2SC4098T106P Equivalent & Substitute Transistors Reference

Part Overview

The 2SC4098T106P by Rohm Semiconductor is an NPN RF bipolar junction transistor (BJT) rated for 25V collector-emitter breakdown voltage, 50mA collector current, and a transition frequency of 300MHz. It is packaged for surface-mount applications in the SC-70, SOT-323 package (Supplier Device Package: UMT3). The part status is specified as "Last Time Buy," indicating it is not recommended for new designs and may become obsolete. Therefore, it is necessary to identify alternate models with comparable parameters to ensure design continuity and supply chain stability.

Substiute Parts

2SC4098T106P

Rohm SemiconductorIn Stock: 1201432SC4098T106P Datasheet

Current PartRFQ

ZUMT618TA

Diodes IncorporatedIn Stock: 17141ZUMT618TA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 2SC4098T106P is based strictly on the following parameters:

• Transistor Type (NPN)
• Voltage - Collector Emitter Breakdown (must be ≥ required voltage)
• Current - Collector (Ic) (Max)
• Frequency - Transition (MHz)
• Power - Max (mW)
• DC Current Gain (hFE) at defined conditions
• Package / Case (form factor and footprint match)
• Operating Temperature Range (Tj)
• Regulatory status: RoHS compliance, MSL, REACH status

Only those substitute transistor models that meet or exceed these key electrical, mechanical, and compliance parameters within the same package type are included.

Parameter Comparison

Engineering Selection Recommendations

Given the "Last Time Buy" status of the 2SC4098T106P and the continued "Active" status of the ZUMT618TA, using the substitute supports ongoing supply chain availability. Both parts are ROHS3 compliant, have MSL 1 rating, and are REACH unaffected, ensuring regulatory compliance without additional requirements. Selection of substitute parts should remain within these documented compliance and certification parameters.

Frequently Asked Questions (FAQ)

Q1: What critical parameters must match when substituting the 2SC4098T106P?
A1: Key substitution parameters include transistor type (NPN), voltage and current ratings, transition frequency, gain, power dissipation, package/case, mounting type, operating temperature, RoHS compliance, MSL rating, and REACH status.

Q2: Does the package of ZUMT618TA match the 2SC4098T106P?
A2: Both utilize the SC-70, SOT-323 surface mount package, ensuring mechanical compatibility.

Q3: Is there a difference in compliance or regulation status between the main and substitute parts?
A3: Both the 2SC4098T106P and ZUMT618TA are ROHS3 compliant, MSL 1 (unlimited), and REACH unaffected.

Q4: Can the ZUMT618TA be used in the same operating temperature conditions as the 2SC4098T106P?
A4: Both parts are rated for operation up to 150°C junction temperature.

Q5: Why is it necessary to consider substitute parts for the 2SC4098T106P?
A5: The "Last Time Buy" product status indicates limited future availability, warranting evaluation of immediate substitutes to maintain design and production continuity.