2SD1805G-TL-E Equivalent & Substitute Parts

Part Overview

The 2SD1805G-TL-E is an NPN bipolar junction transistor manufactured by onsemi, designed for general-purpose switching and amplification applications. This device features a maximum collector current of 5 A, collector-emitter breakdown voltage of 20 V, and a maximum power dissipation of 1 W in a surface mount TP-FA package. The 2SD1805G-TL-E is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and component procurement.

Substiute Parts

2SD1805G-TL-E

onsemiIn Stock: 44582SD1805G-TL-E Datasheet

Current PartRFQ

2SD1805F-TL-E

onsemiIn Stock: 501962SD1805F-TL-E Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2SD1805G-TL-E is determined by electrical and mechanical parameter equivalence. The primary substitute, 2SD1805F-TL-E, shares identical specifications across all critical parameters: NPN transistor type, 5 A maximum collector current, 20 V collector-emitter breakdown voltage, 500mV saturation voltage at specified conditions, 100nA collector cutoff current, 1 W maximum power dissipation, 120MHz transition frequency, 150°C maximum operating temperature, and identical surface mount TP-FA packaging. Both devices are RoHS3 compliant with MSL 1 rating.

The key parameters enabling substitution are:

• Transistor Type: NPN
• Current - Collector (Ic) (Max): 5 A
• Voltage - Collector Emitter Breakdown (Max): 20 V
• Vce Saturation (Max) @ Ib, Ic: 500mV @ 60mA, 3A
• Current - Collector Cutoff (Max): 100nA (ICBO)
• Power - Max: 1 W
• Frequency - Transition: 120MHz
• Operating Temperature (TJ): 150°C
• Package / Case: TO-252-3, DPAK (2 Leads + Tab), SC-63

Parameter Comparison

Engineering Selection Recommendations

The 2SD1805F-TL-E is the direct substitute for the obsolete 2SD1805G-TL-E. Both devices are manufactured by onsemi and maintain electrical and mechanical parameter equivalence across all critical specifications. The 2SD1805F-TL-E is currently in active production status with significantly higher inventory availability (50,100 pieces) compared to the 2SD1805G-TL-E (4,400 pieces).

Both parts maintain identical compliance certifications: ROHS3 compliance, MSL 1 rating, REACH unaffected status, and EAR99 ECCN classification. The packaging format remains consistent as TO-252-3 DPAK surface mount, ensuring direct PCB compatibility.

The DC current gain (hFE) specification differs between the two parts: 280 minimum at 500mA, 2V for the 2SD1805G-TL-E versus 160 minimum at 500mA, 2V for the 2SD1805F-TL-E. This difference reflects manufacturing variation within the same device family and does not affect substitution eligibility for applications designed to the 2SD1805 base product specifications.

Frequently Asked Questions (FAQ)

Q: Can the 2SD1805F-TL-E directly replace the 2SD1805G-TL-E in existing designs?

A: Yes. Both devices share identical electrical ratings (5 A collector current, 20 V breakdown voltage, 1 W power dissipation, 120MHz transition frequency) and identical surface mount TP-FA packaging. Pin configuration and PCB footprint compatibility are maintained.

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

A: The 2SD1805G-TL-E specifies a minimum hFE of 280 at 500mA and 2V, while the 2SD1805F-TL-E specifies a minimum hFE of 160 at the same conditions. Both values fall within the acceptable range for the 2SD1805 base product family. Designs should be evaluated against the lower hFE specification (160) to ensure compatibility with the substitute part.

Q: Are there packaging differences between the 2SD1805G-TL-E and 2SD1805F-TL-E?

A: No. Both parts use identical TO-252-3 DPAK surface mount packaging with 2 leads plus tab (SC-63). The supplier device package designation TP-FA is identical for both parts.

Q: What is the product status difference, and does it affect substitution?

A: The 2SD1805G-TL-E is classified as obsolete, while the 2SD1805F-TL-E is active production. The active status of the 2SD1805F-TL-E ensures ongoing availability and supply chain continuity for new designs and production runs.

Q: Are both parts RoHS compliant?

A: Yes. Both the 2SD1805G-TL-E and 2SD1805F-TL-E are ROHS3 compliant with MSL 1 (unlimited moisture sensitivity level), ensuring compatibility with lead-free manufacturing processes and environmental regulations.

Q: What is the inventory status for each part?

A: The 2SD1805G-TL-E has 4,400 pieces in stock, while the 2SD1805F-TL-E has 50,100 pieces in stock. The significantly higher inventory of the substitute part supports long-term procurement planning.