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Diodes Incorporated DPC817L-D-TR
- Part No.:
- DPC817L-D-TR
- Manufacturer:
- Diodes Incorporated
- Package:
- 4-SMD, Gull Wing
- Datasheet:
-
DPC817L-D-TR.pdf
- Description:
- PHOTO COUPLER SLM-4 T&R 2K
- Quantity:
- Payment:
- Shipping:
Inventory:4,060
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Product details
Overview
DPC817L-D-TR from Diodes Incorporated is a high-isolation, single-channel phototransistor coupler in SLM-4 package, featuring 5000 VRMS isolation voltage, CTR ≥50% at IF = 5 mA / VCE = 5 V, BVCEO = 35 V, and operating temperature range of −55°C to +110°C. It provides galvanic signal transfer in industrial power supply feedback loops, PLC I/O isolation, and AC/DC converter control interfaces.
For engineers reviewing the DPC817L-D-TR datasheet, DPC817L-D-TR pinout, DPC817L-D-TR application, or DPC817L-D-TR equivalent, key selection criteria include guaranteed CTR rank (D = 50–600%), UL/VDE safety certification, SL-4/SLM-4 footprint compatibility, and −55°C to +110°C extended temperature operation for harsh-environment designs.
Technical Context
The DPC817L-D-TR integrates an AlGaAs infrared LED optically coupled to a silicon NPN phototransistor in a single molded plastic package. Its input-output isolation barrier meets UL1577 (5000 VRMS) and VDE EN IEC 60747-5-5 standards, with creepage/clearance >7.6 mm per IEC60664-1.
It operates with DC input current (IF ≤ 60 mA), delivers linear current transfer up to IC = 50 mA, and exhibits typical response times of 18 µs (rise/fall) into 100 Ω load. The device supports both saturated and active-region output operation depending on external biasing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Voltage | 5000 VRMS - enables reinforced insulation per IEC62368-1 and IEC61000-4-5 in Class II power supplies |
| CTR (Min) | 50% at IF = 5 mA, VCE = 5 V - ensures reliable switching margin across full temperature range without external gain compensation |
| Collector-Emitter Breakdown | 35 V - supports direct interface with 24 V DC control rails and 3.3/5 V logic-level outputs via pull-up |
| Operating Temperature | −55°C to +110°C - qualified for industrial motor drives, solar inverters, and automotive under-hood auxiliary systems |
| Package | SLM-4 - surface-mount variant with 11.5–12.1 mm body width, optimized for automated placement and high-density PCB layouts |
| Response Time | 18 µs rise/fall - sufficient for PWM feedback (≤50 kHz) and digital I/O isolation in PLC modules |
| Safety Certifications | UL1577, CQC GB4943.1-2022, VDE EN IEC 60747-5-5 - permits use in medical, industrial, and consumer end-equipment requiring certified isolation barriers |
Pinout & Package
SLM-4 package: 4-pin surface-mount, 2.54 mm pitch, 11.88 mm × 7.62 mm body size, matte tin-plated leads, JEDEC-standard footprint with polarity dot on Pin 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | LED anode - requires series resistor to limit IF to ≤60 mA; polarity-sensitive connection |
| 2 | Cathode | LED cathode - connects to ground or low-side switch; defines forward conduction direction |
| 3 | Emitter | Phototransistor emitter - typically grounded to enable common-emitter output configuration |
| 4 | Collector | Phototransistor collector - connects to pull-up resistor or logic input; carries isolated output current |
Key Features
| Feature | Design Value |
|---|---|
| High CTR consistency | CTR rank D (50–600%) - reduces need for binning or system-level calibration in volume production |
| Reinforced isolation barrier | 5000 VRMS with >7.6 mm creepage - eliminates need for additional isolation components in Class II SMPS feedback paths |
| Extended temperature operation | −55°C to +110°C - maintains CTR stability and leakage performance across automotive and industrial thermal cycles |
| Green compound & RoHS compliance | Halogen-free, antimony-free, lead-free - satisfies IPC-J-STD-020 Level 1 moisture sensitivity and global environmental directives |
| VDE-certified variant option | DPC817L-D-TR1-V available - adds VDE EN IEC 60747-5-5 approval for EU medical and industrial equipment certification |
Applications
| Industrial PLC I/O Isolation | AC/DC Power Supply Feedback |
|---|---|
Use Scenario: Digital input module receiving 24 V DC field signals from sensors and actuators in factory automation cabinets. IC Role / Device Role / Timing Role: Signal-level galvanic isolator between field-side 24 V circuitry and controller-side 3.3 V logic, preventing ground loop noise and fault propagation. Use Value: Maintains ≥50% CTR over −25°C to +75°C ambient, enabling robust detection of low-current dry-contact closures without external amplification. |
Use Scenario: Secondary-side voltage sensing in isolated flyback converters delivering regulated 12 V/5 V outputs for embedded systems. IC Role / Device Role / Timing Role: Optically transmits error amplifier output across isolation barrier to primary-side PWM controller, closing regulation loop. Use Value: 18 µs response time supports stable feedback at 50 kHz switching frequency; 35 V VCEO accommodates typical TL431 reference voltage headroom. |
| Motor Drive Enable/Disable Interface | Medical Equipment Patient Monitoring |
Use Scenario: Isolating enable/disable commands from microcontroller to gate driver ICs in variable-frequency AC motor inverters. IC Role / Device Role / Timing Role: Level-shifting and fault-isolating logic signal between low-voltage MCU domain and high-voltage power stage domain. Use Value: 5000 VRMS isolation prevents high dv/dt noise from power switches from corrupting MCU GPIO states during EMI events. |
Use Scenario: Isolating analog sensor front-end (ECG, SpO₂) from main processing unit in portable patient monitors. IC Role / Device Role / Timing Role: Providing basic digital status signaling (e.g., sensor connected/disconnected, alarm asserted) across patient-connected barrier. Use Value: UL1577 and VDE EN IEC 60747-5-5 certifications satisfy MDD/IVDR requirements for 1× MOPP isolation in Class I medical devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar phototransistor coupler applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLP185(GB-TP,F) | CTR min 50%, same 5000 VRMS isolation, but TO-263-4L package (larger footprint, higher thermal mass) | Preferred where board space allows and higher power dissipation margin is needed (PC = 170 mW vs. 150 mW) | Select when thermal derating above 85°C ambient is required; not drop-in compatible due to different land pattern |
| PC817XNIP0X | CTR min 80%, same DIP-4/SLM-4 variants, but only UL1577 certified (no VDE EN IEC 60747-5-5) | Suitable for non-medical industrial use where VDE certification is not mandated | Choose for cost-sensitive applications needing higher baseline CTR but lacking regulatory requirement for dual safety approvals |
Compared with TLP185(GB-TP,F), DPC817L-D-TR offers smaller SLM-4 footprint and VDE certification; versus PC817XNIP0X, it trades higher minimum CTR for broader safety compliance-making it optimal for medical-adjacent and globally certified industrial designs.
Availability
DPC817L-D-TR is available at Aetrix Electronics and suitable for industrial PLC I/O modules, AC/DC power supply feedback circuits, and motor drive enable interfaces requiring stable component supply, long-term lifecycle support, and certified isolation performance.
Supply support for DPC817L-D-TR 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 integrated circuits, 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, automation, and safety-critical signal transmission applications.
FAQ
What is the CTR rank designation for DPC817L-D-TR?
The "D" in DPC817L-D-TR denotes CTR Rank D, specifying a guaranteed minimum Current Transfer Ratio of 50% and maximum of 600% at IF = 5 mA and VCE = 5 V, measured at +25°C. This wide CTR range accommodates aging effects and temperature drift while maintaining functional margin in closed-loop feedback systems.
Does DPC817L-D-TR meet VDE safety standards?
Yes-DPC817L-D-TR complies with VDE EN IEC 60747-5-5 for optocouplers, in addition to UL1577 and CQC GB4943.1-2022. This triple certification confirms its suitability for reinforced insulation in medical, industrial, and consumer equipment requiring internationally recognized safety validation.
Can DPC817L-D-TR replace DPC817S-A-TR in the same PCB layout?
No-DPC817L-D-TR uses the SLM-4 package (11.5–12.1 mm width), whereas DPC817S-A-TR uses SL-4 (9.86–10.46 mm width). Their land patterns differ: SLM-4 has longer body length and distinct pad spacing (C1 = 10.86 mm vs. 9.22 mm), making them mechanically incompatible without PCB redesign.
What is the maximum recommended forward current for continuous operation?
The absolute maximum rated forward current is 60 mA, but the recommended continuous operating condition is IF ≤ 50 mA at TA ≤ +70°C. Derating to 30 mA is advised above +70°C ambient to maintain CTR stability and avoid LED degradation, per DS45855 Rev. 5–2 Section 3.
DPC817L-D-TR 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):
- 300% @ 5mA
- Current Transfer Ratio (Max):
- 600% @ 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
DPC817L-D-TR FAQ
1.How can I place an order for DPC817L-D-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for DPC817L-D-TR 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 DPC817L-D-TR reliable?
The price and inventory of DPC817L-D-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DPC817L-D-TR is usually 5 days.
3.What payment methods are accepted for DPC817L-D-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DPC817L-D-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DPC817L-D-TR?
DPC817L-D-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DPC817L-D-TR 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 DPC817L-D-TR?
For technical support, including DPC817L-D-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DPC817L-D-TR requirements.
6.How does Aetrix verify that DPC817L-D-TR is sourced from the original manufacturer or authorized distributors?
All DPC817L-D-TR 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 DPC817L-D-TR meets industry standards.
7.What is the process for return or replacement of DPC817L-D-TR?
All DPC817L-D-TR units undergo pre-shipment inspection (PSI). If there is an issue with DPC817L-D-TR, 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 DPC817L-D-TR part is unused and in its original packaging.
Return procedure for DPC817L-D-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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