Reference Standard	GB/T 17702, IEC 61071
Climatic category	40/85/56
Operating temperature range (max. temperature of case surface)	-40～85℃
	-40～85℃
Rated Voltage	630~3000Vdc
Capacitance Range	0.047~9.0μF
Capacitance Tolerance	±5%, ±10%
Voltage Proof	1.6Un 10s
Dissipation Factor	≤0.0005 (1kHz, 20℃)
Insulation Resistance	≥100,000MΩ, Cn≤0.33μF
	≥30,000s, Cn＞0.33μF
	(20℃, 100Vdc, 1min)
Maximum repetitive inrush current Î	5,000 A
Maximum pulse current Îs	15,000 A (≤30ms per time, no more than 1,000 times)
Equivalent series resistance ESR	≤0.40mΩ@10kHz
Ls	≤15nH
Installation	Any direction
Operation Lifetime	≥100,000 h (@Un, θhs=70℃)

1000Vdc (500Vac)
Cn(μF)	W±1.0	H±1.0	T±1.0	dV/dt(V/μs)	Î(A)	ESR @100kHz(mΩ)	Ls(nH)	Imax @100kHz 70℃(A)
0.47	37	25	15	1300	611	5	23	14
0.47	32	29	19	2200	1034	4	15	21
0.68	37	30	16	1300	884	5	23	15
0.82	37	30	16	1300	1066	5	23	16
1	37	34	20	1300	1300	4.5	23	17
1.2	37	34	20	1300	1560	4.5	23	17
1.2	42	40	20	850	1020	4.5	29	16
1.5	42	40	20	850	1275	4.5	29	16
2	42	44	24	850	1700	4.5	29	17
2.2	42	44	24	850	1870	4	29	20
2.5	42	45	30	850	2125	4	29	21
3	42	45	30	850	2550	4	29	21.5
3.3	42	43	42	850	2805	4	29	22
3.3	57	45	30	500	1650	4	33	20
4	57	45	30	500	2000	4	33	21
4.7	57	50	35	500	2350	4	33	22
5	57	50	35	500	2500	4	33	23
1600Vdc (600Vac)
Cn(μF)	W±1.0	H±1.0	T±1.0	dV/dt(V/μs)	Î(A)	ESR @100kHz(mΩ)	Ls(nH)	Imax @100kHz 70℃(A)
0.33	37	25	15	1500	495	4.5	23	15
0.47	37	30	16	1500	705	4.5	23	16
0.68	37	34	20	1500	1020	4.5	23	17
0.75	37	34	20	1500	1120	4.5	23	18
0.82	42	40	20	950	779	4	29	18
1	42	40	20	950	950	4	29	19
1.2	42	44	24	950	1140	4	29	19
1.5	42	44	24	950	1425	4	29	19.5
2	42	45	30	950	1900	4	29	20
2.2	42	43	42	950	2090	4	29	21
2.5	42	43	42	950	2375	4	29	22
2.2	57	45	30	600	1320	3.8	33	20
2.5	57	45	30	950	1500	3.8	33	21
3	57	45	30	950	1800	3.8	33	22
3.3	57	50	35	950	1980	3.8	33	23
4	57	50	35	950	2400	3.8	33	24
2000Vdc (700Vac)
Cn(μF)	W±1.0	H±1.0	T±1.0	dV/dt(V/μs)	Î(A)	ESR @100kHz(mΩ)	Ls(nH)	Imax @100kHz 70℃(A)
0.1	37	25	15	2241	224	8	23	14
0.15	37	25	15	2241	336	8	23	15
0.22	37	30	16	2241	493	6	23	15.5
0.33	37	34	20	2241	740	6	23	16
0.47	42	40	20	1300	611	4	29	17
0.56	42	44	24	1300	728	4	29	18
0.68	42	44	24	1300	884	3.5	29	18.5
0.82	42	45	30	1300	1066	3.5	29	19
1	42	43	42	1300	1300	3.5	29	21
1	57	45	30	850	850	4	33	24
1.2	57	45	30	850	1020	4	33	23
1.5	57	50	50	850	1275	4	33	24
3000Vdc (750Vac)
Cn(μF)	W±1.0	H±1.0	T±1.0	dV/dt(V/μs)	Î(A)	ESR @100kHz(mΩ)	Ls(nH)	Imax @100kHz 70℃(A)
0.047	37	25	15	3361	158	8.5	23	13
0.068	37	30	16	3361	229	8	23	14
0.1	37	34	20	3361	336	7.5	23	15
0.15	37	34	20	3361	504	7	23	15.5
0.22	42	40	20	2050	451	5	29	16
0.33	42	45	30	2050	677	4.5	29	16.5
0.47	42	43	42	2050	964	4	29	18
0.47	57	45	30	1200	564	4	33	18.5
0.68	57	50	35	1200	816	4	33	19
0.82	57	50	35	1200	984	3.5	33	20

◆ Product Advantages
- Deeply Optimized for IGBT Snubber Protection Circuits: Product material selection, structural design, and electrical parameters are comprehensively optimized for IGBT snubber circuits, effectively absorbing voltage spikes and high-frequency oscillations generated during high-speed IGBT switching, fundamentally protecting IGBT power devices from over-voltage breakdown damage and maximizing power module service life
- Ultra-Low Loss with Extremely Small Internal Temperature Rise: Extremely low dielectric dissipation factor (tanδ) results in very limited internal temperature rise even under continuous high-voltage high-frequency pulse circuit operating conditions, effectively preventing electrical performance degradation and insulation failure caused by heat accumulation, ensuring long-term reliable operation in densely packed power modules
- Excellent Flame Retardancy for Intrinsic Safety: Housing and encapsulation materials use high-grade flame-retardant materials meeting UL94-V0 flame retardancy standards, not supporting combustion or flame propagation under abnormal conditions, significantly enhancing the passive safety of the overall system
- Outstanding High-Frequency Characteristics with Lasting Stable Snubbing Effect: Extremely low equivalent series inductance (ESL) ensures excellent snubber characteristics are maintained across a wide frequency range from power frequency to high frequency, without degradation of snubbing effect as operating frequency increases
- Comprehensive Compatibility with High-Voltage High-Frequency Applications: Voltage ratings cover high-voltage DC application ranges, compatible with the actual high DC voltage levels of mainstream IGBT power modules, with extensive application coverage

◆ Key Selling Points
- Maximizing IGBT Protection and Significantly Reducing Power Module Failure Rates: Voltage spikes are the primary cause of IGBT over-voltage failure; using this product effectively suppresses switching spike voltages within safe limits, significantly reducing IGBT field failure rates from over-voltage and greatly minimizing unplanned downtime and maintenance costs
- Compact Size Supporting High-Density Integration Within Modules: Refined structural design facilitates direct integration inside or immediately adjacent to IGBT modules with extremely short wiring, minimizing circuit parasitic parameters and achieving optimal snubbing effectiveness
- Excellent Batch Parameter Consistency for Large-Scale Automated Production: Strict manufacturing process control ensures high inter-batch consistency of key parameters including capacitance, ESR, and ESL, suitable for large-scale automated assembly and quality control
- Widely Certified by International Electrical Safety Standards: Product electrical safety performance meets IEC, UL, and other internationally authoritative standard requirements, directly applicable in end products exported to European, American, and other markets

◆ Primary Applications
- Built-in snubber protection circuits for IGBT power modules
- DC bus snubber for high-voltage frequency converters and high-power inverters
- Switching protection for wind and photovoltaic grid-connected converters
- Induction heating equipment and industrial welding inverter power supplies
- Protection for electric vehicle and rail transit traction inverter systems

Q: Which markets does the product mainly export to?

Our products are sold worldwide to 30+ countries and regions, including the United States, Germany, Japan, Spain, Italy, the United Kingdom, South Korea, Australia and Canada, etc.

Q: How to arrange the transportation of goods?

The main mode of transportation is by sea, which is convenient and efficient. If urgent delivery is required, we can also arrange air transportation through the Ningbo or Shanghai airports.

Q: What are the payment methods available?

During the quotation process, the trade terms (such as FOB, CIF, etc.) will be confirmed. For mass production, a 30% advance payment is usually required, and the remaining amount will be paid upon presentation of the copy of the bill of lading. The main payment method accepted is T/T, and L/C can also be negotiated for use.

Q: How to ensure product quality?

We implement full-process quality management. After each process, there is an inspection. The finished products are 100% subject to final inspection in accordance with customer requirements and international standards.

Q: What is the size of the company and its personnel structure?

AnHui JuanKuang Electric Co., Ltd. is IGBT Snubber Capacitors Factory. The company currently has over 300 employees, among whom there are about 10 professional technicians.

Q: Do you support customized production?

Customized production is our core business. We can develop and manufacture according to the drawings or samples you provide. Custom IGBT Snubber Capacitors

Q: Are you a factory or a trading company?

We are a direct manufacturer with independent production capabilities. We also have an international sales department to provide a complete service from production to export.