IS2701-1 Equivalent & Substitute Parts

Part Overview

The IS2701-1 is an optoisolator with transistor output manufactured by Isocom Components 2004 LTD. This single-channel device provides 3750Vrms isolation voltage and is designed for DC input applications requiring galvanic isolation. The part is in active product status with full RoHS3 compliance and REACH unaffected designation. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain considerations, or application-specific packaging preferences.

Key Parameters

Parameter	Value
Manufacturer Part Number	IS2701-1
Manufacturer	Isocom Components 2004 LTD
Category	Optoisolators
Number of Channels	1
Voltage - Isolation	3750Vrms
Current Transfer Ratio (Min)	50% @ 5mA
Current Transfer Ratio (Max)	600% @ 5mA
Output Type	Transistor
Voltage - Output (Max)	80V
Current - Output / Channel	50mA
Vce Saturation (Max)	200mV
Operating Temperature	-55°C ~ 100°C
Mounting Type	Surface Mount
Package / Case	4-SMD, Gull Wing
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the IS2701-1 are qualified based on the following critical parameters that determine functional equivalence:

Single-channel configuration
3750Vrms isolation voltage
Transistor output topology
Current transfer ratio range: 50% to 600% @ 5mA
Maximum output voltage: 80V
Maximum output current: 50mA per channel
Vce saturation: 200mV maximum
Operating temperature range: -55°C to 100°C
Surface mount technology with 4-SMD, Gull Wing package
DC input type
RoHS3 compliance and REACH unaffected status

All identified substitute parts meet these electrical and mechanical specifications. Differences in packaging format (Tape & Reel versus Cut Tape & Digi-Reel) and supplier device package designation do not affect functional compatibility in applications where the IS2701-1 is specified.

Parameter Comparison

Parameter	IS2701-1	IS121	IS181	IS357	HCPL-181-060E
Manufacturer	Isocom	Isocom	Isocom	Isocom	Broadcom
Number of Channels	1	1	1	1	1
Voltage - Isolation	3750Vrms	3750Vrms	3750Vrms	3750Vrms	3750Vrms
Current Transfer Ratio (Min)	50% @ 5mA	50% @ 5mA	50% @ 5mA	50% @ 5mA	50% @ 5mA
Current Transfer Ratio (Max)	600% @ 5mA	600% @ 5mA	600% @ 5mA	600% @ 5mA	600% @ 5mA
Output Type	Transistor	Transistor	Transistor	Transistor	Transistor
Voltage - Output (Max)	80V	80V	80V	80V	80V
Current - Output / Channel	50mA	50mA	50mA	50mA	50mA
Vce Saturation (Max)	200mV	200mV	200mV	200mV	200mV
Rise / Fall Time (Typ)	4µs, 3µs	4µs, 3µs	4µs, 3µs	4µs, 3µs	4µs, 3µs
Operating Temperature	-55°C ~ 100°C	-55°C ~ 100°C	-55°C ~ 100°C	-55°C ~ 100°C	-55°C ~ 100°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	4-SMD, Gull Wing	4-SMD, Gull Wing	4-SMD, Gull Wing	4-SMD, Gull Wing	4-SMD, Gull Wing
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active	Active
Packaging Format	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®	Cut Tape (CT) & Digi-Reel®

Engineering Selection Recommendations

All substitute parts listed maintain full electrical and mechanical equivalence to the IS2701-1. Selection among these alternatives is based on the following factors:

Isocom Components 2004 LTD Parts (IS121, IS181, IS357): These parts are manufactured by the same supplier as the primary part. IS121 and IS181 are supplied in Tape & Reel format matching the IS2701-1 packaging preference. IS357 is available in Cut Tape & Digi-Reel format, offering alternative supply chain options. All three maintain identical electrical specifications and RoHS3 compliance.

Broadcom Limited HCPL-181-060E: This part is manufactured by Broadcom Limited and provides equivalent electrical performance with identical isolation voltage, current transfer ratio, output characteristics, and temperature range. The device is supplied in Cut Tape & Digi-Reel format. RoHS3 compliance and REACH unaffected status are maintained.

All parts are in active product status with unlimited moisture sensitivity level (MSL 1), ensuring consistent handling and storage requirements across the substitute group.

Frequently Asked Questions (FAQ)

Q: Can IS121, IS181, IS357, and HCPL-181-060E be used interchangeably with IS2701-1?

A: Yes. All substitute parts meet the identical electrical specifications including 3750Vrms isolation voltage, 50-600% current transfer ratio, 80V maximum output voltage, 50mA output current, and 200mV Vce saturation. Operating temperature range, rise/fall times, and output transistor characteristics are equivalent. Surface mount 4-SMD Gull Wing package geometry is identical across all parts.

Q: What is the difference between Tape & Reel and Cut Tape & Digi-Reel packaging?

A: Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel are different supply formats for surface mount components. Both formats contain the same component in the same package. Tape & Reel is continuous reel format suitable for high-volume automated assembly. Cut Tape & Digi-Reel provides smaller quantity options. Selection depends on production volume and assembly equipment compatibility, not electrical performance.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. IS2701-1, IS121, IS181, IS357, and HCPL-181-060E are all RoHS3 compliant with REACH unaffected status. All parts have MSL 1 (Unlimited) moisture sensitivity level.

Q: What is the difference between Isocom and Broadcom parts in this list?

A: IS2701-1, IS121, IS181, and IS357 are manufactured by Isocom Components 2004 LTD. HCPL-181-060E is manufactured by Broadcom Limited. All five parts meet identical electrical and mechanical specifications for isolation voltage, output characteristics, temperature range, and package format. Manufacturer selection depends on supply availability and procurement preferences.

Q: Can I substitute a part from a different manufacturer without circuit redesign?

A: Yes. All listed substitute parts are parametrically equivalent with identical electrical performance across all critical specifications. No circuit redesign is required. Pin configuration, package footprint, and electrical characteristics are equivalent.

Q: What inventory levels are available for each part?

A: IS2701-1: 4100 pcs; IS121: 5592 pcs; IS181: 2750 pcs; IS357: 6920 pcs; HCPL-181-060E: 3230 pcs. Inventory levels are subject to change and should be confirmed at time of procurement.

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