The ISOMICRON 6N138/6N139 is a high isolation photo coupler designed for reliable signal transmission in demanding electronic applications. Featuring a DC input with a high-speed transistor output, this device offers robust isolation of 5000 VRMS and operates across a wide temperature range of -40C to 100C. Its design, which separates the photodiode and Darlington transistor, significantly enhances speed compared to conventional optocouplers. Ideal for low current line receivers, current loop receivers, and interfacing with CMOS-LSTTL-TTL logic, it also serves as a pulse transformer replacement. The 6N138/6N139 series is compliant with REACH and available as Halogen-free (optional).
| Parameter | Symbol | Min | Typ | Max | Unit | Test Condition / Notes |
| Absolute Maximum Ratings |
| Forward Current | IF | | | 25 | mA | |
| Peak Forward Current | IFP | | | 50 | mA | 50% duty, 1ms P.W |
| Peak Transient Current | IF(trans) | | | 1 | A | 1s P.W, 300pps |
| Reverse Voltage | VR | | | 5 | V | |
| Input Power Dissipation | PI | | | 100 | mW | |
| Supply Voltage | VCC | -0.5 | | 18 | V | |
| Output Voltage | VO | -0.5 | | 18 | V | |
| Output Current | IO | | | 60 | mA | |
| Emitter-Base Reverse Voltage | VEBR | | | 0.5 | V | |
| Output Power Dissipation | PO | | | 100 | mW | |
| Total Power Dissipation | Ptot | | | 200 | mW | |
| Isolation Voltage | Viso | 5000 | | | Vrms | AC For 1 Minute, R.H. = 40 ~ 60% |
| Operating Temperature | Topr | -40 | | 100 | C | |
| Storage Temperature | Tstg | -55 | | 125 | C | |
| Soldering Temperature | Tsol | | | 260 | C | For 10 seconds |
| Electrical Optical Characteristics (Ta=0 to 70C, unless specified otherwise) |
| Forward Voltage | VF | | 1.28 | 1.7 | V | IF=1.6mA |
| Reverse Current | IR | | | 10 | A | VR=5V |
| Input Capacitance | Cin | | 60 | | pF | V=0, f=1MHz |
| High Level Supply Current | ICCH | | 0.05 | 10 | A | IF=0mA, VO=Open, VCC=18V |
| Low Level Supply Current | ICCL | | 0.6 | 1.5 | mA | IF=1.6mA, VO=Open, VCC=18V |
| Logic High Output Current (6N138) | IOH | | 0.01 | 100 | A | IF=0mA, VO=VCC=18V |
| Logic High Output Current (6N139) | IOH | | | 250 | A | IF=0mA, VO=VCC=18V |
| Transfer Characteristics (at Ta=0 to 70C, unless specified otherwise) |
| Current Transfer Ratio (6N139) | CTR | 400 | | 2500 | % | IF = 0.5mA ,VO = 0.4V, VCC=4.5V |
| Current Transfer Ratio (6N139) | CTR | 500 | | 2600 | % | IF = 1.6mA ,VO = 0.4V, VCC=4.5V |
| Current Transfer Ratio (6N138) | CTR | 300 | | 2600 | % | IF = 1.6mA ,VO = 0.4V, VCC=4.5V |
| Logic Low Output Voltage (6N139) | VOL | | 0.04 | 0.4 | V | IF = 0.5mA ,IO = 2mA, VCC=4.5V |
| Logic Low Output Voltage (6N139) | VOL | | 0.07 | 0.4 | V | IF = 1.6mA ,IO = 8mA, VCC=4.5V |
| Logic Low Output Voltage (6N139) | VOL | | 0.11 | 0.4 | V | IF = 5mA ,IO = 15mA, VCC=4.5V |
| Logic Low Output Voltage (6N139) | VOL | | 0.15 | 0.4 | V | IF = 12mA ,IO = 24mA, VCC=4.5V |
| Logic Low Output Voltage (6N138) | VOL | | 0.05 | 0.4 | V | IF = 1.6mA ,IO = 4.8mA, VCC=4.5V |
| Isolation Resistance | Riso | 10^12 | | 10^14 | | DC500V, 40 ~ 60% R.H. |
| Floating Capacitance | CiO | | 0.3 | 1 | pF | V=0, f=1MHz |
| Switching Characteristics (Ta=0 to 70C, VCC=5V, unless specified otherwise) |
| Propagation Delay Time to Logic Low (6N139) | tPHL | | 5 | 25 | s | IF=0.5mA, RL=4.7k, Ta=25C |
| Propagation Delay Time to Logic Low (6N139) | tPHL | | 0.2 | 1 | s | IF=12mA, RL=270, Ta=25C |
| Propagation Delay Time to Logic Low (6N138) | tPHL | | 1.4 | 10 | s | IF=1.6mA, RL=2.2k, Ta=25C |
| Propagation Delay Time to Logic High (6N139) | tPLH | | 22 | 60 | s | IF=0.5mA, RL=4.7k, Ta=25C |
| Propagation Delay Time to Logic High (6N139) | tPLH | | 2.1 | 7 | s | IF=12mA, RL=270, Ta=25C |
| Propagation Delay Time to Logic High (6N138) | tPLH | | 10.7 | 35 | s | IF=1.6mA, RL=2.2k, Ta=25C |
| Common Mode Transient Immunity at Logic High (6N139) | CMH | 1000 | | | V/s | IF = 0mA , VCM=10Vpp, RL=2.2k, Ta=25C |
| Common Mode Transient Immunity at Logic High (6N138) | CMH | 1000 | | | V/s | IF = 0mA , VCM=10Vpp, RL=2.2k, Ta=25C |
| Common Mode Transient Immunity at Logic Low (6N139) | CML | 1000 | | | V/s | IF=1.6mA , VCM=10Vpp, RL=2.2k, Ta=25C |
| Common Mode Transient Immunity at Logic Low (6N138) | CML | 1000 | | | V/s | IF=1.6mA , VCM=10Vpp, RL=2.2k, Ta=25C |
| Ordering Information |
| Part Number | Package | Marking | Packing | Packing Size | Quantity | Notes |
| 6N138-000E | DIP8 | 6N13X /YYWW | Tube | 500mm | 45 | |
| 6N139-000E | DIP8 | 6N13X /YYWW | Tube | 500mm | 45 | |
| 6N138-100E | DIP8-M | 6N13X /YYWW | Tube | 500mm | 45 | |
| 6N139-100E | DIP8-M | 6N13X /YYWW | Tube | 500mm | 45 | |
| 6N138-500E | DIP8-SL | 6N13X /YYWW | Reel | 13 | 1000 | |
| 6N139-500E | DIP8-SL | 6N13X /YYWW | Reel | 13 | 1000 | |
