參數資料
型號: P0770
英文描述: POWER MAGNETICS CATALOG (68 pages) - (5/02)
中文描述: 功率磁性元件產品目錄(68頁) - (5 / 02)
文件頁數: 31/68頁
文件大小: 2741K
代理商: P0770
29
PC500.B (5/02)
US 858 674 8100
UK 44 1483 401 700
France 33 3 84 35 04 04
Singapore 65 287 8998
Taiwan 886 2 2698 0228
Hong Kong 852 2788 6588
http://www.pulseeng.com
SMT POWER INDUCTORS
For Use with Volterra's Chipset
Notes from Tables
1. The rated current as listed is either the saturation current or the
heating current depending on which value is lower.
2. The saturation current is the current which causes the
inductance to drop by 10% at the stated ambient temperatures
(-40°C, 25°C, 125°C). This current is determined by placing the
component in the specified ambient environment and applying
a short duration pulse current (to eliminate self-heating effects)
to the component.
3. The heating current is the dc current which causes the tempera-
ture of the part to increase by approximately 30°C. This current
is determined by mounting the component on a PCB with .25"
wide, 3 oz. equivalent copper traces, and applying the current
to the device for 30 minutes.
4. In high volt*time applications, additional heating in the
component can occur due to core losses in the inductor
which may neccessitate derating the current in order to limit
the temperature rise of the component. In order to determine
the approximate total losses (or temperature rise) for a given
application both copper losses and core losses should be
taken into account.
Estimated Temperature Rise:
Trise
= Coreloss (mW) + DCRloss (mW)
.833
(°C)
K0
Coreloss
= K1 *
(
Fsw(kHz)
)
1.6688
* (K2 * dI)
2.17
(mW)
DCRloss
= Irms
2
* DCR(m
) (mW)
Irms
= IDC
2
+ dI
2
(Arms)
2
Fsw(kHz)
= switching frequency (kHz)
dI
= delta I across the component (A)
The temperature of the component (ambient temperature +
temperature rise) should be within the listed operating
temperature range.
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Inductance vs Current Characteristics
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相關代理商/技術參數
參數描述
P0770.102NL 功能描述:1μH Unshielded Wirewound Inductor 2.9A 50 mOhm Max Nonstandard 制造商:pulse electronics corporation 系列:P0770NL 包裝:托盤 零件狀態(tài):有效 類型:繞線 材料 - 磁芯:- 電感:1μH 容差:±20% 額定電流:2.9A 電流 - 飽和值:2.9A 屏蔽:無屏蔽 DC 電阻(DCR):50 毫歐最大 不同頻率時的 Q 值:- 頻率 - 自諧振:- 等級:- 工作溫度:-40°C ~ 130°C 頻率 - 測試:100kHz 安裝類型:表面貼裝 封裝/外殼:非標準 大小/尺寸:0.260" 長 x 0.175" 寬(6.60mm x 4.45mm) 高度 - 安裝(最大值):0.115"(2.92mm) 標準包裝:145
P0770.102NLT 功能描述:固定電感器 1.0uH 20% ’102’ RoHS:否 制造商:AVX 電感:10 uH 容差:20 % 最大直流電流:1 A 最大直流電阻:0.075 Ohms 工作溫度范圍:- 40 C to + 85 C 自諧振頻率:38 MHz Q 最小值:40 尺寸:4.45 mm W x 6.6 mm L x 2.92 mm H 屏蔽:Shielded 端接類型:SMD/SMT 封裝 / 箱體:6.6 mm x 4.45 mm
P0770.102T 制造商:Pulse 功能描述:IND PWR UNSHLD 1UH 20% 100KHZ 2.9A - Tape and Reel 制造商:Pulse Electronics Corporation 功能描述:Ind Power Unshielded Wirewound 1uH 20% 100KHz 2.9A T/R
P0770.103 制造商:Pulse 功能描述:- Bulk
P0770.103NL 制造商:Pulse 功能描述:- Bulk