IL 610-3 General Purpose Digital Isolator Equivalent & Substitute Parts

Part Overview

The IL 610-3 is a general purpose digital isolator manufactured by NVE Corp/Isolation Products, utilizing Giant Magnetoresistive (GMR) technology to provide 2500Vrms isolation across a single unidirectional channel. This component operates at 40Mbps data rate with 15kV/µs common mode transient immunity in an 8-SOIC surface mount package.

The IL 610-3 is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity, ensure supply chain availability, and leverage active product lines with enhanced performance characteristics or improved compliance status.

Key Parameters

Parameter	Value
Voltage - Isolation	2500Vrms
Number of Channels	1
Channel Type	Unidirectional
Common Mode Transient Immunity (Min)	15kV/µs
Data Rate	40Mbps
Voltage - Supply	3V ~ 5.5V
Mounting Type	Surface Mount
Technology	GMR (Giant Magnetoresistive)
Isolated Power	No

Substitute Part Grouping Explanation

Substitution eligibility for the IL 610-3 is determined by the following critical parameters:

Primary Substitution Criteria:

Voltage - Isolation: 2500Vrms (exact match required)
Number of Channels: 1 (exact match required)
Channel Type: Unidirectional (exact match required)
Common Mode Transient Immunity: 15kV/µs (exact match required)
Voltage - Supply: 3V ~ 5.5V (exact match required)
Technology: GMR (Giant Magnetoresistive) (exact match required)
Isolated Power: No (exact match required)

Secondary Compatibility Factors:

Data Rate: Substitute parts with equal or higher data rate are functionally compatible
Propagation Delay: Lower values indicate improved performance
Pulse Width Distortion: Lower values indicate improved performance
Operating Temperature Range: Substitute parts must support the application's required temperature range
Package / Case: Physical compatibility depends on PCB layout constraints

Substitute parts are grouped into two categories: direct equivalents (same base product number with different packaging or compliance variants) and similar alternatives (different manufacturers with identical electrical specifications).

Parameter Comparison

Parameter	IL 610-3	IL 610-3E	HCPL-0900	HCPL-0900-000E	HCPL-0900-500E	HCPL-9000-300E	HCPL-9000-500E
Manufacturer	NVE Corp	NVE Corp	Broadcom Limited	Broadcom Limited	Broadcom Limited	Broadcom Limited	Broadcom Limited
Voltage - Isolation	2500Vrms	2500Vrms	2500Vrms	2500Vrms	2500Vrms	2500Vrms	2500Vrms
Number of Channels	1	1	1	1	1	1	1
Channel Type	Unidirectional	Unidirectional	Unidirectional	Unidirectional	Unidirectional	Unidirectional	Unidirectional
Common Mode Transient Immunity (Min)	15kV/µs	15kV/µs	15kV/µs	15kV/µs	15kV/µs	15kV/µs	15kV/µs
Data Rate	40Mbps	100Mbps	110MBd	110MBd	110MBd	110MBd	110MBd
Propagation Delay tpLH / tpHL (Max)	25ns / 25ns	15ns / 15ns	15ns / 15ns	15ns / 15ns	15ns / 15ns	15ns / 15ns	15ns / 15ns
Pulse Width Distortion (Max)	10ns	5ns	3ns	3ns	3ns	3ns	3ns
Rise / Fall Time (Typ)	2ns / 2ns	2ns / 2ns	1ns / 1ns	1ns / 1ns	1ns / 1ns	1ns / 1ns	1ns / 1ns
Voltage - Supply	3V ~ 5.5V	3V ~ 5.5V	3V ~ 5.5V	3V ~ 5.5V	3V ~ 5.5V	3V ~ 5.5V	3V ~ 5.5V
Operating Temperature	-55°C ~ 125°C	-40°C ~ 85°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SMD, Gull Wing	8-SMD, Gull Wing
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Direct Equivalent - Recommended Primary Substitute:

IL 610-3E is the direct equivalent of IL 610-3, manufactured by NVE Corp within the same IsoLoop® series. This part maintains identical electrical specifications for isolation voltage, channel configuration, and common mode transient immunity. IL 610-3E offers enhanced performance with 100Mbps data rate compared to the original 40Mbps specification, reduced propagation delay (15ns versus 25ns), and improved pulse width distortion (5ns versus 10ns). IL 610-3E is classified as Active product status and achieves ROHS3 compliance, addressing regulatory requirements. Operating temperature range is reduced to -40°C ~ 85°C; applications requiring -55°C operation must select alternative parts. Packaging is Tube format with 2650 units in stock.

Broadcom HCPL-0900 Series - Performance-Enhanced Alternatives:

The Broadcom HCPL-0900 family provides functionally equivalent substitution with enhanced performance characteristics. All variants maintain 2500Vrms isolation, 1-channel unidirectional configuration, 15kV/µs CMTI, and 3V ~ 5.5V supply voltage. Data rate increases to 110MBd with propagation delay of 15ns and pulse width distortion of 3ns. Rise and fall times improve to 1ns. All HCPL-0900 variants support -55°C ~ 125°C operating temperature range.

HCPL-0900-000E and HCPL-0900-500E are ROHS3 compliant variants in 8-SOIC package. HCPL-0900-000E is available in Tube packaging (86400 units in stock). HCPL-0900-500E is available in Tape & Reel format (3277 units in stock).

HCPL-0900 and HCPL-0900-500 are non-compliant variants in 8-SOIC package, available in Tube and Tape & Reel formats respectively.

Broadcom HCPL-9000 Series - Alternative Package Format:

HCPL-9000-300E and HCPL-9000-500E provide electrical equivalence with different package geometry (8-SMD, Gull Wing instead of 8-SOIC). These parts are suitable only for applications where gull wing package footprint is compatible with PCB layout. Both variants are ROHS3 compliant and support -55°C ~ 125°C operating temperature. HCPL-9000-300E is available in Tube format (1147 units). HCPL-9000-500E is available in Tape & Reel format (906 units).

Selection Criteria Summary:

For drop-in replacement with improved compliance: IL 610-3E (same manufacturer, same package, ROHS3 compliant)
For maximum performance and compliance with standard SOIC package: HCPL-0900-000E or HCPL-0900-500E
For applications requiring gull wing package: HCPL-9000-300E or HCPL-9000-500E
For applications with -40°C ~ 85°C temperature requirement only: IL 610-3E offers cost-effective alternative

Frequently Asked Questions (FAQ)

Q: Can IL 610-3E directly replace IL 610-3 in existing designs?

A: IL 610-3E is electrically compatible with IL 610-3 for all critical isolation and signal integrity parameters. Both parts share identical 2500Vrms isolation voltage, 1-channel unidirectional configuration, 15kV/µs CMTI, and 3V ~ 5.5V supply voltage. IL 610-3E offers superior performance with higher data rate (100Mbps versus 40Mbps), lower propagation delay, and reduced pulse width distortion. The primary design consideration is operating temperature range: IL 610-3E supports -40°C ~ 85°C while IL 610-3 supports -55°C ~ 125°C. Applications operating below -40°C require alternative selection.

Q: What is the difference between HCPL-0900 variants (standard, -000E, -500, -500E)?

A: All HCPL-0900 variants share identical electrical specifications and 8-SOIC package geometry. Differences are in packaging format and RoHS compliance status. HCPL-0900 and HCPL-0900-500 are RoHS non-compliant; HCPL-0900-000E and HCPL-0900-500E are ROHS3 compliant. HCPL-0900 and HCPL-0900-000E are supplied in Tube packaging; HCPL-0900-500 and HCPL-0900-500E are supplied in Tape & Reel format. Selection depends on regulatory requirements and procurement format preferences.

Q: Are HCPL-9000 parts suitable replacements for IL 610-3?

A: HCPL-9000-300E and HCPL-9000-500E are electrically equivalent to IL 610-3 across all critical parameters. However, these parts use 8-SMD Gull Wing package geometry instead of 8-SOIC. Substitution is only possible if PCB layout accommodates gull wing footprint. Electrical performance is superior to IL 610-3 with 110MBd data rate, 15ns propagation delay, and 3ns pulse width distortion. Both variants are ROHS3 compliant and support -55°C ~ 125°C operating temperature.

Q: What does ROHS3 compliance mean for component selection?

A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting use of lead, cadmium, mercury, and other hazardous materials. For applications subject to environmental or regulatory requirements, ROHS3 compliant variants (IL 610-3E, HCPL-0900-000E, HCPL-0900-500E, HCPL-9000-300E, HCPL-9000-500E) are mandatory. Non-compliant variants may be restricted in certain markets or applications.

Q: How do data rate differences affect substitution decisions?

A: IL 610-3 operates at 40Mbps; all substitute parts operate at 100Mbps or higher. Higher data rate capability does not negatively impact lower-speed applications. Substitute parts with higher data rate ratings are fully compatible with designs requiring 40Mbps or lower. No design modifications are necessary when substituting to higher data rate parts.

Q: What inventory considerations apply to these substitute parts?

A: IL 610-3 has 939 units in stock (obsolete status). IL 610-3E has 2650 units available. Broadcom HCPL-0900 variants range from 728 to 86400 units depending on specific part number and packaging format. HCPL-9000 variants have 886 to 1147 units available. For high-volume requirements, HCPL-0900-000E offers maximum inventory (86400 units).

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