Product Overview
The CKST/CKSTT Series SMD Molding Power Inductors are designed for high-density installation and offer superior electromagnetic interference (EMI) resistance with ultra-low buzzing. These compact inductors deliver large current capabilities and maintain excellent temperature rise and saturation current characteristics even in high-frequency and high-temperature environments. Constructed with low-loss alloy powder die casting, they feature low resistance, a firm structure, and high product precision. Applications include PADs, laptops, desktops, servers, audio equipment, networking devices, security systems, mobile phones, smart home devices, and energy storage equipment.
Product Attributes
- Brand: Not specified
- Series: CKST, CKSTT
- Type: SMD Molding Power Inductor
- Construction: Magnetic shield structure, closed magnetic circuit
- Material: Low loss alloy powder die casting
- Environmental Characteristics: Strong anti-electromagnetic interference, ultra low buzzer, excellent temperature rise and saturation current characteristics in high frequency and high temperature environments.
- Operating Temperature Range: -40 to +125 (Including self-temperature rise)
- Absolute Maximum Voltage: DC 25V (for most models), DC 75V (for CKST0502, CKST0503, CKST0603, CKST0605, CKST1003, CKST1004, CKST1005, CKST1205, CKST1206, CKST1707), DC 30V (for CKSTF0615, CKSTF0817)
Technical Specifications
Dimensions and Models:
| TYPE () | A (mm) | B (mm) | C Max (mm) | D (mm) | E (mm) | Figure |
|---|---|---|---|---|---|---|
| CKST141208 | 1.40.2 | 1.20.2 | 0.8 | 0.40.2 | / | 1 |
| CKST160808 | 1.60.2 | 0.80.2 | 0.8 | 0.50.2 | / | 1 |
| CKST2012065 | 2.00.2 | 1.20.2 | 0.65 | 0.60.3 | / | 1 |
| CKST201208 | 2.00.2 | 1.20.2 | 0.8 | 0.60.3 | / | 1 |
| CKST201210 | 2.00.2 | 1.20.2 | 1.0 | 0.60.3 | / | 1 |
| CKST201608 | 2.00.2 | 1.60.2 | 0.8 | 0.50.2 | / | 1 |
| CKST201610 | 2.00.2 | 1.60.2 | 1.0 | 0.50.2 | / | 1 |
| CKST252008 | 2.50.2 | 2.00.2 | 0.8 | 0.80.3 | / | 1 |
| CKST252010 | 2.50.2 | 2.00.2 | 1.0 | 0.80.3 | / | 1 |
| CKST252012 | 2.50.2 | 2.00.2 | 1.2 | 0.80.3 | / | 1 |
| CKST322512 | 3.20.2 | 2.50.2 | 1.2 | 0.80.3 | / | 1 |
| CKST322520 | 3.20.2 | 2.50.2 | 2.0 | 0.80.3 | / | 1 |
| CKST353220 | 3.50.2 | 3.20.2 | 2.0 | 0.70.2 | / | 1 |
| CKSTT0410 | 4.00.3 | 4.00.3 | 1.0 | 1.10.3 | / | 1 |
| CKST0402 | 4.60.25 | 4.10.35 | 2.0 | 0.760.3 | 1.50.3 | 2 |
| CKST0502 | 5.70.25 | 5.10.35 | 2.0 | 1.30.3 | 2.30.3 | 2 |
| CKST0503 | 5.70.25 | 5.10.35 | 3.0 | 1.30.3 | 2.30.3 | 2 |
| CKSTT0610 | 6.40.2 | 6.60.2 | 1.0 | 1.80.3 | / | 1 |
| CKSTF0615 | 6.40.2 | 6.60.2 | 1.5 | 2.10.3 | / | 1 |
| CKST0603 | 7.4 Max | 6.60.2 | 3.0 | 1.60.3 | 3.00.2 | 2 |
| CKST0605 | 7.5 Max | 6.60.2 | 5.0 | 1.60.3 | 3.00.2 | 2 |
| CKSTF0817 | 7.80.2 | 7.80.2 | 1.7 | 2.60.3 | / | 1 |
| CKST1003 | 11.6 Max. | 10.10.3 | 3.0 | 2.50.5 | 3.00.5 | 2 |
| CKST1004 | 11.6 Max. | 10.10.3 | 4.0 | 2.50.5 | 3.00.5 | 2 |
| CKST1005 | 11.6 Max. | 10.10.3 | 5.0 | 2.50.5 | 3.00.5 | 2 |
| CKST1205 | 13.8 Max. | 12.60.3 | 5.0 | 2.70.7 | 3.00.5/3.50.5 | 2 |
| CKST1206 | 13.8 Max. | 12.60.3 | 6.0 | 2.70.7 | 3.00.5/3.50.5 | 2 |
| CKST1707 | 17.51.0 | 17.5 Max. | 7.0 | 2.50.5 | 11.940.3 | 2 |
Recommended Patterns (Unit: mm):
| TYPE () | H (mm) | I (mm) | J (mm) |
|---|---|---|---|
| CKST141208 | 1.1 | 0.6 | 1.5 |
| CKST160808 | 1.2 | 0.8 | 1.0 |
| CKST2012065 | 1.5 | 1 | 1.5 |
| CKST201208 | 1.5 | 1 | 1.5 |
| CKST201210 | 1.5 | 1 | 1.5 |
| CKST201608 | 1.5 | 1 | 1.8 |
| CKST201610 | 1.5 | 1 | 1.8 |
| CKST252008 | 2 | 1.2 | 2.2 |
| CKST252010 | 2 | 1.2 | 2.2 |
| CKST252012 | 2 | 1.2 | 2.2 |
| CKST322512 | 2.5 | 1.2 | 2.9 |
| CKST322520 | 2.5 | 1.2 | 2.9 |
| CKST353220 | 3 | 1 | 3.5 |
| CKSTT0410 | 3.5 | 1.5 | 4.5 |
| CKST0402 | 3.7 | 1.26 | 2.0 |
| CKST0502 | 4.1 | 1.9 | 2.8 |
| CKST0503 | 4.1 | 1.9 | 2.8 |
| CKSTT0610 | 5.0 | 2.2 | 7.0 |
| CKSTF0615 | 5.0 | 2.5 | 7.0 |
| CKST0603 | 6.05 | 2.35 | 3.5 |
| CKST0605 | 6.05 | 2.35 | 3.5 |
| CKSTF0817 | 5.5 | 3.0 | 8.4 |
| CKST1003 | 9.5 | 3.5 | 4.0 |
| CKST1004 | 9.5 | 3.5 | 4.0 |
| CKST1005 | 9.5 | 3.5 | 4.0 |
| CKST1205 | 10.5 | 4 | 3.0mm (E), 4.0mm (J) |
| CKST1206 | 10.5 | 4 | 3.5mm (E), 4.5mm (J) |
| CKST1707 | 13.8 | 3.4 | 12.6 |
Specification Table (Example for CKST141208):
| PART NUMBER () | INDUCTANCE () (H) | DCR (m) @25 () | Saturation Current IsatA () | Heat Rating Current Irms (A) () |
|---|---|---|---|---|
| CKST141208 Series | ||||
| CKST141208-0.24uH/M | 0.2420% | 7.0 (Typical) / 6.5 (Maximum) | 5.3 (Typical) / 4.9 (Maximum) | 20.0 (Typical) / 23.0 (Maximum) |
| CKST141208-0.33uH/M | 0.3320% | 5.0 (Typical) / 4.5 (Maximum) | 4.0 (Typical) / 3.6 (Maximum) | 27.0 (Typical) / 30.0 (Maximum) |
| CKST141208-0.47uH/M | 0.4720% | 5.0 (Typical) / 4.5 (Maximum) | 3.2 (Typical) / 3.0 (Maximum) | 39.0 (Typical) / 44.0 (Maximum) |
Test Conditions and Remarks:
- All test data is referenced to 25 ambient.
- Test Condition: 1MHz, 1Vrms (for most series); 100kHz, 1Vrms (for CKST0502, CKST0503, CKST0603, CKST0605, CKST1003, CKST1004, CKST1005, CKST1205, CKST1206, CKST1707).
- Isat: Max.Value, DC current at which the inductance drops less than 30% from its value without current; Typ. Value, DC current at which the inductance drops 30% from its value without current. (For CKST0502, CKST0503, CKST0603, CKST0605, CKST1003, CKST1004, CKST1005, CKST1205, CKST1206, CKST1707: DC current (A) that will cause L0 to drop approximately 30% Typ.).
- Irms: For Max. Value, T40; for Typ. Value, T is approximate 40. (For CKST0502, CKST0503, CKST0603, CKST0605, CKST1003, CKST1004, CKST1005, CKST1205, CKST1206, CKST1707: DC current (A) that will cause an approximate T of 40).
- -B indicate non-leadframe.
Packaging Specification:
| TYPE () | A (mm) | B (mm) | C (mm) | Quantity (Pcs/Reel) ( (/)) |
|---|---|---|---|---|
| CKST141208 | 178 | 58 | 13 | 3000 |
| CKST160808 | 178 | 58 | 13 | 3000 |
| CKST2012065 | 178 | 58 | 13 | 3000 |
| CKST201208 | 178 | 58 | 13 | 3000 |
| CKST201210 | 178 | 58 | 13 | 3000 |
| CKST201608 | 178 | 58 | 13 | 3000 |
| CKST201610 | 178 | 58 | 13 | 3000 |
| CKST252008 | 178 | 58 | 13 | 3000 |
| CKST252010 | 178 | 58 | 13 | 3000 |
| CKST252012 | 178 | 58 | 13 | 3000 |
| CKST322512 | 178 | 58 | 13 | 2000 |
| CKST322520 | 178 | 58 | 13 | 2000 |
| CKST353220 | 330 | 100 | 13 | 3000 |
| CKSTT0410 | 330 | 100 | 13 | 3000 |
| CKST0402 | 330 | 100 | 13 | 3000 |
| CKST0502 | 330 | 100 | 13 | 2000 |
| CKST0503 | 330 | 100 | 13 | 1500 |
| CKSTT0610 | 330 | 100 | 13 | 2000 |
| CKSTF0615 | 330 | 100 | 13 | 2000 |
| CKST0603 | 330 | 100 | 13 | 1500 |
| CKST0605 | 330 | 100 | 13 | 1000 |
| CKSTF0817 | 330 | 100 | 13 | 2000 |
| CKST1003 | 330 | 100 | 13 | 1000 |
| CKST1004 | 330 | 100 | 13 | 1000 |
| CKST1005 | 330 | 100 | 13 | 800 |
| CKST1205 | 330 | 100 | 13 | 400 |
| CKST1206 | 330 | 100 | 13 | 400 |
| CKST1707 | 330 | 100 | 13 | 300 |
Reel Dimension (mm): 220 x 220
2410121505_CENKER-CKST10045-47uH-M_C5292039.pdf
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