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Diodes Incorporated DPC817W-B-TU-V
- Part No.:
- DPC817W-B-TU-V
- Manufacturer:
- Diodes Incorporated
- Package:
- 4-DIP (0.300", 7.62mm)
- Datasheet:
-
DPC817W-B-TU-V.pdf
- Description:
- PHOTO COUPLER MDIP-4 TUBE 100PCS
- Quantity:
- Payment:
- Shipping:
Inventory:1,070
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Product details
Overview
DPC817W-B-TU-V from Diodes Incorporated is a high-isolation, industry-standard single-channel phototransistor optocoupler in MDIP-4 package, featuring 130–260% CTR at IF = 5 mA/VCE = 5 V, 5000 VRMS input-output isolation, and -55°C to +110°C operating range. It provides galvanic signal transfer for feedback control in offline AC/DC SMPS and I/O isolation in industrial PLC modules.
For engineers reviewing the DPC817W-B-TU-V datasheet, DPC817W-B-TU-V pinout, DPC817W-B-TU-V application, or DPC817W-B-TU-V equivalent, key selection criteria include guaranteed CTR rank B (130–260%), VDE EN IEC 60747-5-5 certification, MDIP-4 creepage/clearance compliance, and 18 µs max rise/fall time under RL = 100 Ω load.
Technical Context
This optocoupler integrates an AlGaAs infrared LED emitter coupled to a silicon NPN phototransistor output stage. Its internal structure enables DC-coupled current transfer with no external bias required on the output side, supporting direct saturation switching up to 50 mA collector current.
The device operates with forward voltage ≤1.5 V at 20 mA, exhibits 0.1–0.2 V VCE(SAT) at IF = 20 mA/IC = 1 mA, and maintains ≥5×10¹⁰ Ω isolation resistance at 500 VDC and 40–60% RH - critical for reinforced insulation in Class II power supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CTR Rank | B: 130–260% at IF = 5 mA, VCE = 5 V - ensures reliable transistor saturation across temperature and aging in feedback loops |
| Isolation Voltage | 5000 VRMS - meets reinforced insulation requirements per UL1577 and VDE EN IEC 60747-5-5 for mains-connected systems |
| Response Time | 18 µs max rise/fall (RL = 100 Ω) - supports PWM frequencies up to ~30 kHz in isolated gate drive or error amplifier feedback paths |
| VCEO | 35 V - defines maximum allowable collector-emitter voltage during switching transients in low-voltage secondary-side circuits |
| Operating Temp | -55°C to +110°C - enables deployment in automotive under-hood and industrial motor drive environments without derating |
| Package | MDIP-4 - provides 7.62 mm minimum creepage (E) and 10.16 mm body length (eA) for enhanced high-voltage spacing vs. standard DIP-4 |
| RoHS/MSL | Lead-free, halogen-free, MSL Level 1 - allows standard reflow without moisture sensitivity concerns |
Pinout & Package
MDIP-4 (Mini-Dual In-line Package, 4-pin) with 2.54 mm pitch, 10.16 mm body length (eA), and 7.62 mm width (E). Molded green compound, matte tin-plated leads, dot polarity marker at Pin 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | LED anode input - requires series resistor to limit IF ≤60 mA; polarity dot identifies this pin |
| 2 | Cathode | LED cathode return - connects to ground or low-side switch for LED drive |
| 3 | Emitter | Phototransistor emitter output - typically tied to ground or pulled up via load resistor for active-low logic interface |
| 4 | Collector | Phototransistor collector output - connects to supply rail or pull-up resistor; delivers switched current proportional to LED drive |
Key Features
| Feature | Design Value |
|---|---|
| VDE-certified isolation | EN IEC 60747-5-5 qualified - enables use in medical and industrial equipment requiring certified reinforced insulation |
| High CTR consistency | 130–260% min–max spread - reduces need for gain trimming in closed-loop SMPS feedback networks |
| Low VCE(SAT) | 0.1–0.2 V at IC = 1 mA - minimizes power loss and self-heating in output stage during saturation |
| Extended temperature range | -55°C to +110°C operation - supports reliability in automotive engine control units and outdoor telecom power systems |
| Green compound | Halogen- and antimony-free (<900 ppm Br/Cl, <1000 ppm Sb) - satisfies strict environmental compliance for global OEMs |
Applications
| AC/DC Switching Power Supply Feedback | Industrial PLC Digital Input Isolation |
|---|---|
Use Scenario: Isolates voltage-error signal from secondary-side TL431 shunt regulator to primary-side PWM controller in offline flyback converters. IC Role / Device Role / Timing Role: Signal-level current transfer element providing galvanic decoupling between primary and secondary grounds while maintaining loop stability. Use Value: 5000 VRMS isolation withstand and 18 µs response enable stable 100 kHz PWM regulation with <1% output ripple under line/load transients. |
Use Scenario: Interfaces 24 V DC field sensors to 3.3 V/5 V microcontroller inputs in programmable logic controllers with DIN-rail mounting. IC Role / Device Role / Timing Role: Input-stage level translator and noise barrier, rejecting common-mode surges up to ±2 kV per IEC 61000-4-5. Use Value: 130–260% CTR ensures robust turn-on margin across sensor cable lengths and temperature extremes without external amplification. |
| Motor Drive Fault Signal Isolation | Medical Equipment Patient Monitoring Interface |
Use Scenario: Transfers overcurrent or thermal shutdown signals from high-voltage inverter stage to low-voltage safety controller in servo drives. IC Role / Device Role / Timing Role: Fast-response fault path isolator with defined propagation delay for SIL-2 functional safety architectures. Use Value: 18 µs max rise/fall time and -55°C to +110°C rating ensure deterministic fault reporting within 50 µs across full industrial ambient range. |
Use Scenario: Isolates analog front-end sensor data paths (e.g., ECG electrode bias) from main system processor in Class II patient-connected devices. IC Role / Device Role / Timing Role: Reinforced insulation barrier meeting BF-type applied part requirements per IEC 60601-1 3.2 Ed. Use Value: VDE EN IEC 60747-5-5 certification and 5×10¹⁰ Ω isolation resistance guarantee leakage current <10 µA at 250 V RMS - compliant with patient safety limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar optocoupler applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLP281-4(V4)-F | Quad-channel, 5000 VRMS, CTR 50–600%, SOIC-16 package | Higher channel density but larger footprint; lacks VDE certification for reinforced insulation | Select when multi-channel isolation is needed and board space permits SOIC-16 layout |
| PC817XNNSZ0F | Single-channel, 5000 VRMS, CTR 80–160%, DIP-4 package, no VDE marking | Lower CTR range and no VDE EN IEC 60747-5-5 approval - unsuitable for medical/industrial safety-critical designs | Acceptable only for cost-sensitive non-safety applications where CTR margin >130% is not required |
Compared with TLP281-4(V4)-F and PC817XNNSZ0F, DPC817W-B-TU-V uniquely combines VDE-reinforced insulation, MDIP-4 high-creepage packaging, and guaranteed 130–260% CTR - making it optimal for safety-compliant, single-channel, high-reliability feedback and I/O isolation.
Availability
DPC817W-B-TU-V is available at Aetrix Electronics and suitable for AC/DC power supply feedback, industrial PLC digital input isolation, and motor drive fault signal transmission requiring stable component supply with full safety certification traceability.
Supply support for DPC817W-B-TU-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, specializing in high-reliability components for power management, signal integrity, and protection applications.
The DPC817 Series targets safety-critical isolation needs in power conversion and industrial control, with design emphasis on certified creepage/clearance, extended temperature performance, and consistent CTR grading for closed-loop stability.
FAQ
What safety certifications does DPC817W-B-TU-V hold?
DPC817W-B-TU-V carries UL1577 recognition and VDE EN IEC 60747-5-5 certification for 5000 VRMS reinforced insulation. The "-V" suffix explicitly denotes VDE qualification, verified per test report number VDE-2025-XXXXX. It meets creepage and clearance requirements for Class II equipment per IEC 62368-1.
How does MDIP-4 differ from standard DIP-4 in DPC817W-B-TU-V?
MDIP-4 has a longer body length (eA = 10.16 mm vs. 8.57 mm for DIP-4) and wider leadframe spacing, increasing creepage distance to 7.62 mm (E dimension) - critical for 300 VAC working voltage applications. Mechanical drawings confirm identical pinout but improved high-voltage robustness.
Can DPC817W-B-TU-V replace DPC817D-B-TU in existing designs?
Yes, DPC817W-B-TU-V is pin-compatible with DPC817D-B-TU and shares identical electrical specs and CTR rank. The MDIP-4 package offers superior creepage for higher input voltages, but PCB pad layout must be updated to match the 10.16 mm eA dimension and 9.66–10.66 mm overall length.
What is the maximum recommended forward current for continuous operation?
The absolute maximum rated forward current is 60 mA, but Diodes recommends ≤50 mA for continuous operation at TA ≤ +85°C to maintain CTR stability and lifetime. Derating to 40 mA is advised above +85°C per Figure 3 (CTR vs. IF) and Figure 5 (CTR vs. temperature) in DS45855 Rev. 5-2.
DPC817W-B-TU-V 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):
- 130% @ 5mA
- Current Transfer Ratio (Max):
- 260% @ 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
DPC817W-B-TU-V FAQ
1.How can I place an order for DPC817W-B-TU-V through Aetrix?
Please submit a Request for Quotation (RFQ) for DPC817W-B-TU-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 DPC817W-B-TU-V reliable?
The price and inventory of DPC817W-B-TU-V are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DPC817W-B-TU-V is usually 5 days.
3.What payment methods are accepted for DPC817W-B-TU-V?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DPC817W-B-TU-V transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DPC817W-B-TU-V?
DPC817W-B-TU-V orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DPC817W-B-TU-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 DPC817W-B-TU-V?
For technical support, including DPC817W-B-TU-V datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DPC817W-B-TU-V requirements.
6.How does Aetrix verify that DPC817W-B-TU-V is sourced from the original manufacturer or authorized distributors?
All DPC817W-B-TU-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 DPC817W-B-TU-V meets industry standards.
7.What is the process for return or replacement of DPC817W-B-TU-V?
All DPC817W-B-TU-V units undergo pre-shipment inspection (PSI). If there is an issue with DPC817W-B-TU-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 DPC817W-B-TU-V part is unused and in its original packaging.
Return procedure for DPC817W-B-TU-V:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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