2SA1837(F,M) Equivalent & Substitute Parts

Part Overview

The 2SA1837(F,M) is a PNP bipolar junction transistor manufactured by Toshiba Semiconductor and Storage, designed for general-purpose switching and amplification applications. This component features a maximum collector current of 1 A, collector-emitter breakdown voltage of 230 V, and a maximum power dissipation of 2 W in a Through Hole TO-220-3 package configuration.

The 2SA1837(F,M) is classified as an obsolete product. Identification of equivalent and substitute parts is necessary to support legacy system maintenance, repair operations, and design continuity where this component is specified in existing applications.

Substiute Parts

2SA1837(F,M)

Toshiba Semiconductor and StorageIn Stock: 81662SA1837(F,M) Datasheet

Current PartRFQ

TTA006B,Q(S

Toshiba Semiconductor and StorageIn Stock: 1003TTA006B,Q(S Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2SA1837(F,M) is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

• Transistor polarity (PNP configuration required)
• Maximum collector current rating (1 A minimum)
• Collector-emitter breakdown voltage (230 V minimum)
• Maximum power dissipation (2 W minimum)
• DC current gain characteristics (hFE ≥ 100)
• Transition frequency (70 MHz minimum)

Mechanical Compatibility Criteria:

• Mounting type (Through Hole required)
• Package form factor (TO-220 series compatible)
• Thermal operating range (150°C maximum junction temperature)

Compliance and Status Criteria:

• Moisture sensitivity level (MSL 1 or equivalent)
• RoHS compliance status where applicable
• Product availability and active manufacturing status

The substitute part TTA006B,Q(S meets the transistor type requirement (PNP) and is manufactured by the same supplier (Toshiba Semiconductor and Storage). However, detailed electrical parameter specifications for the TTA006B,Q(S are not provided in the input data, limiting full parameter-to-parameter comparison.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The 2SA1837(F,M) is classified as obsolete, while the TTA006B,Q(S is actively manufactured. For new designs or long-term system support, the active product status of TTA006B,Q(S provides supply chain continuity and manufacturing support advantages.

Compliance Status: The TTA006B,Q(S is explicitly documented as RoHS Compliant, whereas RoHS compliance status for the 2SA1837(F,M) is not specified in the provided data. For applications subject to RoHS regulatory requirements, the TTA006B,Q(S offers documented compliance assurance.

Electrical Parameter Alignment: Both components are PNP bipolar junction transistors manufactured by Toshiba Semiconductor and Storage and share identical MSL, ECCN, and HTSUS classifications. However, complete electrical parameter specifications for the TTA006B,Q(S are not provided in the input data. Full electrical compatibility verification requires access to the TTA006B,Q(S detailed datasheet specifications for current ratings, voltage ratings, power dissipation, and frequency characteristics.

Mechanical Compatibility: The package designation for TTA006B,Q(S is not specified in the provided input. Mounting type and package form factor compatibility must be confirmed through datasheet review prior to component selection.

Frequently Asked Questions (FAQ)

Q: Can the TTA006B,Q(S directly replace the 2SA1837(F,M) in existing applications?

A: Both components are PNP bipolar junction transistors from Toshiba Semiconductor and Storage with identical MSL and export classifications. However, direct substitution requires confirmation that the TTA006B,Q(S meets or exceeds all electrical parameters of the 2SA1837(F,M), including collector current (1 A), collector-emitter breakdown voltage (230 V), power dissipation (2 W), and transition frequency (70 MHz). Package and mounting type compatibility must also be verified. Complete datasheet specifications for the TTA006B,Q(S are necessary for full compatibility assessment.

Q: What is the significance of the obsolete product status of the 2SA1837(F,M)?

A: Obsolete product status indicates that the 2SA1837(F,M) is no longer in active production. This classification necessitates identification of equivalent or substitute components for system maintenance, repair, and design continuity. The TTA006B,Q(S, with active product status, represents a potential alternative for ongoing supply requirements.

Q: Are there electrical parameter differences between the 2SA1837(F,M) and TTA006B,Q(S?

A: Detailed electrical parameter specifications for the TTA006B,Q(S are not provided in the available input data. Electrical parameter comparison is limited to the common classifications shared by both components. Access to the complete TTA006B,Q(S datasheet is required to establish electrical equivalence or identify parameter differences in collector current, voltage ratings, power dissipation, gain characteristics, and frequency response.

Q: What package types are compatible with the 2SA1837(F,M)?

A: The 2SA1837(F,M) is specified in a TO-220-3 Through Hole package. Substitute components must maintain mechanical compatibility with this package form factor and mounting type. The package designation for the TTA006B,Q(S is not specified in the provided input data and must be confirmed through datasheet review.

Q: Does RoHS compliance affect substitution decisions?

A: The TTA006B,Q(S is documented as RoHS Compliant, while RoHS compliance status for the 2SA1837(F,M) is not specified. For applications subject to RoHS regulatory requirements (such as European Union directives), the documented RoHS compliance of the TTA006B,Q(S provides regulatory assurance. Applications without RoHS requirements may not be affected by this compliance difference.

Q: What is the Moisture Sensitivity Level (MSL) significance for these components?

A: Both the 2SA1837(F,M) and TTA006B,Q(S are classified as MSL 1 (Unlimited), indicating unlimited shelf life without moisture control requirements. This classification ensures compatibility in storage, handling, and deployment environments without special moisture-sensitive device precautions.