USA 858 674 8100
••
UK 44 1483 401 700
••
France 33 3 84 35 04 04
••
Singapore 65 6287 8998
••
Shanghai
86 21 54643211 / 2
••
China 86 769 5538070
••
Taiwan 886 3 4641811
www.pulseeng.com
63 SPM2006 (2/08)
SMT POWER INDUCTORS
Flat Coils - PG0277NL Series
.256
6,50
MAX
PG0277.XXXNL
Date Code
Country of Origin
.571
14,50MAX
.520
13,20
MAX
SUGGESTED PAD LAYOU
T
.161 ± .005
4,10 ± 0,12
2x
.583 ± .005
14,80 ± 0,12
.193 ± .005
4,90 ± 0,12
Mechanical Schematic
Part8,9 Inductance2
Irated3DCR (mΩ)Inductance Saturation4Heating5Core Loss6
Number @Irated (A) @0ADC Current Current IDC Factor
(μH TYP) TYP MAX (μH ±20%) Isat (A) (A) K2
PG0277.401NL 0.38 35 0.75 0.80 0.45 48 35 33.5
PG0277.801NL 0.75 31 1.20 1.30 0.80 38 31 42.5
PG0277.142NL 1.32 26 2.00 2.10 1.40 28 26 57.8
PG0277.202NL 1.90 21 2.80 2.90 2.00 24 21 67.6
PG0277.282NL 2.65 17 4.10 4.20 2.80 20 17 80.1
Electrical Specifications @ 25°C — Operating Temperature -40°C to +130°C 1
TAPE & REEL LAYOUT
.945
24,00
.945 ± .012
24,00 ± 0,30
Height: 6.5mm Max
Footprint: 14.5mm x 13.2mm Max
Current Rating: up to 35A
Inductance Range: 0.38µH to 2.65µH
RoHS compliant
Self-leaded version of PG0077 series
1
2
Weight......................5.5 grams
Tape & Reel ................300/reel
Dimensions: Inches
mm
Unless otherwise specified, all tolerances are ± .010
0,25
USA 858 674 8100
••
UK 44 1483 401 700
••
France 33 3 84 35 04 04
••
Singapore 65 6287 8998
••
Shanghai
86 21 54643211 / 2
••
China 86 769 5538070
••
Taiwan 886 3 4641811
www.pulseeng.com
64 SPM2006 (2/08)
SMT POWER INDUCTORS
Flat Coils - PG0277NL Series
Notes from Tables
1. The temperature of the component (ambient plus temperature
rise) must be within the specified operating temperature range.
2. Inductance at Irated is a typical inductance value for the compo-
nent taken at rated current.
3. The rated current listed is the lower of the saturation current @
25°C or the heating current.
4. The saturation current, I
SAT
, is the current at which the compo-
nent inductance drops by 20% (typical) at an ambient tempera-
ture of 25°C. This current is determined by placing the compo-
nent in the specified ambient environment and applying a short
duration pulse current (to eliminate self-heating effects) to the
component.
5. The heating current, I
DC
, is the DC current required to raise the
component temperature by approximately 40°C. The heating cur-
rent is determined by mounting the component on a typical PCB
and applying current for 30 minutes. The temperature is mea-
sured by placing the thermocouple on top of the unit under test.
Take note that the component’s performance varies depending
on the system condition. It is suggested that the component be
tested at the system level, to verify the temperature rise of the
component during system operation.
6. Core loss approximation is based on published core data:
Core Loss = K1 * (f)
1.30
* (K2ΔI)
2.41
Where: Core Loss = in Watts
K1= 3.50E-10
f = switching frequency in kHz
K1 & K2 = core loss factors
ΔΔI= delta I across the component in Ampere
K2ΔΔI= one half of the peak to peak flux density
across the component in Gauss
7. Unless otherwise specified, all testing is made at
100kHz, 0.1VAC.
8.
Optional Tape & Reel packaging can be ordered by adding a "T"
suffix to the part number (i.e. PG0277.401NL becomes
PG0277.401NLT). Pulse complies to industry standard tape and
reel specification EIA481.
Inductance vs Current Characteristics
PG0277.202NL
PG0277.401NL
PG0277.282NL
0.0
0.5
1.0
1.5
2.0
2.5
3.0
DC BIAS (A)
INDUCTANCE (µH)
PG0277.142NL
PG0277.801NL
0
3
7
11
15
19
23
27
31
35
39
43
47
51
55
59
Typical Core Loss vx Peak Flux Density
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
1.80
200 400 600 700 900 1000
D
B (Gauss) where
D
B = K2
D
I
CoreLoss (W)
1.0
MHz
100
kHz
500
kHz
400
kHz
300
kHz 200
kHz
2.00
300 500 800100
