Product Overview

The CTH214 series is an AC input, 4-pin half pitch Mini-Flat DMC-Isolator phototransistor optocoupler. It features high isolation of 3750 VRMS and a patented coplanar structure. Available with various Current Transfer Ratio (CTR) selections, this optocoupler is designed for AC input with transistor output and operates within a temperature range of -55 C to 110 C. It is compliant with RoHS, REACH, and Halogen Free standards, and holds multiple regulatory approvals including UL, VDE, CQC, and IEC62368. The CTH214 series is suitable for applications such as switch mode power supplies, computer peripheral interfaces, and microprocessor system interfaces.

Product Attributes

• Brand: CT MICRO INTERNATIONAL CORPORATION
• Product Line: CTH214 Series
• Technology: DMC-Isolator
• Certifications: UL - UL1577, VDE - EN60747-5-5, CQC GB4943.1, GB8898, IEC62368
• Compliance: RoHS, REACH, Halogen Free
• Package Type: 4-Pin Half Pitch Mini-Flat
• Input Type: AC Input
• Output Type: Transistor Output

Technical Specifications

Symbol	Parameters	Test Conditions	Min	Typ	Max	Units	Notes
Absolute Maximum Ratings (TA = 25C, unless otherwise specified)
VISO	Isolation voltage				3750	VRMS
PTOT	Total power dissipation				200	mW
TOPR	Operating temperature		-55		110	C
TSTG	Storage temperature		-55		150	C
TSOL	Soldering temperature				260	C
IF	Forward current				50	mA
IF(TRANS)	Peak transient current (1s P.W,300pps)				1	A
PD (Emitter)	Emitter power dissipation				70	mW
PD (Detector)	Detector power dissipation				150	mW
BVCEO	Collector-Emitter Breakdown Voltage				80	V
BVECO	Emitter-Collector Breakdown Voltage				6	V
IC	Collector Current				50	mA
Electrical Characteristics (TA = 25C, unless otherwise specified)
Emitter Characteristics
VF	Forward voltage	IF=10mA		1.24	1.4	V
CIN	Input Capacitance	f= 1MHz		30		pF
Detector Characteristics
BVCEO	Collector-Emitter Breakdown	IC= 100A	80			V
BVECO	Emitter-Collector Breakdown	IE= 100A	6			V
ICEO	Collector-Emitter Dark Current	VCE= 20V, IF=0mA			100	nA
Transfer Characteristics
CTR	Current Transfer Ratio	CTH214, IF= 1mA, VCE= 5V	20		300	%
CTR	Current Transfer Ratio	CTH214A, IF= 1mA, VCE= 5V	50		150	%
CTR	Current Transfer Ratio	CTH214B, IF= 1mA, VCE= 5V	100		300	%
CTR	Current Transfer Ratio	CTH214, IF= 5mA, VCE= 5V	30		600	%
CTR	Current Transfer Ratio	CTH214A, IF= 5mA, VCE= 5V	80		300	%
CTR Symmetry		IF= 1mA, VCE= 5V	0.7		1.3
VCE(SAT)	Collector-Emitter Saturation Voltage	IF= 20mA, IC= 1mA		0.04	0.2	V
RIO	Isolation Resistance	VIO= 500VDC	5x1010
CIO	Isolation Capacitance	f= 1MHz		0.5	1	pF
Switching Characteristics
tr	Rise Time	IC= 2mA, VCE= 2V, RL= 100		6		s
tf	Fall Time			8