DMC261030R Equivalent & Substitute Parts

Part Overview

The DMC261030R is a pre-biased dual NPN bipolar transistor (BJT) manufactured by Panasonic Electronic Components, designed for surface mount applications in the Mini5-G3-B package. This component integrates two NPN transistors with internal biasing resistors, enabling simplified circuit design for switching and amplification applications. The device is rated for 50V collector-emitter breakdown voltage, 100mA maximum collector current, and 300mW power dissipation.

The DMC261030R has been discontinued at DiGi Electronics. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this component.

Substiute Parts

DMC261030R

Panasonic Electronic ComponentsIn Stock: 3331DMC261030R Datasheet

Current PartRFQ

UMH2NFHATN

Rohm SemiconductorIn Stock: 1888UMH2NFHATN Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the DMC261030R is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Transistor configuration: 2 NPN - Pre-Biased (Dual)
• Maximum collector current: 100mA
• Maximum collector-emitter breakdown voltage: 50V
• Internal base resistor (R1): 47kOhms
• Internal emitter-base resistor (R2): 47kOhms
• Maximum collector cutoff current: 500nA
• Mounting type: Surface Mount
• RoHS compliance status

Acceptable Variation Parameters:

• DC current gain (hFE): Minimum value of 68 or higher satisfies the 80 minimum specification of the main part
• Vce saturation: Values up to 300mV are acceptable for the specified test conditions
• Power dissipation: Minimum 150mW is acceptable for applications within the 300mW rating
• Package form factor: Different surface mount packages (SC-88, SOT-363, UMT6) are acceptable if pin configuration and footprint compatibility are verified
• Frequency transition: Additional frequency specifications do not disqualify a substitute

The UMH2NFHATN from Rohm Semiconductor meets all mandatory matching parameters and is classified as an active product with automotive-grade qualification (AEC-Q101).

Parameter Comparison

Engineering Selection Recommendations

UMH2NFHATN as Primary Substitute:

The UMH2NFHATN from Rohm Semiconductor is the qualified substitute for the DMC261030R. This component maintains electrical equivalence across all critical parameters: dual NPN pre-biased configuration, 100mA collector current rating, 50V breakdown voltage, and matching internal resistor values (47kOhms base and emitter-base).

The UMH2NFHATN carries active product status, ensuring ongoing availability and supply chain support. The device holds AEC-Q101 automotive qualification and ROHS3 compliance, meeting or exceeding the regulatory requirements of the original part.

Package Consideration:

The UMH2NFHATN is supplied in the UMT6 package (6-TSSOP, SC-88, SOT-363), which differs from the DMC261030R Mini5-G3-B package (SC-74A, SOT-753). PCB layout and footprint modifications are required for implementation. Pin configuration and electrical connectivity must be verified against application schematics prior to design integration.

Power Dissipation:

The UMH2NFHATN maximum power rating of 150mW is lower than the DMC261030R 300mW specification. Applications operating at or near the 300mW limit of the original part require thermal analysis to confirm the substitute operates within safe operating conditions.

Electrical Performance:

The UMH2NFHATN DC current gain minimum of 68 is acceptable for applications designed around the DMC261030R minimum specification of 80. Vce saturation of 300mV (versus 250mV for the original) represents a 20% increase and is within acceptable tolerance for most switching applications.

Frequently Asked Questions (FAQ)

Q: Can the UMH2NFHATN directly replace the DMC261030R without circuit modification?

A: Electrical substitution is valid based on matching transistor configuration, current ratings, voltage ratings, and internal resistor values. However, package differences (UMT6 versus Mini5-G3-B) require PCB footprint redesign. Pin-to-pin connectivity must be verified against the application schematic.

Q: What is the significance of the different DC current gain values (80 versus 68)?

A: The UMH2NFHATN minimum hFE of 68 is lower than the DMC261030R specification of 80. For applications where current gain is a critical design parameter, circuit performance should be analyzed to confirm acceptable operation at the lower gain value. Most switching applications tolerate this variation.

Q: Does the lower power rating of the UMH2NFHATN (150mW versus 300mW) affect substitution?

A: The lower power rating requires thermal analysis for applications operating near the original 300mW specification. If the application dissipates less than 150mW, substitution is straightforward. Applications approaching or exceeding 150mW dissipation require verification that the substitute operates within safe thermal limits.

Q: Are there package compatibility issues between the two parts?

A: Yes. The DMC261030R uses the Mini5-G3-B package (SC-74A, SOT-753), while the UMH2NFHATN uses the UMT6 package (6-TSSOP, SC-88, SOT-363). These are different physical packages requiring different PCB footprints. Pin assignments must be cross-referenced to ensure correct circuit connectivity.

Q: What compliance certifications does the UMH2NFHATN carry?

A: The UMH2NFHATN is ROHS3 compliant and holds AEC-Q101 automotive qualification. These certifications meet or exceed the RoHS compliance of the original DMC261030R and provide additional assurance for automotive and regulated applications.

Q: Is the UMH2NFHATN available in the same packaging format as the DMC261030R?

A: No. The UMH2NFHATN is supplied in Tape & Reel (TR) format in the UMT6 package. The DMC261030R was available in the Mini5-G3-B package. Packaging format and physical package differ, requiring design and procurement adjustments.

Q: What is the product status difference between these two parts?

A: The DMC261030R is discontinued at DiGi Electronics, limiting future availability. The UMH2NFHATN is an active product from Rohm Semiconductor, ensuring continued supply and support for ongoing production requirements.