PRF21BE471QB2RA Murata, PRF21BE471QB2RA Datasheet - Page 12

• Manufacturer Part Number: PRF21BE471QB2RA
• Description: Thermistors - PTC 470 OHM 32V
• Manufacturer: Murata
• Type: PTCr
• Series: PRF21r

Specifications of PRF21BE471QB2RA

• Resistance: 470 Ohms
• Tolerance: 5 %
• Termination Style: SMD/SMT
• Operating Temperature Range: - 20 C to + 110 C
• Current Rating: 0.1 mAmp
• Dimensions: 1.25 mm W x 2 mm L
• Voltage: 140 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

!Note
POSISTORr Lead type: PTGL series
1. Applications
Replacement idea for a current fuse.
2. Benefits
3. Recommended part numbers
10
Application Notes
PTGL07BB220N0B52A0
PTGL09AR390N0B52A0
PTGL09AR250H8B52B0
Please ask for details.
Overcurrent Protection for Communication Facility
POSISTORr is an efficient device to protect a telephone
line interface (SLIC: Subscriber-Loop-Interface-Circuit)
against AC line contact.
(1) Landline telephones or FAX machines
(2) Telephone interface of STB, VoIP equipment
(3) Any other equipment of communication facility having
(1) Automatic reset from protective trip up to 265V AC
(2) Compatible with the 600V over voltage test by
(3) High resistance to the lighting surge (*A surge
Choose an appropriate part number based on the hold
current and on the resistance value required to the
operation current of SLIC.
• Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please review our product specifications or consult the approval sheet for product specifications before ordering.
a phone line interface
line contact
UL60950
absorber is still required to protect SLIC)
Part Number
Ring
Tip
Voltage
Max.
250
250
265
(V)
Current
Max.
0.5
0.6
1.0
(A)
Hold Current
(at +60 C)
(mA)
100
118
90
SLIC
Trip Current
(at -10 C)
(mA)
300
280
330
Resistance
(at +25 C)
22 30%
39 30%
25 25%
(ohm)
Ring
Tip
Diameter
Body
(mm)
10.0
10.0
8.0
POSISTORr
Thickness
(mm)
6.0
6.0
6.0
Space
Lead
(mm)
5.0
5.0
5.0
Diameter
SLIC
Lead
(mm)
0.6
0.6
0.6
page 56
page 56
page 57
Details
More
Apr.25,2011
R90E.pdf