³	6.6 cm³	0.07 … 0.15 cm³ ④	0.07 … 0.15 cm³ ④	0.23 … 2.02 cm³	0.23 … 2.02 cm³
Height	19 mm	19 mm	2.5 … 5.0 mm	2.5 … 5.0 mm	4.0 … 9.1 mm	4.0 … 9.1 mm
	Products	Products	Products	Products	Products	Products

HV Auxilliaries in the range of 1 kW

like Climate Compressor, Water Pump and Suspension


	Film Capacitors	Film Capacitors	MLCC	MLCC	CeraLink	CeraLink
Remark			all values apply for a single element	all values apply for a single element same item as 400 V ②	for all 500 V types (not SP)	for all 900 V types (not SP)
Max. Operational Temperature (ambient + self heating)	105 °C ― 125 °C ― 105 °C ― 105 °C	105 °C ― 125 °C ― 105 °C ― 105 °C	125 °C	125 °C	150 °C	150 °C
Max. Ripple Current Capability 10 kHz, 125 °C / 150 °C	3.5 … 108 A (85 °C, 20 kHz)	3.5 … 108 A (85 °C, 20 kHz)	0.8 … 1.1 A	0.8 … 1.1 A	3.6 … 15 A_RMS	2.7 … 10 A_RMS
ESR	0.5 … 3 mΩ (70 °C, 10 kHz)	0.5 … 3 mΩ (70 °C, 10 kHz)	10 kHz: 60 … 130 mΩ 100 kHz: 10 … 20 mΩ 1 MHz: 7 … 15 mΩ	10 kHz: 60 … 130 mΩ 100 kHz: 10 … 20 mΩ 1 MHz: 7 … 15 mΩ	3 … 12 mΩ @ 0 V_DC, 0.5 V_AC, 25 °C, 1 MHz	7 … 45 mΩ @ 0 V_DC, 0.5 V_AC, 25 °C, 1 MHz
Capacitance	10 µF (15 A, 100 kHz, 85 °C) ― 12 µF (15 A, 100 kHz, 85 °C) ― 18 µF (15 A, 100 kHz, 85 °C)	10 µF (15 A, 100 kHz, 85 °C) ― 12 µF (15 A, 100 kHz, 85 °C) ― 18 µF (15 A, 100 kHz, 85 °C)	0.47 … 1 µF ③	0.47 … 1 µF ③	0.6 … 6 µF (C_eff) 1 … 10 µF (C_nom)	0.13 … 1.3 µF (C_eff) 0.25 … 2.5 µF (C_nom)
Mounting type, terminals	Parallel wire leads	Parallel wire leads	SMD	SMD	SMD / Leadframes	SMD / Leadframes
Volume	6.6 cm³	6.6 cm³	0.07 … 0.15 cm³ ④	0.07 … 0.15 cm³ ④	0.23 … 2.02 cm³	0.23 … 2.02 cm³
Height	19 mm	19 mm	2.5 … 5.0 mm	2.5 … 5.0 mm	4.0 … 9.1 mm	4.0 … 9.1 mm
	Products	Products	Products	Products	Products	Products

Customized DC-link Capacitors for HV Traction Inverter

Focused on high volume projects
Robust thermal and mechanical designs
High power density
Wide temperature ranges
Ultra low ESR & ESL designs
Complies with highest automotive requirements

For high volume requests contact your local sales or send a product inquiry

Further information about TDK Film Capacitors

Remarks

① other key characteristics like, life time, resonant frequency, ESL, dV/dt, tolerance depend much on customer solution and have to be evaluated individually
② same item as 400 V, but series + parallel connection needed, means Key Characteristics are changing
③ Cap value depends on applied voltage
④ Volume of single item
⑤ Customized solution upon request

Capacitors for DC Link circuits

Inverter applications for the 12 V and 48 V electrical system in the range of 500 W

like HVAC Fan, Wiper, ABS/ESR Pump, etc.

Inverter applications for the 12 V and 48 V electrical system in the range of 1 kW and higher

like Power Steering, Engine Fan, Climate Compressor, eCharger, etc.

Integrated or Belt-Starter-Generator and Motors for a power of 12 to 20 kW and higher in the 48 V electrical system

Key Characteristics ①

On Board Charger for PHEV and BEV

DC/DC Converter HV to 12 V

HV Heater for 5 kW and higher

HV Auxilliaries in the range of 1 kW

like Climate Compressor, Water Pump and Suspension

Customized DC-link Capacitors for HV Traction Inverter

Remarks

SMD Hybrid Polymer Aluminum Electrolytic Capacitors

Features

Construction

Single-ended Aluminum Electrolytic Capacitors

Features

Construction

Single-ended Aluminum Electrolytic Capacitors

Features

Construction

Axial-lead/Soldering Star Aluminum Electrolytic Capacitors

Features

Construction

B41689 Series (Axial-lead capacitors)

B41789 Series (Soldering star capacitors)

Metallized Polyester Film Capacitors (MKT)

Features

Construction

Multilayer Ceramic Chip Capacitors

CGA6P3X7S1H106K250AB

Features

Electrical Characteristics

CKG57NX7R1E107M500JJ

Features

Electrical Characteristics

Multilayer Ceramic Chip Capacitors

CGA6M3X7S2A475K200AB

Features

Electrical Characteristics

CKG57NX7S2A226M500JJ

Features

Electrical Characteristics

Axial-lead/Soldering Star Hybrid Polymer Aluminum Electrolytic Capacitors

Features

Construction

B40600 Series (Axial-lead capacitors)

B40700 Series (Soldering star capacitors)

SMD Hybrid Polymer Aluminum Electrolytic Capacitors

Features

Construction

Axial-lead/Soldering Star Aluminum Electrolytic Capacitors

Features

Construction

B41689 Series (Axial-lead capacitors)

B41789 Series (Soldering star capacitors)

Axial-lead/Soldering Star Aluminum Electrolytic Capacitors

Features

Construction

B41689 Series (Axial-lead capacitors)

B41789 Series (Soldering star capacitors)

Hybrid Polymer Aluminum Electrolytic Capacitors

Features

Construction

B40640 Series (Axial-lead capacitors)

B40740 Series (Soldering star capacitors)

Large-size Aluminum Electrolytic Capacitors

Features

Construction

Large-size Aluminum Electrolytic Capacitors

Features

Construction

Metallized Polypropylene Capacitors (MKP/MFP)

B32674 … B32678 Series (High Density Type)

Features

Construction

B32674 Series (lead spacing 27.5 mm)

B32676 Series (lead spacing 37.5 mm)

Inverter applications for the 12 V and 48 V electrical system in the range of 500 W

Inverter applications for the 12 V and 48 V electrical system in the range of 1 kW and higher

Integrated or Belt-Starter-Generator and Motors for a power of 12 to 20 kW and higher in the 48 V electrical system

DC/DC Converter HV to 12 V

HV Heater for 5 kW and higher

HV Auxilliaries in the range of 1 kW