BFG 19S E6327 Equivalent & Substitute Parts

Part Overview

The BFG 19S E6327 is an RF transistor NPN manufactured by Infineon Technologies, designed for RF applications requiring operation at 5.5GHz with a maximum power dissipation of 1W. This device is packaged in a surface mount PG-SOT223-4 configuration and is rated for a maximum collector-emitter breakdown voltage of 15V with a maximum collector current of 210mA.

The BFG 19S E6327 is classified as obsolete. Locating equivalent or substitute parts is necessary to support ongoing system maintenance, repair, and production requirements where original components are no longer available from primary sources.

Substiute Parts

BFG 19S E6327

Infineon TechnologiesIn Stock: 798BFG 19S E6327 Datasheet

Current PartRFQ

KSP10BU

Fairchild SemiconductorIn Stock: 124127KSP10BU Datasheet

MFR RecommendedRFQ

MAPR-000912-500S00

MACOM Technology SolutionsIn Stock: 1006MAPR-000912-500S00 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BFG 19S E6327 is constrained by the following critical parameters:

Transistor Type: All substitutes must be NPN bipolar junction transistors to maintain circuit polarity and biasing compatibility.

Voltage Rating: The substitute must have a collector-emitter breakdown voltage (BVCEO) equal to or greater than 15V to ensure safe operation within the original design envelope.

Frequency Performance: The substitute must support RF operation at or above 5.5GHz to maintain signal integrity in high-frequency applications.

Power Dissipation: The substitute must be rated for 1W or greater power handling to prevent thermal stress and device failure.

Current Capability: The substitute must support a maximum collector current of 210mA or greater.

Mounting Type: Surface mount packaging is preferred for direct PCB integration; through-hole alternatives may require circuit board redesign.

The two identified substitutes present different trade-offs in performance and application scope:

KSP10BU is an active NPN transistor with higher voltage rating (25V) but significantly reduced frequency capability (650MHz) and lower power rating (350mW). This substitute is suitable only for lower-frequency RF applications and represents a downgrade in high-frequency performance.

MAPR-000912-500S00 is an active NPN transistor with substantially higher voltage rating (80V), significantly higher power rating (500W), and much higher current capability (52.5A). This substitute is designed for high-power RF applications and represents an upgrade in power handling capacity. However, frequency specification is not provided, and mounting type differs (chassis mount versus surface mount).

Parameter Comparison

Engineering Selection Recommendations

For Direct Substitution in Existing Surface Mount Designs:

The BFG 19S E6327 is obsolete and no direct equivalent with identical performance characteristics and surface mount packaging is available from the provided substitute list. Both identified substitutes present significant deviations in form factor, frequency capability, or power rating.

KSP10BU Consideration:

KSP10BU is an active product with established supply availability (124,035 pcs in stock). However, this substitute exhibits substantial performance limitations: frequency capability is reduced to 650MHz (88% reduction from 5.5GHz specification), power rating is reduced to 350mW (65% reduction from 1W specification), and mounting type is through-hole rather than surface mount. This substitute is applicable only to applications operating at frequencies significantly below 5.5GHz and with reduced power requirements. Circuit board redesign is required for through-hole integration.

MAPR-000912-500S00 Consideration:

MAPR-000912-500S00 is an active product with established supply availability (916 pcs in stock) and ROHS3 compliance. This substitute provides substantially higher voltage rating (80V), significantly higher power rating (500W), and much higher current capability (52.5A). However, frequency specification is not provided, mounting type is chassis mount rather than surface mount, and package configuration differs substantially. This substitute is applicable to high-power RF applications but requires significant circuit redesign and is not suitable for direct PCB integration in surface mount designs.

Compliance Status:

The original BFG 19S E6327 is RoHS non-compliant. MAPR-000912-500S00 is ROHS3 compliant, which may be required for new designs or systems subject to RoHS regulations. KSP10BU RoHS status is not specified.

Frequently Asked Questions (FAQ)

Q: Can KSP10BU directly replace BFG 19S E6327 in an existing circuit?

A: No. KSP10BU has significantly reduced frequency capability (650MHz versus 5.5GHz), lower power rating (350mW versus 1W), and different mounting type (through-hole versus surface mount). Circuit redesign is required.

Q: Can MAPR-000912-500S00 directly replace BFG 19S E6327 in an existing circuit?

A: No. MAPR-000912-500S00 has different mounting type (chassis mount versus surface mount), unspecified frequency capability, and substantially different package configuration. Significant circuit redesign is required.

Q: What is the primary limitation preventing direct substitution?

A: The BFG 19S E6327 is an obsolete surface mount RF transistor optimized for 5.5GHz operation with 1W power rating. No substitute in the provided list maintains all three characteristics: surface mount packaging, 5.5GHz frequency capability, and 1W power rating.

Q: Which substitute is suitable for lower-frequency RF applications?

A: KSP10BU is suitable for RF applications operating at 650MHz or below. This device is active, has established supply availability, and maintains NPN transistor type and similar operating temperature rating.

Q: Which substitute is suitable for high-power RF applications?

A: MAPR-000912-500S00 is suitable for high-power RF applications requiring 500W power dissipation and 52.5A collector current. This device is active, ROHS3 compliant, and has established supply availability. Frequency capability must be verified against application requirements.

Q: Are there packaging considerations for substitution?

A: Yes. The original BFG 19S E6327 uses surface mount packaging (PG-SOT223-4). KSP10BU uses through-hole packaging (TO-92-3), and MAPR-000912-500S00 uses chassis mount packaging. Both substitutes require circuit board redesign for integration.

Q: What compliance differences exist between the main part and substitutes?

A: BFG 19S E6327 is RoHS non-compliant. MAPR-000912-500S00 is ROHS3 compliant. KSP10BU RoHS status is not specified. Systems subject to RoHS regulations should prioritize MAPR-000912-500S00 if power and frequency requirements are compatible.