Diodes Incorporated DPC817W-C-TU-V

Overview

DPC817W-C-TU-V from Diodes Incorporated is a high-isolation, CTR-rank-C phototransistor-based optocoupler in MDIP-4 package, delivering 200–400% current transfer ratio at IF = 5 mA and VCE = 5 V, with 5000 VRMS input-output isolation voltage and -55°C to +110°C operating temperature range. It enables galvanic signal transfer in industrial PLC I/O modules, AC/DC power supply feedback loops, and isolated microcontroller GPIO interfacing.

For engineers reviewing the DPC817W-C-TU-V datasheet, DPC817W-C-TU-V pinout, DPC817W-C-TU-V application, or DPC817W-C-TU-V equivalent, key selection criteria include CTR consistency across temperature, VDE-certified isolation compliance, MDIP-4 creepage/clearance suitability for reinforced insulation designs, and compatibility with 5V logic-level drive and 35V collector-emitter breakdown tolerance.

Technical Context

This device integrates a GaAs infrared LED emitter coupled to a silicon NPN phototransistor in a single-molded, green compound package. Its internal structure supports DC and low-frequency AC signal transmission with 80 kHz cutoff frequency and matched rise/fall times of ≤18 µs under RL = 100 Ω.

The phototransistor output stage operates in linear or saturated mode depending on load and bias conditions, with guaranteed VCE(SAT) ≤ 0.2 V at IC = 1 mA and IF = 20 mA, and ICEO ≤ 50 nA ensuring low leakage in high-impedance sensing paths.

Key Specifications

Pinout & Package

Package: MDIP-4 (Mini Dual In-line Package, 4-pin), 7.62 mm body width, 10.16 mm length, 3.5 mm height, matte tin-plated leads, JEDEC-standard footprint with 2.54 mm pitch.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar phototransistor optocoupler applications.

Compared with PC817X3NIP0F and TLP185(GR-LF4), DPC817W-C-TU-V uniquely combines VDE-certified 5000 VRMS isolation, MDIP-4 package with 7.62 mm creepage, and low 0.2 V saturation voltage-making it optimal for industrial feedback and PLC input designs demanding both safety compliance and minimal output voltage drop.

Availability

DPC817W-C-TU-V is available at Aetrix Electronics and suitable for industrial automation, power supply feedback, and automotive body electronics requiring stable component supply with full safety certification and extended temperature performance.

Supply support for DPC817W-C-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 industrial and automotive isolation needs, emphasizing safety certification, wide temperature operation, and green packaging-designed specifically for applications demanding regulatory-compliant galvanic separation without performance compromise.

FAQ

What safety certifications does DPC817W-C-TU-V hold?

DPC817W-C-TU-V carries UL1577 recognition (5000 VRMS) and VDE EN IEC 60747-5-5 certification, verified by official test reports. The "-V" suffix explicitly denotes VDE-compliant units. It meets reinforced insulation requirements for functional safety applications up to 300 V working voltage.

Can DPC817W-C-TU-V replace DPC817D-C-TU in existing designs?

Yes, DPC817W-C-TU-V is a direct MDIP-4 drop-in replacement for DIP-4-based DPC817D-C-TU in terms of electrical specs and CTR rank, but requires PCB footprint revision due to longer MDIP-4 body (10.16 mm vs. 7.62 mm). Creepage increases from 5.08 mm to 7.62 mm, improving isolation margin.

What is the maximum recommended forward current for continuous operation?

The absolute maximum forward current is 60 mA, but Diodes specifies 5–20 mA as the standard operating range for optimal CTR stability and LED lifetime. At 20 mA, VF is typically 1.25 V, yielding ~25 mW dissipation - well within the 100 mW input power limit.

Does this part support linear analog signal transmission?

Yes, DPC817W-C-TU-V operates linearly in its phototransistor region with CTR variation <±15% from 1–10 mA IF, enabling analog feedback in SMPS and sensor isolation. However, for precision linear applications, dedicated linear optocouplers like IL300 offer lower nonlinearity (<0.1%) and tighter gain matching.