Specifications
| Type | Description |
|---|---|
| Part Number | XL6N138S-G |
| Manufacturer | XINGLIGHT |
| Product Type | Operational Amplifier |
| Category | Signal Chain |
| Package Case | SMD8; package outline dimensions listed in mm but numeric dimensions not provided in extracted text |
| Inferred Category | Signal_Chain |
| Component Type | Other |
| Product Series | XL6N138, XL6N139; part family shown on datasheet header; source page 1 |
| Package Options | DIP8, DIP8-M, SMD8; mechanical data and ordering information; source page 1 |
| Selected Package | SMD8; part number XL6N138S-G, ordering table shows XL6N13XS = SMD8; source page 2 |
| Shipping Quantity | 1000 pcs/Tape & Reel; XL6N13XS SMD8 ordering option; source page 2 |
| Marking Code | XL6N13X; XL6N13XS SMD8 ordering option, X denotes product series 8 or 9; source page 2 |
| Current Transfer Ratio Feature | 2000% typical; feature list; source page 1 |
| Isolation Voltage Feature | 5000 Vrms; feature list; source page 1 |
| Operating Temperature Feature | -40 to +85 °C; feature list; source page 1 |
| Low Input Current Requirement | 0.5 mA; feature list; source page 1 |
| TTL Compatible Output Low Voltage | 0.1 V typical; feature list states VOL typical; source page 1 |
| High Output Current Feature | 60 mA; feature list; source page 1 |
| Average Forward Input Current | 20 mA; maximum rating, TA=25°C unless otherwise specified; source page 3 |
| Peak Forward Input Current | 40 mA; maximum rating, 50% duty cycle, 1 ms pulse width; source page 3 |
| Input Peak Transient Current | 1.0 A; maximum rating, <1 us pulse width, 300 pps; source page 3 |
| Reverse Voltage | 5 V; maximum rating, TA=25°C unless otherwise specified; source page 3 |
| Input Power Dissipation | 35 mW; maximum rating, TA=25°C unless otherwise specified; source page 3 |
| Output Power Dissipation | 100 mW; maximum rating, TA=25°C unless otherwise specified; source page 3 |
| Output Current | 60 mA; maximum rating, TA=25°C unless otherwise specified; source page 3 |
| Supply Voltage and Output Voltage - 6N138 | 7 V maximum, -0.5 V minimum; source page 3 |
| Supply Voltage and Output Voltage - 6N139 | 18 V maximum, -0.5 V minimum; source page 3 |
| Emitter-Base Reverse Voltage | 0.5 V; maximum rating, Pin 5-7; source page 3 |
| Isolation Voltage | 5000 Vrms; RH<50%, t=1 min, TA=25°C; source page 3 |
| Total Power Dissipation | 135 mW; thermal characteristic; source page 3 |
| Operating Temperature | -40 to +85 °C; thermal characteristic; source page 3 |
| Storage Temperature Range | -55 to +125 °C; thermal characteristic; source page 3 |
| Recommended Power Supply Voltage | 4.5 to 18 V; recommended operating conditions; source page 3 |
| Recommended Forward Input Current ON | 0.5 to 12.0 mA; recommended operating conditions; source page 3 |
| Recommended Forward Input Voltage OFF | 0 to 0.8 V; recommended operating conditions; source page 3 |
| Forward Voltage | typ 1.40 V, max 1.75 V; IF=1.6 mA; source page 4 |
| Forward Voltage at TA=25°C | min 1.25 V, typ 1.40 V, max 1.70 V; IF=1.6 mA; source page 4 |
| Input Reverse Breakdown Voltage | min 5 V; IR=10 uA, TA=25°C; source page 4 |
| Input Capacitance | typ 60 pF; VR=0 V, f=1 MHz; source page 4 |
| Diode Temperature Coefficient | typ -1.8 mV/°C; IF=1.6 mA; source page 4 |
| High Level Supply Current | typ 0.05 uA, max 10 uA; 6N138/6N139, VCC=18 V, IF=0 mA, VO=open; source page 4 |
| Low Level Supply Current | typ 0.6 mA, max 1.5 mA; 6N138/6N139, VCC=18 V, IF=1.6 mA, VO=open; source page 4 |
| High Level Output Current - 6N138 | typ 0.01 uA, max 100 uA; VO=VCC=18 V, IF=0 mA; source page 4 |
| High Level Output Current - 6N139 | max 250 uA; VO=VCC=18 V, IF=0 mA; source page 4 |
| Low Level Output Voltage | typ 0.05 V; IF=0.5 mA, IO=2 mA, VCC=4.5 V; source page 4 |
| Low Level Output Voltage | typ 0.09 V; IF=1.6 mA, IO=8 mA, VCC=4.5 V; source page 4 |
| Low Level Output Voltage - 6N139 | typ 0.12 V, max 0.4 V; IF=5.0 mA, IO=15 mA, VCC=4.5 V; source page 4 |
| Low Level Output Voltage | typ 0.17 V; IF=12 mA, IO=24 mA, VCC=4.5 V; source page 4 |
| Low Level Output Voltage - 6N138 | typ 0.06 V; IF=1.6 mA, IO=4.8 mA, VCC=4.5 V; source page 4 |
| Current Transfer Ratio - 6N139 | min 400%, typ 2500%; IF=0.5 mA, VCC=4.5 V, VO=0.4 V; source page 4 |
| Current Transfer Ratio - 6N138 | min 500%, typ 2000%; IF=1.6 mA, VCC=4.5 V, VO=0.4 V; source page 4 |
| Current Transfer Ratio - 6N138 | min 300%, typ 2000%; IF=1.6 mA, VCC=4.5 V, VO=0.4 V; source page 4 |
| Isolation Resistance | min 1×10^12 Ω; VIO=500 Vdc, 40-60% RH; source page 4 |
| Floating Capacitance | typ 0.6 pF; f=1 MHz; source page 4 |
| Propagation Delay to Output High - 6N139 | typ 5 us, max 30 us; IF=0.5 mA, RL=4.7 kΩ, TA=0°C to 70°C, VCC=5 V; source page 5 |
| Propagation Delay to Output High - 6N139 | typ 5 us, max 25 us; IF=0.5 mA, RL=4.7 kΩ, TA=25°C, VCC=5 V; source page 5 |
| Propagation Delay to Output High - 6N139 | typ 0.2 us, max 2 us; IF=12 mA, RL=270 Ω, TA=0°C to 70°C, VCC=5 V; source page 5 |
| Propagation Delay to Output High - 6N139 | typ 0.2 us, max 1 us; IF=12 mA, RL=270 Ω, TA=25°C, VCC=5 V; source page 5 |
| Propagation Delay to Output High - 6N138 | max 15 us; IF=1.6 mA, RL=2.2 kΩ, TA=0°C to 70°C, VCC=5 V; source page 5 |
| Propagation Delay to Output High - 6N138 | typ 1.4 us, max 10 us; IF=1.6 mA, RL=2.2 kΩ, TA=25°C, VCC=5 V; source page 5 |
| Propagation Delay to Output Low - 6N139 | max 90 us; IF=0.5 mA, RL=4.7 kΩ, TA=0°C to 70°C, VCC=5 V; source page 5 |
| Propagation Delay to Output Low - 6N139 | typ 16 us, max 60 us; IF=0.5 mA, RL=4.7 kΩ, TA=25°C, VCC=5 V; source page 5 |
| Propagation Delay to Output Low - 6N139 | max 10 us; IF=12 mA, RL=270 Ω, TA=0°C to 70°C, VCC=5 V; source page 5 |
| Propagation Delay to Output Low - 6N139 | typ 1.7 us, max 7 us; IF=12 mA, RL=270 Ω, TA=25°C, VCC=5 V; source page 5 |
| Propagation Delay to Output Low - 6N138 | max 50 us; IF=1.6 mA, RL=2.2 kΩ, TA=0°C to 70°C, VCC=5 V; source page 5 |
| Propagation Delay to Output Low - 6N138 | typ 8 us, max 35 us; IF=1.6 mA, RL=2.2 kΩ, TA=25°C, VCC=5 V; source page 5 |
| Common Mode Transient Immunity at Output High | min 1000 V/us, typ 10000 V/us; IF=0 mA, RL=2.2 kΩ, TA=25°C, |VCM|=10 Vp-p; source page 5 |
| Common Mode Transient Immunity at Output Low | min 1000 V/us, typ 10000 V/us; IF=1.6 mA, RL=2.2 kΩ, TA=25°C, |VCM|=10 Vp-p; source page 5 |
| Reflow Preheat Temperature | 150 to 200 °C; reflow soldering profile; source page 10 |
| Reflow Preheat Time | 60 to 120 s; reflow soldering profile; source page 10 |
| Reflow Ramp-Up Rate | max 3 °C/s; TL to TP; source page 10 |
| Reflow Liquidus Temperature | 217 °C; reflow soldering profile; source page 10 |
| Reflow Time Above Liquidus | 60 to 150 s; tL above TL; source page 10 |
| Reflow Peak Temperature | 260 °C; reflow soldering profile; source page 10 |
| Reflow Peak Dwell Time | 30 s; time during which Tc is between TP-5 and TP; source page 10 |
| Reflow Ramp-Down Rate | max 6 °C/s; TP to TL; source page 10 |
| Maximum Reflow Count | No more than 3 times; reflow soldering note; source page 10 |
| Wave Soldering Average Ramp-Up Rate | ~200 °C/s; wave soldering profile feature; source page 10 |
| Wave Soldering Heating Rate During Preheat | 1 to 2 °C/s typical, 4 °C/s maximum; wave soldering profile feature; source page 10 |
| Wave Soldering Final Preheat Temperature | ~130 °C; Ts; source page 10 |
| Wave Soldering Preheat Time | >60 s; 25°C to Ts; source page 10 |
| Wave Soldering Peak Temperature | 260 °C; Tp; source page 10 |
| Wave Soldering Time Within Peak Temperature | 10 s; tp; source page 10 |
| Wave Soldering Ramp-Down Rate | 5 °C/s maximum; wave soldering profile feature; source page 10 |
| Hand Soldering Iron Temperature | 360 °C +5°C within 3 s; only for product rework or sample testing; source page 10 |
| SMD8 Reel Quantity | 1000 pcs/reel; packing table and summary; source page 11 |
| SMD8 Box Quantity | 2000 pcs/box; 2 reels/box; source page 11 |
| SMD8 Carton Quantity | 20000 pcs/carton; 10 boxes/carton; source page 11 |
| SMD8 Reel Size | φ330 mm; packing table; source page 11 |
| SMD8 Guard Band | 200 mm minimum; packing table note; source page 11 |
| Molding Compound Flammability Rating | UL 94V-0; mechanical data; source page 1 |
| Terminal Finish | Matte tin-plated leads; solderability per MIL-STD-202, Method 208; source page 1 |
| Document Validity | Valid until Dec 31, 2026; attention section; source page 12 |
| Datasheet Status | request_only |
Product Overview
The device is specified for isolated signal-chain use with 5000 Vrms isolation, 1×10^12 Ω minimum isolation resistance at VIO=500 Vdc and 40-60% RH, and 0.6 pF typical floating capacitance at 1 MHz. Recommended operation includes a 4.5 to 18 V power supply, 0.5 to 12.0 mA forward input current when on, and 0 to 0.8 V input voltage when off. For 6N138 operation, the datasheet lists 2000% typical current transfer ratio at IF=1.6 mA.
Key Features
- Photo Darlington optocoupler in XL6N138/XL6N139 series
- SMD8 selected package for XL6N138S-G ordering option
- 5000 Vrms isolation voltage rating
- 2000% typical current transfer ratio feature
- 0.5 mA low input current requirement
- 60 mA high output current feature
- -40 to +85 °C operating temperature range
- TTL-compatible output low voltage, 0.1 V typical
- 4.5 to 18 V recommended power supply range
- UL 94V-0 molding compound flammability rating
Typical Applications
- Isolated TTL-compatible signal interfaces
- Low input-current signal detection
- Photo Darlington optocoupler channels
- Signal-chain isolation circuits
- Surface-mount SMD8 assemblies
- 5 V logic isolation circuits
Procurement Notes
When requesting a quote for XL6N138S-G, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For analog and signal-chain sourcing, supply voltage, bandwidth, accuracy, noise level, package, temperature grade, input/output configuration and qualification requirements should be verified before approval.
FAQ
What package is used for XL6N138S-G?
The extracted ordering data identifies XL6N138S-G as the SMD8 package option. The datasheet also lists DIP8 and DIP8-M as package options for the XL6N138 and XL6N139 family.
What isolation voltage is specified for this optocoupler?
The datasheet facts list 5000 Vrms isolation voltage. The maximum-rating entry specifies this value under RH<50%, t=1 minute, and TA=25°C test conditions.
What operating supply range is recommended?
The recommended power supply voltage is 4.5 to 18 V. Recommended input conditions also include 0.5 to 12.0 mA forward input current when on and 0 to 0.8 V forward input voltage when off.
How is the SMD8 version packed for shipment?
The SMD8 ordering option is listed as 1000 pcs per tape and reel. The packing table also gives 1000 pcs per reel, 2000 pcs per box, 20000 pcs per carton, and a φ330 mm reel size.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 2, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.