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Specifications
Current - Saturation (Isat):
7.1A
Mfr. Part #:
CMLW8040S2R2NST
Package:
SMD,8x8mm
Key Attributes
Model Number:
CMLW8040S2R2NST
Product Description
Product Overview
The CMLW8040S2R2NST is a high-performance magnetic component from Cybermax, designed for reliable operation in various electronic applications. This specification document outlines its electrical and general characteristics, dimensional drawings, appearance standards, reliability test results, soldering conditions, and packaging details. Cybermax ensures that the product meets the specifications outlined in this approval document.
Product Attributes
- Brand: Cybermax
- Manufacturer: (Shenzhen Cybermax Magnetic Component Co., Ltd.)
- Origin: China
- Date Code: 2025-08-20
Technical Specifications
| Item | Specification | Test Frequency/Conditions |
| Inductance (L) | 2.2 H 30% | 100KHz/1V, Ta=25 |
| DC Resistance (DCR) | 12.0 m 30% | Ta=25 |
| Saturation Current (Isat) | 7.1 A Max. | 100KHz/1V, L/L30% |
| RMS Current (Irms) | 5.15 A Max. | 100KHz/1V, T40 |
| Operating Temperature | -40~+125 | |
| Storage Temperature | -40~ +85, RH 70% (Max.) |
Dimensions & Layout
| Dimension | Value (mm) |
| A | 8.00.3 |
| B | 8.00.3 |
| C | 4.2 Max |
| D | 6.30.3 |
| E | 2.00.3 |
| F | 4.00.3 |
| Pad Layout a (Typ.) | 3.8 |
| Pad Layout b (Typ.) | 2.2 |
| Pad Layout c (Typ.) | 7.5 |
Reliability Test Summary
| Test Item | Specification | Test Condition |
| High temperature Storage test | 1. No significant defects in appearance. 2. L/L10% 3. DCR/DCR10% | Temperature: 1255, Time: 962 hours |
| Low temperature Storage test | 1. No significant defects in appearance. 2. L/L10% 3. DCR/DCR10% | Temperature: -405, Time: 962 hours |
| Humidity test | 1. No significant defects in appearance. 2. L/L10% 3. DCR/DCR10% | Temperature: 402, Humidity: 933%RH, Time: 962 hours |
| Solderability test | Terminals must have 95% minimum solder coverage | Dip pads in flux then dip in solder pot at 2455C for 5 seconds (lead free solder, rosin flux) |
| Heat endurance of flow soldering | 1. No significant defects in appearance. 2. L/L10% 3. DCR/DCR10% | Peak temperature: 260+0/-5 (Reflow twice) |
| Vibration test | 1. No significant defects in appearance. 2. No short and no open. | Frequency 10~55~10Hz, Amplitude 1.5mm, 1 min/cycle in X, Y, Z directions for 2 hours each (total 6 hours) |
| Terminal strength push test | Meet the above requirements without any loose terminals. | Applied force: 10N, Duration: 10 seconds (after soldering to PCB) |
Soldering Conditions
| Process | Details |
| Reflow Soldering | Solder: Sn-3.0Ag-0.5Cu Flux: Rosin-based flux (not strongly acidic, chlorine content 0.2wt%, not water-soluble) |
| Soldering Iron Rework | Preheating: 150 for 1 minute. Tip Temperature: 350; Power Output: 30W; Tip Diameter: 1.0mm; Soldering Time: 3 seconds. |
Packaging
| Type | Description |
| Standard Packing Quantity | 1000 pcs/reel |
| Reel Dimensions (A) | 3302.0 mm |
| Peel-off Strength | 10 ~ 100gf |
| Peel-off Angle | 165-180 |
| Peel-off Speed | 300mm/min |
| Outer Box (1.1) | 36*36*23 cm (2 inner boxes per outer box) |
| Inner Box (1.2) | 33.5*33.5*9 cm (5 reels per inner box) |
| Outer Box Material (1.3) | A=A |
| Inner Box Material (1.4) | B=B |
| Inner Packaging (1.5) | Each reel in an antistatic bag |
| Desiccant (1.6) | One desiccant bag inside each antistatic bag |
| Labeling (1.7, 1.8) | Product details label on each reel; shipping labels on inner/outer boxes with actual content details. |
| Shipping Label Size (1.9) | Length: 39mm, Width: 29mm (customer specific requirements apply) |
2509180925_Cybermax-CMLW8040S2R2NST_C431372.pdf
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