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UCLAMP2501T 데이터시트 PDF




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부품번호 UCLAMP2501T 기능
기능 Low Voltage Clamp 2.5V TVS Diode
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UCLAMP2501T 데이터시트, 핀배열, 회로
PROTECTION PRODUCTS - MicroClamp®
Description
The μClamp® series of Transient Voltage Suppressors
(TVS) are designed to replace multilayer varistors
(MLVs) in portable applications such as cell phones,
notebook computers, and PDAs. They offer superior
electrical characteristics such as lower clamping
voltage and no device degradation when compared to
MLVs. They are designed to protect sensitive semicon-
ductor components from damage or upset due to
electrostatic discharge (ESD), lightning, electrical fast
transients (EFT), and cable discharge events (CDE).
The μClamp®2501T is constructed using Semtech’s
proprietary EPD TVS process technology. The EPD
process provides low operating voltages with significant
reductions in leakage currents and capacitance over
silicon-avalanche diode processes. They feature a true
sub 5 volt operating voltage for superior protection
when compared to traditional pn junction devices.
The μClamp2501T is in a 2-pin SLP1006P2T package.
It measures 1.0 x 0.6 x 0.4mm. The leads are spaced
at a pitch of 0.65mm and are finished with lead-free
NiPdAu. Each device will protect one line operating at
2.5 volts. It gives the designer the flexibility to protect
single lines in applications where arrays are not practi-
cal. They may be used to meet the ESD immunity
requirements of IEC 61000-4-2, Level 4 (±15kV air,
±8kV contact discharge). The combination of small
size and high ESD surge capability makes them ideal
for use in portable applications such as cellular
phones, digital cameras, and MP3 players.
uClamp2501T
Low Voltage μClamp®
2.5V TVS Diodewww.DataSheet4U.com
Features
‹ Transient protection for data lines to
IEC 61000-4-2 (ESD) ±15kV (air), ±8kV (contact)
IEC 61000-4-4 (EFT) 40A (tp = 5/50ns)
Cable Discharge Event (CDE)
‹ Ultra-small package (1.0 x 0.6 x 0.4mm)
‹ Low leakage current: <10nA typical (VR=2.5V)
‹ Low Operating voltage: 2.5V
‹ Low capacitance
‹ Protects one data line
‹ Solid-state silicon-avalanche technology
Mechanical Characteristics
‹ SLP1006P2T package
‹ Pb-Free, Halogen Free, RoHS/WEEE Compliant
‹ Nominal Dimensions: 1.0 x 0.6 x 0.4 mm
‹ Lead Finish: NiPdAu
‹ Molding compound flammability rating: UL 94V-0
‹ Marking : Marking code, cathode band
‹ Packaging : Tape and Reel
Applications
‹ Cellular Handsets & Accessories
‹ Portable Instrumentation
‹ Keypads, Side Keys, LCD Displays
‹ Notebooks & Desktop Computers
‹ mp3 Players
Dimensions
Schematic & PIN Configuration
1.0
0.65
0.60
2
0.40 1
Nominal Dimensions (mm)
Revision 10/21/2009
SLP1006P2T (Bottom View)
1 www.semtech.com




UCLAMP2501T pdf, 반도체, 판매, 대치품
PROTECTION PRODUCTS
Applications Information
Device Connection Options
The μClamp2501T is designed to protect one data line
operating up to 2.5 volts. It will present a high
impedance to the protected line up to 2.5 volts. It will
“turn on” when the line voltage exceeds 2.7 volts. The
device is unidirectional and may be used on lines
where the signal polarity is above ground. These
devices are not recommended for use on DC power
supply lines due to their snap-back voltage
characteristic.
EPD TVS Characteristics
These devices are constructed using Semtech’s
proprietary EPD technology. The structure of the EPD
TVS is vastly different from the traditional pn-junction
devices. At voltages below 5V, high leakage current
and junction capacitance render conventional ava-
lanche technology impractical for most applications.
However, by utilizing the EPD technology, these devices
can effectively operate at 2.5V while maintaining
excellent electrical characteristics.
The EPD TVS employs a complex nppn structure in
contrast to the pn structure normally found in tradi-
tional silicon-avalanche TVS diodes. The EPD mecha-
nism is achieved by engineering the center region of
the device such that the reverse biased junction does
not avalanche, but will “punch-through” to a conduct-
ing state. This structure results in a device with supe-
rior DC electrical parameters at low voltages while
maintaining the capability to absorb high transient
currents.
Circuit Board Layout Recommendations for Suppres-
sion of ESD.
Good circuit board layout is critical for the suppression
of ESD induced transients. The following guidelines are
recommended:
z Place the TVS near the input terminals or connec-
tors to restrict transient coupling.
z Minimize the path length between the TVS and the
protected line.
z Minimize all conductive loops including power and
ground loops.
z The ESD transient return path to ground should be
kept as short as possible.
z Never run critical signals near board edges.
z Use ground planes whenever possible.
© 2009 Semtech Corp.
4
uClamp2501T
www.DataSheet4U.com
Device Schematic & Pin Configuration
2
1
www.semtech.com

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UCLAMP2501T 전자부품, 판매, 대치품
PROTECTION PRODUCTS
Marking Code
25
Notes:
1) Marking will also include line matrix date code
Tape and Reel Specification
uClamp2501T
www.DataSheet4U.com
Ordering Information
Part Number
Working
Voltage
uClamp2501T.TCT
2.5V
Qty per
Reel
3,000
Reel
Size
7 Inch
Notes:
1) MicroClamp, uClamp and μClamp are marks of Semtech
Corporation
Pin 1 Location
User Direction of feed
A0 B0 K0
0.69 +/-0.10 mm 1.19 +/-0.10 mm 0.66 +/-0.10 mm
Device Orientation in Tape
Tape
Width
8 mm
B, (Max)
4.2 mm
(.165)
D D1
1.5 + 0.1 mm
- 0.0 mm
(0.59 +.005
- .000)
0.4 mm
±0.25
(.031)
E
1.750±.10
mm
(.069±.004)
F P P0 P2 T W
3.5±0.05
mm
(.138±.002)
4.0±0.10
mm
(.157±.00-
4)
4.0±0.1
mm
(.157±.00-
4)
2.0±0.05
mm
(.079±.002)
0.254±0.02
mm (.016)
8.0 mm
+ 0.3 mm
- 0.1 mm
(.312±.012)
Contact Information
Semtech Corporation
Protection Products Division
200 Flynn Rd., Camarillo, CA 93012
Phone: (805)498-2111 FAX (805)498-3804
© 2009 Semtech Corp.
7
www.semtech.com

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부품번호상세설명 및 기능제조사
UCLAMP2501T

Low Voltage Clamp 2.5V TVS Diode

Semtech Corporation
Semtech Corporation

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