TPC816A C9G Equivalent & Substitute Parts

Part Overview

The TPC816A C9G is a 5000Vrms optoisolator with transistor output manufactured by Taiwan Semiconductor Corporation in a 4-DIP through-hole package. This component provides galvanic isolation for single-channel DC input applications with a maximum output current of 50mA per channel. The product is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement.

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 Current	50mA
Maximum Output Voltage	70V
Rise / Fall Time	4µs, 3µs
Vce Saturation (Max)	200mV
Operating Temperature Range	-30°C ~ 100°C
Package Type	4-DIP Through Hole
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the TPC816A C9G is determined by matching the following critical parameters across all candidate parts:

Mandatory Matching Parameters:

Isolation voltage: 5000Vrms
Number of channels: 1
Output type: Transistor
Current transfer ratio range: 80% to 160% @ 5mA
Maximum output current: 50mA per channel
Maximum output voltage: 70V
Rise/fall time: 4µs, 3µs
Vce saturation: 200mV maximum
Input type: DC
Forward voltage (Vf): 1.2V typical
Maximum DC forward current: 50mA
Mounting type: Through hole
Package case: 4-DIP
RoHS3 compliance
REACH unaffected status

All three substitute parts listed below meet these mandatory electrical and mechanical parameters, enabling direct functional replacement in applications designed for the TPC816A C9G.

Parameter Comparison

Parameter	TPC816A C9G	FOD817A	HCPL-817-W0AE	HCPL-817-W6AE
Manufacturer	Taiwan Semiconductor Corporation	onsemi	Broadcom Limited	Broadcom Limited
Product Status	Obsolete	Active	Active	Active
Isolation Voltage	5000Vrms	5000Vrms	5000Vrms	5000Vrms
Number of Channels	1	1	1	1
Output Type	Transistor	Transistor	Transistor	Transistor
Current Transfer Ratio (Min)	80% @ 5mA	80% @ 5mA	80% @ 5mA	80% @ 5mA
Current Transfer Ratio (Max)	160% @ 5mA	160% @ 5mA	160% @ 5mA	160% @ 5mA
Maximum Output Current	50mA	50mA	50mA	50mA
Maximum Output Voltage	70V	70V	70V	70V
Rise / Fall Time	4µs, 3µs	4µs, 3µs	4µs, 3µs	4µs, 3µs
Vce Saturation (Max)	200mV	200mV	200mV	200mV
Voltage - Forward (Vf) (Typ)	1.2V	1.2V	1.2V	1.2V
Current - DC Forward (If) (Max)	50mA	50mA	50mA	50mA
Input Type	DC	DC	DC	DC
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	4-DIP (0.400", 10.16mm)	4-DIP (0.300", 7.62mm)	4-DIP (0.400", 10.16mm)	4-DIP (0.400", 10.16mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	Not Applicable	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected
Operating Temperature Range	-30°C ~ 100°C	-55°C ~ 110°C	-30°C ~ 100°C	-30°C ~ 100°C

Engineering Selection Recommendations

FOD817A (onsemi): This substitute provides full electrical equivalence with all mandatory parameters matched to the TPC816A C9G. The FOD817A is classified as active product status, ensuring long-term availability and supply chain continuity. The component carries ROHS3 compliance and REACH unaffected status. The operating temperature range extends to -55°C to 110°C, providing broader environmental coverage than the original part. Physical package dimensions differ slightly (0.300" versus 0.400" DIP width), which may require PCB layout verification for existing designs. Current inventory availability is 20,300 units.

HCPL-817-W0AE (Broadcom Limited): This substitute delivers complete parametric equivalence with the TPC816A C9G across all electrical specifications. The HCPL-817-W0AE maintains active product status with established manufacturing continuity. RoHS3 compliance and REACH unaffected status are confirmed. Operating temperature range matches the original part at -30°C to 100°C. Physical package dimensions are identical to the TPC816A C9G (0.400", 10.16mm DIP width), enabling direct PCB compatibility without layout modifications. Moisture sensitivity level is 1 (Unlimited), matching the original specification. Current inventory availability is 29,400 units.

HCPL-817-W6AE (Broadcom Limited): This substitute provides full electrical and mechanical equivalence to the TPC816A C9G. The HCPL-817-W6AE is classified as active product status with established supply chain support. RoHS3 compliance and REACH unaffected status are confirmed. Operating temperature range is -30°C to 100°C, matching the original part. Physical package dimensions are identical (0.400", 10.16mm DIP width), ensuring direct PCB compatibility. Moisture sensitivity level is 1 (Unlimited). Current inventory availability is 665 units.

Frequently Asked Questions (FAQ)

Q: Can the FOD817A be used as a direct replacement for the TPC816A C9G on existing PCBs?

A: The FOD817A meets all electrical specifications for functional equivalence. However, the package width differs (0.300" versus 0.400" DIP). PCB hole spacing and component footprint must be verified before substitution to ensure mechanical fit.

Q: What is the primary advantage of selecting HCPL-817-W0AE or HCPL-817-W6AE over FOD817A?

A: Both HCPL-817 variants maintain identical package dimensions (0.400", 10.16mm DIP width) to the TPC816A C9G, enabling direct PCB compatibility without layout modifications. The FOD817A requires physical verification due to its narrower package width.

Q: Are all three substitute parts RoHS3 compliant?

A: Yes. FOD817A, HCPL-817-W0AE, and HCPL-817-W6AE are all ROHS3 compliant and REACH unaffected, matching the environmental compliance status of the TPC816A C9G.

Q: Does the extended operating temperature range of FOD817A (-55°C to 110°C) affect its use in applications designed for TPC816A C9G (-30°C to 100°C)?

A: The FOD817A's extended temperature range is a superset of the original specification. Applications operating within the -30°C to 100°C range will function identically. The extended range provides additional margin for applications with broader environmental requirements.

Q: What is the difference between HCPL-817-W0AE and HCPL-817-W6AE?

A: Both parts are electrically and mechanically identical. They share the same base product number (HCPL-817) and meet all equivalent parameters. Selection between them is determined by inventory availability and procurement lead times.

Q: Are moisture sensitivity levels a factor in selecting a substitute?

A: The TPC816A C9G, HCPL-817-W0AE, and HCPL-817-W6AE all specify MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. The FOD817A specifies MSL as Not Applicable. Both conditions are compatible with standard handling and storage procedures.

Q: Can these substitutes be used interchangeably in new designs?

A: All three substitutes meet the mandatory electrical and mechanical parameters for the TPC816A C9G. Selection should prioritize active product status (all three qualify), long-term availability, and package compatibility with PCB design requirements.

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