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Diodes Incorporated DPC817S-A-TR-V
- Part No.:
- DPC817S-A-TR-V
- Manufacturer:
- Diodes Incorporated
- Package:
- 4-SMD, Gull Wing
- Datasheet:
-
DPC817S-A-TR-V.pdf
- Description:
- PHOTO COUPLER SL-4 T&R 2K
- Quantity:
- Payment:
- Shipping:
Inventory:1,477
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Product details
Overview
DPC817S-A-TR-V from Diodes Incorporated is a high-isolation, single-channel phototransistor coupler in SL-4 package with 80–160% CTR at IF = 5 mA, VCE = 5 V; 35 V VCEO output rating; and 5000 VRMS input-output isolation voltage. It enables galvanic signal transfer in industrial power supplies, PLC I/O modules, and AC/DC feedback circuits where safety-rated insulation and stable current transfer are required.
For engineers reviewing the DPC817S-A-TR-V datasheet, DPC817S-A-TR-V pinout, DPC817S-A-TR-V application, or DPC817S-A-TR-V equivalent, key selection criteria include CTR rank A (80–160%), -55°C to +110°C operating range, SL-4 surface-mount footprint, VDE-certified isolation, and 18 µs rise/fall response time for moderate-speed digital interfacing.
Technical Context
The DPC817S-A-TR-V integrates an AlGaAs infrared LED emitter optically coupled to a silicon NPN phototransistor output stage. Its internal structure provides unidirectional signal transmission with no electrical continuity between input and output sides.
It operates with forward input current up to 60 mA and supports collector-emitter voltages up to 35 V. The device delivers guaranteed minimum CTR of 80% under standard test conditions (IF = 5 mA, VCE = 5 V), with saturation voltage ≤ 0.2 V at IC = 1 mA and IF = 20 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 35 V - Maximum allowable collector-emitter voltage before breakdown; sets safe output-side voltage swing limit in feedback or switching applications. |
| CTR (Min) | 80% - Minimum current transfer ratio at IF = 5 mA, VCE = 5 V; ensures reliable output drive margin across temperature and lifetime. |
| VISO | 5000 VRMS - Input-output isolation withstand voltage per UL1577 and VDE EN IEC 60747-5-5; qualifies for reinforced insulation in Class I/II AC mains-connected systems. |
| tR / tF | 18 µs - Rise and fall times at VCE = 2 V, IC = 2 mA, RL = 100 Ω; defines maximum usable data rate (~28 kHz) for digital on/off signaling. |
| TOPR | -55°C to +110°C - Full operational ambient temperature range; supports deployment in automotive engine bays, industrial motor drives, and outdoor power converters. |
| Package | SL-4 - Surface-mount, 4-pin, gull-wing leaded package with 2.54 mm pitch; compatible with standard reflow profiles and IPC-7351B land patterns. |
| Isolation Resistance | 5 × 10¹⁰ Ω - Minimum DC resistance between input and output at 500 V and 40–60% RH; confirms long-term insulation integrity in humid environments. |
Pinout & Package
SL-4 package: 4-pin surface-mount gull-wing outline with 2.54 mm lead pitch, 9.86 mm body width (E), and 4.60 mm body length (D). Pin 1 marked by dot; matte tin-plated leads compliant with MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Anode) | LED anode input | Positive terminal for forward-biasing infrared LED; requires series current-limiting resistor for IF control. |
| 2 (Cathode) | LED cathode input | Return path for LED current; connects to ground or low-side switch in driving circuitry. |
| 3 (Emitter) | Phototransistor emitter output | Common reference node for output stage; typically tied to system ground or pulled low in active-low configurations. |
| 4 (Collector) | Phototransistor collector output | Switched high-side output node; sinks current when LED is illuminated; used for open-collector logic or feedback loop closure. |
Key Features
| Feature | Design Value |
|---|---|
| VDE EN IEC 60747-5-5 certification | Validated isolation performance for safety-critical end equipment including medical and industrial power supplies. |
| CTR Rank A (80–160%) | Tight gain consistency enables predictable output current without post-production calibration in closed-loop feedback designs. |
| Green compound, halogen/antimony-free | Meets RoHS 3 (2015/863/EU) and JEDEC J-STD-020 MSL Level 1; supports lead-free reflow and environmentally compliant manufacturing. |
| 18 µs response time | Suitable for 20–30 kHz PWM signal isolation in SMPS feedback paths and digital I/O level translation without timing skew. |
| 5000 VRMS isolation | Enables direct interface between primary-side high-voltage domains and secondary-side control logic without external barrier components. |
Applications
| AC/DC Power Supply Feedback | PLC Digital Input Isolation |
|---|---|
Use Scenario: Closed-loop voltage regulation in offline flyback converters using optocoupler-based TL431 shunt regulator feedback. IC Role / Device Role / Timing Role: Signal isolator providing galvanically separated error amplifier output to primary-side PWM controller. Use Value: Maintains ±1% output regulation across line/load variations while meeting IEC 62368-1 reinforced insulation requirements. |
Use Scenario: Isolating 24 V DC field sensor inputs from 3.3 V/5 V logic-level PLC CPU backplane. IC Role / Device Role / Timing Role: Input stage translator converting industrial voltage signals into clean, noise-immune logic levels. Use Value: Rejects common-mode transients > 2 kV/µs and prevents ground loop interference in multi-node factory automation systems. |
| Motor Drive Enable/Disable Interface | Industrial Communication Line Receiver |
Use Scenario: Safe enable/disable signaling between isolated microcontroller and gate driver IC in three-phase inverter stages. IC Role / Device Role / Timing Role: Safety interlock coupler ensuring power stage remains disabled during fault conditions or reset sequences. Use Value: Provides fail-safe shutdown path with <18 µs propagation delay, supporting SIL-2 functional safety architecture. |
Use Scenario: Receiving RS-485 or CAN bus signals in electrically noisy factory environments with shared ground references. IC Role / Device Role / Timing Role: Physical layer isolator decoupling communication transceivers from host MCU to prevent bus contention and latch-up. Use Value: Eliminates ground potential differences up to ±1 kV and suppresses EFT bursts per IEC 61000-4-4 Level 4. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar phototransistor coupler applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PC817XNSZPF | Same SL-4 package, CTR 80–160%, but lacks VDE certification; rated only to 3750 VRMS isolation. | Acceptable for non-safety-critical consumer-grade power adapters but not certified for industrial or medical use. | Select when cost sensitivity outweighs regulatory compliance requirements and isolation voltage margin is sufficient. |
| TLP185(GB-TP,F) | SL-4 package, CTR 100–200%, VDE-certified, but higher VCE(SAT) (0.4 V typical) and slower response (20 µs). | Better suited for low-speed logic isolation; less ideal for precision feedback due to higher saturation loss. | Prefer when tighter CTR distribution or lower temperature drift is prioritized over speed and low-loss operation. |
Compared with PC817XNSZPF and TLP185(GB-TP,F), DPC817S-A-TR-V offers the optimal balance of VDE-certified 5000 VRMS isolation, 18 µs speed, and 80–160% CTR stability-making it preferred for regulated power supply feedback and safety-compliant industrial I/O.
Availability
DPC817S-A-TR-V is available at Aetrix Electronics and suitable for AC/DC power supply feedback, PLC digital input isolation, and motor drive enable/disable interfaces requiring stable component supply, full VDE certification, and extended temperature operation.
Supply support for DPC817S-A-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, factory automation, and safety-critical control systems.
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 long-term operation, continuous IF should be limited to ≤ 20 mA to maintain LED lifetime and CTR stability across temperature and aging.
Does DPC817S-A-TR-V support AC input signals on the LED side?
No - the input stage is a unidirectional AlGaAs LED; reverse voltage tolerance is only 6 V. AC coupling requires external rectification (e.g., anti-parallel diode or bridge) or use of a bidirectional optocoupler variant such as the IL420 series.
Can this part replace older DPC817 variants without layout changes?
Yes - DPC817S-A-TR-V uses the SL-4 package with identical 2.54 mm pin pitch and land pattern dimensions as documented in Diodes' Suggested Pad Layout (C = 2.54 mm, C1 = 9.22 mm). No PCB redesign is needed when upgrading from legacy SL-4 versions.
What safety certifications does DPC817S-A-TR-V hold beyond VDE?
In addition to VDE EN IEC 60747-5-5, it carries UL 1577 recognition (5000 VRMS) and CQC GB 4943.1-2022 approval. All certifications apply to the full SL-4 package configuration and are verified under the same test conditions specified in DS45855 Rev. 5-2.
DPC817S-A-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):
- 80% @ 5mA
- Current Transfer Ratio (Max):
- 160% @ 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-A-TR-V FAQ
1.How can I place an order for DPC817S-A-TR-V through Aetrix?
Please submit a Request for Quotation (RFQ) for DPC817S-A-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-A-TR-V reliable?
The price and inventory of DPC817S-A-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-A-TR-V is usually 5 days.
3.What payment methods are accepted for DPC817S-A-TR-V?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DPC817S-A-TR-V transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DPC817S-A-TR-V?
DPC817S-A-TR-V orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DPC817S-A-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-A-TR-V?
For technical support, including DPC817S-A-TR-V datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DPC817S-A-TR-V requirements.
6.How does Aetrix verify that DPC817S-A-TR-V is sourced from the original manufacturer or authorized distributors?
All DPC817S-A-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-A-TR-V meets industry standards.
7.What is the process for return or replacement of DPC817S-A-TR-V?
All DPC817S-A-TR-V units undergo pre-shipment inspection (PSI). If there is an issue with DPC817S-A-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-A-TR-V part is unused and in its original packaging.
Return procedure for DPC817S-A-TR-V:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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