PS8601-A Optoisolator Transistor with Base Output — Equivalent & Substitute Parts

Part Overview

The PS8601-A is a 5000Vrms optoisolator with transistor and base output in 8-DIP packaging, manufactured by CEL. This part carries an obsolete product status due to discontinuation. For applications requiring equivalent functionality, substitute components from active manufacturers provide enhanced availability and ongoing technical support while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	PS8601-A
Manufacturer	CEL
Category	Optoisolators
Number of Channels	1
Voltage - Isolation	5000Vrms
Current Transfer Ratio (Min)	15% @ 16mA
Output Type	Transistor with Base
Voltage - Output (Max)	35V
Current - Output / Channel	8mA
Voltage - Forward (Vf) (Typ)	1.7V
Current - DC Forward (If) (Max)	25mA
Operating Temperature	-55°C ~ 100°C
Package / Case	8-DIP (0.300", 7.62mm)
Mounting Type	Through Hole
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution compatibility is determined by the following critical parameters:

Voltage - Isolation: 5000Vrms minimum requirement
Output Type: Transistor with Base configuration
Package / Case: 8-DIP (0.300", 7.62mm) form factor
Number of Channels: 1 channel
Current - Output / Channel: 8mA minimum
Operating Temperature: -55°C ~ 100°C coverage

Substitute parts are categorized into two groups:

Direct Equivalents (5000Vrms Isolation): Parts meeting all isolation voltage and thermal specifications with identical or superior electrical characteristics. These include 6N136-020E, HCPL-4562-020E, PS8501-AX, PS8501-V-AX, and PS8502-V-AX.

Compatible Alternatives (3750Vrms Isolation): Parts with reduced isolation voltage (HCPL-4562, HCPL-4562-000E, HCPL-4562-060E) suitable for applications where 3750Vrms isolation is acceptable, with restricted temperature range (-40°C ~ 85°C).

Lower Isolation Variant (HCPL-2502-020E): Provides 5000Vrms isolation with matching electrical specifications but features reduced maximum output voltage (20V vs 35V) and lower forward current limits.

Parameter Comparison

Parameter	PS8601-A	6N136-020E	HCPL-2502-020E	HCPL-4562-020E	PS8501-AX	PS8501-V-AX	PS8502-V-AX
Manufacturer	CEL	Broadcom Limited	Broadcom Limited	Broadcom Limited	Renesas Electronics	Renesas Electronics	Renesas Electronics
Voltage - Isolation	5000Vrms	5000Vrms	5000Vrms	5000Vrms	5000Vrms	5000Vrms	5000Vrms
Current Transfer Ratio (Min)	15% @ 16mA	19% @ 16mA	15% @ 16mA	—	15% @ 16mA	15% @ 16mA	15% @ 16mA
Turn On / Turn Off Time (Typ)	500ns, 300ns	200ns, 600ns	200ns, 600ns	—	220ns, 350ns	—	—
Output Type	Transistor with Base	Transistor with Base	Transistor with Base	Transistor with Base	Transistor with Base	Transistor with Base	Transistor with Base
Voltage - Output (Max)	35V	20V	20V	20V	35V	35V	35V
Current - Output / Channel	8mA	8mA	8mA	8mA	8mA	8mA	8mA
Voltage - Forward (Vf) (Typ)	1.7V	1.5V	1.5V	1.3V	1.7V	1.7V	1.7V
Current - DC Forward (If) (Max)	25mA	25mA	25mA	12mA	25mA	25mA	25mA
Operating Temperature	-55°C ~ 100°C	-55°C ~ 100°C	-55°C ~ 100°C	-40°C ~ 85°C	-55°C ~ 100°C	-55°C ~ 100°C	-55°C ~ 100°C
Package / Case	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)
Product Status	Obsolete	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

For Full Specification Compliance (5000Vrms, 35V Output, -55°C ~ 100°C): PS8501-AX and PS8502-V-AX from Renesas Electronics Corporation offer direct parametric equivalence with active product status and ROHS3 compliance. PS8501-V-AX provides identical electrical characteristics with ROHS3 compliance and unrestricted REACH status. All three Renesas parts maintain the NEPOC series classification and support extended temperature operation.

For 5000Vrms Isolation with Active Status: 6N136-020E (Broadcom Limited) provides 5000Vrms isolation with enhanced current transfer ratio (19% minimum) and improved switching timing. This component is ROHS3 compliant with extended temperature range. HCPL-2502-020E (Broadcom Limited) maintains 5000Vrms isolation and full current ratings but features reduced output voltage rating (20V maximum).

For Cost-Optimized Applications with Reduced Isolation Requirements: HCPL-4562-020E, HCPL-4562-000E, and HCPL-4562-060E provide active alternatives with 3750Vrms isolation, ROHS3 compliance, and reduced operating temperature range (-40°C ~ 85°C). Forward current limits are reduced to 12mA maximum. These parts are suitable only for applications where isolation voltage specifications are satisfied at 3750Vrms and operating temperature remains within -40°C ~ 85°C bounds.

Frequently Asked Questions (FAQ)

Q: Can HCPL-4562 series components directly replace PS8601-A in all applications?

A: HCPL-4562 series parts feature 3750Vrms isolation voltage versus the PS8601-A specification of 5000Vrms. Direct replacement is permissible only in applications where 3750Vrms isolation satisfies design requirements. Additionally, HCPL-4562 series operates within -40°C ~ 85°C, excluding the PS8601-A's extended lower temperature range.

Q: What are the key differences between Renesas (PS8501/PS8502) and Broadcom (6N136-020E) alternatives?

A: Both meet 5000Vrms isolation and 8-DIP packaging requirements. The 6N136-020E demonstrates superior current transfer ratio (19% minimum versus 15%). Renesas parts maintain the original 35V maximum output voltage, while 6N136-020E is limited to 20V. All are ROHS3 compliant with active product status.

Q: Is the PS8601-A pin-to-pin compatible with suggested substitutes?

A: All substitute parts utilize identical 8-DIP (0.300", 7.62mm) Through Hole packaging. Electrical pin assignments for optoisolator transistor with base output are standardized across this component category, confirming pin-to-pin compatibility within the 8-DIP form factor.

Q: Which substitute provides the closest electrical match to PS8601-A specifications?

A: PS8501-AX and PS8502-V-AX provide parametric equivalence across isolation voltage (5000Vrms), output voltage (35V), operating temperature (-55°C ~ 100°C), and current transfer ratio (15% minimum @ 16mA). PS8501-V-AX maintains identical electrical specifications with unrestricted REACH compliance.

Q: What compliance considerations exist for substitute part selection?

A: All recommended substitutes carry ROHS3 compliance. REACH status varies: PS8501-V-AX and PS8502-V-AX are REACH Unaffected; PS8501-AX is REACH Affected; Broadcom parts (6N136-020E, HCPL-2502-020E, HCPL-4562 series) are REACH Unaffected. The original PS8601-A carries REACH Affected status.

Q: Are inventory levels adequate for production planning with substitute parts?

A: Current inventory across substitute options ranges from 897 to 2300 pieces in new original condition. PS8502-V-AX maintains highest available stock (2001 pcs), followed by HCPL-4562 series variants and 6N136-020E (950–2300 pcs range). Procurement decisions should account for current stock levels and product lifecycle status.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message