ISP847BL Equivalent & Substitute Parts

Part Overview

The ISP847BL is a quad-channel optoisolator with transistor output manufactured by Isocom Components 2004 LTD. This 16-pin DIP component provides galvanic isolation up to 5300Vrms across four independent channels, each capable of 50mA output current. The device is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when identical electrical specifications, isolation voltage, channel configuration, and package format are maintained across the ISP847 series variants.

Key Parameters

Parameter	Value
Manufacturer Part Number	ISP847BL
Manufacturer	Isocom Components 2004 LTD
Category	Optoisolators
Series	ISP847
Number of Channels	4
Voltage - Isolation	5300Vrms
Current Transfer Ratio (Min)	200% @ 5mA
Current Transfer Ratio (Max)	600% @ 5mA
Output Type	Transistor
Voltage - Output (Max)	35V
Current - Output / Channel	50mA
Vce Saturation (Max)	200mV
Rise / Fall Time (Typ)	4µs, 3µs
Operating Temperature	-30°C ~ 100°C
Package / Case	16-DIP (0.300", 7.62mm)
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the ISP847BL are identified within the ISP847 series based on strict parametric equivalence. The following criteria determine substitutability:

Critical Parameters for Substitution:

Voltage - Isolation: 5300Vrms (must match exactly)
Number of Channels: 4 (must match exactly)
Current Transfer Ratio: 200% (Min) @ 5mA, 600% (Max) @ 5mA (must match exactly)
Output Type: Transistor (must match exactly)
Voltage - Output (Max): 35V (must match exactly)
Current - Output / Channel: 50mA (must match exactly)
Vce Saturation (Max): 200mV (must match exactly)
Package / Case: 16-DIP (0.300", 7.62mm) (must match exactly)
Mounting Type: Through Hole (must match exactly)

All substitute parts maintain identical electrical performance, isolation characteristics, thermal operating range, and physical form factor. Substitutes differ only in packaging designation suffixes (XBL, XBLG, XBLSM) which represent variant packaging or marking specifications within the same electrical family.

Parameter Comparison

Parameter	ISP847BL	ISP847XBL	ISP847XBLG	ISP847XBLSM
Manufacturer	Isocom Components 2004 LTD	Isocom Components 2004 LTD	Isocom Components 2004 LTD	Isocom Components 2004 LTD
Series	ISP847	ISP847	ISP847	ISP847
Number of Channels	4	4	4	4
Voltage - Isolation	5300Vrms	5300Vrms	5300Vrms	5300Vrms
Current Transfer Ratio (Min)	200% @ 5mA	200% @ 5mA	200% @ 5mA	200% @ 5mA
Current Transfer Ratio (Max)	600% @ 5mA	600% @ 5mA	600% @ 5mA	600% @ 5mA
Output Type	Transistor	Transistor	Transistor	Transistor
Voltage - Output (Max)	35V	35V	35V	35V
Current - Output / Channel	50mA	50mA	50mA	50mA
Vce Saturation (Max)	200mV	200mV	200mV	200mV
Rise / Fall Time (Typ)	4µs, 3µs	4µs, 3µs	4µs, 3µs	4µs, 3µs
Operating Temperature	-30°C ~ 100°C	-30°C ~ 100°C	-30°C ~ 100°C	-30°C ~ 100°C
Package / Case	16-DIP (0.300", 7.62mm)	16-DIP (0.300", 7.62mm)	16-DIP (0.300", 7.62mm)	16-DIP (0.300", 7.62mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

All substitute parts within the ISP847 series maintain full parametric equivalence to the ISP847BL. Selection among ISP847BL, ISP847XBL, ISP847XBLG, and ISP847XBLSM is based on availability and packaging designation requirements rather than electrical performance differentiation.

All variants carry Active product status, confirming ongoing manufacturer support and availability. RoHS3 compliance and REACH Unaffected status are uniform across all options, ensuring regulatory alignment for industrial and commercial applications requiring galvanic isolation at 5300Vrms with quad-channel transistor output configuration.

The 16-DIP through-hole package format is consistent across all substitutes, permitting direct board-level replacement without PCB redesign or layout modification.

Frequently Asked Questions (FAQ)

Q: Can ISP847XBL, ISP847XBLG, and ISP847XBLSM be used interchangeably with ISP847BL?

A: Yes. All parts maintain identical electrical specifications including isolation voltage (5300Vrms), channel count (4), current transfer ratio (200%-600% @ 5mA), output voltage (35V max), output current (50mA per channel), and package format (16-DIP). Differences in part number suffixes reflect packaging or marking variants only.

Q: What determines whether a part is a valid substitute?

A: Substitutability is determined by exact matching of isolation voltage, number of channels, current transfer ratio range, output type (transistor), maximum output voltage, maximum output current per channel, saturation voltage, and physical package dimensions. All ISP847 series variants listed meet these criteria.

Q: Are there any compliance or regulatory differences between the substitute parts?

A: No. All substitute parts carry identical RoHS3 compliance status, REACH Unaffected designation, and Moisture Sensitivity Level 1 (Unlimited) rating. Regulatory and environmental compliance is uniform across all variants.

Q: Does the mounting type differ among substitutes?

A: No. All substitute parts use Through Hole mounting in 16-DIP (0.300", 7.62mm) package format, ensuring compatibility with standard DIP sockets and through-hole PCB assembly processes.

Q: What is the operating temperature range for all substitute parts?

A: All ISP847 series variants operate across -30°C to 100°C, providing consistent thermal performance across the substitute family.

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