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2SA2151 Equivalent & Substitute Parts Reference
Part Overview
The 2SA2151 is a PNP bipolar junction transistor (BJT), designed for high-voltage, high-current applications, with a collector-emitter breakdown voltage of 200 V, a maximum collector current of 15 A, and a power dissipation of 160 W. This device is packaged in a through-hole TO-3P-3 case and supports a transition frequency of 20MHz. The 2SA2151 has been designated as Obsolete. Selecting comparable substitute parts is necessary to maintain operational continuity where the original component is no longer available.
Substiute Parts
Key Parameters
| Parameter | 2SA2151 |
|---|---|
| Transistor Type | PNP |
| Voltage - Collector Emitter Breakdown (Max) | 200 V |
| Current - Collector (Ic) (Max) | 15 A |
| Power - Max | 160 W |
| Frequency - Transition | 20MHz |
| DC Current Gain (hFE) (Min) @ Ic, Vce | 50 @ 3A, 4V |
| Current - Collector Cutoff (Max) | 10µA (ICBO) |
| Vce Saturation (Max) @ Ib, Ic | 500mV @ 500mA, 5A |
| Operating Temperature | 150°C (TJ) |
| Package / Case | TO-3P-3, SC-65-3 |
| Mounting Type | Through Hole |
| RoHS Status | RoHS Compliant |
| Product Status | Obsolete |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitute parts for the 2SA2151 are identified strictly by matching the explicit allowed parameters: transistor type (PNP), collector-emitter breakdown voltage (minimum 200 V), collector current (minimum 15 A), power handling, DC current gain, transition frequency, operating temperature, package/case compatibility (TO-3P-3), mounting type (through hole), status, and RoHS/Moisture Sensitivity compliance. Only parts fully conforming to these characteristics are grouped as substitutes.
Parameter Comparison
| Parameter | 2SA2151 | 2SA1294 |
|---|---|---|
| Manufacturer | Sanken Electric USA Inc. | Sanken Electric USA Inc. |
| Transistor Type | PNP | PNP |
| Voltage - Collector Emitter Breakdown (Max) | 200 V | 230 V |
| Current - Collector (Ic) (Max) | 15 A | 15 A |
| Power - Max | 160 W | 130 W |
| Frequency - Transition | 20MHz | 35MHz |
| DC Current Gain (hFE) (Min) @ Ic, Vce | 50 @ 3A, 4V | 50 @ 5A, 4V |
| Current - Collector Cutoff (Max) | 10µA (ICBO) | 100µA (ICBO) |
| Vce Saturation (Max) @ Ib, Ic | 500mV @ 500mA, 5A | 2V @ 500mA, 5A |
| Operating Temperature | 150°C (TJ) | 150°C (TJ) |
| Package / Case | TO-3P-3, SC-65-3 | TO-3P-3, SC-65-3 |
| Mounting Type | Through Hole | Through Hole |
| RoHS Status | RoHS Compliant | ROHS3 Compliant |
| Product Status | Obsolete | Active |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
The 2SA2151 is classified as Obsolete, while the 2SA1294 is Active and also RoHS/ROHS3 Compliant. Both devices conform to Moisture Sensitivity Level 1 (Unlimited). For applications requiring continued supply with current compliance and availability, selection of the 2SA1294 provides status and regulatory alignment with the original part requirements.
Frequently Asked Questions (FAQ)
Q: What criteria are used to determine if a transistor is a suitable substitute for the 2SA2151?
A: Substitution is strictly determined by matching transistor type (PNP), voltage and current ratings, power dissipation, DC current gain, transition frequency, maximum operating temperature, package/case, mounting type, RoHS status, and moisture sensitivity level.
Q: Are substitute parts guaranteed to fit in the same board position as the 2SA2151?
A: Substitute parts provided here use the identical TO-3P-3, SC-65-3 package and through-hole mounting type, ensuring dimensional and mechanical compatibility.
Q: How does the RoHS status affect substitute selection?
A: Only RoHS or ROHS3 Compliant alternatives are listed, matching the compliance requirements of the 2SA2151.
Q: Is there a difference in product status between the 2SA2151 and suggested substitutes?
A: The 2SA2151 is Obsolete, while the 2SA1294 is Active, which directly affects current availability for engineering designs.
Q: Can these substitute parts be used interchangeably in all applications?
A: Substitute parts are grouped strictly based on publicly provided electrical parameters and package compatibility with the 2SA2151. Only parameters explicitly provided are considered.
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