
Description
• Halogen free, lead free, RoHS compliant
• 125°C maximum total temperature operation
• 12.1x8.0x8.0mm maximum surface mount package
• Ferrite core material
• Controlled DCR for sensing circuits
• Inductance range from 150nH to 250nH
• Current range from 44 to 85 Amps
Applications
• Multi-phase regulators
• Voltage Regulator Modules (VRMs)
• Desktop and server VRMs and EVRDs
• Notebook regulators
• Data networking and storage systems
• Graphics cards and battery power systems
• Point-of-Load modules
•DCR Sensing circuits
Environmental Data
• Storage temperature range (Component): -40°C to +125°C
• Operating temperature range: -40°C to +125°C (ambient + self-temperature rise)
• Solder reflow temperature: J-STD-020D compliant
Packaging
• Supplied in tape-and reel packaging, 5 00 parts per 13” diameter reel
Product Specifications
Part Number |
OCL1 (nH)±10% |
FLL min.2 (nH) |
Irms3 (Amps) |
Isat14 (Amps) |
Isat25 (Amps) |
Isat36 (Amps) |
DCR (mΩ) @ 20°C | K-factor7 |
FP1208R1-R15-R | 150 | 114 | 50 | 85 | 79 | 72 | 0.29±5% | 283 |
FP1208R1-R18-R | 180 | 137 | 72 | 66 | 63 | 283 | ||
FP1208R1-R21-R | 210 | 160 | 65 | 57 | 55 | 283 | ||
FP1208R1-R23-R | 230 | 176 | 61 | 53 | 50 | 283 | ||
FP1208R1-R25-R | 250 | 191 | 55 | 48 | 44 | 283 |
1. Open Circuit Inductance (OCL) Test Parameters: 100kHz, 0.1Vrms, 0.0Adc@25°C
2. Full Load Inductance (FLL) Test Parameters: 100kHz, 0.1Vrms, Isat1
3. Irms: DC current for an approximate temperature rise of 40°C without core loss.
Derating is necessary for AC currents. PCB layout, trace thickness and width, air-flow, and proximity of other heat generating components will affect the temperature rise. It is recommended that the temperature of the part not exceed 125°C under worst case operating conditions verified in the end application.
4. Isat1: Peak current for approximately 20% rolloff @ 25°C
5. Isat2: Peak current for approximately 20% rolloff @ 85°C
6. Isat3: Peak current for approximately 20% rolloff @ 125°C
7. K-factor: Used to determine Bp-p for core loss (see graph). Bp-p = K * L * ∆I * 10-3. Bp-p:(Gauss), K: (K-factor from table), L: (Inductance in nH), ∆I (Peak to peak ripple current in Amps).
8. Part Number Definition: FP1208Rx-Rxx-R:
- FP1208= Product code and size
- Rx= DCR indicator
- Rxx= Inductance value in µH
- “-R” suffix = RoHS compliant
Dimensions - mm

Packaging Information - mm

Supplied in tape and reel packaging, 500 parts on a 13” diameter reel
Temperature Rise vs. Total LossDimensions - mm

Packaging Information - mm

Supplied in tape and reel packaging, 500 parts on a 13” diameter reel

Core Loss

Inductance Characteristics

Solder Reflow Profile

Reference JDEC J-STD-020D
Profile Feature | Standard SnPb Solder | Lead (Pb) Free Solder | |
Preheat and Soak | • Temperature min. (Tsmin) | 100°C | 150°C |
• Temperature max. (Tsmax) | 150°C | 200°C | |
• Time (Tsmin to Tsmax) (ts) | 60-120 Seconds | 60-120 Seconds | |
Average ramp up rate Tsmax to Tp | 3°C/ Second Max. | 3°C/ Second Max. | |
Liquidous temperature (TL) Time at liquidous (tL) |
183°C 60-150 Seconds |
217°C 60-150 Seconds |
|
Peak package body temperature (TP)* | Table 1 | Table 2 | |
Time (tp)** within 5 °C of the specified classification temperature (Tc) | 20 Seconds** | 30 Seconds** | |
Average ramp-down rate (Tp to Tsmax) | 6°C/ Second Max. | 6°C/ Second Max. | |
Time 25°C to Peak Temperature | 6 Minutes Max. | 8 Minutes Max. |
* Tolerance for peak profile temperature (Tp) is defined as a supplier minimum and a user maximum.
** Tolerance for time at peak profile temperature (tp) is defined as a supplier minimum and a user maximum.
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