2SD1005-W-TP Equivalent & Substitute Parts

Part Overview

The 2SD1005-W-TP is a Surface Mount NPN Bipolar Junction Transistor manufactured by Micro Commercial Co, rated for 80V collector-emitter breakdown voltage and 1A maximum collector current. This device is classified as Obsolete, indicating it is no longer in active production. The transition frequency of 160MHz and 500mW power dissipation rating make it suitable for general-purpose switching and amplification applications in consumer and industrial electronics.

Due to its obsolete status, sourcing original 2SD1005-W-TP units may present supply chain challenges. Identifying equivalent substitute parts with matching electrical and mechanical specifications ensures design continuity and production feasibility for applications currently utilizing this transistor.

Substiute Parts

2SD1005-W-TP

Micro Commercial CoIn Stock: 10902SD1005-W-TP Datasheet

Current PartRFQ

2SD1898T100R

Rohm SemiconductorIn Stock: 1804952SD1898T100R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2SD1005-W-TP is determined by strict equivalence across the following electrical and mechanical parameters:

Critical Matching Parameters:

• Transistor Type: NPN configuration
• Maximum Collector Current (Ic): 1A
• Maximum Collector-Emitter Breakdown Voltage (Vce): 80V
• Mounting Type: Surface Mount
• Package / Case: TO-243AA (SOT-89 equivalent)
• RoHS Compliance: ROHS3 Compliant

Secondary Consideration Parameters:

• Power Dissipation Rating: 500mW or higher
• Transition Frequency: 160MHz or higher
• Operating Temperature Range: -55°C to 150°C or equivalent

The 2SD1898T100R manufactured by Rohm Semiconductor meets all critical matching parameters and qualifies as a direct electrical and mechanical substitute. Both devices share identical voltage and current ratings, surface mount configuration, and TO-243AA package specification. Compliance certifications align across both parts.

Parameter Comparison

Engineering Selection Recommendations

2SD1898T100R as Primary Substitute:

The 2SD1898T100R is electrically and mechanically compatible with the 2SD1005-W-TP across all critical parameters. Both devices are rated for 80V collector-emitter breakdown voltage, 1A maximum collector current, and surface mount TO-243AA packaging. RoHS3 compliance is maintained in both parts.

The 2SD1898T100R demonstrates superior performance in power dissipation (2W versus 500mW) and DC current gain (180 versus 90), providing design margin in applications requiring higher gain or thermal headroom. The lower saturation voltage (400mV versus 500mV) offers improved efficiency in switching applications.

The 2SD1898T100R is classified as "Not For New Designs" by Rohm Semiconductor, indicating it is in mature production status with stable supply availability. This status provides better long-term sourcing reliability compared to the obsolete 2SD1005-W-TP.

Frequency Consideration:

The 2SD1005-W-TP operates at 160MHz transition frequency, while the 2SD1898T100R operates at 100MHz. Applications requiring operation above 100MHz must evaluate circuit performance with the reduced transition frequency of the substitute part.

Temperature Range Consideration:

The 2SD1005-W-TP specifies a lower operating temperature limit of -55°C, while the 2SD1898T100R specifies only a maximum junction temperature of 150°C without explicit lower limit documentation. Applications requiring operation below -55°C require verification against the 2SD1898T100R datasheet.

Frequently Asked Questions (FAQ)

Q: Can the 2SD1898T100R directly replace the 2SD1005-W-TP in existing designs?

A: The 2SD1898T100R is electrically and mechanically compatible with the 2SD1005-W-TP for applications operating within 100MHz frequency range and at or above -55°C. Both devices share identical voltage and current ratings, package configuration, and RoHS compliance. Circuit performance must be evaluated for applications sensitive to transition frequency or operating temperature extremes.

Q: What are the key electrical differences between these parts?

A: The primary electrical differences are transition frequency (160MHz for 2SD1005-W-TP versus 100MHz for 2SD1898T100R), power dissipation rating (500mW versus 2W), and DC current gain (90 versus 180). The 2SD1898T100R exhibits lower saturation voltage, which improves efficiency in switching applications. The 2SD1005-W-TP has lower collector cutoff current (100nA versus 1µA).

Q: Are both parts RoHS compliant?

A: Yes. Both the 2SD1005-W-TP and 2SD1898T100R are ROHS3 Compliant, meeting current environmental and hazardous substance restrictions.

Q: What is the significance of the product status difference?

A: The 2SD1005-W-TP is classified as Obsolete, indicating discontinued production. The 2SD1898T100R is classified as "Not For New Designs," indicating mature production status with stable availability. For new production or long-term supply requirements, the 2SD1898T100R offers superior sourcing reliability.

Q: Are the packages identical?

A: Yes. Both devices use the TO-243AA package in Surface Mount configuration. The 2SD1005-W-TP is supplied in SOT-89 format, and the 2SD1898T100R is supplied in MPT3 format, both of which are equivalent TO-243AA package specifications. PCB footprints are compatible.

Q: Which part should be selected for high-frequency applications?

A: The 2SD1005-W-TP with 160MHz transition frequency is suitable for applications requiring operation above 100MHz. The 2SD1898T100R with 100MHz transition frequency is suitable for applications operating at or below 100MHz. Circuit simulation or testing is required to determine the maximum operating frequency for specific application topologies.

Q: What inventory status should influence the selection decision?

A: The 2SD1005-W-TP has 1,063 pieces in stock, while the 2SD1898T100R has 180,400 pieces in stock. For applications requiring immediate delivery or long-term production quantities, the 2SD1898T100R offers significantly greater availability.