2SC5509-A Equivalent & Substitute Parts Reference

Part Overview

Manufacturer part number 2SC5509-A (CEL) is an obsolete surface mount NPN RF bipolar junction transistor, category: Transistors, Bipolar (BJT). It features collector-emitter breakdown voltage of 3.3V, 100mA maximum collector current, 15GHz transition frequency, 190mW power, and a noise figure of 1.2dB @ 2GHz. As this model is discontinued, sourcing alternatives with equivalent or superior parameters is required to maintain design continuity or support ongoing product lifecycle requirements. Alternative models are compared strictly by electrical and mechanical parameters suitable for substitution in this category.

Substiute Parts

2SC5509-A

CELIn Stock: 9862SC5509-A Datasheet

Current PartRFQ

BFP183WH6327XTSA1

Infineon TechnologiesIn Stock: 15329BFP183WH6327XTSA1 Datasheet

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BFP420H6801XTSA1

Infineon TechnologiesIn Stock: 9605BFP420H6801XTSA1 Datasheet

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BFR340FH6327XTSA1

Infineon TechnologiesIn Stock: 6535BFR340FH6327XTSA1 Datasheet

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BFU630F,115

NXP USA Inc.In Stock: 17850BFU630F,115 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute components are selected in accordance with the electrical and mechanical parameters of the obsolete 2SC5509-A. The key parameters for equivalency include: transistor type (NPN), maximum collector-emitter breakdown voltage, transition frequency, noise figure, gain, maximum power dissipation, minimum DC current gain at designated conditions, maximum collector current, operating temperature, mounting method, and package compatibility.

Parameter Comparison

Engineering Selection Recommendations

2SC5509-A is classified as obsolete and is not suitable for new designs. Substitute transistors such as BFP183WH6327XTSA1, BFP420H6801XTSA1, BFR340FH6327XTSA1, and BFU630F,115 are active products with equivalent or superior electrical parameters and are RoHS3 compliant with unrestricted moisture sensitivity level (MSL 1) and REACH unaffected status. All substitutes fall under the ECCN EAR99 and are suitable for surface-mount assembly, supporting continued compliance in regulated environments.

Frequently Asked Questions (FAQ)

Q1: Which key parameters are critical for selecting a substitute for 2SC5509-A?
A1: Substitutes are chosen by matching transistor type, maximum voltage ratings, frequency, noise figure, gain, maximum collector current, power dissipation, package/case, and mounting type.

Q2: Are package differences significant for compatibility?
A2: Yes. 2SC5509-A originally uses SOT-343F. Substitute parts are available in SOT-343, SC-82A, SOT-343F, SOT-723, and 4-DFP, requiring confirmation of footprint compatibility.

Q3: Are all listed substitutes compliant with RoHS and REACH standards?
A3: All listed substitute transistors are RoHS3 compliant, with REACH unaffected status and MSL 1 (unlimited).

Q4: Can active alternatives fully replace the obsolete 2SC5509-A in all applications?
A4: Only parameters provided, including electrical limits and package form factor, determine equivalency. Substitution must be based strictly on these measured criteria.

Q5: Is operating temperature range maintained across substitutes?
A5: All substitutes specify an operating junction temperature of 150°C, matching the 2SC5509-A.

Q6: What are typical inventory and availability statuses for substitutes?
A6: Substitute transistors are listed as active with significant inventory available, as shown in respective part details.