HCPL-817-06AE Equivalent & Substitute Parts

Part Overview

The HCPL-817-06AE is a 5000Vrms optoisolator with transistor output manufactured by Broadcom Limited. This single-channel device operates in the 4-DIP package and is designed for applications requiring galvanic isolation in DC input circuits. The part is active and in production with 20,200 units in stock. Substitute parts are necessary to address supply availability, extended temperature range requirements, or alternative current transfer ratio specifications while maintaining functional compatibility within the same package and isolation voltage class.

Key Parameters

Parameter	Value
Isolation Voltage	5000Vrms
Number of Channels	1
Output Type	Transistor
Current Transfer Ratio (Min)	80% @ 5mA
Current Transfer Ratio (Max)	160% @ 5mA
Maximum Output Voltage	70V
Maximum Output Current	50mA
Package	4-DIP (0.300", 7.62mm)
Operating Temperature	-30°C ~ 100°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Primary Compatibility Requirements:

Isolation voltage rating of 5000Vrms or higher
Single-channel transistor output configuration
4-DIP package (0.300", 7.62mm)
Current transfer ratio range that encompasses or exceeds the original specification
Maximum output voltage and current ratings sufficient for the application
DC input type
Through-hole mounting

Grouping Logic:

Parametric Equivalent: HCPL-817-00AE differs only in packaging (Tube vs. unspecified for main part) and maintains identical electrical specifications.

Upgrade Category: LTV-817 provides extended temperature range (-55°C to 110°C) and higher current transfer ratio ceiling (600% max), though maximum output voltage is reduced to 35V.

Manufacturer Recommended Category: ISP817A, ISP817BX, ISP817CX (Isocom) and TCET1103, TCET1106, TCET1107, TCET1108, TCET1109 (Vishay) offer 5300Vrms isolation with varying current transfer ratio grades and extended temperature ranges (-40°C minimum for Vishay devices).

Parameter Comparison

Part Number	Manufacturer	Isolation Voltage	CTR Min @ Test Current	CTR Max @ Test Current	Vce(sat) Max	Output Voltage Max	Operating Temp Range	Inventory
HCPL-817-06AE	Broadcom Limited	5000Vrms	80% @ 5mA	160% @ 5mA	200mV	70V	-30°C ~ 100°C	20,200
HCPL-817-00AE	Broadcom Limited	5000Vrms	80% @ 5mA	160% @ 5mA	200mV	70V	-30°C ~ 100°C	20,300
LTV-817	Lite-On Inc.	5000Vrms	50% @ 5mA	600% @ 5mA	200mV	35V	-55°C ~ 110°C	565,646
ISP817A	Isocom Components 2004 LTD	5300Vrms	80% @ 5mA	160% @ 5mA	200mV	80V	-30°C ~ 100°C	12,790
ISP817BX	Isocom Components 2004 LTD	5300Vrms	130% @ 5mA	260% @ 5mA	200mV	80V	-30°C ~ 100°C	808
ISP817CX	Isocom Components 2004 LTD	5300Vrms	300% @ 5mA	600% @ 5mA	200mV	80V	-30°C ~ 100°C	2,685
TCET1103	Vishay Semiconductor Opto Division	5000Vrms	100% @ 10mA	200% @ 10mA	300mV	70V	-40°C ~ 100°C	1,500
TCET1106	Vishay Semiconductor Opto Division	5000Vrms	100% @ 5mA	300% @ 5mA	300mV	70V	-40°C ~ 100°C	5,656
TCET1107	Vishay Semiconductor Opto Division	5000Vrms	80% @ 5mA	160% @ 5mA	300mV	70V	-40°C ~ 100°C	3,083
TCET1108	Vishay Semiconductor Opto Division	5000Vrms	130% @ 5mA	260% @ 5mA	300mV	70V	-40°C ~ 100°C	45,200
TCET1109	Vishay Semiconductor Opto Division	5000Vrms	200% @ 5mA	400% @ 5mA	300mV	70V	-40°C ~ 100°C	35,300

Engineering Selection Recommendations

Direct Replacement (Identical Specifications): HCPL-817-00AE is a direct parametric equivalent with identical electrical and thermal characteristics. Selection between HCPL-817-06AE and HCPL-817-00AE depends solely on packaging preference and inventory availability.

Broadcom Alternative with Extended Temperature Range: LTV-817 from Lite-On Inc. maintains 5000Vrms isolation and 50mA output current but reduces maximum output voltage to 35V and extends the operating temperature range to -55°C to 110°C. This part is suitable only for applications where the 35V output voltage ceiling is acceptable.

Isocom ISP817 Series (5300Vrms Isolation): ISP817A provides matching current transfer ratio specifications (80-160%) with enhanced isolation voltage (5300Vrms) and higher output voltage rating (80V). ISP817BX and ISP817CX offer higher current transfer ratio grades (130-260% and 300-600% respectively) within the same isolation and voltage specifications. All Isocom parts maintain the -30°C to 100°C operating range.

Vishay TCET11xx Series (5000Vrms Isolation): TCET1107 matches the original current transfer ratio specification (80-160%) with extended temperature range (-40°C to 100°C) and higher saturation voltage (300mV vs. 200mV). TCET1106, TCET1108, and TCET1109 provide progressively higher current transfer ratio grades (100-300%, 130-260%, and 200-400% respectively) with the same extended temperature capability. All Vishay parts are ROHS3 compliant and rated for -40°C minimum operation.

Compliance and Certification: All listed substitute parts maintain ROHS3 compliance, MSL Level 1 (Unlimited), REACH Unaffected status, and EAR99 ECCN classification, matching the original part's regulatory profile.

Frequently Asked Questions (FAQ)

Q: Can TCET1107 replace HCPL-817-06AE in all applications? A: TCET1107 is electrically compatible with matching current transfer ratio (80-160% @ 5mA) and isolation voltage (5000Vrms). The primary difference is higher Vce saturation (300mV vs. 200mV) and extended minimum operating temperature (-40°C vs. -30°C). Applications operating above -30°C with saturation voltage tolerance are fully compatible.

Q: What is the advantage of ISP817A over HCPL-817-06AE? A: ISP817A provides 300Vrms higher isolation voltage (5300Vrms vs. 5000Vrms) and 10V higher maximum output voltage (80V vs. 70V) while maintaining identical current transfer ratio specifications. This offers improved safety margin in high-voltage isolation applications.

Q: Why does LTV-817 have a lower maximum output voltage? A: LTV-817 is designed with different output transistor characteristics that prioritize extended temperature range (-55°C to 110°C) and higher current transfer ratio ceiling (600% max). The 35V output voltage limit reflects this design trade-off and is suitable only for applications within this voltage specification.

Q: Are all substitute parts available in 4-DIP package? A: Yes. All listed substitute parts use the 4-DIP (0.300", 7.62mm) package with identical pinout and through-hole mounting, ensuring direct mechanical compatibility on existing PCBs.

Q: What does Current Transfer Ratio (CTR) represent? A: CTR is the ratio of output collector current to input LED current, expressed as a percentage. Higher CTR indicates greater optical coupling efficiency. The HCPL-817-06AE specifies 80-160% CTR @ 5mA, meaning the output current ranges from 4mA to 8mA for a 5mA input current.

Q: Can I use TCET1109 (200-400% CTR) as a drop-in replacement? A: TCET1109 is mechanically and electrically compatible but operates with significantly higher current transfer ratio. Applications designed for 80-160% CTR may experience different switching characteristics and timing behavior. Circuit redesign or testing is necessary to confirm suitability.

Q: Which substitute offers the best inventory availability? A: LTV-817 has the highest inventory at 565,646 units, followed by TCET1108 at 45,200 units and TCET1109 at 35,300 units. HCPL-817-00AE offers 20,300 units with identical specifications to the original part.

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