HMHA281

Maximum Collector Emitter Voltage : 80 V
Maximum Collector Emitter Saturation Voltage : 0.4 V
Maximum Power Dissipation : 150 mW
Minimum Operating Temperature : - 55 C
Maximum Operating Temperature : + 100 C
Maximum Collector Current : 50 mA
Packaging : Bulk
Input Type : DC
Maximum Forward Diode Voltage : 1.3 V
Isolation Voltage : 2500 Vrms
Current Transfer Ratio : 600 %
Package / Case : SMD-4


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




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




Specifications

Parameter	Symbol	Value	Units
TOTAL PACKAGE Storage Temperature	TSTG	-40 to +125
Operating Temperature	TOPR	-40 to +100
EMITTER Continuous Forward Current	IF(avg)	50	mA
Peak Forward Current (1 s pulse, 300 pps.)	IF(pk)	1	A
Reverse Input Voltage (HMHA)	VR	6	V
Power Dissipation Derate linearly (above 25°C)	PD	60	mW
		0.6	mW/
DETECTOR Continuous Collector Current		50	mA
Power Dissipation Derate linearly (above 25)	PD	150	mW
		1.5	mW/
Collector-Emitter Voltage	VCEO	80	V
Emitter-Collector Voltage	VECO	7	V

Description

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 HMHA281 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 1.27mm.

Parameters:

Technical/Catalog Information	HMHA281
Vendor	Fairchild Semiconductor
Category	Isolators
Isolation Voltage	2500Vrms
Input Type	DC
Output Type	Transistor
Current - Output/Channel	50mA
Voltage - Output	80V
Vce Saturation (Max)	400mV
Current Transfer Ratio (Min)	50% @ 5mA
Mounting Type	Surface Mount
Package / Case	4-MFP
Packaging	Tube
Number of Circuits	1 - Single
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	HMHA281 HMHA281