The CMKD-0630A Series is a high-performance SMD Molded Inductor in a standard 7.0 mm × 6.6 mm footprint with a 3.0mm profile. This series is specifically engineered with an Alloy iron powder core ("A" material) to provide a versatile balance of performance and efficiency.

This series offers an excellent high saturation current (Isat) of up to 34.0A and a very low DCR (down to 3.0mΩ max), minimizing core loss and maximizing efficiency. Its one-piece, magnetically shielded construction ensures low EMI and minimal core loss, making it a robust and reliable choice for high-frequency (up to 5MHz) DC-DC converters. The CMKD-0630A is a primary power electronic component for VRMs and multi-phase regulators. The specs of this SMD Molded Inductor are key to maximizing power efficiency in demanding circuits, and it is a leading shielded power inductor.

Key Features

Alloy Iron Powder Core: Utilizes "A" material for a balanced performance profile.

High Saturation Current: Rated up to 34.0A.

Low Profile: 3.0mm maximum height.

Low DCR: As low as 3.0mΩ (max) for high efficiency.

Molded Construction: Magnetically shielded for low EMI.

High Frequency Operation: Suitable for frequencies up to 5MHz.

Halogen-Free & RoHS Compliant.

Operating Temperature: -55°C to +125°C.

Applications

The CMKD-0630A's balanced performance is ideal for a wide range of high-current power supplies:

Voltage Regulator Module (VRM)

Multi-phase regulators

Notebook and server regulators

Point-of-load (POL) modules

SSD modules

Electrical Characteristics

Part No.	Inductance (L₀) (µH) (±20%)	Test condition	DCR (mΩ) TYP.	DCR (mΩ) MAX.	Isat (A) TYP.	Idc (A) TYP.
CMKD-0630A-R22M	0.22	100 kHz, 1V	2.5	3.0	34.0	24.0
CMKD-0630A-R24M	0.24	100 kHz, 1V	2.6	3.1	26.0	23.0
CMKD-0630A-R33M	0.33	100 kHz, 1V	3.5	3.0	25.0	21.0
CMKD-0630A-R47M	0.47	100 kHz, 1V	3.5	4.1	20.0	18.0
CMKD-0630A-R56M	0.56	100 kHz, 1V	4.5	3.9	18.0	16.5
CMKD-0630A-R68M	0.68	100 kHz, 1V	4.8	5.3	17.0	16.0
CMKD-0630A-R82M	0.82	100 kHz, 1V	6.0	5.4	16.0	14.0
CMKD-0630A-1R0M	1.0	100 kHz, 1V	6.7	7.4	15.0	12.0
CMKD-0630A-1R5M	1.5	100 kHz, 1V	12.1	10.6	14.0	12.0
CMKD-0630A-2R2M	2.2	100 kHz, 1V	13.5	15.0	10.0	9.5
CMKD-0630A-3R3M	3.3	100 kHz, 1V	18.0	22.0	9.5	8.5
CMKD-0630A-4R7M	4.7	100 kHz, 1V	33.0	28.0	6.5	6.0
CMKD-0630A-5R6M	5.6	100 kHz, 1V	42.0	37.0	6.0	5.0
CMKD-0630A-6R8M	6.8	100 kHz, 1V	48.0	42.5	6.0	5.0
CMKD-0630A-8R2M	8.2	100 kHz, 1V	60.0	54.0	6.0	5.0
CMKD-0630A-100M	10.0	100 kHz, 1V	62.0	67.0	5.5	4.5
CMKD-0630A-150M	15.0	100 kHz, 1V	115.0	104.0	4.5	3.0
CMKD-0630A-220M	22.0	100 kHz, 1V	180.0	200.0	3.0	2.3
CMKD-0630A-330M	33.0	100 kHz, 1V	280.0	310.0	2.5	2.0

Notes:

Test Conditions: All test data is referenced to 25°C ambient.

Operating Temperature Range: -55°C to +125°C (ambient plus self-temperature rise).

Isat (Saturation Current): DC current (A) that will cause L₀ to drop approximately 30%.

Idc (Rating Current): DC current (A) that will cause an approximate ΔT of 40°C.

Temperature Limit: The part temperature (ambient + temp rise) should not exceed 125°C under worst-case operating conditions.

Performance Graphs

product-785-613

product-850-379

Shape and Dimensions

product-957-596

product-953-537

Reliability

This product is qualified against a series of mechanical and endurance tests, including Solder Heat Proof, Thermal Shock, Humidity Resistance, and Vibration. (See PDF page 24 for full details).

Packaging

Packaging: Embossed Carrier Tape

Reel Diameter: 330 mm

Tape Width: 16 mm

Quantity/Reel: 1500 pcs

Solder Reflow Profile

Preheat condition: 150~200°C / 60~120 sec.

Allowed time above 217°C: 60~90 sec.

Max temp: 260°C (compliant with J-STD-020D)

Max time at max temp: 10 sec.

Allowed Reflow time: 2x max

Solder paste: Sn/3.0Ag/0.5Cu
(Note: This profile is for qualification only. Actual profiles must be based on the customer's specific board design and process.)