Beijing Silk Road Enterprise Management Services Co., Ltd.
| Current - Saturation (Isat) | 500mA |
| Description | 500mA SMD,4x4mm Fixed Inductors RoHS |
| Mfr. Part # | SNR4030-221MT |
| Package | SMD,4x4mm |
| Model Number | SNR4030-221MT |
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Product Specification
| Current - Saturation (Isat) | 500mA | Description | 500mA SMD,4x4mm Fixed Inductors RoHS |
| Mfr. Part # | SNR4030-221MT | Package | SMD,4x4mm |
| Model Number | SNR4030-221MT |
The SNR4030 Series is an automatic assembly constructed power inductor, featuring magnetic resin shielding to significantly reduce buzz noise to ultra-low levels. Designed for high current and low DCR applications, these inductors utilize a closed magnetic circuit structure that minimizes leakage flux and enhances EMI resistance. Their compact size saves PCB real estate and reduces power consumption. Metallization on the ferrite core ensures excellent shock resistance and durability. These inductors are widely used in LED backlights, flat-screen TVs, notebooks, servers, graphic cards, automotive systems, and DC-DC converters.
General Specifications:
| Item | Description |
|---|---|
| Type | SNR (Shielded SMD Power Inductors) |
| Magnetic Circuit | Closed magnetic circuit design |
| Operating Temperature | -40 to +125 (Including coils self-temperature rise) |
| Test Equipment (Inductance) | HP4284A, HP4285A or equivalent |
| Test Equipment (Current) | HP4284+42841A or equivalent |
| Test Equipment (DCR) | Chroma 16502 or equivalent |
| RoHS/Halogen Free/REACH | Compliant |
Product Identification:
| Component | Description |
|---|---|
| Type | SNR |
| Inductance | e.g., 100 (for 10 H) |
| Inductance Tolerance | M (20%) |
| Dimensions (LWH) | 4030 (4.0 4.0 3.0 mm) |
| Packing | T (Tape & Reel) |
Inductance Tolerance Codes: J: 5%, K: 10%, L: 15%, M: 20%, P: 25%, N: 30%
Packing Codes: B: Bulk Package, T: Tape & Reel
Shape and Dimensions:
| Part No | A (mm) | B (mm) | C (mm) | D (mm) | E (mm) | F (mm) | G (mm) | H (mm) |
|---|---|---|---|---|---|---|---|---|
| SNR4030 | 4.00.3 | 4.00.3 | 3.0 Max | 2.10.2 | 3.30.2 | 1.1 Typ | 1.9 Typ | 3.7 Typ |
Electrical Characteristics:
| Part No | L (H) | Inductance @ 100KHz, 1.0V Tol | DCR () Typical | DCR () Max | Saturation Current Isat (A) Max | Temperature Rise Current Irms (A) Max |
|---|---|---|---|---|---|---|
| SNR4030-1R0M | 1.0 | 20% | 0.014 | 0.018 | 5.26 | 4.15 |
| SNR4030-1R2M | 1.2 | 20% | 0.015 | 0.020 | 5.26 | 3.82 |
| SNR4030-1R5M | 1.5 | 20% | 0.020 | 0.026 | 4.84 | 3.34 |
| SNR4030-1R8M | 1.8 | 20% | 0.025 | 0.033 | 4.84 | 3.20 |
| SNR4030-2R2M | 2.2 | 20% | 0.030 | 0.039 | 4.40 | 2.95 |
| SNR4030-3R3M | 3.3 | 20% | 0.040 | 0.050 | 3.30 | 2.40 |
| SNR4030-4R7M | 4.7 | 20% | 0.060 | 0.076 | 2.90 | 2.00 |
| SNR4030-5R6M | 5.6 | 20% | 0.073 | 0.091 | 2.75 | 1.90 |
| SNR4030-6R8M | 6.8 | 20% | 0.090 | 0.115 | 2.60 | 1.60 |
| SNR4030-8R2M | 8.2 | 20% | 0.095 | 0.122 | 2.10 | 1.60 |
| SNR4030-100M | 10 | 20% | 0.100 | 0.130 | 1.95 | 1.50 |
| SNR4030-120M | 12 | 20% | 0.135 | 0.172 | 1.70 | 1.30 |
| SNR4030-150M | 15 | 20% | 0.190 | 0.230 | 1.65 | 1.11 |
| SNR4030-220M | 22 | 20% | 0.225 | 0.290 | 1.30 | 1.00 |
| SNR4030-330M | 33 | 20% | 0.330 | 0.420 | 1.10 | 0.84 |
| SNR4030-470M | 47 | 20% | 0.445 | 0.570 | 0.95 | 0.72 |
| SNR4030-680M | 68 | 20% | 0.868 | 1.100 | 0.72 | 0.52 |
| SNR4030-820M | 82 | 20% | 1.060 | 1.280 | 0.66 | 0.47 |
| SNR4030-101M | 100 | 20% | 1.150 | 1.480 | 0.60 | 0.45 |
| SNR4030-121M | 120 | 20% | 1.350 | 1.700 | 0.55 | 0.42 |
| SNR4030-151M | 150 | 20% | 1.750 | 2.300 | 0.53 | 0.35 |
| SNR4030-221M | 220 | 20% | 2.400 | 3.200 | 0.50 | 0.35 |
| SNR4030-331M | 330 | 20% | 3.950 | 5.000 | 0.40 | 0.26 |
Definitions:
Packaging:
| Part No. | Tape Dimension W (mm) | Tape Dimension P (mm) | Tape Dimension W1 (mm) | Reel Dimensions A (mm) | Reel Dimensions B (mm) | Reel Dimensions C (mm) | Reel Dimensions D (mm) | REEL (PCS) | Inside Box (PCS) | Outside Carton (PCS) |
|---|---|---|---|---|---|---|---|---|---|---|
| SNR4030 | 12 | 8 | 5.5 | 12.4 | 100 | 13 | 330 | 2000 | 8000 | 32,000 |
Cover Tape Peel Off Condition:
Reliability Testing:
| Item | Requirements | Test Methods and Remarks |
|---|---|---|
| Terminal Strength (SMT) | Meet requirements without any loose terminal. | Pulling test: Defined by terminal area. Solder paste thickness: 0.12mm. Force applied gradually. Keep time: 101s. Speed: 1.0mm/s. |
| Terminal Strength (DIP) | Meet requirements without any loose terminal. | Pull Force: Applied gradually and maintained for 10 seconds. Force varies by terminal diameter. |
| Resistance to Flexure | No visible mechanical damage. | Solder to test jig, apply force. Flexure: 2mm. Speed: 0.5mm/sec. Keep time: 30 sec. |
| Dropping | No case deformation or change in appearance. No short and no open. | Drop packaged products from 1m high in 1 angle, 3 ridges and 6 surfaces, twice in each direction. |
| Solderability | Wetting shall exceed 75% coverage. Terminals must have 95% minimum solder coverage. | Solder temperature: 2402. Duration: 3 sec. Solder: Sn/3.0Ag/0.5Cu. Flux: 25% Resin and 75% ethanol. |
| Vibration | No visible mechanical damage. Inductance change: Within 10%. Q factor change: Within 20%. | Solder to jig, subjected to harmonic motion (10-55 Hz). Applied for 2 hours in 3 perpendicular directions. |
| Thermal Shock | No visible mechanical damage. Inductance change: Within 10% (Mn-Zn: 30%). Q factor change: Within 20%. | 100 cycles of temperature extremes (-55~40 to 85~125). Transforming interval: Max. 20 sec. |
| Low Temperature Storage | No visible mechanical damage. Inductance change: Within 10% (Mn-Zn: 30%). Q factor change: Within 20%. | Temperature: -55~-402. Duration: 962 hours. Stabilize at normal condition before measuring. |
| High Temperature Storage | No visible mechanical damage. Inductance change: Within 10% (Mn-Zn: 30%). Q factor change: Within 20%. | Temperature: 85~1252. Duration: 962 hours. Stabilize at normal condition before measuring. |
| Damp Heat (Steady States) | No visible mechanical damage. Inductance change: Within 10% (Mn-Zn: 30%). Q factor change: Within 20%. | Temperature: 602. Humidity: 90% to 95% RH. Duration: 962 hours. Stabilize at normal condition before measuring. |
| Heat endurance of Reflow soldering | No significant defects in appearance. L/L 10% (Mn-Zn: 30%). Q/Q 30% (SMD series only). DCR/DCR 10%. | Refer to reflow curve, go through reflow twice. Peak temperature: 260+0/-5. |
| Resistance to solvent test | No case deformation or change in appearance or obliteration of marking. | Dip parts into IPA solvent for 50.5Min, dry for 5Min, brush 10 times. |
| Overload test | No smoke, no peculiar smell, no fire during test. Characteristics normal after test. | Apply twice rated current for 5 minutes. |
| Voltage resistance test | No breakdown during test. Characteristics normal after test. | DC1000V, Current: 1mA, Time: 1Min. (For parts with two coils). |
Recommended Reflow Soldering Curve:
The recommended reflow conditions are set according to the soldering equipment. Users should adjust and confirm according to their specific environment/equipment.
Reminders for Using These Products:
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer
Year Established:
2009
Employee Number:
>>300
Ecer Certification：
Verified Supplier
Company Profile Beijing Silk Road Enterprise Management Services Co.,Ltd. is a professional company focus on integrated circuit ic business. Beijing Silk Road will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining an... Company Profile Beijing Silk Road Enterprise Management Services Co.,Ltd. is a professional company focus on integrated circuit ic business. Beijing Silk Road will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining an...
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