DME201020R Equivalent & Substitute Parts

Part Overview

The DME201020R is a Bipolar (BJT) Transistor Array featuring complementary NPN and PNP transistors in an emitter-coupled configuration, manufactured by Panasonic Electronic Components. This device is rated for 60V collector-emitter breakdown voltage with a maximum collector current of 500mA and 300mW power dissipation in a Surface Mount Mini5-G3-B package (SC-74A, SOT-753).

The DME201020R is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives for ongoing design requirements and production needs. Substitute parts must maintain compatibility across critical electrical parameters including voltage ratings, current handling capability, and package form factor to ensure direct replacement viability.

Substiute Parts

DME201020R

Panasonic Electronic ComponentsIn Stock: 810DME201020R Datasheet

Current PartRFQ

QS5Y2FSTR

Rohm SemiconductorIn Stock: 51134QS5Y2FSTR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the DME201020R is determined by strict adherence to the following critical electrical and mechanical parameters:

Voltage Rating Compatibility: The substitute part must support a minimum collector-emitter breakdown voltage of 60V. The QS5Y2FSTR operates at 50V maximum, which is below the original specification.

Current Handling: The substitute must accommodate the maximum collector current requirement of 500mA. The QS5Y2FSTR is rated for 3A maximum collector current, exceeding this requirement.

Transistor Configuration: Both the main part and substitute must feature complementary NPN and PNP transistors in an emitter-coupled array configuration.

Power Dissipation: The substitute must support the 300mW power rating. The QS5Y2FSTR is rated for 500mW, providing adequate margin.

Frequency Performance: The substitute must support the 130MHz transition frequency requirement. The QS5Y2FSTR operates at 320MHz and 300MHz, exceeding this specification.

Package Form Factor: Surface mount compatibility is required. The QS5Y2FSTR uses SOT-23-5 Thin (TSOT-23-5) packaging, which differs from the DME201020R's SC-74A/SOT-753 package.

Compliance Status: The substitute must maintain RoHS compliance and MSL Level 1 rating for moisture sensitivity.

Parameter Comparison

Engineering Selection Recommendations

The QS5Y2FSTR from Rohm Semiconductor presents significant compatibility constraints when considered as a direct substitute for the DME201020R:

Voltage Rating Limitation: The QS5Y2FSTR maximum collector-emitter breakdown voltage of 50V falls below the DME201020R specification of 60V. This represents a 10V reduction in voltage headroom and disqualifies this part for applications requiring the full 60V rating.

Package Incompatibility: The QS5Y2FSTR utilizes SOT-23-5 Thin (TSOT-23-5) packaging, whereas the DME201020R employs SC-74A/SOT-753 packaging. These packages have different pin configurations, footprints, and physical dimensions, requiring PCB redesign for implementation.

Product Status Advantage: The QS5Y2FSTR maintains Active product status with 51,100 units in stock inventory, compared to the discontinued status of the DME201020R with limited remaining inventory of 781 units.

Compliance Alignment: Both parts maintain equivalent RoHS compliance (RoHS Compliant vs. ROHS3 Compliant) and MSL Level 1 moisture sensitivity ratings, ensuring environmental and handling compatibility.

Performance Margins: The QS5Y2FSTR exceeds specifications in current handling (3A vs. 500mA), power dissipation (500mW vs. 300mW), and transition frequency (320MHz/300MHz vs. 130MHz), providing performance headroom in these parameters.

Direct substitution of the QS5Y2FSTR for the DME201020R is not recommended without circuit redesign to accommodate the reduced voltage rating and package form factor change.

Frequently Asked Questions (FAQ)

Q: Can the QS5Y2FSTR directly replace the DME201020R on existing PCBs?

A: No. The QS5Y2FSTR uses SOT-23-5 Thin packaging while the DME201020R uses SC-74A/SOT-753 packaging. These packages have incompatible pin layouts and footprints, requiring PCB redesign and rework.

Q: What is the primary electrical limitation of the QS5Y2FSTR as a substitute?

A: The QS5Y2FSTR is rated for 50V maximum collector-emitter breakdown voltage, compared to the DME201020R's 60V rating. Applications operating at or near 60V will exceed the QS5Y2FSTR's voltage specification.

Q: Are both parts RoHS compliant?

A: Yes. The DME201020R is RoHS Compliant, and the QS5Y2FSTR is ROHS3 Compliant. Both meet RoHS environmental standards.

Q: What are the moisture sensitivity requirements for both parts?

A: Both the DME201020R and QS5Y2FSTR are rated MSL Level 1 (Unlimited), indicating no moisture sensitivity restrictions during storage and handling.

Q: Does the QS5Y2FSTR provide adequate current handling for the DME201020R application?

A: Yes. The QS5Y2FSTR is rated for 3A maximum collector current, exceeding the DME201020R's 500mA requirement by a factor of six.

Q: What is the frequency performance comparison?

A: The DME201020R operates at 130MHz transition frequency. The QS5Y2FSTR operates at 320MHz and 300MHz, providing significantly higher frequency capability.

Q: Are there inventory considerations between these parts?

A: The DME201020R is discontinued with 781 units remaining in stock. The QS5Y2FSTR is Active with 51,100 units in stock, providing superior long-term availability.

Q: What is the DC current gain difference between these parts?

A: The DME201020R specifies 120 minimum hFE at 150mA and 10V. The QS5Y2FSTR specifies 180 minimum hFE at 50mA and 3V, indicating higher current gain performance.