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The Cenker CKCS8040-680uH/M is a SMD Power Inductor designed for general electronic equipment applications. It operates within a temperature range of -40 to +125 and is suitable for use in audio-visual entertainment, home appliances, computers, office automation, communications, power modules, LED lighting, measuring equipment, machine tools, and industrial control boards. The product is sensitive to impact and requires careful handling during PCB design and assembly to avoid magnetic interference and ensure optimal performance.
Product Attributes
Brand: Cenker
Product Type: SMD Power Inductor
Series Name: CKCS
Marking: 681 (Black ink)
Core Material: Ferrite
Wire Material: Copper Wire
Solder Material: Sn
Glue Material: Epoxy
Marking Ink: Epoxy
Moisture Sensitivity Level (MSL): MSL, level 1
Origin: Shenzhen, China (Shenzhen Cenker Technology Group Co., Ltd.)
Technical Specifications
Specification
Value
Test Condition
Notes
Cenker P/N
CKCS8040-680uH/M
Drawing No.
SP-CK112-00059651
Dimensions (A)
8.0 0.3 mm
Dimensions (B)
4.2 mm (Max.)
Dimensions (C)
8.0 0.3 mm
Dimensions (D)
3.6 0.3 mm
Dimensions (E)
2.2 0.3 mm
Nominal Inductance
680 uH
Inductance Tolerance
20%
100kHz / 1V
DCR (DC Resistance)
2
at 25
30%
Isat (Saturation Current)
0.5 A
L0A*70% Ref. 100kHz / 1V
DC current at which inductance drops ~30%
Irms (RMS Current)
0.45 A (Max.)
T 40
DC current causing temp rise from 25 ambient
Operating Temperature
-40 ~ +125
(Including self-temperature rise)
Storage Temperature
-40 ~ +125
Maximum Voltage
100V DC
Recommended PCB Pattern
See Diagram
Reflow Soldering Profile
See Diagram
Peak: 260 (20-40 Sec)
Iron Soldering
Max. 30W, 350 Max., 3 Sec Max.
Pre-heating: 150, 1 Min
Packaging Quantity (Reel)
1000 Pcs
Packaging Quantity (Box)
3000 Pcs
(3 Reel/Box)
Packaging Quantity (Carton)
6000 Pcs
(2 Box/Carton)
Matters Needing Attention:
Consider non-magnetic shielded component placement to avoid magnetic interference.
Keep away from magnets or objects with magnetic force.
Avoid storage in high temperature, high humidity, dusty, or corrosive environments.
Allow for thermal design margin due to self-heating during operation.
Use anti-static wrist straps during handling.
Avoid direct contact with terminals to prevent solderability issues due to hand grease.
Do not excessively bend terminals to prevent breakage.
The product is sensitive to direct impact, which can damage the magnetic core.
When potting or gluing, consider potential stress on the core and skeleton, and check for material compatibility to avoid performance degradation or damage.
Surface rust may occur on alloy or non-coated products in humid environments but does not affect characteristics.
This product is intended for general electronic equipment. For specialized applications (e.g., automotive, medical, military, aerospace, submarine), contact the sales department for consultation.
Storage within 12 months under conditions of -10 to 40C and 70% RH is recommended to maintain terminal electrode solderability.
