2SC27780CL Equivalent & Substitute Parts

Part Overview

The 2SC27780CL is an RF transistor NPN manufactured by Panasonic Electronic Components, designed for RF applications operating at 230MHz with a maximum collector-emitter breakdown voltage of 20V and power dissipation of 200mW. The device is packaged in a Surface Mount Mini3-G1 (TO-236-3/SOT-23-3) configuration and is classified as obsolete. Due to its obsolete status, equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for production and repair applications.

Substiute Parts

2SC27780CL

Panasonic Electronic ComponentsIn Stock: 8832SC27780CL Datasheet

Current PartRFQ

MMBTH10-4LT1G

onsemiIn Stock: 18418MMBTH10-4LT1G Datasheet

DirectRFQ

2N918 PBFREE

Central Semiconductor CorpIn Stock: 18392N918 PBFREE Datasheet

SimilarRFQ

BFP720FESDH6327XTSA1

Infineon TechnologiesIn Stock: 1039BFP720FESDH6327XTSA1 Datasheet

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BFR360FH6327XTSA1

Infineon TechnologiesIn Stock: 185236BFR360FH6327XTSA1 Datasheet

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MCH4015-TL-H

onsemiIn Stock: 4011MCH4015-TL-H Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2SC27780CL is determined by the following critical parameters:

Primary Substitution Criteria:

• Transistor Type: NPN (mandatory match)
• Voltage - Collector Emitter Breakdown (Max): Must equal or exceed 20V
• Frequency - Transition: Must equal or exceed 230MHz
• Power - Max: Must equal or exceed 200mW
• Mounting Type: Surface Mount (preferred for form factor compatibility)
• Package / Case: SOT-23-3 or equivalent Surface Mount package (preferred)

Secondary Compatibility Factors:

• DC Current Gain (hFE): Minimum 110 @ specified conditions
• Current - Collector (Ic) (Max): Minimum 30mA
• Operating Temperature: Maximum 150°C or higher
• Product Status: Active status preferred for long-term availability

The substitute parts listed below meet varying degrees of these criteria. Parts are grouped by their alignment with the original specifications and their suitability for direct replacement or functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

MMBTH10-4LT1G (onsemi)

This part provides the closest functional equivalence to the 2SC27780CL. It matches the Surface Mount SOT-23-3 package, exceeds the voltage rating (25V vs. 20V), and provides superior frequency performance (800MHz vs. 230MHz). The DC current gain (120 @ 4mA, 10V) is comparable to the original specification. The part is Active status with ROHS3 compliance and unlimited MSL rating. Inventory availability is high (18,400 pcs). This part is suitable for direct replacement in most applications where the original 2SC27780CL was specified.

2N918 PBFREE (Central Semiconductor Corp)

This part maintains the same power dissipation (200mW) and provides adequate frequency performance (600MHz). However, it uses Through Hole packaging (TO-72) rather than Surface Mount, which requires PCB layout modification. The voltage rating (15V) is below the original specification (20V), and the DC current gain (20 @ 3mA, 1V) is significantly lower. This part is suitable only for applications where PCB redesign is acceptable and voltage margins are not critical. Product status is Active with ROHS3 compliance.

BFP720FESDH6327XTSA1 (Infineon Technologies)

This part offers exceptional frequency performance (45GHz) but operates at a reduced voltage rating (4.7V vs. 20V). The power dissipation (100mW) is below the original specification. The package is 4-TSFP (4-SMD, Flat Leads), which differs from the original SOT-23-3. This part is suitable only for applications operating at lower voltages where the enhanced frequency capability is required. Product status is Active with ROHS3 compliance.

BFR360FH6327XTSA1 (Infineon Technologies)

This part provides moderate frequency performance (14GHz) with a voltage rating (9V) below the original specification. The power dissipation (210mW) exceeds the original requirement. The package is SOT-723, which differs from the original SOT-23-3. Inventory availability is very high (185,129 pcs). This part is suitable for applications where voltage margins are not critical and the enhanced frequency capability is beneficial. Product status is Active with ROHS3 compliance.

MCH4015-TL-H (onsemi)

This part provides superior power dissipation capability (450mW) and frequency performance (10GHz). The voltage rating (12V) is below the original specification (20V). The package is SOT-343F, which differs from the original SOT-23-3. The maximum collector current (100mA) significantly exceeds the original specification (30mA). This part is suitable for applications requiring higher power handling where voltage margins are not critical. Product status is Active with ROHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can MMBTH10-4LT1G be used as a direct replacement for 2SC27780CL?

A: MMBTH10-4LT1G is functionally equivalent for most applications. Both parts use the SOT-23-3 Surface Mount package, operate as NPN transistors, and have comparable DC current gain characteristics. MMBTH10-4LT1G exceeds the voltage and frequency specifications of the original part. Verification of circuit performance is required for critical applications.

Q: Why does 2N918 PBFREE require PCB redesign?

A: 2N918 PBFREE uses Through Hole packaging (TO-72) while the 2SC27780CL uses Surface Mount packaging (SOT-23-3). These packages have different footprints and mounting methods, requiring PCB layout modification. Additionally, the voltage rating (15V) is below the original specification (20V).

Q: What is the primary limitation of BFP720FESDH6327XTSA1?

A: The primary limitation is the reduced voltage rating (4.7V vs. 20V). This part is suitable only for low-voltage applications. The package (4-TSFP) also differs from the original SOT-23-3, requiring PCB redesign.

Q: Which substitute part has the highest inventory availability?

A: BFR360FH6327XTSA1 has the highest inventory availability with 185,129 pcs in stock. However, its voltage rating (9V) is below the original specification (20V).

Q: Are all substitute parts ROHS3 compliant?

A: Yes, all substitute parts listed are ROHS3 compliant. The original 2SC27780CL does not specify RoHS status.

Q: What is the key parameter that determines substitution suitability?

A: The key parameters are Transistor Type (NPN), Voltage - Collector Emitter Breakdown (must equal or exceed 20V), Frequency - Transition (must equal or exceed 230MHz), and Power - Max (must equal or exceed 200mW). Package compatibility and product status are secondary considerations.

Q: Can MCH4015-TL-H replace 2SC27780CL in all applications?

A: MCH4015-TL-H cannot replace 2SC27780CL in applications requiring the full 20V voltage rating, as it is rated for only 12V. The package (SOT-343F) also differs from the original SOT-23-3. This part is suitable only for applications where voltage margins are not critical.

Q: What is the Moisture Sensitivity Level (MSL) for all parts?

A: All parts, including the original 2SC27780CL and all substitute parts, have an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions.

Q: Which substitute part most closely matches the original frequency specification?

A: MMBTH10-4LT1G provides the closest match to the original frequency specification while maintaining the same package type. It operates at 800MHz compared to the original 230MHz, providing superior frequency performance in the same SOT-23-3 package.