OCP-PCT4216/A-TR Equivalent & Substitute Parts

Part Overview

The OCP-PCT4216/A-TR is a 4-channel optoisolator with transistor output manufactured by Lumex Opto/Components Inc. This surface mount component provides 5000Vrms isolation voltage and is designed for AC/DC input applications requiring galvanic isolation. The part is currently in active production status with 922 units in stock.

Substitute parts are necessary when surface mount packaging is unavailable, when through-hole mounting is required for specific PCB designs, or when alternative manufacturers' components meet or exceed the electrical specifications of the original part while maintaining functional compatibility.

Key Parameters

Parameter	OCP-PCT4216/A-TR
Number of Channels	4
Voltage - Isolation	5000Vrms
Current Transfer Ratio (Min)	60% @ 1mA
Current Transfer Ratio (Max)	600% @ 1mA
Rise / Fall Time (Typ)	5µs, 4µs
Input Type	AC, DC
Output Type	Transistor
Voltage - Output (Max)	60V
Current - Output / Channel	50mA
Vce Saturation (Max)	300mV
Operating Temperature	-30°C ~ 100°C
Mounting Type	Surface Mount
Package / Case	16-SMD, Gull Wing
RoHS Status	ROHS3 Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitution of the OCP-PCT4216/A-TR is determined by the following critical parameters:

Mandatory Compatibility Criteria:

Number of Channels: 4 channels required
Output Type: Transistor output required
Input Type: AC/DC input capability required
Isolation Voltage: Minimum 5000Vrms (equal or greater)
Current - Output / Channel: Minimum 50mA per channel
Voltage - Output (Max): Minimum 60V (equal or greater)
Operating Temperature Range: Must encompass -30°C to 100°C or be compatible with application requirements
RoHS3 Compliance: Required for regulatory compliance

Functional Equivalence Parameters:

Current Transfer Ratio range must support the application's input current and output requirements
Vce Saturation characteristics must be compatible with output circuit design
Rise/Fall time specifications must meet switching speed requirements

All substitute parts listed maintain 4-channel transistor output configuration with isolation voltage equal to or exceeding 5000Vrms. Substitutes are available in through-hole 16-DIP packaging as alternatives to the surface mount 16-SMD configuration of the main part.

Parameter Comparison

Parameter	OCP-PCT4216/A-TR (Lumex)	ILQ620 (Vishay)	ILQ620GB (Vishay)	LTV-844 (Lite-On)	PS2505-4-A (Renesas)	TLP620-4X (Isocom)	TLP620-4XG (Isocom)
Number of Channels	4	4	4	4	4	4	4
Voltage - Isolation	5000Vrms	5300Vrms	5300Vrms	5000Vrms	5000Vrms	5300Vrms	5300Vrms
Current Transfer Ratio (Min)	60% @ 1mA	50% @ 5mA	100% @ 5mA	20% @ 1mA	80% @ 5mA	50% @ 5mA	50% @ 5mA
Current Transfer Ratio (Max)	600% @ 1mA	600% @ 5mA	600% @ 5mA	300% @ 1mA	600% @ 5mA	600% @ 5mA	600% @ 5mA
Rise / Fall Time (Typ)	5µs, 4µs	20µs, 2µs	20µs, 2µs	4µs, 3µs	3µs, 5µs	4µs, 3µs	4µs, 3µs
Input Type	AC, DC	AC, DC	AC, DC	AC, DC	AC, DC	AC, DC	AC, DC
Output Type	Transistor	Transistor	Transistor	Transistor	Transistor	Transistor	Transistor
Voltage - Output (Max)	60V	70V	70V	35V	80V	55V	55V
Current - Output / Channel	50mA	50mA	50mA	50mA	50mA	50mA	50mA
Vce Saturation (Max)	300mV	400mV	400mV	200mV	300mV	400mV	400mV
Operating Temperature	-30°C ~ 100°C	-55°C ~ 100°C	-55°C ~ 100°C	-30°C ~ 100°C	-55°C ~ 100°C	-30°C ~ 100°C	-30°C ~ 100°C
Mounting Type	Surface Mount	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	16-SMD, Gull Wing	16-DIP (0.300", 7.62mm)	16-DIP (0.300", 7.62mm)	16-DIP (0.300", 7.62mm)	16-DIP (0.300", 7.62mm)	16-DIP (0.300", 7.62mm)	16-DIP (0.400", 10.16mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Not For New Designs	Active	Active

Engineering Selection Recommendations

Primary Substitutes (Active Product Status):

ILQ620GB (Vishay Semiconductor Opto Division) is the preferred substitute when through-hole mounting is acceptable. This part exceeds isolation voltage specification (5300Vrms vs. 5000Vrms), maintains identical channel count and output current rating, and features higher minimum current transfer ratio (100% @ 5mA). Product status is Active with full production support.

TLP620-4X and TLP620-4XG (Isocom Components 2004 LTD) provide equivalent isolation voltage (5300Vrms) and maintain all critical output specifications. Both are Active products suitable for new designs. TLP620-4X uses standard 16-DIP (0.300") spacing; TLP620-4XG uses wider 16-DIP (0.400") spacing for applications requiring increased board spacing.

LTV-844 (Lite-On Inc.) maintains identical isolation voltage (5000Vrms) and operating temperature range (-30°C ~ 100°C) as the main part. This Active product is suitable when Lite-On component qualification is required. Note: Maximum output voltage is 35V, which is lower than the main part specification of 60V.

Secondary Substitute (Legacy Status):

PS2505-4-A (Renesas Electronics Corporation) meets electrical specifications but carries "Not For New Designs" product status. This part is suitable only for replacement in existing systems or when Renesas component qualification is mandatory. REACH Status is "REACH Affected," requiring compliance verification for specific applications.

Compliance Considerations:

All recommended substitutes maintain ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited). All parts are classified under ECCN EAR99 and HTSUS 8541.49.8000. Verify REACH compliance requirements for PS2505-4-A in regulated applications.

Frequently Asked Questions (FAQ)

Q: Can I substitute the OCP-PCT4216/A-TR surface mount part with a through-hole 16-DIP optoisolator?

A: Yes, provided the through-hole part meets the mandatory electrical specifications: 4 channels, transistor output, minimum 5000Vrms isolation, 50mA per channel output current, and 60V maximum output voltage. PCB layout redesign is required to accommodate the different mounting footprint. ILQ620GB, TLP620-4X, TLP620-4XG, and LTV-844 all meet these criteria.

Q: What is the difference between ILQ620 and ILQ620GB?

A: Both are Vishay 4-channel optoisolators with 5300Vrms isolation in 16-DIP packaging. The primary difference is the minimum current transfer ratio: ILQ620 specifies 50% @ 5mA, while ILQ620GB specifies 100% @ 5mA. ILQ620GB provides higher guaranteed current transfer ratio performance.

Q: Why does LTV-844 show a lower maximum output voltage (35V) compared to the OCP-PCT4216/A-TR (60V)?

A: LTV-844 is rated for maximum 35V output voltage, which is a design characteristic of that component. If your application requires 60V output capability, LTV-844 is not suitable. Use ILQ620GB, PS2505-4-A, or TLP620 series instead, which all support 55V or higher output voltage.

Q: Is PS2505-4-A suitable for new product designs?

A: No. PS2505-4-A carries "Not For New Designs" product status from Renesas Electronics Corporation. This part is appropriate only for replacement in existing systems or legacy product support. For new designs, select from Active status parts: ILQ620GB, TLP620-4X, TLP620-4XG, or LTV-844.

Q: What is the difference between TLP620-4X and TLP620-4XG?

A: Both parts are electrically identical 4-channel optoisolators with 5300Vrms isolation and transistor output. The difference is package spacing: TLP620-4X uses standard 16-DIP (0.300", 7.62mm) spacing, while TLP620-4XG uses wider 16-DIP (0.400", 10.16mm) spacing. Select based on PCB layout requirements and available board space.

Q: Can I use these substitutes in applications requiring -55°C minimum operating temperature?

A: The OCP-PCT4216/A-TR is rated -30°C to 100°C. If your application requires -55°C minimum temperature, select ILQ620, ILQ620GB, or PS2505-4-A, which are all rated -55°C to 100°C. LTV-844, TLP620-4X, and TLP620-4XG are rated only -30°C to 100°C and are not suitable for lower temperature operation.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts (ILQ620, ILQ620GB, LTV-844, PS2505-4-A, TLP620-4X, TLP620-4XG) are ROHS3 Compliant. The OCP-PCT4216/A-TR is also ROHS3 Compliant. Verify specific REACH compliance requirements for your application, particularly for PS2505-4-A which has "REACH Affected" status.

Q: What are the key parameters I must verify before substituting?

A: Verify these parameters match or exceed your application requirements: (1) Number of Channels = 4, (2) Isolation Voltage ≥ 5000Vrms, (3) Output Type = Transistor, (4) Current per Channel ≥ 50mA, (5) Maximum Output Voltage ≥ 60V (unless your circuit requires less), (6) Operating Temperature Range encompasses your application range, (7) Mounting Type is compatible with your PCB design (surface mount vs. through-hole).

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