1. Product Overview

️· Product: TPRH4D18 Series SMD Power Inductor
️· Manufacturer: FENG JUI TECHNOLOGY CO., LTD
️· Slogan/Marketing: "Your Perfect Inductor"
️· Revision: Rev.1601

2. Specifications/Performance

️· Inductance Range: The document lists specific inductance values (in µH) ranging from 1.8 to 390. Here's a selection:
- 1.8
- 3.3
- 3.9
- 4.7
- 5.6
- 6.8
- 8.2
- 10
- 12
- 15
- 18
- 22
- 27
- 33
- 39
- 47
- 56
- 68
- 82
- 100
- 120
- 150
- 180
- 220
- 270
- 330
- 390
️· DCR (DC Resistance): Varies depending on inductance value (see table).
️· Rated Current (IDC): Varies depending on inductance value (see table). Ranges from 0.14 A to 0.88 A.
️· Note 3 (Rated Current Explanation): The rated current is defined as the current at which the inductance drops to 65% of its nominal value, or the DC current when the temperature rises by 30°C, whichever is lower.
️· Inductance Tolerance: N: ±30%; M: ±20%

3. General Characteristics

️· Operating Temperature Range: -40°C to +105°C.
️· Appearance: Must be free of defects upon visual inspection.
️· Terminal Strength: Must withstand a force of 5.0 N for 60 seconds.
️· Insulating Resistance: >100 MΩ at 100 V DC.
️· Dielectric Strength: Must not experience dielectric breakdown at 100 V DC.
️· Temperature Coefficient: (0~2,000) x 10^-6 / °C (-25°C to +80°C). (Indicates how inductance changes with temperature).
️· Humidity Resistance: Inductance deviation within ±5% after 96 hours at 90-95% relative humidity at 40 ± 2 °C, followed by 1 hour of drying.
️· Vibration Resistance: Inductance deviation within ±5% during vibration.
️· Shock Resistance: Inductance deviation within ±5% during shock.
️· Packaging: Taped; 3000 pieces/reel.
️· Component Life: Components are expected to be suitable for use after 12 months, but solderability should be checked before use.

4. Reflow Profile (for Soldering)

️· Lead-free Compatible: The profile is designed for lead-free soldering.
️· Peak Temperature: 245°C
️· Time Above 230°C: 40 seconds
️· Temperature/Time Graph: The document includes a graph visually representing the recommended reflow temperature profile with time axes.



This summary should provide a comprehensive overview of the information presented. Let me know if you need more details on a specific section.