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Partno	Mfg	Dc	Qty	Available	Descript
ESDARF01-1BM2 |ESDARF011BM2	ST	N/a	1234	avai	ESD protection for AM and FM antennna

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ESDARF01-1BM2
ESD protection for AM and FM antennna
June 2012 Doc ID 13462 Rev 3 1/11
ESDARF01-1BM2
ESD protection for AM and FM antenna
Datasheet − production data
Features Single line bidirectional protection Very low capacitance (3 pF typical) Lead-free package Very low capacitance, line to ground, for
optimized data integrity Low PCB space consumption: 0.6 mm2 max No insertion loss in AM and FM band High reliability offered by monolithic integration
Complies with the following standards IEC 61000-4-2: 15 kV (air discharge) 8 kV (contact discharge) MIL STD 883G- Method 3015-7: class 3B:
Applications
Where transient over voltage protection in ESD
sensitive equipment is required, such as: Portable audio systems Communication systems Cellular phone handsets and accessories Audio and video equipment
Description
The ESDARF01-1BM2 is a monolithic application
specific device dedicated to ESD protection of the
AM and FM antenna in cell phones and portable
equipment.
The device is ideal for applications where both
reduced printed circuit board space and power
absorption capability are required.
Figure 1. Functional diagram
Characteristics ESDARF01-1BM2
2/11 Doc ID 13462 Rev 3
1 Characteristics

1. For a surge greater than the maximum values, the diode will fail in short-circuit.
Figure 2. Electrical characteristics (definitions)

Table 1. Absolute maximum ratings
Table 2. Electrical characteristics (values, T amb = 25 °C)
ESDARF01-1BM2 Characteristics
Doc ID 13462 Rev 3 3/11


Figure 7. Junction capacitance versus frequency (typical values)
Figure 3. Relative variation of leakage
current versus junction
temperature (typical values)
Figure 4. S21 attenuation measurements
(50 Ω / 50 Ω)
Figure 5. ESD response to IEC 61000-4-2
(+15 kV air discharge)
Figure 6. ESD response to IEC 61000-4-2
(-15 kV air discharge)
Application schematics ESDARF01-1BM2
4/11 Doc ID 13462 Rev 3
2 Application schematics
Figure 8. Application schematics
ESDARF01-1BM2 Ordering information scheme
Doc ID 13462 Rev 3 5/11 Ordering information scheme
Figure 9. Ordering information scheme
Package information ESDARF01-1BM2
6/11 Doc ID 13462 Rev 3
4 Package information Epoxy meets UL94, V0 Lead-free packages
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK® packages, depending on their level of environmental compliance. ECOP ACK®
specifications, grade definitions and product status are available at: .
ECOPACK® is an ST trademark.
Figure 10. SOD882 dimension definitions
Table 3. SOD882 dimension values