2SC2983-O-TP Equivalent & Substitute Parts

Part Overview

The 2SC2983-O-TP is an NPN bipolar junction transistor manufactured by Micro Commercial Co, designed for surface mount applications in the DPAK package. This component operates at a maximum collector current of 1.5 A with a collector-emitter breakdown voltage of 160 V, delivering 1 W maximum power dissipation at a transition frequency of 100 MHz. The device is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing production and maintenance applications. Substitute parts must maintain electrical compatibility across critical parameters including voltage ratings, current capacity, and thermal characteristics while accommodating available packaging and inventory status.

Substiute Parts

2SC2983-O-TP

Micro Commercial CoIn Stock: 11802SC2983-O-TP Datasheet

Current PartRFQ

2SD1918TLQ

Rohm SemiconductorIn Stock: 128092SD1918TLQ Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2SC2983-O-TP is determined by strict equivalence across the following critical electrical and mechanical parameters:

Mandatory Matching Parameters:

• Transistor Type: NPN configuration
• Current - Collector (Ic) (Max): 1.5 A minimum
• Voltage - Collector Emitter Breakdown (Max): 160 V minimum
• Mounting Type: Surface Mount
• Package / Case: TO-252-3, DPAK (2 Leads + Tab), SC-63
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Allowable Parameter Variations: Substitute parts may exceed the maximum power dissipation rating, transition frequency, and DC current gain specifications without compromising functional compatibility. These parameters represent performance enhancements that do not degrade circuit operation when the substitute part is rated equal to or higher than the original specification.

The 2SD1918TLQ meets all mandatory matching criteria and qualifies as a direct electrical and mechanical substitute for the 2SC2983-O-TP.

Parameter Comparison

Engineering Selection Recommendations

The 2SD1918TLQ from Rohm Semiconductor serves as a direct substitute for the obsolete 2SC2983-O-TP. Both devices maintain identical electrical ratings for collector current (1.5 A maximum) and collector-emitter breakdown voltage (160 V maximum), with matching thermal operating limits (150°C junction temperature) and identical package geometry (TO-252-3 DPAK).

The 2SD1918TLQ provides enhanced power dissipation capability (10 W versus 1 W), which represents a performance improvement over the original specification and does not introduce compatibility concerns in applications designed for the 2SC2983-O-TP. Both components carry ROHS3 compliance certification and unlimited moisture sensitivity classification (MSL 1), ensuring equivalent environmental and regulatory compliance.

The 2SD1918TLQ is classified as "Not For New Designs," indicating limited long-term availability. For applications requiring extended production support, alternative sourcing strategies should be evaluated beyond the scope of this substitution analysis.

Frequently Asked Questions (FAQ)

Q: Can the 2SD1918TLQ be used as a direct replacement for the 2SC2983-O-TP in existing circuit designs?

A: Yes. The 2SD1918TLQ meets all mandatory electrical and mechanical compatibility criteria. Both devices share identical collector current (1.5 A), collector-emitter breakdown voltage (160 V), operating temperature range (150°C), and package configuration (TO-252-3 DPAK). No circuit modifications are required.

Q: What is the significance of the higher power rating on the 2SD1918TLQ (10 W versus 1 W)?

A: The 2SD1918TLQ's 10 W power dissipation rating exceeds the original 1 W specification. This represents enhanced thermal performance and does not create compatibility issues. Applications designed for 1 W operation will function within the thermal envelope of the substitute part.

Q: Are there package compatibility concerns when substituting the 2SD1918TLQ?

A: No. Both the 2SC2983-O-TP and 2SD1918TLQ use identical package specifications: TO-252-3, DPAK (2 Leads + Tab), SC-63. Pin configuration and PCB footprint requirements are identical, permitting direct board-level substitution.

Q: Do both parts meet the same regulatory compliance standards?

A: Yes. Both the 2SC2983-O-TP and 2SD1918TLQ carry ROHS3 compliance certification and are classified as MSL 1 (Unlimited moisture sensitivity level), ensuring equivalent environmental and regulatory compliance for applications subject to these requirements.

Q: What is the difference in transition frequency between these devices?

A: The 2SC2983-O-TP operates at 100 MHz transition frequency, while the 2SD1918TLQ operates at 80 MHz. For applications operating below 80 MHz, this difference is not functionally significant. Applications requiring operation above 80 MHz should be evaluated against the specific frequency requirements of the circuit design.

Q: Why is the 2SD1918TLQ classified as "Not For New Designs"?

A: This classification indicates that the manufacturer does not recommend the 2SD1918TLQ for new product development. However, it remains a valid substitute for existing designs using the obsolete 2SC2983-O-TP. Long-term availability should be confirmed with the component supplier for production planning purposes.