Photoelectric Coupler with High Isolation Voltage and Wide Operating Temperature HENGTUO HT-3H7-CTP1
Product Overview
The HT-3H7X is a photoelectric coupler from Hengtuo Technology Co., LTD., designed with a light-emitting diode and a phototransistor. Packaged in a 4-pin configuration with options for wide-lead spacing and SMD, this device offers high input-output isolation voltage (Viso = 3,750Vrms) and a wide operating temperature range of -55 to 110. Key features include a current transfer ratio (CTR) of at least 50% and safety approvals from UL, VDE, and CQC. The HT-3H7X is suitable for applications such as programmable controllers, switching power supplies, intelligent meters, and various home appliances like air conditioners and water heaters.
Product Attributes
- Brand: Hengtuo Technology Co., LTD.
- Product Series: HT-3H7X
- Certifications: UL 1577, VDE DIN EN60747-5-5 (VDE 0884-5), CQC11-471543-2022
- Compliance: RoHS, MSL1
- Lead Frame Material: Copper (Default)
Technical Specifications
| Parameter | Symbol | Value | Unit | Condition |
|---|---|---|---|---|
| Current Transfer Ratio (CTR) | CTR | MIN. 50% | % | IF = 5mA, VCE = 5V |
| Input-Output Isolation Voltage | Viso | 3,750 | Vrms | AC for 1 minute, R.H.= 40 ~ 60% R.H. |
| Operating Temperature | Top | -55 ~ 110 | ||
| Input Forward Current | IF | 50 | mA | Maximum Rating |
| Reverse Voltage | VR | 6 | V | Maximum Rating |
| Power Dissipation (Input) | PD | 70 | mW | Maximum Rating |
| Collector-Emitter Voltage | VCEO | 80 | V | Maximum Rating |
| Collector Current | IC | 50 | mA | Maximum Rating |
| Collector Power Dissipation | PC | 150 | mW | Maximum Rating |
| Storage Temperature | Tstg | -55 ~ 125 | Maximum Rating | |
| Total Power Consumption | P(W) | 200 | mW | Maximum Rating |
| Soldering Temperature | TSOL | 260 | 10 seconds | |
| Input Forward Voltage | VF | 1.2 - 1.4 | V | IF=20mA |
| Reverse Current | IR | - 10 | A | VR=4V |
| Terminal Capacitance | Ct | 30 - 250 | pF | V=0, f=1KHz |
| Collector Dark Current | ICEO | - 100 | nA | VCE=20V, IF=0 |
| Collector-Emitter Breakdown Voltage | BVCEO | 80 | V | IC=0.1mA, IF=0 |
| Emitter-Collector Breakdown Voltage | BVECO | 7 | V | IE=10A, IF=0 |
| Collector-Emitter Saturation Voltage | VCE(sat) | 0.1 - 0.2 | V | IF=20mA, IC=1mA |
| Isolation Resistance | Riso | 51010 - 11011 | DC500V, 40 ~ 60% R.H. | |
| Floating Capacitance | Cf | 0.6 - 1 | pF | V=0, f=1MHz |
| Cut-off Frequency | fc | 80 | kHz | VCE=5V, IC=2mA RL=100,-3d B |
| Response Time (Rise) | tr | 4 - 18 | s | VCE=2V, IC=2mA RL=100 |
| Response Time (Fall) | tf | 3 - 18 | s | VCE=2V, IC=2mA RL=100 |
| CTR Rank (None) | CTR | 50 - 600 | % | IF=5mA, VCE=5V, Ta=25C |
| CTR Rank (A) | CTR | 80 - 160 | % | IF=5mA, VCE=5V, Ta=25C |
| CTR Rank (B) | CTR | 130 - 260 | % | IF=5mA, VCE=5V, Ta=25C |
| CTR Rank (C) | CTR | 200 - 400 | % | IF=5mA, VCE=5V, Ta=25C |
| CTR Rank (D) | CTR | 300 - 600 | % | IF=5mA, VCE=5V, Ta=25C |
2411261516_HENGTUO-HT-3H7-CTP1_C34376201.pdf
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