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HCPL0531
onsemi
OPTOCOUPLR TRANS 2CHAN HS 8SOIC
3564 Pcs New Original In Stock
Optoisolator Transistor Output 2500Vrms 2 Channel 8-SOIC
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5.0 / 5.0
- (502 Ratings)
HCPL0531
Product Overview
7830008
DiGi Electronics Part Number
HCPL0531-DGManufacturer
onsemi
HCPL0531
Description
OPTOCOUPLR TRANS 2CHAN HS 8SOICInventory
3564 Pcs New Original In Stock
Optoisolator Transistor Output 2500Vrms 2 Channel 8-SOIC
Quantity
Minimum 1
Minimum 1
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HCPL0531 Technical Specifications
Category
Optoisolators, Transistor, Photovoltaic Output Optoisolators
Packaging
Tube
Series
-
Product Status
Active
Number of Channels
2
Voltage - Isolation
2500Vrms
Current Transfer Ratio (Min)
19% @ 16mA
Current Transfer Ratio (Max)
50% @ 16mA
Turn On / Turn Off Time (Typ)
450ns, 300ns
Rise / Fall Time (Typ)
-
Input Type
DC
Output Type
Transistor
Voltage - Output (Max)
20V
Current - Output / Channel
8mA
Voltage - Forward (Vf) (Typ)
1.45V
Current - DC Forward (If) (Max)
25 mA
Vce Saturation (Max)
-
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (0.154", 3.90mm Width)
Supplier Device Package
8-SOIC
Base Product Number
HCPL05
Datasheet & Documents
HTML Datasheet
HCPL0531-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8541.49.8000
Additional Information
Other Names
HCPL0531FS-DG
HCPL0531FS
2166-HCPL0531-488
HCPL0531_NL
HCPL0531_NL-DG
HCPL0531-NDR
Standard Package
50
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
Le service client de DiGi Electronics est remarquable, toujours à l’écoute et très professionnel.
de desembre 02, 2025
I am always impressed by the thoroughness and clarity of their customer support.
de desembre 02, 2025
The clarity in their pricing policies gives me confidence and trust in their business.
de desembre 02, 2025
DiGi Electronics combines affordability with sustainability, which appeals to me.
de desembre 02, 2025
The availability of products at DiGi Electronics is impressive, which allows us to meet our project timelines effectively.
de desembre 02, 2025
Their commitment to quality assurance is truly commendable.
de desembre 02, 2025
Their technical support team stays updated with the latest industry standards, providing us with cutting-edge solutions.
de desembre 02, 2025
They always ship my orders on time, which I truly appreciate.
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Frequently Asked Questions (FAQ)
What real-world isolation spacing constraints should I watch when dropping HCPL0531 into a 4 kV reinforced-design PLC I/O card that must pass IEC 61010-1?
HCPL0531 gives you only 2.5 kVrms rated isolation, so you still need an extra 1.5 mm external creepage on the PCB to hit 4 kV reinforced. Route its pins 2-3 and 6-7 as a isolated island, remove inner-layer copper under the body, add a 0.4 mm air slit in the solder-mask between the 8-SOIC pads, and do a 0 s safety test at 6 kVrms; if the customer needs over-voltage category III, stack a second isolator or pick a 5 kV part such as the Broadcom ACPL-072L instead of gambling with HCPL0531.
I need 40 mA logic-side drive but HCPL0531 only guarantees 8 mA per channel—what simple external stage gives me that without trashing the 450 ns typical turn-on?
Buffer each HCPL0531 channel with a low-input-capacitance BSS84 P-fet: tie gate to the open-collector, source to 5 V, drain to your 40 mA load. You’ll add ~12 ns of delay and 2 pF Miller to the HCPL0531 node, well under the opto’s 10% tolerance; keep R-pull-up ≥ 1 kΩ so the photo-transistor still saturates and the CTR 19%-50% window is respected. This keeps total HCPL0531+Iq under 35 mA, saving MCU GPIO headroom.
Can HCPL0531 replace the Vishay SFH615A-2 in an existing 5 V, 25 kbit/s isolated RS-485 node that runs hot at 105°C ambient, or will CTR collapse?
No swap without derating: HCPL0531 CTR bottoms at 19% versus 50% for the SFH615A-2, and at 105°C it falls another 35%. You’ll need a 22 mA LED (I_F ≤ 25 mA max is okay) and halve the load resistor from 4.7 kΩ to 2.2 kΩ to keep V_OL under 0.4 V. Better long-term reliability choice is to keep the Vishay or redesign with HCPL0630 (higher CTR) plus local temperature modulated bias.
My GaN half-bridge gate driver floats at -5 V during dead-time—will HCPL0531’s 20 V output max survive, or must I clamp it?
HCPL0531 absolute max on the open-collector is 20 V irrespective of LED state, so the -5 V undershoot itself will not violate the part; however, the 25 pF diode-isolation capacitance couples ~3 V transients back to the LED side. Add a Schottky BAT54 fly-back clamp (cathode to collector, anode to emitter) within 5 mm of HCPL0531 pins to keep the negative excursion under 0.3 V and lower EMI.
How do I estimate HCPL0531 end-of-life CTR droop at 12 mA LED for a solar-inverter that must last 20 years at 70°C board temp?
Use the MIL-HDBK-217 LED ageing model: current-induced decay halves every 5× junction temperature rise. At 70°C, 12 mA gives ≈ 0.2 eV activation, projecting ~0.4%/k-h CTR loss; 20 years (175 kh) means 70% CTR left, still above the 19% datasheet floor. Add 10% safety margin, design today with 30% preload (e.g. 1 mA through 2.4 kΩ), and schedule MCU re-calibration at year 10 rather than field-replacing HCPL0531.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
HCPL0531 CAD Models
onsemi HCPL0531 PCB symbols & footprints
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