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BCP56TX Equivalent & Substitute Parts
Part Overview
The BCP56TX is an NPN bipolar junction transistor manufactured by Nexperia USA Inc., designed for general-purpose switching and amplification applications. This Surface Mount device in SOT-223 packaging operates at 80 V collector-emitter breakdown voltage with a maximum collector current of 1 A and maximum power dissipation of 1.8 W. The part is qualified to AEC-Q101 automotive standards and maintains Active product status. Equivalent and substitute parts are identified to support design flexibility, supply chain continuity, and application-specific performance requirements while maintaining electrical and mechanical compatibility.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Transistor Type | NPN | — |
| Voltage - Collector Emitter Breakdown (Max) | 80 | V |
| Current - Collector (Ic) (Max) | 1 | A |
| Vce Saturation (Max) @ Ib, Ic | 500mV @ 50mA, 500mA | — |
| Current - Collector Cutoff (Max) | 100 | nA |
| DC Current Gain (hFE) (Min) @ Ic, Vce | 63 @ 150mA, 2V | — |
| Power - Max | 1.8 | W |
| Frequency - Transition | 100 | MHz |
| Operating Temperature (TJ) | 150 | °C |
| Mounting Type | Surface Mount | — |
| Package / Case | TO-261-4, TO-261AA | — |
| Supplier Device Package | SOT-223 | — |
| Grade | Automotive | — |
| Qualification | AEC-Q101 | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitute parts for the BCP56TX are classified into two categories based on electrical parameter alignment:
Parametric Equivalents maintain identical electrical specifications across all critical parameters: 80 V collector-emitter breakdown voltage, 1 A maximum collector current, 500 mV saturation voltage at specified bias conditions, 100 nA collector cutoff current, 63 minimum DC current gain at 150 mA and 2 V, 1.8 W maximum power dissipation, 100 MHz transition frequency, and 150°C maximum junction temperature. These parts are direct functional replacements with no performance trade-offs.
Similar Parts share the same voltage, current, and saturation specifications but differ in one or more secondary parameters including transition frequency (130 MHz versus 100 MHz), maximum power dissipation (1.5 W or 1.6 W versus 1.8 W), DC current gain (40 or 100 versus 63), operating temperature range (−65°C to 150°C versus 0°C to 150°C), or manufacturer identity. Similar parts are suitable for applications where the specified parameter differences do not impact circuit performance.
All substitute parts maintain SOT-223 packaging, Surface Mount mounting type, and automotive-grade qualification where applicable.
Parameter Comparison
| Part Number | Manufacturer | Ic (Max) [A] | Vce Breakdown [V] | Vce Sat [mV] | hFE (Min) | Power [W] | Freq [MHz] | Temp [°C] | Grade | AEC-Q101 |
|---|---|---|---|---|---|---|---|---|---|---|
| BCP56TX | Nexperia USA Inc. | 1 | 80 | 500 | 63 | 1.8 | 100 | 150 | Automotive | Yes |
| BCP56-10TF | Nexperia USA Inc. | 1 | 80 | 500 | 63 | 1.8 | 100 | 150 | Automotive | Yes |
| BCP56-10TX | Nexperia USA Inc. | 1 | 80 | 500 | 63 | 1.8 | 100 | 150 | Automotive | Yes |
| BCP56TF | Nexperia USA Inc. | 1 | 80 | 500 | 63 | 1.8 | 100 | 150 | Automotive | Yes |
| BCP56-16 | ANBON SEMICONDUCTOR (INT'L) LIMITED | 1 | 80 | 500 | 100 | 1.6 | — | 150 | — | — |
| BCP56T3G | onsemi | 1 | 80 | 500 | 40 | 1.5 | 130 | −65 to 150 | — | — |
| SBCP56-10T1G | onsemi | 1 | 80 | 500 | 63 | 1.5 | 130 | −65 to 150 | Automotive | Yes |
| SBCP56-16T3G | onsemi | 1 | 80 | 500 | 100 | 1.5 | 130 | −65 to 150 | Automotive | Yes |
| SBCP56T3G | onsemi | 1 | 80 | 500 | 40 | 1.5 | 130 | −65 to 150 | Automotive | Yes |
Engineering Selection Recommendations
Parametric Equivalent Selection (Direct Replacement)
BCP56-10TF, BCP56-10TX, and BCP56TF are parametric equivalents manufactured by Nexperia USA Inc. with identical electrical specifications to the BCP56TX. All three parts maintain 1.8 W power dissipation, 100 MHz transition frequency, 63 minimum DC current gain, and 150°C maximum junction temperature. All are qualified to AEC-Q101 automotive standards and carry Active product status. These parts are suitable for direct substitution without circuit redesign.
Similar Part Selection (Application-Dependent)
SBCP56-10T1G and SBCP56-16T3G are manufactured by onsemi and qualified to AEC-Q101 automotive standards with Active product status. These parts feature 130 MHz transition frequency and extended operating temperature range (−65°C to 150°C) compared to the BCP56TX. Power dissipation is reduced to 1.5 W. SBCP56-10T1G maintains 63 minimum DC current gain matching the BCP56TX, while SBCP56-16T3G provides 100 minimum DC current gain. Selection between these parts depends on whether the higher transition frequency and extended temperature range provide circuit benefits that offset the reduced power rating.
BCP56T3G and SBCP56T3G are onsemi products with 130 MHz transition frequency and 1.5 W power dissipation. BCP56T3G carries no automotive qualification, while SBCP56T3G is AEC-Q101 qualified. Both feature 40 minimum DC current gain, which is lower than the BCP56TX specification. These parts are suitable only for applications where lower current gain is acceptable.
BCP56-16 manufactured by ANBON SEMICONDUCTOR (INT'L) LIMITED shares voltage, current, and saturation specifications but provides 100 minimum DC current gain and 1.6 W power dissipation. Transition frequency is not specified. This part carries no automotive qualification or AEC-Q101 certification.
Compliance and Certification
All recommended substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating. Automotive-grade applications requiring AEC-Q101 qualification should be limited to Nexperia USA Inc. parametric equivalents (BCP56-10TF, BCP56-10TX, BCP56TF) or onsemi automotive-qualified parts (SBCP56-10T1G, SBCP56-16T3G, SBCP56T3G).
Frequently Asked Questions (FAQ)
Q: Can BCP56-10TF, BCP56-10TX, and BCP56TF be used interchangeably with BCP56TX?
A: Yes. These three Nexperia USA Inc. parts are parametric equivalents with identical electrical specifications including 80 V breakdown voltage, 1 A collector current, 1.8 W power dissipation, 100 MHz transition frequency, and 63 minimum DC current gain. All are AEC-Q101 qualified and maintain Active product status. Direct substitution is supported without circuit modification.
Q: What is the difference between parametric equivalents and similar parts?
A: Parametric equivalents maintain all electrical specifications of the BCP56TX. Similar parts share core voltage and current ratings but differ in secondary parameters such as transition frequency, power dissipation, DC current gain, or operating temperature range. Similar parts require application-level evaluation to confirm suitability.
Q: Can I use SBCP56-10T1G in place of BCP56TX?
A: SBCP56-10T1G is suitable for applications where the following differences are acceptable: 130 MHz transition frequency (versus 100 MHz), 1.5 W power dissipation (versus 1.8 W), and extended operating temperature range (−65°C to 150°C versus 0°C to 150°C). DC current gain remains at 63 minimum. The part is AEC-Q101 qualified and maintains automotive-grade status. Thermal design must account for the reduced power rating.
Q: Why do some substitute parts have different DC current gain specifications?
A: DC current gain (hFE) is a transistor parameter that varies within manufacturing tolerances. The BCP56TX specifies 63 minimum at 150 mA and 2 V. Similar parts from different manufacturers or product lines may specify different minimum values (40 or 100). Lower gain values require higher base current to achieve the same collector current; higher gain values provide greater current amplification. Circuit design must account for the specified gain range.
Q: Are all substitute parts available in SOT-223 packaging?
A: Yes. All substitute parts listed are supplied in SOT-223 packaging (TO-261-4, TO-261AA case designation) with Surface Mount mounting type. Package footprint and pinout are identical across all parts.
Q: Which substitute parts are suitable for automotive applications?
A: Nexperia USA Inc. parametric equivalents (BCP56-10TF, BCP56-10TX, BCP56TF) and onsemi automotive-qualified parts (SBCP56-10T1G, SBCP56-16T3G, SBCP56T3G) carry AEC-Q101 qualification and Automotive grade designation. BCP56-16 and BCP56T3G do not carry automotive qualification and are not suitable for automotive applications requiring AEC-Q101 compliance.
Q: What is the impact of reduced power dissipation in similar parts?
A: Similar parts from onsemi (BCP56T3G, SBCP56-10T1G, SBCP56-16T3G, SBCP56T3G) specify 1.5 W maximum power dissipation compared to 1.8 W for the BCP56TX. This 0.3 W reduction requires thermal design review to confirm that circuit operating conditions do not exceed the lower power limit. Applications with high duty cycle or continuous operation at maximum current may require thermal management adjustments.
Q: Can BCP56-16 be used as a substitute?
A: BCP56-16 shares voltage, current, and saturation specifications with the BCP56TX but differs in DC current gain (100 versus 63) and power dissipation (1.6 W versus 1.8 W). Transition frequency is not specified. The part carries no automotive qualification or AEC-Q101 certification. Use is limited to non-automotive applications where the higher current gain and unspecified frequency response are acceptable.
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