2SC3585-T1B-A Equivalent & Substitute Parts Reference

Part Overview

The 2SC3585-T1B-A, manufactured by CEL, is an NPN bipolar junction transistor (BJT) designed for RF applications. It features a maximum collector-emitter breakdown voltage of 10V, transition frequency up to 10GHz, a maximum collector current of 35mA, and is housed in a SOT-23-3 (TO-236-3) surface-mount package. The device is now categorized as obsolete. For engineers managing support, ongoing designs, or maintenance of assemblies using 2SC3585-T1B-A, selecting substitute or equivalent models with compatible electrical and package specifications is necessary.

Substiute Parts

2SC3585-T1B-A

CELIn Stock: 44572SC3585-T1B-A Datasheet

Current PartRFQ

BFU550AVL

NXP USA Inc.In Stock: 1001BFU550AVL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 2SC3585-T1B-A is determined by matching all relevant parameters, including:

• Transistor type (NPN)
• Maximum collector-emitter breakdown voltage
• Transition frequency (ft)
• Noise figure at similar frequencies
• Gain (dB)
• Maximum power dissipation
• Minimum DC current gain at specified collector current and voltage
• Maximum collector current
• Operating temperature (TJ)
• Surface-mount package (TO-236-3, SC-59, or SOT-23-3)
• Moisture sensitivity level (MSL)
• Product compliance (REACH, ECCN)

A substitute must meet or exceed each key parameter and maintain equivalent packaging and compliance features.

Parameter Comparison

Engineering Selection Recommendations

The 2SC3585-T1B-A is currently obsolete. The BFU550AVL is an active part, classified as RoHS compliant and REACH unaffected, with equivalent package type, similar or better electrical parameters, and matching classification (ECCN EAR99, MSL 1). Selection between these parts should be based on current product status and compliance documentation supplied by the manufacturer.

Frequently Asked Questions (FAQ)

Q1: What are the main criteria for substituting the 2SC3585-T1B-A in a design?
A1: The main criteria are transistor polarity (NPN), maximum collector-emitter breakdown voltage, transition frequency, noise figure, gain, maximum power, minimum DC current gain, maximum collector current, operating temperature range, mounting method, package compatibility, MSL rating, and compliance documentation.

Q2: Is the package of BFU550AVL compatible with the 2SC3585-T1B-A?
A2: Yes. Both products are available in SOT-23-3, TO-236-3, and SC-59 packages, supporting direct replacements in footprint-compatible layouts.

Q3: How is compliance status relevant in part substitution?
A3: Compliance indicators such as REACH status, RoHS compliance, and ECCN determine if the part meets regulatory requirements for environments such as manufacturing and international shipping.

Q4: Does the difference in specific operating parameters (e.g., collector current or power) present selection limitations?
A4: Substitute selection is valid only if all critical parameters meet or exceed those in the original 2SC3585-T1B-A and are within the parameters explicitly stated above.

Q5: What role does the Moisture Sensitivity Level (MSL) play in substitution?
A5: MSL 1 (unlimited) for both parts ensures they can be handled and stored under standard industry conditions without special precautions.