PS8602L-A Optoisolator Equivalent & Substitute Parts

Part Overview

The PS8602L-A is a single-channel optoisolator with transistor output manufactured by CEL, rated for 5000Vrms isolation voltage. This component belongs to the NEPOC series and is classified as obsolete. The PS8602L-A features an 8-SMD Gull Wing package configuration suitable for surface mount applications across industrial and consumer electronics requiring galvanic isolation.

Due to its obsolete product status, direct replacement with active production alternatives is necessary for new designs and ongoing procurement. Substitute parts must maintain functional equivalence in isolation voltage, channel count, output type, and thermal operating range while accommodating packaging and compliance variations.

Key Parameters

Parameter	PS8602L-A Value
Manufacturer	CEL
Category	Optoisolators
Product Status	Obsolete
Number of Channels	1
Voltage - Isolation	5000Vrms
Current Transfer Ratio (Min)	15% @ 16mA
Turn On Time (Typ)	500ns
Turn Off Time (Typ)	300ns
Input Type	DC
Output Type	Transistor
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
Mounting Type	Surface Mount
Package / Case	8-SMD, Gull Wing
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Affected
ECCN	EAR99

Substitute Part Grouping Explanation

Substitution of the PS8602L-A is determined by the following critical parameters:

Primary Substitution Criteria:

Single-channel configuration (Number of Channels = 1)
Isolation voltage rating of 5000Vrms or higher
Transistor output type (standard or with base)
DC input type
8mA output current per channel
Operating temperature range -55°C to 100°C
Surface mount package (8-SMD Gull Wing preferred)
Maximum forward current 25mA

Secondary Compatibility Factors:

Current Transfer Ratio minimum of 15% or higher @ 16mA
Output voltage rating of 20V or higher
Turn-on/turn-off timing within application tolerance
Forward voltage (Vf) between 1.3V and 1.7V

Substitute parts are grouped into two categories based on isolation voltage alignment:

Group 1: 5000Vrms Isolation (Direct Voltage Match)

HCPL-4503#520 (Broadcom Limited)
HCPL-4503-320E (Broadcom Limited)

Group 2: 5300Vrms Isolation (Enhanced Voltage Rating)

6N136-X017T (Vishay Semiconductor Opto Division)

Group 3: 3750Vrms Isolation (Lower Voltage Rating)

HCPL-4503#300 (Broadcom Limited)
HCPL-4503#360 (Broadcom Limited)
HCPL-4503#500 (Broadcom Limited)
HCPL-4503-360E (Broadcom Limited)
HCPL-4504#300 (Broadcom Limited)
HCPL-J454-400E (Broadcom Limited)
HCPL-J454-600E (Broadcom Limited)

Parameter Comparison

Part Number	Manufacturer	Isolation Voltage	Channels	Output Type	CTR Min @ 16mA	Turn On/Off (ns)	Output Voltage Max	Operating Temp	Package	Product Status
PS8602L-A	CEL	5000Vrms	1	Transistor	15%	500/300	35V	-55 to 100°C	8-SMD GW	Obsolete
6N136-X017T	Vishay	5300Vrms	1	Transistor w/ Base	19%	200/200	15V	-55 to 100°C	8-SMD GW	Active
HCPL-4503#520	Broadcom	5000Vrms	1	Transistor	19%	200/600	20V	-55 to 100°C	8-SMD GW	Active
HCPL-4503-320E	Broadcom	5000Vrms	1	Transistor	19%	200/600	20V	-55 to 100°C	8-SMD GW	Active
HCPL-4503#300	Broadcom	3750Vrms	1	Transistor	19%	200/600	20V	-55 to 100°C	8-SMD GW	Active
HCPL-4503#360	Broadcom	3750Vrms	1	Transistor	19%	200/600	20V	-55 to 100°C	8-SMD GW	Active
HCPL-4503#500	Broadcom	3750Vrms	1	Transistor	19%	200/600	20V	-55 to 100°C	8-SMD GW	Active
HCPL-4503-360E	Broadcom	3750Vrms	1	Transistor	19%	200/600	20V	-55 to 100°C	8-SMD GW	Active
HCPL-4504#300	Broadcom	3750Vrms	1	Transistor	25%	200/300	20V	-55 to 100°C	8-SMD GW	Active
HCPL-J454-400E	Broadcom	3750Vrms	1	Transistor	19%	500/800	20V	-55 to 100°C	8-SMD GW	Active
HCPL-J454-600E	Broadcom	3750Vrms	1	Transistor	19%	500/800	20V	-55 to 100°C	8-SMD GW	Active

Engineering Selection Recommendations

Tier 1 - Preferred Substitutes (Exact Isolation Voltage Match):

HCPL-4503#520 and HCPL-4503-320E are the primary recommended substitutes. Both maintain the 5000Vrms isolation rating of the PS8602L-A and are in active production status. HCPL-4503-320E carries ROHS3 compliance certification, making it suitable for applications with environmental regulatory requirements. HCPL-4503#520 is supplied in Tape & Reel packaging, supporting high-volume manufacturing workflows.

Tier 2 - Enhanced Voltage Alternative:

6N136-X017T (Vishay Semiconductor Opto Division) provides 5300Vrms isolation, exceeding the PS8602L-A specification. This part features transistor output with base connection, enabling additional circuit design flexibility. The part is ROHS3 compliant and in active production. Turn-on/turn-off timing is faster (200ns/200ns) compared to the PS8602L-A (500ns/300ns), which may require circuit validation in timing-sensitive applications.

Tier 3 - Lower Voltage Alternatives:

Parts rated at 3750Vrms isolation (HCPL-4503 series and HCPL-J454 series) are suitable only for applications where the isolation voltage requirement is 3750Vrms or lower. These include HCPL-4503#300, HCPL-4503#360, HCPL-4503#500, HCPL-4503-360E, HCPL-4504#300, HCPL-J454-400E, and HCPL-J454-600E. All are in active production. HCPL-4504#300 offers higher current transfer ratio (25% minimum) and faster turn-off time (300ns), providing improved switching performance. HCPL-J454 variants feature ROHS3 compliance.

Compliance Considerations:

The PS8602L-A carries REACH Affected status. Substitutes with ROHS3 compliance (HCPL-4503-320E, HCPL-4503-360E, HCPL-J454-400E, HCPL-J454-600E) are recommended for new designs subject to environmental regulations. All substitute parts maintain MSL 1 (Unlimited) moisture sensitivity rating, matching the original component.

Frequently Asked Questions (FAQ)

Q1: Can HCPL-4503#300 replace PS8602L-A in a 5000Vrms isolation application?

No. HCPL-4503#300 is rated for 3750Vrms isolation, which is 1250Vrms below the PS8602L-A specification. Use only if your application isolation requirement is 3750Vrms or lower. For 5000Vrms isolation, select HCPL-4503#520 or HCPL-4503-320E.

Q2: What is the difference between HCPL-4503#520 and HCPL-4503-320E?

Both parts are identical in electrical specifications (5000Vrms isolation, 19% CTR minimum, 200ns/600ns timing). The primary difference is packaging: HCPL-4503#520 is supplied in Tape & Reel (TR) format for automated assembly, while HCPL-4503-320E is supplied in Tube format. HCPL-4503-320E carries ROHS3 compliance certification. Select based on your procurement and assembly requirements.

Q3: Why does 6N136-X017T have lower maximum output voltage (15V) than PS8602L-A (35V)?

The 6N136-X017T features transistor output with base connection, which is a different output topology than the standard transistor output of PS8602L-A. The lower output voltage rating reflects the design characteristics of this variant. Verify your circuit's output voltage requirements before selecting this part.

Q4: Is HCPL-4504#300 compatible with PS8602L-A?

HCPL-4504#300 is rated for 3750Vrms isolation, not 5000Vrms. However, it offers higher current transfer ratio (25% minimum vs. 15% minimum) and faster turn-off time (300ns vs. 300ns). Use only if your isolation voltage requirement is 3750Vrms or lower and the improved CTR performance is beneficial.

Q5: Can I use HCPL-J454-400E or HCPL-J454-600E as substitutes?

Both parts are rated for 3750Vrms isolation and are suitable only for applications requiring 3750Vrms or lower. The primary difference between these variants and HCPL-4503 series is slower turn-on/turn-off timing (500ns/800ns vs. 200ns/600ns). Select only if isolation voltage requirement is 3750Vrms or lower and timing performance is acceptable.

Q6: What packaging options are available for 5000Vrms substitutes?

HCPL-4503#520 is supplied in Tape & Reel (TR) format. HCPL-4503-320E is supplied in Tube format. Both maintain 8-SMD Gull Wing package configuration. Select based on your manufacturing process: Tape & Reel for high-volume automated assembly, Tube for lower-volume or manual assembly operations.

Q7: Are all substitute parts REACH compliant?

The PS8602L-A is REACH Affected. Substitute parts with ROHS3 compliance (HCPL-4503-320E, HCPL-4503-360E, HCPL-J454-400E, HCPL-J454-600E, 6N136-X017T) meet environmental regulatory requirements. Parts without ROHS3 designation (HCPL-4503#300, HCPL-4503#360, HCPL-4503#500, HCPL-4504#300, HCPL-J454-600E) are RoHS non-compliant or unaffected by REACH. Verify regulatory requirements for your application.

Q8: What is the inventory status of substitute parts?

All substitute parts listed are in active production with available inventory: 6N136-X017T (784 pcs), HCPL-4503#520 (1641 pcs), HCPL-4503-320E (1036 pcs), HCPL-4503#300 (888 pcs), HCPL-4503#360 (825 pcs), HCPL-4503#500 (725 pcs), HCPL-4503-360E (878 pcs), HCPL-4504#300 (1057 pcs), HCPL-J454-400E (6000 pcs), HCPL-J454-600E (7917 pcs).

Q9: How do turn-on and turn-off times affect circuit performance?

PS8602L-A specifies 500ns turn-on and 300ns turn-off. Faster switching (200ns/200ns for 6N136-X017T, 200ns/600ns for HCPL-4503 series) reduces propagation delay and improves high-frequency performance. Slower switching (500ns/800ns for HCPL-J454 series) may limit maximum switching frequency. Verify your circuit's timing requirements before selecting a substitute.

Q10: Can I mix substitute parts in the same design?

No. Use a single substitute part number throughout your design to ensure consistent electrical performance, timing characteristics, and compliance certifications. Mixing different optoisolator models may introduce timing skew and unpredictable behavior in multi-channel isolation circuits.

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