TLP127(V4-MBS-TL,F) Equivalent & Substitute Parts

Part Overview

The TLP127(V4-MBS-TL,F) is a single-channel optoisolator with Darlington output manufactured by Toshiba Semiconductor and Storage. This component provides 2500Vrms isolation voltage and is designed for DC input applications requiring galvanic isolation with Darlington output configuration. The part is currently classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Key Parameters

Parameter	Value
Manufacturer	Toshiba Semiconductor and Storage
Category	Optoisolators
Number of Channels	1
Voltage - Isolation	2500Vrms
Current Transfer Ratio (Min)	1000% @ 1mA
Output Type	Darlington
Voltage - Output (Max)	300V
Current - Output / Channel	150mA
Operating Temperature	-55°C ~ 100°C
Mounting Type	Surface Mount
Package / Case	6-SMD (4 Leads), Gull Wing
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the TLP127(V4-MBS-TL,F) is determined by the following critical parameters:

Single-channel Darlington output optoisolator configuration
Isolation voltage rating of 2500Vrms or higher
Current transfer ratio minimum of 1000% @ 1mA
Maximum output voltage of 300V
Output current capability of 150mA per channel
Surface mount packaging with 4-lead configuration
Operating temperature range compatibility

The TLP187(TPL,E) qualifies as a substitute based on meeting or exceeding all critical electrical parameters while maintaining functional equivalence in single-channel Darlington output optoisolator applications.

Parameter Comparison

Parameter	TLP127(V4-MBS-TL,F)	TLP187(TPL,E)	Compatibility
Manufacturer	Toshiba Semiconductor and Storage	Toshiba Semiconductor and Storage	Same
Number of Channels	1	1	Equivalent
Voltage - Isolation	2500Vrms	3750Vrms	Substitute exceeds requirement
Current Transfer Ratio (Min)	1000% @ 1mA	1000% @ 1mA	Equivalent
Output Type	Darlington	Darlington	Equivalent
Voltage - Output (Max)	300V	300V	Equivalent
Current - Output / Channel	150mA	150mA	Equivalent
Turn On / Turn Off Time (Typ)	50µs, 15µs	50µs, 15µs	Equivalent
Rise / Fall Time (Typ)	40µs, 15µs	40µs, 15µs	Equivalent
Input Type	DC	DC	Equivalent
Vce Saturation (Max)	1.2V	1.2V	Equivalent
Operating Temperature	-55°C ~ 100°C	-55°C ~ 110°C	Substitute exceeds requirement
Mounting Type	Surface Mount	Surface Mount	Equivalent
Product Status	Obsolete	Active	Substitute is active

Engineering Selection Recommendations

The TLP187(TPL,E) is the qualified substitute for the obsolete TLP127(V4-MBS-TL,F). Selection is based on the following engineering criteria:

Product Status: The TLP187(TPL,E) maintains active product status with Toshiba Semiconductor and Storage, ensuring continued availability and manufacturing support compared to the obsolete TLP127(V4-MBS-TL,F).

Electrical Equivalence: The substitute meets all critical electrical specifications including isolation voltage (3750Vrms exceeds the 2500Vrms requirement), current transfer ratio (1000% @ 1mA), output voltage (300V maximum), and output current (150mA per channel).

Compliance and Certifications: The TLP187(TPL,E) is RoHS3 compliant and REACH unaffected, providing regulatory compliance for modern applications.

Thermal Performance: The extended operating temperature range (-55°C ~ 110°C) of the TLP187(TPL,E) provides additional margin compared to the original part specification.

Package Consideration: Both components are surface mount devices with 4-lead configurations. The TLP127(V4-MBS-TL,F) uses 6-MFSOP packaging while the TLP187(TPL,E) uses 6-SOP packaging. PCB layout verification is required to confirm physical compatibility.

Frequently Asked Questions (FAQ)

Q: Can the TLP187(TPL,E) directly replace the TLP127(V4-MBS-TL,F) in existing designs?

A: Electrical substitution is valid based on equivalent or superior performance across all critical parameters. Physical package compatibility must be verified, as the TLP127(V4-MBS-TL,F) uses 6-MFSOP (Gull Wing) packaging while the TLP187(TPL,E) uses 6-SOP packaging. PCB footprint and land pattern confirmation is required before implementation.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution eligibility is determined by: single-channel Darlington output configuration, isolation voltage rating of 2500Vrms or higher, current transfer ratio minimum of 1000% @ 1mA, maximum output voltage of 300V, output current of 150mA per channel, and surface mount 4-lead package type.

Q: Why is the TLP187(TPL,E) considered superior to the TLP127(V4-MBS-TL,F)?

A: The TLP187(TPL,E) provides higher isolation voltage (3750Vrms versus 2500Vrms), extended operating temperature range (-55°C ~ 110°C versus -55°C ~ 100°C), and maintains active product status with current manufacturing support.

Q: Are there any timing differences between these components?

A: No. Both components specify identical turn-on/turn-off times (50µs, 15µs) and rise/fall times (40µs, 15µs), ensuring equivalent switching performance in DC input applications.

Q: What packaging differences exist between these parts?

A: The TLP127(V4-MBS-TL,F) uses 6-MFSOP (4 Leads) Gull Wing packaging, while the TLP187(TPL,E) uses 6-SOP (0.173", 4.40mm Width) packaging. Physical footprint verification is necessary for PCB compatibility assessment.

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