TPC817C C9G Equivalent & Substitute Parts

Part Overview

The TPC817C C9G is a 5000Vrms optoisolator with transistor output manufactured by Taiwan Semiconductor Corporation. This component provides galvanic isolation for DC input signals with a single-channel transistor output configuration in a 4-DIP package. The device is classified as obsolete, making identification of equivalent substitute parts essential for ongoing system support and new design implementations. Active alternatives with compatible electrical and mechanical specifications are available to maintain design continuity.

Substiute Parts

TPC817C C9G

Taiwan Semiconductor CorporationIn Stock: 688TPC817C C9G Datasheet

Current PartRFQ

EL817(C)-G

Everlight Electronics Co LtdIn Stock: 1224EL817(C)-G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TPC817C C9G is determined by strict equivalence across the following critical parameters:

Isolation Voltage: 5000Vrms isolation rating is mandatory for functional compatibility.

Channel Configuration: Single-channel transistor output topology must be maintained.

Current Transfer Ratio: Range of 200% to 400% @ 5mA establishes the optical coupling efficiency requirement.

Output Specifications: Maximum output voltage of 80V and output current of 50mA define the load-driving capability.

Saturation Voltage: Vce saturation maximum of 200mV ensures switching performance consistency.

Package Compatibility: 4-DIP through-hole package with 0.300" (7.62mm) spacing is required for PCB layout compatibility.

Regulatory Compliance: ROHS3 compliance and EAR99 classification must be maintained.

The EL817(C)-G from Everlight Electronics Co Ltd meets all these substitution criteria and is classified as an active product, providing long-term availability for replacement and new applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: The EL817(C)-G is the direct functional equivalent for the TPC817C C9G. Both components share identical isolation voltage, channel configuration, current transfer ratio specifications, output voltage and current ratings, and saturation voltage characteristics. Both are ROHS3 compliant and carry EAR99 classification.

Product Status Advantage: The EL817(C)-G is actively manufactured by Everlight Electronics Co Ltd, whereas the TPC817C C9G is obsolete. Selection of the EL817(C)-G ensures continued component availability for production and field replacement applications.

Operating Temperature Consideration: The EL817(C)-G supports an extended operating temperature range of -55°C to 110°C compared to the TPC817C C9G range of -40°C to 100°C. This provides additional thermal margin for applications operating at temperature extremes.

Switching Speed Difference: The EL817(C)-G exhibits slower rise and fall times (6µs and 8µs respectively) compared to the TPC817C C9G (4µs and 3µs). For applications requiring faster switching response, this parameter difference must be evaluated against system timing requirements.

Forward Current Rating: The EL817(C)-G supports a maximum DC forward current of 60mA versus 50mA for the TPC817C C9G, providing additional input drive capability margin.

Regulatory Compliance: Both components maintain equivalent regulatory status with ROHS3 compliance and REACH unaffected classification, supporting use in regulated industries and export-controlled applications.

Frequently Asked Questions (FAQ)

Q: Can the EL817(C)-G directly replace the TPC817C C9G in existing PCB designs?

A: Yes. Both components use identical 4-DIP through-hole packaging with 0.300" (7.62mm) spacing, enabling direct pin-compatible substitution on existing printed circuit boards without layout modification.

Q: Are the electrical specifications identical between these two optoisolators?

A: The core isolation voltage (5000Vrms), current transfer ratio (200-400% @ 5mA), output voltage (80V maximum), output current (50mA), and saturation voltage (200mV maximum) are identical. Minor differences exist in switching speed and operating temperature range, with the EL817(C)-G offering extended specifications.

Q: Why is the EL817(C)-G preferred over the obsolete TPC817C C9G?

A: The EL817(C)-G is actively manufactured, ensuring long-term availability for production quantities and field replacements. The TPC817C C9G is obsolete and subject to inventory depletion.

Q: What is the impact of the slower switching speed of the EL817(C)-G?

A: The EL817(C)-G has rise and fall times of 6µs and 8µs compared to 4µs and 3µs for the TPC817C C9G. Applications with timing-critical switching requirements must verify that the slower response meets system specifications.

Q: Does the wider operating temperature range of the EL817(C)-G affect compatibility?

A: No. The EL817(C)-G operating range of -55°C to 110°C encompasses the TPC817C C9G range of -40°C to 100°C. The extended range provides additional thermal margin without affecting compatibility in applications within the original temperature specification.

Q: Are both components RoHS compliant?

A: Yes. Both the TPC817C C9G and EL817(C)-G are ROHS3 compliant and REACH unaffected, meeting environmental and regulatory requirements for commercial and industrial applications.

Q: What is the moisture sensitivity level for these optoisolators?

A: Both components have a Moisture Sensitivity Level (MSL) of 1, indicating unlimited shelf life without moisture control requirements during storage and handling.

Q: Can the EL817(C)-G be used in applications requiring export compliance?

A: Yes. The EL817(C)-G carries an ECCN classification of EAR99, matching the TPC817C C9G, and is suitable for applications subject to export control regulations.