2SD1012G-SPA-AC Equivalent & Substitute Parts

Part Overview

The 2SD1012G-SPA-AC is an NPN bipolar junction transistor manufactured by onsemi, rated for 15 V collector-emitter breakdown voltage and 700 mA maximum collector current. This through-hole mounted device operates at a transition frequency of 250 MHz with a maximum power dissipation of 250 mW. The product is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and production requirements.

Substiute Parts

2SD1012G-SPA-AC

onsemiIn Stock: 9432SD1012G-SPA-AC Datasheet

Current PartRFQ

15C02CH-TL-E

onsemiIn Stock: 429315C02CH-TL-E Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2SD1012G-SPA-AC is determined by electrical parameter compatibility within the NPN transistor category. The primary substitution candidate, 15C02CH-TL-E, maintains the same collector-emitter breakdown voltage specification (15 V) and exceeds the minimum current gain requirement (300 @ 50mA, 2V versus 280 @ 50mA, 2V). The substitute part demonstrates superior maximum collector current (1 A versus 700 mA) and higher power dissipation capability (700 mW versus 250 mW), establishing it as a functionally capable alternative.

Key parameters governing substitution eligibility:

• Transistor type: NPN (required match)
• Voltage - Collector Emitter Breakdown: minimum 15 V
• Current - Collector (Ic) (Max): minimum 700 mA
• DC Current Gain (hFE): minimum 280 @ 50mA, 2V
• Power - Max: minimum 250 mW

The 15C02CH-TL-E satisfies all electrical requirements. However, the mounting type differs: the main part uses through-hole configuration while the substitute employs surface-mount technology, requiring circuit board redesign for physical implementation.

Parameter Comparison

Engineering Selection Recommendations

The 15C02CH-TL-E functions as an electrical equivalent to the 2SD1012G-SPA-AC within the specified parameter envelope. Both devices are classified as obsolete products and share identical REACH compliance status and export control classification (EAR99). Both maintain unlimited moisture sensitivity level (MSL 1), eliminating moisture-related handling constraints.

Selection of the 15C02CH-TL-E requires evaluation of mounting technology compatibility. The substitute part's surface-mount package (SC-96, 3-CPH) necessitates circuit board layout modification from the original through-hole design (3-SIP). The substitute provides enhanced electrical performance margins: higher maximum collector current (1 A versus 700 mA), increased power dissipation capability (700 mW versus 250 mW), superior transition frequency (440 MHz versus 250 MHz), and lower collector cutoff current (100 nA versus 1 µA).

The substitute part's higher operating temperature rating (150°C versus 125°C) and improved DC current gain (300 versus 280 @ 50mA, 2V) provide additional design margin. Vce saturation characteristics differ; the substitute exhibits higher saturation voltage (280 mV versus 80 mV at specified test conditions), which may affect switching speed in saturation-mode applications.

Frequently Asked Questions (FAQ)

Q: Can the 15C02CH-TL-E directly replace the 2SD1012G-SPA-AC in existing circuit boards?

A: Electrical substitution is valid; however, physical replacement requires circuit board redesign. The main part uses through-hole mounting (3-SIP package), while the substitute employs surface-mount technology (SC-96 package). Direct socket substitution is not possible without board modification.

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

A: The 15C02CH-TL-E exceeds the 2SD1012G-SPA-AC in maximum collector current (1 A versus 700 mA), power dissipation (700 mW versus 250 mW), and transition frequency (440 MHz versus 250 MHz). Vce saturation voltage is higher in the substitute (280 mV versus 80 mV at specified test conditions). Both maintain identical 15 V collector-emitter breakdown voltage and similar DC current gain characteristics.

Q: Are there compliance or regulatory differences between these parts?

A: Both parts share identical REACH compliance status (REACH Unaffected), export control classification (EAR99), and moisture sensitivity level (MSL 1). No regulatory barriers exist to substitution from a compliance perspective.

Q: Why is the Vce saturation voltage higher in the substitute part?

A: The 15C02CH-TL-E exhibits higher saturation voltage (280 mV @ 20mA, 400mA) compared to the 2SD1012G-SPA-AC (80 mV @ 10mA, 100mA). This difference reflects different semiconductor process technology and test conditions. Applications requiring minimal saturation voltage drop should evaluate this parameter against circuit requirements.

Q: What is the significance of the lower collector cutoff current in the substitute part?

A: The 15C02CH-TL-E demonstrates lower collector cutoff current (100 nA versus 1 µA), indicating reduced leakage current in the off state. This characteristic improves circuit performance in applications sensitive to leakage, such as precision analog circuits or low-power switching applications.

Q: Both parts are listed as obsolete. Does this affect substitution validity?

A: Obsolete status applies to both the main part and the substitute. Substitution remains valid from an electrical and compliance standpoint. Obsolete classification indicates discontinued manufacturing; however, both parts maintain identical regulatory compliance and handling requirements.