Beijing Silk Road Enterprise Management Services Co., Ltd.
| Fall time | 3us |
| Output Current | 50mA |
| Rise time | 4us |
| Vce Saturation(VCE(sat)) | 100mV@20mA,1mA |
| Operating Temperature | -55℃~+110℃ |
| Load Voltage | 80V |
| Reverse Voltage | 9V |
| Current transfer ratio | 80%;160% |
| Forward Current(If) | 50mA |
| Pd - Power Dissipation | 200mW |
| Number of Channels | - |
| Load Type | Phototransistor |
| Input type | DC |
| Isolation Voltage(Vrms) | 3.75kV |
| Description | Phototransistor Output 3.75kVrms SOP-4 |
| Mfr. Part # | MEL357B |
| Package | SOP-4 |
| Model Number | MEL357B |
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Product Specification
| Fall time | 3us | Output Current | 50mA |
| Rise time | 4us | Vce Saturation(VCE(sat)) | 100mV@20mA,1mA |
| Operating Temperature | -55℃~+110℃ | Load Voltage | 80V |
| Reverse Voltage | 9V | Current transfer ratio | 80%;160% |
| Forward Current(If) | 50mA | Pd - Power Dissipation | 200mW |
| Number of Channels | - | Load Type | Phototransistor |
| Input type | DC | Isolation Voltage(Vrms) | 3.75kV |
| Description | Phototransistor Output 3.75kVrms SOP-4 | Mfr. Part # | MEL357B |
| Package | SOP-4 | Model Number | MEL357B |
The MEL357X is a compact surface-mount optocoupler designed for high-density applications. It comprises a gallium arsenide light-emitting diode and a phototransistor, offering superior miniaturization compared to DIP packages. Ideal for programmable controllers and various electronic devices, it provides excellent current transfer ratio (CTR) and high input-output isolation voltage.
| Model | Package | Minimum Packaging | Current Transfer Ratio (CTR) Range (IF=5mA, VCE=5V) | Input-Output Isolation Voltage (Viso) | Collector-Emitter Breakdown Voltage (BVCEO) |
|---|---|---|---|---|---|
| MEL357X | SOP-4 | 3000 | 50~600% | 3750 Vrms | 80V |
| Parameter | Symbol | Condition | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|---|
| Input | Forward Voltage (VF) | IF=20mA | 1.2 | 1.4 | - | V |
| Reverse Current (IR) | VR=5V | - | - | 10 | A | |
| Terminal Capacitance (Ct) | V=0, f=1kHz | - | 30 | 250 | pF | |
| Output | Collector Dark Current (ICEO) | VCE=70V | - | - | 100 | nA |
| Collector-Emitter Breakdown Voltage (BVCEO) | IC=0.1mA, IF=0 | 80 | - | - | V | |
| Emitter-Collector Breakdown Voltage (BVECO) | IE=0.1mA, IF=0 | 7 | - | - | V | |
| Collector Power Dissipation (PC) | - | - | - | 150 | mW | |
| Transfer Characteristics | Current Transfer Ratio (CTR) | IF=5mA, VCE=5V | 50 | - | 400 | % |
| Collector-Emitter Saturation Voltage (VCE(sat)) | IF=20mA, IC=1mA | - | 0.1 | 0.2 | V | |
| Isolation Resistance (RISO) | DC1000V, 40~60%R.H. | 1x1011 | - | - | ||
| Isolation Capacitance (Cf) | V=0, f=1MHz | - | 0.6 | 1.0 | pF | |
| Cut-off Frequency (Fc) | VCE=5V, IC=2mA, RL=100, -3dB | - | 80 | - | kHz | |
| Switching Time | Rise Time (Tr) | VCE=10V, IC=2mA, RL=100 | - | 4 | 18 | s |
| Fall Time (Tf) | - | - | 3 | 18 | s |
| Parameter | Symbol | Rating | Unit |
|---|---|---|---|
| Input | Forward Current (IF) | 50 | mA |
| Forward Pulse Current (IFP) | 1 | A | |
| Reverse Voltage (VR) | 6 | V | |
| Power Dissipation (P) | 70 | mW | |
| Output | Collector Power Dissipation (PC) | 150 | mW |
| Collector Current (IC) | 50 | mA | |
| Collector-Emitter Voltage (VCEO) | 80 | V | |
| Total Power Dissipation (Ptot) | - | 200 | mW |
| Isolation Voltage (Viso) | - | 3750 Vrms | - |
| Operating Temperature (Topr) | - | -55~+110 | |
| Storage Temperature (Tstg) | - | -55~+125 | |
| Soldering Temperature (Tsol) | - | 260 |
| Model | Body Mark | Grading Standard | IC(mA) | CTR (%) Min | CTR (%) Max |
|---|---|---|---|---|---|
| MEL357 | Blank | IF=5mA, VCE=5V, Ta=25C | 2.5 | 50 | 600 |
| MEL357A | A | IF=5mA, VCE=5V, Ta=25C | 4.0 | 80 | 160 |
| MEL357B | B | IF=5mA, VCE=5V, Ta=25C | 6.5 | 130 | 260 |
| MEL357C | C | IF=5mA, VCE=5V, Ta=25C | 10.0 | 200 | 400 |
| MEL357D | D | IF=5mA, VCE=5V, Ta=25C | 15.0 | 300 | 600 |
Dimensions (mm):
| Length: 7.00 0.30 | Width: 5.20 0.20 | Height: 4.55 -0.15/+0.25 |
| Lead Pitch (TYP): 2.54 | Lead Width: 0.40 0.10 | Lead Length: 2.1 0.1 |
| Lead Thickness: 0.15 |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer
Year Established:
2009
Employee Number:
300~500
Ecer Certification：
Verified Supplier
Beijing Silk Road Enterprise Management Services Co.,Ltd. is a professional company focus on integrated circuit ic business. Beijing Silk Road will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining and manufacture. Foun... Beijing Silk Road Enterprise Management Services Co.,Ltd. is a professional company focus on integrated circuit ic business. Beijing Silk Road will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining and manufacture. Foun...
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