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Diodes Incorporated DPC817D-A-TU
- Part No.:
- DPC817D-A-TU
- Manufacturer:
- Diodes Incorporated
- Package:
- 4-DIP (0.300", 7.62mm)
- Datasheet:
-
DPC817D-A-TU.pdf
- Description:
- PHOTO COUPLER DIP-4 TUBE 100PCS
- Quantity:
- Payment:
- Shipping:
Inventory:1,960
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Product details
Overview
DPC817D-A-TU from Diodes Incorporated is a single-channel, transistor-output photocoupler with 5000 VRMS input-output isolation, 80–160% CTR at IF = 5 mA / VCE = 5 V, and DIP-4 package. It provides galvanic signal transfer between isolated domains in industrial PLC I/O modules, AC/DC power supply feedback loops, and microcontroller-based motor control interfaces.
For engineers reviewing the DPC817D-A-TU datasheet, DPC817D-A-TU pinout, DPC817D-A-TU application, or DPC817D-A-TU equivalent, key selection criteria include guaranteed CTR range (80–160%), -55°C to +110°C operating temperature, UL/VDE safety certification, and 35 V VCEO output rating for robust switching in noisy environments.
Technical Context
The DPC817D-A-TU integrates an AlGaAs infrared LED coupled to a silicon NPN phototransistor in a single molded DIP-4 package. Its optically isolated structure enables bidirectional voltage level shifting without shared ground, supporting DC or low-frequency AC signal transmission up to 80 kHz bandwidth.
It operates with forward current up to 60 mA and delivers collector current up to 50 mA, with VCE(SAT) ≤ 0.2 V at IF = 20 mA / IC = 1 mA. The device meets UL1577 and VDE EN IEC 60747-5-5 standards, confirming reinforced insulation integrity under transient overvoltage conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VISO | 5000 VRMS: Enables safe isolation between primary-side high-voltage circuits and secondary-side logic controllers. |
| CTR (Min/Max) | 80–160% at IF = 5 mA, VCE = 5 V: Ensures reliable transistor saturation across temperature and aging, reducing need for external gain compensation. |
| VCEO | 35 V: Supports direct interface with 24 V industrial control rails and 3.3/5 V MCU outputs without external clamping. |
| tR/tF | ≤18 µs each: Sufficient for PWM feedback (e.g., SMPS error amplifiers) and digital on/off signaling up to ~30 kHz. |
| TOPR | -55°C to +110°C: Qualified for under-hood automotive auxiliary systems and industrial motor drives with wide ambient swings. |
| Isolation Resistance | ≥5 × 1010 Ω: Maintains signal integrity and leakage immunity in humid or contaminated PCB environments. |
| Package | DIP-4: Standard through-hole footprint compatible with legacy wave-soldering processes and manual prototyping. |
Pinout & Package
Package: 4-pin dual-in-line plastic (DIP-4), 0.3″ wide body, 2.54 mm pitch, matte tin-plated leads, RoHS-compliant "Green" compound (UL 94V-0).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Anode) | LED anode input | Connects to current-limited DC source (e.g., MCU GPIO via 330 Ω resistor); polarity dot marks this pin. |
| 2 (Cathode) | LED cathode return | Reference node for input-side current path; ties to GND or logic low reference. |
| 3 (Emitter) | Phototransistor emitter | Provides low-impedance output reference; typically tied to secondary-side GND or pulled up via load resistor. |
| 4 (Collector) | Phototransistor collector | Active-low switched output; connects to pull-up resistor and downstream logic or gate driver input. |
Key Features
| Feature | Design Value |
|---|---|
| UL1577 & VDE EN IEC 60747-5-5 certified | Validated 5000 VRMS isolation barrier for functional safety compliance in IEC 61800-5-1 and IEC 62368-1 systems. |
| CTR rank A (80–160%) | Narrower gain spread than generic photocouplers, enabling tighter loop stability in analog feedback designs without trimming. |
| Lead-free, halogen-free, antimony-free | Meets IPC-J-STD-020 Level 1 moisture sensitivity and global environmental mandates including RoHS 3 and China RoHS II. |
| VCEO = 35 V, IC = 50 mA | Directly drives small relays, opto-MOSFET gates, or logic-level inputs without external amplification stages. |
| Response time ≤18 µs | Supports closed-loop regulation in offline flyback converters with switching frequencies up to 100 kHz. |
Applications
| Industrial PLC Digital Input Module | AC/DC Switch-Mode Power Supply Feedback |
|---|---|
Use Scenario: Isolating 24 V DC field sensor signals (e.g., proximity switches) from 3.3 V ARM Cortex-M4 controller inputs in factory automation cabinets. IC Role / Device Role / Timing Role: Signal-level translator and ground-referenced noise barrier; operates in DC-coupled, non-timed mode. Use Value: Prevents ground loop currents and EFT-induced resets while maintaining <10 µs propagation delay for fast fault detection. |
Use Scenario: Transferring error amplifier output from secondary-side TL431 shunt regulator to primary-side PWM controller (e.g., UC384x) in 65 W open-frame power supply. IC Role / Device Role / Timing Role: Galvanically isolated analog feedback path; functions as linear-mode current-controlled switch in opto-coupled error amplifier circuit. Use Value: Enables precise output voltage regulation (±1%) across line/load transients without compromising safety isolation requirements. |
| Motor Drive Enable/Disable Interface | Microcontroller-Based HVAC Control Board |
Use Scenario: Interfacing isolated enable/disable commands from a safety-rated PLC to a 3-phase IGBT gate driver board in variable-frequency drive systems. IC Role / Device Role / Timing Role: High-reliability on/off signal isolator; used in static control path with no timing constraints beyond minimum pulse width (≥100 ns). Use Value: Guarantees fail-safe shutdown during emergency stop events by eliminating common-mode coupling into gate drive circuitry. |
Use Scenario: Isolating thermostat communication lines (e.g., RS-485 bias network) and fan speed control signals from main HVAC controller MCU in residential air handlers. IC Role / Device Role / Timing Role: Bidirectional DC signal isolator for control logic; supports both digital command and status reporting paths. Use Value: Eliminates conducted EMI from compressor startup from corrupting temperature sensor ADC readings or causing UART framing errors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar photocoupler applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PC817XNIP0X | CTR range 80–160%, same DIP-4 package, but rated only to +100°C (vs. +110°C) and lacks VDE certification. | Suitable for commercial-grade consumer power adapters but not industrial temperature or safety-critical use. | Select when cost is prioritized over extended temperature or regulatory coverage. |
| TLP183(GB-TP,F) | Higher CTR (100–300%), 5000 VRMS, but TO-220-like SOP-4 package requires re-layout; VCEO = 80 V. | Better suited for high-gain analog feedback where tighter CTR tolerance is needed, but incompatible with DIP-4 footprints. | Choose for improved loop gain margin in precision SMPS, accepting SMT assembly and thermal derating trade-offs. |
Compared with PC817XNIP0X, DPC817D-A-TU offers broader temperature range and full VDE/UL dual certification; versus TLP183(GB-TP,F), it retains legacy DIP-4 compatibility and lower thermal resistance in through-hole mounting, albeit with reduced maximum VCEO.
Availability
DPC817D-A-TU is available at Aetrix Electronics and suitable for industrial PLC I/O modules, AC/DC switch-mode power supplies, and motor drive enable interfaces requiring stable component supply, long-term lifecycle assurance, and certified isolation performance.
Supply support for DPC817D-A-TU 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, specializing in high-reliability components for industrial, computing, and automotive markets since 1960.
The DPC817 Series targets cost-sensitive yet safety-conscious isolation applications, delivering certified 5000 VRMS performance in standard DIP/SMD packages for power supply feedback, programmable logic control, and system-level signal conditioning.
FAQ
What is the minimum forward current required to guarantee CTR performance?
The DPC817D-A-TU guarantees CTR ≥80% at IF = 5 mA and VCE = 5 V per datasheet test condition. Operation below 2 mA may result in nonlinear response or insufficient collector current for logic-level detection; design margin recommends ≥3 mA for reliable turn-on across temperature and aging.
Can DPC817D-A-TU be used in linear analog feedback applications?
Yes - its CTR remains stable across IF = 1–10 mA and VCE = 1–10 V, enabling use in linear optocoupled error amplifiers. However, CTR variation with temperature (±15% over -55°C to +110°C) and aging (typ. -10% after 10,000 hours at 50°C) must be compensated in precision voltage regulation loops.
Does DPC817D-A-TU meet AEC-Q100 qualification?
No - the DPC817D-A-TU is not AEC-Q100 qualified. Diodes states that automotive-grade variants require specific change control, PPAP capability, and IATF 16949 manufacturing; this part is intended for industrial and commercial applications only.
What is the creepage and clearance distance for DIP-4 package?
The DIP-4 package provides ≥7.62 mm creepage and clearance between input (pins 1–2) and output (pins 3–4) sides, satisfying reinforced insulation requirements per IEC 60664-1 for 300 VRMS working voltage at Pollution Degree 2, as validated by UL1577 and VDE EN IEC 60747-5-5 testing.
DPC817D-A-TU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- DPC817
- Package/Case:
- 4-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- 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:
- Through Hole
- Supplier Device Package:
- 4-DIP
DPC817D-A-TU FAQ
1.How can I place an order for DPC817D-A-TU through Aetrix?
Please submit a Request for Quotation (RFQ) for DPC817D-A-TU 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 DPC817D-A-TU reliable?
The price and inventory of DPC817D-A-TU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DPC817D-A-TU is usually 5 days.
3.What payment methods are accepted for DPC817D-A-TU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DPC817D-A-TU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DPC817D-A-TU?
DPC817D-A-TU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DPC817D-A-TU 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 DPC817D-A-TU?
For technical support, including DPC817D-A-TU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DPC817D-A-TU requirements.
6.How does Aetrix verify that DPC817D-A-TU is sourced from the original manufacturer or authorized distributors?
All DPC817D-A-TU 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 DPC817D-A-TU meets industry standards.
7.What is the process for return or replacement of DPC817D-A-TU?
All DPC817D-A-TU units undergo pre-shipment inspection (PSI). If there is an issue with DPC817D-A-TU, 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 DPC817D-A-TU part is unused and in its original packaging.
Return procedure for DPC817D-A-TU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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