HCPL-J454#500 Equivalent & Substitute Parts

Part Overview

The HCPL-J454#500 is a 3750Vrms optoisolator with transistor output, single channel, housed in 8-SMD Gull Wing package. This component is discontinued at DiGi Electronics. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for new production runs and field replacements.

Key Parameters

Parameter	Value
Voltage - Isolation	3750Vrms
Number of Channels	1
Current Transfer Ratio (Min)	19% @ 16mA
Current Transfer Ratio (Max)	60% @ 16mA
Turn On / Turn Off Time (Typ)	500ns, 800ns
Output Type	Transistor
Voltage - Output (Max)	20V
Current - Output / Channel	8mA
Voltage - Forward (Vf) (Typ)	1.59V
Current - DC Forward (If) (Max)	25mA
Operating Temperature	-55°C ~ 100°C
Mounting Type	Surface Mount
Package / Case	8-SMD, Gull Wing
Input Type	DC

Substitute Part Grouping Explanation

Substitution for the HCPL-J454#500 is organized into two categories based on electrical and mechanical compatibility:

Direct Equivalents (Broadcom HCPL-J454 Series): Parts that maintain identical isolation voltage (3750Vrms), output type (transistor without base), current transfer ratio range, switching times, and 8-SMD Gull Wing package. These parts are functionally interchangeable with the original component.

Parametric Equivalents (Vishay 6N135/6N136 and Everlight 6N135S1 Series): Parts that meet or exceed isolation voltage requirements (5000Vrms to 5300Vrms), maintain single-channel transistor output with base connection, support identical operating temperature range, and are available in 8-SMD Gull Wing surface mount packages. These parts provide higher isolation voltage margin and improved switching performance while maintaining mechanical and electrical compatibility within the application's tolerance envelope.

Key parameters determining substitution eligibility:

Isolation voltage: minimum 3750Vrms
Output type: Transistor (with or without base)
Number of channels: 1
Mounting type: Surface Mount
Package: 8-SMD, Gull Wing
Operating temperature: -55°C ~ 100°C
Input type: DC

Parameter Comparison

Part Number	Manufacturer	Isolation Voltage	CTR Min @ 16mA	CTR Max @ 16mA	Turn On/Off Time (Typ)	Output Type	Vout Max	Iout / Channel	Vf (Typ)	If Max	Temp Range	Package	Product Status
HCPL-J454#500	Broadcom Limited	3750Vrms	19%	60%	500ns, 800ns	Transistor	20V	8mA	1.59V	25mA	-55°C ~ 100°C	8-SMD, Gull Wing	Discontinued
HCPL-J454-500E	Broadcom Limited	3750Vrms	19%	60%	500ns, 800ns	Transistor	20V	8mA	1.59V	25mA	-55°C ~ 100°C	8-SMD, Gull Wing	Active
HCPL-J454-600E	Broadcom Limited	3750Vrms	19%	60%	500ns, 800ns	Transistor	20V	8mA	1.59V	25mA	-55°C ~ 100°C	8-SMD, Gull Wing	Active
6N135-X007	Vishay Semiconductor Opto Division	5300Vrms	7%	—	300ns, 300ns	Transistor with Base	15V	8mA	1.33V	25mA	-55°C ~ 100°C	8-DIP	Active
6N135-X007T	Vishay Semiconductor Opto Division	5300Vrms	7%	—	300ns, 300ns	Transistor with Base	15V	8mA	1.33V	25mA	-55°C ~ 100°C	8-SMD, Gull Wing	Active
6N135-X017	Vishay Semiconductor Opto Division	5300Vrms	7%	—	300ns, 300ns	Transistor with Base	15V	8mA	1.33V	25mA	-55°C ~ 100°C	8-SMD, Gull Wing	Active
6N135-X017T	Vishay Semiconductor Opto Division	5300Vrms	7%	—	300ns, 300ns	Transistor with Base	15V	8mA	1.33V	25mA	-55°C ~ 100°C	8-SMD, Gull Wing	Active
6N135S1(TA)	Everlight Electronics Co Ltd	5000Vrms	7%	50%	350ns, 500ns	Transistor with Base	20V	8mA	1.45V	25mA	-55°C ~ 100°C	8-SMD, Gull Wing	Active
6N135S1(TB)	Everlight Electronics Co Ltd	5000Vrms	7%	50%	350ns, 500ns	Transistor with Base	20V	8mA	1.45V	25mA	-55°C ~ 100°C	8-SMD, Gull Wing	Active
6N135S1(TB)-V	Everlight Electronics Co Ltd	5000Vrms	7%	50%	350ns, 500ns	Transistor with Base	20V	8mA	1.45V	25mA	-55°C ~ 100°C	8-SMD, Gull Wing	Active
6N136-X007	Vishay Semiconductor Opto Division	5300Vrms	19%	—	200ns, 200ns	Transistor with Base	15V	8mA	1.33V	25mA	-55°C ~ 100°C	8-SMD, Gull Wing	Active

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): HCPL-J454-500E and HCPL-J454-600E are active production parts from Broadcom Limited that maintain 100% electrical and mechanical compatibility with HCPL-J454#500. Both parts are RoHS3 compliant and carry REACH Unaffected status. HCPL-J454-500E is available in standard packaging, while HCPL-J454-600E is supplied in Tape & Reel format for automated assembly. Inventory availability is 5700 and 7917 units respectively.

For Higher Isolation Voltage Applications: Vishay 6N135 and 6N136 series parts (X007, X007T, X017, X017T variants) provide 5300Vrms isolation voltage with 8-SMD Gull Wing surface mount packages. The 6N136-X007 variant offers 19% minimum current transfer ratio, matching the original part's CTR specification. All Vishay parts are RoHS3 compliant and REACH Unaffected. Switching performance is improved (200ns to 300ns versus 500ns to 800ns).

For Broadest Compatibility: Everlight 6N135S1 series (TA, TB, TB-V variants) provides 5000Vrms isolation voltage in 8-SMD Gull Wing packages with maximum output voltage of 20V, matching the original specification. Current transfer ratio maximum reaches 50%, and all variants are RoHS3 compliant. These parts are suitable for applications requiring higher isolation margin while maintaining output voltage compatibility.

All recommended substitutes are active production parts with established supply chains and RoHS3 compliance certification.

Frequently Asked Questions (FAQ)

Q: Can HCPL-J454-500E directly replace HCPL-J454#500 without circuit modification? A: Yes. HCPL-J454-500E is electrically and mechanically identical to HCPL-J454#500. All electrical parameters, package dimensions, and pin assignments are equivalent. No circuit changes are required.

Q: What is the difference between HCPL-J454-500E and HCPL-J454-600E? A: Both parts are electrically identical with 3750Vrms isolation and identical performance specifications. The primary difference is packaging: HCPL-J454-500E is supplied in standard packaging, while HCPL-J454-600E is supplied in Tape & Reel format for automated pick-and-place assembly.

Q: Can Vishay 6N135 or 6N136 parts replace HCPL-J454#500? A: Yes, with design considerations. Vishay parts provide higher isolation voltage (5300Vrms versus 3750Vrms), which is beneficial for isolation margin. However, output voltage is limited to 15V versus 20V on the original part. The 6N135 and 6N136 include a base connection on the transistor output, which may require circuit modification if the original design does not accommodate this additional pin. Switching times are faster (200ns to 300ns).

Q: Can Everlight 6N135S1 parts replace HCPL-J454#500? A: Yes. Everlight 6N135S1 variants provide 5000Vrms isolation voltage and maintain 20V maximum output voltage, matching the original specification. These parts include transistor base connection and are available in 8-SMD Gull Wing packages. Circuit modification may be required if the original design does not use the base pin.

Q: What is the significance of the base connection on 6N135/6N136 and 6N135S1 parts? A: The base connection provides direct access to the transistor base for advanced circuit configurations. If the original HCPL-J454#500 design does not use this pin, it can be left unconnected without affecting operation. The transistor will function identically to a standard transistor output optoisolator.

Q: Are all recommended substitutes RoHS3 compliant? A: Yes. HCPL-J454-500E, HCPL-J454-600E, all Vishay 6N135/6N136 variants, and all Everlight 6N135S1 variants are RoHS3 compliant. All parts carry REACH Unaffected status.

Q: What packaging options are available for surface mount assembly? A: All recommended parts are available in 8-SMD Gull Wing surface mount packages suitable for automated assembly. Tape & Reel packaging is available for HCPL-J454-600E and Vishay 6N135-X017T for high-volume production.

Q: How do switching times compare between the original and substitute parts? A: HCPL-J454#500 specifies 500ns turn-on and 800ns turn-off time. Vishay 6N135/6N136 parts offer faster switching at 200ns to 300ns. Everlight 6N135S1 parts provide 350ns turn-on and 500ns turn-off time. Faster switching may improve circuit performance but requires verification that the application can tolerate reduced propagation delay.

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