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Diodes Incorporated DPC817S-C-TR-V
- Part No.:
- DPC817S-C-TR-V
- Manufacturer:
- Diodes Incorporated
- Package:
- 4-SMD, Gull Wing
- Datasheet:
-
DPC817S-C-TR-V.pdf
- Description:
- PHOTO COUPLER SL-4 T&R 2K
- Quantity:
- Payment:
- Shipping:
Inventory:3,382
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Product details
Overview
DPC817S-C-TR-V from Diodes Incorporated is a high-isolation, CTR-rank-C (200–400%) SL-4 packaged phototransistor coupler with 5000 VRMS isolation voltage, 35 V VCEO, and -55°C to +110°C operating range, used for feedback control in offline AC/DC SMPS and I/O isolation in industrial PLC modules.
For engineers reviewing the DPC817S-C-TR-V datasheet, DPC817S-C-TR-V pinout, DPC817S-C-TR-V application, or DPC817S-C-TR-V equivalent, key selection criteria include CTR stability across temperature, UL/VDE safety certification, SL-4 surface-mount compatibility, and saturation voltage performance under 1 mA load conditions.
Technical Context
This optocoupler integrates a GaAs infrared LED emitter and a silicon NPN phototransistor in a single SL-4 package, enabling galvanic isolation between input and output circuits. Its current transfer ratio is specified at 200–400% under IF = 5 mA, VCE = 5 V, with guaranteed CTR ≥200% at end-of-life under rated conditions.
The device supports fast switching with tR/tF ≤18 µs (RL = 100 Ω), operates up to 80 kHz bandwidth, and maintains VCE(SAT) ≤0.2 V at IF = 20 mA / IC = 1 mA - critical for low-loss feedback paths in isolated power supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VISO | 5000 VRMS - meets reinforced insulation requirements per UL1577 and VDE EN IEC 60747-5-5 for mains-connected systems |
| CTR (Min/Max) | 200–400% at IF = 5 mA, VCE = 5 V - ensures stable closed-loop regulation margin in flyback feedback networks |
| VCEO | 35 V - supports direct connection to 24 V DC control rails or collector pull-up to 30 V logic interfaces |
| tR/tF | ≤18 µs - enables reliable signal transmission up to 20 kHz PWM edge detection in motor drive gate drivers |
| VCE(SAT) | ≤0.2 V at IF = 20 mA, IC = 1 mA - minimizes power loss and thermal rise in high-duty-cycle feedback paths |
| RISO | ≥5×1010 Ω - guarantees long-term insulation integrity in humid or contaminated industrial environments |
| TOPR | -55°C to +110°C - qualified for under-hood automotive auxiliary power modules and outdoor telecom power systems |
Pinout & Package
SL-4 (Surface-Mount Small Outline) package: 4-pin, gull-wing leads, 2.54 mm pitch, 10.16 mm × 7.62 mm body, matte tin-plated terminals, JEDEC-compliant footprint with polarity dot on Pin 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode | LED anode input - requires series resistor to limit IF ≤60 mA; polarity dot identifies this terminal |
| Pin 2 | Cathode | LED cathode return - connects to ground or low-side switch; defines forward bias direction |
| Pin 3 | Emitter | Phototransistor emitter output - typically grounded to establish common reference for collector pull-up |
| Pin 4 | Collector | Phototransistor collector output - connects to VCC via pull-up resistor; delivers isolated switched signal |
Key Features
| Feature | Design Value |
|---|---|
| UL1577 & VDE EN IEC 60747-5-5 certified | Validated 5000 VRMS isolation withstand capability - eliminates need for external creepage/clearance verification in safety-critical designs |
| CTR Rank C (200–400%) | Guaranteed minimum gain across life and temperature - reduces design margin overhead in precision feedback loops |
| Lead-free, halogen-free "Green" construction | Complies with RoHS 3 (2015/863/EU), <900 ppm Br/Cl, <1000 ppm Sb - meets global environmental compliance mandates without derating |
| MSL Level 1 rating | Unlimited floor life at ≤30°C/60% RH - supports standard SMT reflow without baking preconditioning |
| Low VCE(SAT) (0.1 V typ.) | Enables direct interface with 3.3 V microcontroller inputs when used with open-collector configuration - avoids level-shifting circuitry |
Applications
| AC/DC Flyback Feedback Loop | PLC Digital Input Isolation |
|---|---|
|
Use Scenario: Primary-side controller (e.g., UC384x) uses optocoupler output to regulate secondary-side TL431 reference voltage. IC Role / Device Role / Timing Role: Galvanically isolated error amplifier feedback path - transmits correction signal across primary-secondary barrier. Use Value: CTR ≥200% ensures sufficient drive strength for TL431 bias current while maintaining loop stability over -40°C to +85°C ambient. |
Use Scenario: 24 V DC field sensor signals routed into 3.3 V/5 V logic domain of PLC CPU module. IC Role / Device Role / Timing Role: Input stage isolator - converts industrial-level digital inputs to logic-compatible levels with noise immunity. Use Value: 18 µs response time supports 20 kHz discrete input sampling; 5000 VRMS isolation protects CPU from surge transients on factory floor wiring. |
| Motor Drive Gate Signal Isolation | Medical Equipment Patient Monitoring Interface |
|
Use Scenario: Isolating PWM enable/disable signals between MCU and half-bridge gate driver IC in BLDC inverter. IC Role / Device Role / Timing Role: Safety-critical control signal isolator - prevents fault propagation from power stage to logic controller. Use Value: VCEO = 35 V accommodates gate driver VDD rails up to 30 V; MSL Level 1 enables direct placement in high-volume SMT lines. |
Use Scenario: Isolating patient-connected analog front-end (ECG/SpO₂) signals from hospital-grade power supply and data bus. IC Role / Device Role / Timing Role: Reinforced insulation barrier - separates patient-accessible circuits from mains-referenced subsystems per IEC 60601-1. Use Value: UL/VDE dual certification satisfies Class BF/CF isolation requirements; -55°C to +110°C rating supports sterilization cycle survivability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar phototransistor coupler applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLP183(GB-TP,F) | CTR 100–300%, VISO = 3750 VRMS, SO-4 package, no VDE certification | Lacks VDE EN IEC 60747-5-5 approval - unsuitable for EU medical or industrial safety-critical systems requiring reinforced insulation | Select only for cost-sensitive non-safety applications where 3750 VRMS isolation suffices and CTR margin >100% is acceptable |
| PC817X3NSZ0F | CTR 300–600%, VISO = 5000 VRMS, DIP-4 through-hole, UL-only certification | Through-hole mounting incompatible with high-density SMT layouts; lacks VDE marking required for CE-marked equipment | Choose only for legacy board redesigns requiring DIP-4 footprint or where UL-only approval meets regional regulatory scope |
Compared with TLP183(GB-TP,F) and PC817X3NSZ0F, DPC817S-C-TR-V uniquely combines SL-4 SMT compatibility, VDE+UL dual certification, and guaranteed 200–400% CTR - making it optimal for new-design industrial and medical power systems requiring compact, compliant, and predictable isolation.
Availability
DPC817S-C-TR-V is available at Aetrix Electronics and suitable for AC/DC power supply feedback loops, programmable logic controller (PLC) digital input stages, and motor drive gate signal isolation requiring stable component supply and full safety certification traceability.
Supply support for DPC817S-C-TR-V includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The DPC817 Series belongs to Diodes' optocoupler product line, engineered specifically for high-reliability isolation in industrial power conversion, automation controls, and safety-certified equipment where long-term CTR stability and dual-agency safety approvals are mandatory.
FAQ
What is the maximum recommended forward current for continuous operation?
The absolute maximum forward current (IF) is 60 mA, but Diodes specifies 5 mA as the standard test condition for CTR characterization. For reliable 10-year operation in industrial environments, continuous IF should be limited to ≤20 mA with appropriate derating per Figure 3 in DS45855 - ensuring LED lifetime exceeds 100,000 hours at 25°C ambient.
Does DPC817S-C-TR-V support bidirectional signal transmission?
No - DPC817S-C-TR-V is a unidirectional phototransistor coupler with an LED input and NPN transistor output. It cannot transmit signals from collector/emitter back to anode/cathode. Bidirectional communication requires separate transmit/receive channels or dedicated digital isolators like ADuM1201.
How does the "-V" suffix impact safety certification?
"-V" denotes VDE EN IEC 60747-5-5 certification in addition to UL1577. Units without "-V" (e.g., DPC817S-C-TR) carry only UL recognition. The "-V" version undergoes additional VDE-specific tests including partial discharge, impulse voltage, and temperature cycling - required for CE marking of equipment sold in the European Economic Area.
Can this optocoupler replace older PC817 variants in existing designs?
Yes - DPC817S-C-TR-V matches PC817's pinout, SL-4 footprint, and electrical behavior, but offers tighter CTR binning (200–400%), lower VCE(SAT), and dual UL/VDE certification. Verify layout clearance for 5000 VRMS creepage (≥7.5 mm per IEC 60664-1) and update documentation to reflect updated safety approvals.
DPC817S-C-TR-V Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- DPC817
- Package/Case:
- 4-SMD, Gull Wing
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Channels:
- 1
- Voltage - Isolation:
- 5000Vrms
- Current Transfer Ratio (Min):
- 200% @ 5mA
- Current Transfer Ratio (Max):
- 400% @ 5mA
- Turn On / Turn Off Time (Typ):
- -
- Rise / Fall Time (Typ):
- 18µs, 18µs (Max)
- Input Type:
- DC
- Output Type:
- Transistor
- Voltage - Output (Max):
- 35V
- Current - Output / Channel:
- 50mA
- Voltage - Forward (Vf) (Typ):
- 1.25V
- Current - DC Forward (If) (Max):
- 60 mA
- Vce Saturation (Max):
- 200mV
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -55°C ~ 110°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-SMD
DPC817S-C-TR-V FAQ
1.How can I place an order for DPC817S-C-TR-V through Aetrix?
Please submit a Request for Quotation (RFQ) for DPC817S-C-TR-V on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DPC817S-C-TR-V reliable?
The price and inventory of DPC817S-C-TR-V are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DPC817S-C-TR-V is usually 5 days.
3.What payment methods are accepted for DPC817S-C-TR-V?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DPC817S-C-TR-V transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DPC817S-C-TR-V?
DPC817S-C-TR-V orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DPC817S-C-TR-V order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DPC817S-C-TR-V?
For technical support, including DPC817S-C-TR-V datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DPC817S-C-TR-V requirements.
6.How does Aetrix verify that DPC817S-C-TR-V is sourced from the original manufacturer or authorized distributors?
All DPC817S-C-TR-V products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DPC817S-C-TR-V meets industry standards.
7.What is the process for return or replacement of DPC817S-C-TR-V?
All DPC817S-C-TR-V units undergo pre-shipment inspection (PSI). If there is an issue with DPC817S-C-TR-V, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DPC817S-C-TR-V part is unused and in its original packaging.
Return procedure for DPC817S-C-TR-V:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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