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Diodes Incorporated DPC817S-B-TR-V
- Part No.:
- DPC817S-B-TR-V
- Manufacturer:
- Diodes Incorporated
- Package:
- 4-SMD, Gull Wing
- Datasheet:
-
DPC817S-B-TR-V.pdf
- Description:
- PHOTO COUPLER SL-4 T&R 2K
- Quantity:
- Payment:
- Shipping:
Inventory:2,336
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Product details
Overview
DPC817S-B-TR-V from Diodes Incorporated is a high-isolation, surface-mount phototransistor coupler in SL-4 package with 130–260% CTR at IF = 5 mA, VCE = 5 V, 5000 VRMS input-output isolation, and -55°C to +110°C operating range-used for feedback control in isolated AC/DC SMPS and I/O level-shifting in industrial PLCs.
For engineers reviewing the DPC817S-B-TR-V datasheet, DPC817S-B-TR-V pinout, DPC817S-B-TR-V application, or DPC817S-B-TR-V equivalent, key selection criteria include CTR rank B (130–260%), SL-4 footprint compatibility, VDE-certified isolation, and guaranteed 35 V VCEO output breakdown voltage under industrial temperature stress.
Technical Context
This optocoupler integrates a GaAs infrared LED emitter and a silicon NPN phototransistor in a single-molded, green compound package. Its current transfer ratio is specified at 5 mA forward current and 5 V collector-emitter voltage, with saturation voltage ≤0.2 V at IC = 1 mA and IF = 20 mA.
The device meets UL1577, CQC GB 4943.1-2022, and VDE EN IEC 60747-5-5 safety standards, enabling reinforced insulation in Class I and II power supplies. It supports 80 kHz bandwidth and exhibits ≤18 µs rise/fall times into 100 Ω load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CTR Rank | B: 130–260% at IF = 5 mA, VCE = 5 V - ensures reliable switching margin across temperature and aging in closed-loop feedback paths |
| VCEO | 35 V - supports output-side operation up to 24 V DC rails with safety margin in industrial control interfaces |
| VISO | 5000 VRMS - enables reinforced insulation per IEC 62368-1 and IEC 60950-1 in AC/DC adapters and motor drives |
| Operating Temp | -55°C to +110°C - qualified for under-hood automotive auxiliary systems and outdoor telecom power modules |
| Package | SL-4 (Surface-mount, 4-pin, 2.54 mm pitch) - compatible with automated SMT assembly and IPC-7351B land patterns |
| Isolation Resistance | ≥5 × 10¹⁰ Ω at 500 VDC - maintains signal integrity in high-impedance sensing circuits over lifetime |
| fC | 80 kHz (-3 dB) - sufficient for PWM frequencies up to 40 kHz in flyback controller feedback loops |
Pinout & Package
SL-4 package: 4-pin surface-mount, 2.54 mm lead pitch, 10.16 mm body width (E), 4.60 mm body length (D), 3.50 mm height (A2), matte tin-plated leads, RoHS-compliant "Green" mold compound (UL 94V-0).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | LED anode input - requires series resistor to limit IF to ≤60 mA; polarity marked by dot on package |
| 2 | Cathode | LED cathode return - connects to ground or low-side switch in input-side circuit |
| 3 | Emitter | Phototransistor emitter output - typically tied to ground or pulled up via external resistor on output side |
| 4 | Collector | Phototransistor collector output - provides active-low switched output referenced to isolated supply rail |
Key Features
| Feature | Design Value |
|---|---|
| VDE-certified isolation | EN IEC 60747-5-5 compliance enables use in medical and industrial equipment requiring certified reinforced insulation |
| CTR stability over temperature | Relative CTR remains ≥85% from -40°C to +85°C - reduces gain drift in precision voltage feedback networks |
| Low VCE(SAT) | ≤0.2 V at IC = 1 mA - minimizes power loss and improves noise immunity in logic-level interfacing |
| Lead-free & halogen-free | <900 ppm Br, <900 ppm Cl, <1000 ppm Sb - satisfies strict environmental requirements for EU, China, and Japan markets |
| Moisture sensitivity | Level 1 per J-STD-020 - allows unlimited floor life before reflow, eliminating bake requirements in production |
Applications
| AC/DC SMPS Feedback | Industrial PLC I/O Isolation |
|---|---|
|
Use Scenario: Primary-side controller (e.g., UC384x) receives isolated voltage feedback from secondary-side TL431 shunt regulator via optocoupler. IC Role / Device Role / Timing Role: Signal-level analog-to-digital interface translating error voltage into duty-cycle-modulated pulses across isolation barrier. Use Value: Maintains ±1% output regulation under line/load transients while meeting 5000 VRMS creepage/clearance requirements. |
Use Scenario: Digital input module detects 24 V DC field sensor signals while protecting backplane logic from ground loops and surges. IC Role / Device Role / Timing Role: Level-shifting isolator converting field-side TTL/24 V logic to 3.3 V/5 V microcontroller inputs with galvanic separation. Use Value: Enables >10 kV ESD immunity and eliminates common-mode noise coupling in factory-floor automation systems. |
| Motor Drive Enable Control | Medical Power Supply Monitoring |
|
Use Scenario: Isolated gate driver enable/disable signal routed from MCU to half-bridge driver IC in variable-frequency HVAC inverter. IC Role / Device Role / Timing Role: Safety-critical interlock path ensuring power stage remains disabled during fault conditions or startup sequencing. Use Value: Guarantees fail-safe shutdown with <18 µs response time and withstands repeated 100 V surge transients on motor-side traces. |
Use Scenario: Patient-connected diagnostic equipment uses isolated DC/DC converter with secondary-side overvoltage detection feeding alarm signal to main controller. IC Role / Device Role / Timing Role: Reinforced insulation barrier for fault signaling between patient-isolated and operator-accessible domains per IEC 60601-1. Use Value: Certified VDE EN IEC 60747-5-5 compliance ensures dual protection means (2MOPP) without additional external components. |
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 100–200%, VDE-certified, same SL-4 package but higher typical CTR spread (±25%) and no VDE marking on tape | Acceptable for non-safety-critical feedback where tighter CTR binning not required | Select if cost-sensitive and VDE documentation traceability is not mandated by end-equipment certification |
| PC817X2NSZ0F | CTR 130–260%, same SL-4, but only UL/CQC certified (no VDE EN IEC 60747-5-5) | Suitable for North American or Chinese market products lacking EU medical/industrial VDE requirements | Choose when regional safety approvals suffice and VDE-specific test reports are unnecessary |
Compared with TLP185(GB-TP,F), DPC817S-B-TR-V offers tighter CTR consistency and full VDE documentation traceability; versus PC817X2NSZ0F, it adds VDE EN IEC 60747-5-5 compliance critical for CE-marked medical and industrial equipment in Europe.
Availability
DPC817S-B-TR-V is available at Aetrix Electronics and suitable for AC/DC power supplies, industrial programmable logic controllers, motor drive interlocks, and medical isolated DC/DC converters requiring stable component supply with full VDE certification and extended temperature support.
Supply support for DPC817S-B-TR-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 integrated circuits, specializing in high-reliability, industry-qualified components for power management, signal integrity, and protection.
The DPC817 Series targets safety-critical isolation applications in power conversion and industrial control, delivering VDE/UL-certified performance in compact surface-mount packages optimized for automated manufacturing.
FAQ
What is the minimum forward current required to reliably saturate the output transistor?
The phototransistor achieves VCE(SAT) ≤ 0.2 V at IF = 20 mA and IC = 1 mA. For reliable saturation across temperature and CTR variation, design for IF ≥ 8 mA (minimum) with derating to 5 mA only under nominal 25°C conditions and highest CTR bin (B: 130–260%).
Does DPC817S-B-TR-V support bidirectional signal transmission?
No. It is a unidirectional optocoupler with an LED input stage and NPN phototransistor output stage. Signal flow is strictly input (pins 1–2) to output (pins 3–4); reverse biasing the phototransistor or applying voltage to pins 3–4 does not enable reverse conduction.
Can this part replace through-hole DIP-4 variants like DPC817D-B-TU-V in existing designs?
Electrically identical, but SL-4 footprint differs mechanically from DIP-4: SL-4 has 2.54 mm pitch and surface-mount pads; DIP-4 uses 0.1" pitch and through-hole leads. PCB redesign is required-no drop-in replacement. Thermal and isolation performance remain equivalent.
What is the maximum recommended soldering temperature profile for SL-4 reflow?
Peak reflow temperature must not exceed +260°C for ≤10 seconds, per JEDEC J-STD-020. The device is MSL Level 1, so no pre-bake is needed. Use standard Pb-free reflow profile with ramp rate ≤3°C/s, soak at 150–200°C for 60–120 s, and peak at 245–260°C for ≤10 s.
DPC817S-B-TR-V 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):
- 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:
- Surface Mount
- Supplier Device Package:
- 4-SMD
DPC817S-B-TR-V FAQ
1.How can I place an order for DPC817S-B-TR-V through Aetrix?
Please submit a Request for Quotation (RFQ) for DPC817S-B-TR-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 DPC817S-B-TR-V reliable?
The price and inventory of DPC817S-B-TR-V are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DPC817S-B-TR-V is usually 5 days.
3.What payment methods are accepted for DPC817S-B-TR-V?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DPC817S-B-TR-V transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DPC817S-B-TR-V?
DPC817S-B-TR-V orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DPC817S-B-TR-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 DPC817S-B-TR-V?
For technical support, including DPC817S-B-TR-V datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DPC817S-B-TR-V requirements.
6.How does Aetrix verify that DPC817S-B-TR-V is sourced from the original manufacturer or authorized distributors?
All DPC817S-B-TR-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 DPC817S-B-TR-V meets industry standards.
7.What is the process for return or replacement of DPC817S-B-TR-V?
All DPC817S-B-TR-V units undergo pre-shipment inspection (PSI). If there is an issue with DPC817S-B-TR-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 DPC817S-B-TR-V part is unused and in its original packaging.
Return procedure for DPC817S-B-TR-V:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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