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The HMHA281, HMHA2801 Series consists of a gallium arsenide infrared emitting diode driving a silicon phototransistor in a compact 4-pin mini-flat package. The lead pitch is 1.27 mm.
The HMHAA280 series consists of two gallium arsenide infrared emitting diodes connected in inverse parallel, driving a single silicon phototransistor in a compact 4-pin mini-flat package. The lead pitch is 1.27 mm.
HMHA281 Maximum Ratings
Product
Product status
Eco Status
Pricing*
Package type
Leads
Packing method
Package Drawing
HMHA281
Full Production
RoHS Compliant
$0.20
Half Pitch MFP
4
BOX
TBD
HMHA281R1
Lifetime Buy
RoHS Compliant
N/A
Half Pitch MFP
4
TAPE REEL
TBD
HMHA281R1V
Lifetime Buy
RoHS Compliant
N/A
Half Pitch MFP
4
TAPE REEL
TBD
HMHA281R2
Full Production
RoHS Compliant
$0.20
Half Pitch MFP
4
TAPE REEL
TBD
HMHA281R2V
Full Production
RoHS Compliant
$0.20
Half Pitch MFP
4
TAPE REEL
TBD
HMHA281V
Full Production
RoHS Compliant
$0.20
Half Pitch MFP
4
BOX
TBD
* Fairchild 1,000 piece Budgetary Pricing
** A sample button will appear if the part is available through Fairchild's on-line samples program. If there is no sample button, please contact a Fairchild distributor to obtain samples
HMHA281 Features
• Compact 4-pin package (2.4 mm maximum standoff height) • Half pitch leads for optimum board space savings • Current Transfer Ratio in selected groups HMHA2801: 80-600% HMHA2801A: 80-160% HMHA2801B: 50-150% HMHA2801C: 50-100% HMHA281: 50-600% HMHAA280: 50-600% • Available in tape and reel quantities of 500 and 2500 • Applicable to Infrared Ray reflow (230°C Max, 30 seconds) • BSI (File #8611/8612), CSA (File #1201524), UL (File #E90700) and VDE (File #136480) certified
HMHA281 Typical Application
HMHAA280 • AC line monitor • Unknown polarity DC sensor • Telephone line receiver HMHA281, HMHA2801 Series • Digital logic inputs • Microprocessor inputs • Power supply monitor • Twisted pair line receiver • Telephone line receiver