My Inquiry
My Account
Diodes Incorporated DPC817W-B-TU
- Part No.:
- DPC817W-B-TU
- Manufacturer:
- Diodes Incorporated
- Package:
- 4-DIP (0.300", 7.62mm)
- Datasheet:
-
DPC817W-B-TU.pdf
- Description:
- PHOTO COUPLER MDIP-4 TUBE 100PCS
- Quantity:
- Payment:
- Shipping:
Inventory:2,319
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DPC817W-B-TU from Diodes Incorporated is a high-isolation, single-channel phototransistor optocoupler in MDIP-4 package, featuring 130–260% current transfer ratio (CTR) at IF = 5 mA, VCE = 5 V, 5,000 VRMS isolation voltage, and -55°C to +110°C operating temperature range. It provides galvanic signal isolation in industrial power supply feedback loops, PLC input conditioning, and microcontroller I/O level-shifting circuits.
For engineers reviewing the DPC817W-B-TU datasheet, DPC817W-B-TU pinout, DPC817W-B-TU application, or DPC817W-B-TU equivalent, key selection criteria include CTR rank B tolerance, UL/VDE safety certification, MDIP-4 creepage/clearance compliance, and guaranteed VCEO = 35 V collector-emitter breakdown under transient stress.
Technical Context
This optocoupler integrates an AlGaAs infrared LED emitter paired with a silicon NPN phototransistor output stage. Its internal structure enables DC-to-80 kHz signal transmission with 18 µs rise/fall times and <0.2 V VCE(SAT) at IC = 1 mA, supporting reliable on/off switching in isolated gate drive and analog feedback paths.
The device meets reinforced insulation requirements per UL 1577 and VDE EN IEC 60747-5-5, with 5×10¹⁰ Ω minimum isolation resistance and <1 pF floating capacitance-critical for noise immunity in AC/DC SMPS feedback and motor control enable lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CTR Range | 130–260% at IF = 5 mA, VCE = 5 V - ensures stable output current across manufacturing variance and aging in closed-loop regulation. |
| VCEO | 35 V - supports direct connection to 24 V industrial bus lines with margin against transients. |
| VISO | 5,000 VRMS - satisfies reinforced insulation for mains-connected equipment per IEC 62368-1 and IEC 61800-5-1. |
| Response Time | 18 µs rise/fall - enables PWM signal isolation up to ~80 kHz without duty cycle distortion. |
| Operating Temp | -55°C to +110°C - qualified for under-hood automotive auxiliary systems and industrial outdoor enclosures. |
| VCE(SAT) | Max 0.2 V at IF = 20 mA, IC = 1 mA - minimizes power loss and self-heating in high-duty-cycle digital isolation. |
| Isolation Resistance | ≥5×10¹⁰ Ω at DC 500 V - prevents leakage-induced logic errors in high-impedance microcontroller inputs. |
Pinout & Package
Package: MDIP-4 (Mini-Dual In-line Package, 4-pin), 9.66 mm × 7.62 mm body, 2.54 mm lead pitch, matte tin-plated leads, RoHS-compliant "Green" molded plastic (UL 94V-0).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Anode) | LED anode input | Forward bias connection for IR emitter; polarity dot-marked for orientation during PCB layout. |
| 2 (Cathode) | LED cathode input | Return path for LED drive current; requires series resistor to limit IF ≤ 60 mA max. |
| 3 (Emitter) | Phototransistor emitter output | Common reference node for output stage; tied to system ground on isolated side. |
| 4 (Collector) | Phototransistor collector output | Active-high switched output; pulled high via external load resistor to VCC_ISO. |
Key Features
| Feature | Design Value |
|---|---|
| High CTR Rank B | 130–260% min-to-max spread ensures consistent gain across batches without recalibration in analog feedback designs. |
| 5 kVRMS Isolation | Validated per UL 1577 and VDE EN IEC 60747-5-5 - eliminates need for external isolation barriers in Class II power supplies. |
| Low VCE(SAT) | ≤0.2 V enables direct interface with 3.3 V or 5 V logic without level-shifter circuitry on the output side. |
| Extended Temperature Range | -55°C to +110°C operation supports deployment in unheated factory floors and automotive engine bays. |
| Halogen-Free & RoHS3 Compliant | Meets EU Directive 2015/863/EU with <900 ppm Br/Cl and <1000 ppm Sb - required for export to EU/China markets. |
Applications
| AC/DC Power Supply Feedback | PLC Digital Input Isolation |
|---|---|
|
Use Scenario: Isolating voltage error amplifier output from primary-side controller in offline flyback converters. IC Role / Device Role / Timing Role: Galvanic signal coupler transmitting error correction pulses across safety barrier. Use Value: Maintains ±1% output regulation over line/load/temperature while meeting IEC 62368-1 creepage requirements. |
Use Scenario: Conditioning 24 V DC field sensor signals before routing to 3.3 V microcontroller GPIO. IC Role / Device Role / Timing Role: Level-shifting and noise-immune digital input buffer with transient suppression. Use Value: Rejects >1 kV common-mode surges per IEC 61000-4-5, preventing false triggering in factory automation. |
| Motor Drive Enable Interface | Industrial Serial Communication Isolation |
|
Use Scenario: Isolating enable/disable commands from logic-level MCU to high-voltage gate driver ICs. IC Role / Device Role / Timing Role: Safe, low-latency ON/OFF signal translator with fail-safe open-collector output. Use Value: Guarantees <18 µs response ensures synchronized start/stop of multi-phase inverters without shoot-through risk. |
Use Scenario: Breaking ground loops between RS-485 transceivers and host controller in distributed I/O networks. IC Role / Device Role / Timing Role: Bidirectional data isolator (used in pair) for half-duplex serial links. Use Value: Enables 250 kbps communication with <1 pF inter-winding capacitance, reducing EMI coupling by >40 dB. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar phototransistor optocoupler applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PC817XNNSZ0F (Sharp) | CTR 130–260%, same MDIP-4 package, but only UL certified (no VDE approval); VCEO = 35 V identical. | Lacks VDE EN IEC 60747-5-5 - unsuitable for European medical or industrial equipment requiring dual certification. | Select when UL-only compliance suffices and cost sensitivity outweighs regional certification needs. |
| TLP185(GB-TP,F) (Toshiba) | CTR 130–260%, same MDIP-4 footprint, but higher VCE(SAT) = 0.4 V max and slower 30 µs response time. | Higher saturation voltage increases power dissipation in high-duty-cycle switching; lower bandwidth limits PWM fidelity. | Prefer only if legacy design reuse mandates Toshiba footprint compatibility and speed is not critical. |
Compared with PC817XNNSZ0F and TLP185(GB-TP,F), DPC817W-B-TU delivers dual UL/VDE certification, lower VCE(SAT), and faster response-making it optimal for safety-critical, high-speed, or globally deployed industrial power and control systems.
Availability
DPC817W-B-TU is available at Aetrix Electronics and suitable for AC/DC power supply feedback, PLC digital input isolation, and motor drive enable interface applications requiring stable component supply, long-term lifecycle support, and full safety certification traceability.
Supply support for DPC817W-B-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, 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 industrial and automotive auxiliary systems requiring certified galvanic isolation, extended temperature operation, and green material compliance.
FAQ
What is the maximum forward current rating for DPC817W-B-TU?
The absolute maximum forward current (IF) is 60 mA per the datasheet's Maximum Ratings table. Continuous operation above 50 mA requires thermal derating; typical design uses 5–20 mA to balance CTR stability, LED lifetime (>100,000 hours at 10 mA), and response speed. Exceeding 60 mA risks irreversible LED degradation.
Does DPC817W-B-TU support linear analog signal transmission?
No-it is optimized for digital switching and pulse transmission, not linear analog isolation. Its CTR nonlinearity (±15% variation over IF = 1–20 mA) and 18 µs response time limit fidelity for analog signals above ~5 kHz. For linear applications, Diodes' ALM2402 or ISO124-based solutions are recommended.
Can DPC817W-B-TU be used in AEC-Q101 qualified automotive designs?
While DPC817W-B-TU meets AEC-Q101 test conditions per Diodes' quality documentation, it is not officially AEC-Q101 qualified. Automotive-grade variants (e.g., DPC817W-B-TU-AQ) require PPAP submission and IATF 16949-manufactured lots-contact Diodes directly for qualified part numbers and change control documentation.
What is the creepage and clearance distance for the MDIP-4 package?
The MDIP-4 package provides ≥7.62 mm creepage and ≥5.08 mm clearance between input (pins 1–2) and output (pins 3–4) terminals, validated per IEC 60664-1 for Pollution Degree 2 and Material Group IIIa. This satisfies reinforced insulation requirements for 300 V RMS working voltage in industrial environments.
DPC817W-B-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):
- 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 FAQ
1.How can I place an order for DPC817W-B-TU through Aetrix?
Please submit a Request for Quotation (RFQ) for DPC817W-B-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 DPC817W-B-TU reliable?
The price and inventory of DPC817W-B-TU 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 is usually 5 days.
3.What payment methods are accepted for DPC817W-B-TU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DPC817W-B-TU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DPC817W-B-TU?
DPC817W-B-TU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DPC817W-B-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 DPC817W-B-TU?
For technical support, including DPC817W-B-TU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DPC817W-B-TU requirements.
6.How does Aetrix verify that DPC817W-B-TU is sourced from the original manufacturer or authorized distributors?
All DPC817W-B-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 DPC817W-B-TU meets industry standards.
7.What is the process for return or replacement of DPC817W-B-TU?
All DPC817W-B-TU units undergo pre-shipment inspection (PSI). If there is an issue with DPC817W-B-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 DPC817W-B-TU part is unused and in its original packaging.
Return procedure for DPC817W-B-TU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DPC817W-B-TU Tags
-
LTV-816S
Lite-On Inc.
-
CNY17-3
Vishay Semiconductor Opto Division
-
LTV-816S-TA1
Lite-On Inc.
-
LTV-817
Lite-On Inc.
-
LTV-817S
Lite-On Inc.
-
LTV-817S-TA1
Lite-On Inc.
-
LTV-826S
Lite-On Inc.
-
FOD817CSD
onsemi
.jpg)
-
LTV-356T
Lite-On Inc.
-
LTV-357T
Lite-On Inc.
-
VO618A-3X017T
Vishay Semiconductor Opto Division
-
4N35S-TA1
Lite-On Inc.
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
