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Specifications
Current - Saturation (Isat):
15A
Mfr. Part #:
DH1040H-4R7M
Package:
SMD,11x10.2mm
Key Attributes
Model Number:
DH1040H-4R7M
Product Description
Product Overview
The DH1040H-4R7M is an SMD Molding Power Inductor from Guangdong Dehong Sensing Microelectronics Co., Ltd. It is designed for consumer electronics applications and offers reliable performance with specific electrical and mechanical characteristics. The product is manufactured with a focus on quality and adherence to stringent testing standards.
Product Attributes
- Brand: (Guangdong Dehong Sensing Microelectronics Co., Ltd.)
- Origin: Guangdong, China
- Product Type: (SMD Molding Power Inductor)
- Grade: (General)
- Application: Primarily for consumer electronics.
Technical Specifications
| Part Number | Inductance (L0 @100kHz/1.0V) | DCR (m) Typ. | Rated Current (Irms) Typ. | Saturation Current (Isat) Typ. | External Dimensions (A/B/C) | Operating Temperature Range |
|---|---|---|---|---|---|---|
| DH1040H-4R7M | 4.7 H 20% | 14 | 10 A | 15 A | 10.2 0.3 / 11.0 0.5 / 4.0 Max. | -45 ~ +125 |
Material List
| No. | Item | Material | Supplier |
|---|---|---|---|
| 1 | CORE | DH | |
| 2 | COPPER | TOTOKU | |
| 3 | BLAK | ZS | |
| 4 | INK | YMS |
Test Items & Specifications
| Test Item | Specification | Test Condition / Method |
|---|---|---|
| Electrical Performance Test | Inductance (L) | Refer to Standard Electrical Characteristic List. |
| DC Resistance (DCR) | TH2511 | |
| Rated Current (IDC) | Inductance change should be less than 30% or temperature rise should not be 40. | |
| Temperature Rise Test | Not exceed 40 | Applied the allowed DC current for 4 hours. |
| Over Load Test | No evidence of electrical damage | Applied 1.5 times of rated allowed DC current for 5 minutes. |
| Mechanical Performance Test | Solder Heat Resistance | No appearance and electrical characteristic damage. Inductance change not exceed 10%. Preheating: 150 100s Max. Solder Temp: 2555. Dip Time: 10s Max. |
| Solderability Test | More than 90% of electrode covered with solder. Preheating: 150 120s. Solder Temp: 2555. Time: 10s Max. | |
| Climatic Test | Temperature Characteristic: Appearance: No damage. Inductance: Within 10% of initial value. Range: -45 ~ +125. | -45 ~ +125 |
| Humidity Test | 602 / 962 hours, RH: 90-95%RH | Test at room temperature for 1 hour after storage. |
| Low Temperature Storage | -452 / 24 hours | Test at room temperature for 1 hour after storage. |
| Thermal Shock Test | -452 30 min, +852 30 min, 100 cycles | Test at room temperature for 1 hour after storage. |
| High Temperature Storage | 852 / 24 hours | Test at room temperature for 1 hour after storage. |
Points For Attention
- Optimal shelf life: within 180 days from the date of manufacture.
- Seal unused products with sealing tape to prevent oxidation of solder pads.
- Avoid contact with water, sweat, or dust on solder pads. Do not touch solder pads with bare hands.
- Product performance may vary with operating conditions; re-test if used in different applications.
- Exceeding voltage, current, or temperature limits can cause irreversible damage.
- Not suitable for humid, dark, or strongly corrosive environments.
Package Type
| Product Series | Reel Quantity | Inner Box Quantity | Outer Box Quantity | Tape Peel Strength Requirement |
|---|---|---|---|---|
| DH1040 | 1000pcs/reel | 2000pcs/box | 6000pcs/box | 20~140g |
2411121051_dehongganying-DH1040H-4R7M_C41407182.pdf
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