HCPL-4504#360 Equivalent & Substitute Parts

Part Overview

The HCPL-4504#360 is a high-voltage optoisolator with transistor output manufactured by Broadcom Limited. This component provides 3750Vrms isolation in a single-channel configuration with 8-SMD surface mount packaging. The part is discontinued at DiGi Electronics, making equivalent and substitute parts necessary for ongoing design support and production continuity. Substitute parts must maintain compatibility across isolation voltage, channel count, output type, and thermal operating range while accommodating packaging and compliance variations.

Key Parameters

Parameter	HCPL-4504#360
Manufacturer	Broadcom Limited
Category	Optoisolators
Number of Channels	1
Voltage - Isolation	3750Vrms
Current Transfer Ratio (Min)	25% @ 16mA
Current Transfer Ratio (Max)	60% @ 16mA
Turn On / Turn Off Time (Typ)	200ns, 300ns
Input Type	DC
Output Type	Transistor
Voltage - Output (Max)	20V
Current - Output / Channel	8mA
Voltage - Forward (Vf) (Typ)	1.5V
Current - DC Forward (If) (Max)	25mA
Operating Temperature	-55°C ~ 100°C
Mounting Type	Surface Mount
Package / Case	8-SMD, Gull Wing
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the HCPL-4504#360 are grouped based on the following critical parameters that determine functional compatibility:

Primary Substitution Criteria:

Number of Channels: Must equal 1
Input Type: Must be DC
Operating Temperature Range: Must support -55°C ~ 100°C
Mounting Type: Surface Mount preferred for direct replacement
Current - Output / Channel: Must support 8mA minimum
Moisture Sensitivity Level: Must be 1 (Unlimited)

Secondary Compatibility Factors:

Voltage - Isolation: Minimum 3750Vrms (higher values acceptable)
Current Transfer Ratio: Minimum 25% @ 16mA (higher values acceptable)
Turn On / Turn Off Time: Maximum 300ns acceptable
Output Type: Transistor or Transistor with Base (base output adds functionality without removing compatibility)
Voltage - Output (Max): Minimum 15V (higher values acceptable)

Packaging Variations: Substitute parts may differ in packaging format (8-SMD, 8-DIP, Tube, Tape & Reel) while maintaining electrical equivalence. Surface mount variants (8-SMD) provide direct form-factor compatibility.

Parameter Comparison

Part Number	Manufacturer	Isolation Voltage	Channels	CTR Min @ 16mA	Output Type	Output Voltage Max	Output Current	Turn On/Off Time	Operating Temp	Package	RoHS Status	Product Status
HCPL-4504#360	Broadcom Limited	3750Vrms	1	25%	Transistor	20V	8mA	200ns, 300ns	-55°C ~ 100°C	8-SMD, Gull Wing	Non-compliant	Discontinued
HCPL-4504-300E	Broadcom Limited	3750Vrms	1	25%	Transistor	20V	8mA	200ns, 300ns	-55°C ~ 100°C	8-DIP, Gull Wing	ROHS3 Compliant	Active
6N135-X007	Vishay Semiconductor Opto Division	5300Vrms	1	7%	Transistor with Base	15V	8mA	300ns, 300ns	-55°C ~ 100°C	8-DIP	ROHS3 Compliant	Active
6N135-X007T	Vishay Semiconductor Opto Division	5300Vrms	1	7%	Transistor with Base	15V	8mA	300ns, 300ns	-55°C ~ 100°C	8-SMD, Gull Wing	ROHS3 Compliant	Active
6N135-X017	Vishay Semiconductor Opto Division	5300Vrms	1	7%	Transistor with Base	15V	8mA	300ns, 300ns	-55°C ~ 100°C	8-SMD, Gull Wing	ROHS3 Compliant	Active
6N135-X017T	Vishay Semiconductor Opto Division	5300Vrms	1	7%	Transistor with Base	15V	8mA	300ns, 300ns	-55°C ~ 100°C	8-SMD, Gull Wing	ROHS3 Compliant	Active
6N135S1(TA)	Everlight Electronics Co Ltd	5000Vrms	1	7%	Transistor with Base	20V	8mA	350ns, 500ns	-55°C ~ 100°C	8-SMD, Gull Wing	ROHS3 Compliant	Active
6N135S1(TB)	Everlight Electronics Co Ltd	5000Vrms	1	7%	Transistor with Base	20V	8mA	350ns, 500ns	-55°C ~ 100°C	8-SMD, Gull Wing	ROHS3 Compliant	Active
6N135S1(TB)-V	Everlight Electronics Co Ltd	5000Vrms	1	7%	Transistor with Base	20V	8mA	350ns, 500ns	-55°C ~ 100°C	8-SMD, Gull Wing	ROHS3 Compliant	Active
6N136-X007	Vishay Semiconductor Opto Division	5300Vrms	1	19%	Transistor with Base	15V	8mA	200ns, 200ns	-55°C ~ 100°C	8-SMD, Gull Wing	ROHS3 Compliant	Active
6N136-X007T	Vishay Semiconductor Opto Division	5300Vrms	1	19%	Transistor with Base	15V	8mA	200ns, 200ns	-55°C ~ 100°C	8-SMD, Gull Wing	ROHS3 Compliant	Active

Engineering Selection Recommendations

Direct Parametric Equivalent: HCPL-4504-300E is the primary equivalent, maintaining identical electrical specifications (3750Vrms isolation, 25% minimum CTR, 200ns/300ns switching times) and operating temperature range. The primary difference is packaging format (8-DIP Gull Wing versus 8-SMD Gull Wing) and RoHS3 compliance status. This part is currently active in production.

Higher Isolation Voltage Alternatives: Parts from Vishay (6N135 and 6N136 series) and Everlight (6N135S1 variants) provide increased isolation voltage (5000Vrms to 5300Vrms) with compatible single-channel, 8-SMD surface mount configurations. These parts feature transistor-with-base output topology, which is functionally compatible with standard transistor output applications. All are RoHS3 compliant and active in production.

Packaging Considerations: For direct form-factor replacement in surface mount assemblies, select 8-SMD Gull Wing variants: 6N135-X007T, 6N135-X017, 6N135-X017T, 6N135S1(TA), 6N135S1(TB), 6N135S1(TB)-V, 6N136-X007, or 6N136-X007T. For through-hole applications, 6N135-X007 (8-DIP) is available.

Compliance Status: The original HCPL-4504#360 is RoHS non-compliant. All substitute parts listed are RoHS3 compliant, supporting modern manufacturing and environmental requirements.

Frequently Asked Questions (FAQ)

Q: Can I use a higher isolation voltage part as a substitute? A: Yes. Parts with 5000Vrms or 5300Vrms isolation exceed the 3750Vrms requirement and are functionally compatible. Higher isolation voltage provides additional safety margin in high-voltage applications.

Q: What is the difference between transistor output and transistor-with-base output? A: Transistor-with-base output provides an additional base connection for external circuit control, offering enhanced flexibility. Standard transistor output applications function identically with transistor-with-base parts; the base connection simply remains unused.

Q: Does packaging format affect electrical performance? A: No. 8-SMD and 8-DIP packages with identical part numbers (same base product) deliver identical electrical specifications. Packaging selection depends on assembly method (surface mount versus through-hole) and PCB layout requirements.

Q: Why do some substitute parts show lower Current Transfer Ratio (CTR) minimum values? A: CTR minimum values vary by manufacturer and product line. The 6N135 and 6N136 series specify 7% and 19% minimum CTR respectively, compared to HCPL-4504#360 at 25%. Lower CTR minimums are acceptable in applications where the actual operating CTR exceeds circuit requirements. Verify circuit design margins before selection.

Q: Are all listed parts currently available? A: All substitute parts listed carry active product status. HCPL-4504-300E is the closest equivalent with identical specifications. Vishay and Everlight alternatives provide higher isolation voltage with active production status and RoHS3 compliance.

Q: What is the significance of packaging variants (Tube, Tape & Reel, Cut Tape)? A: Packaging variants affect order quantity, handling, and supply chain logistics but do not impact electrical performance. Tube packaging suits lower-volume orders; Tape & Reel and Cut Tape variants support automated assembly and higher-volume production.

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