BC817K-16HVL Equivalent & Substitute Parts

Part Overview

The BC817K-16HVL is an NPN bipolar junction transistor manufactured by Nexperia USA Inc., classified as an active product with automotive-grade qualification (AEC-Q101). This surface mount transistor operates at 45 V collector-emitter breakdown voltage with a maximum collector current of 500 mA and is housed in a TO-236AB package (SOT-23-3). The part is ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Substitute parts are necessary when the primary part number becomes unavailable, when alternative manufacturers are required for supply chain diversification, or when design flexibility permits selection from equivalent electrical specifications within the same package family.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Voltage - Collector Emitter Breakdown (Max)	45	V
Current - Collector (Ic) (Max)	500	mA
Vce Saturation (Max) @ Ib, Ic	700mV @ 50mA, 500mA	—
DC Current Gain (hFE) (Min) @ Ic, Vce	100 @ 100mA, 1V	—
Power - Max	350	mW
Frequency - Transition	100	MHz
Operating Temperature (TJ)	150	°C
Package / Case	TO-236-3, SC-59, SOT-23-3	—
Grade	Automotive	—
Qualification	AEC-Q101	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the BC817K-16HVL is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

Transistor Type: NPN
Voltage - Collector Emitter Breakdown (Max): 45 V or greater
Current - Collector (Ic) (Max): 500 mA or greater
Package / Case: TO-236-3, SC-59, SOT-23-3 (surface mount)
Vce Saturation (Max) @ Ib, Ic: 700mV @ 50mA, 500mA or lower
DC Current Gain (hFE) (Min) @ Ic, Vce: 100 @ 100mA, 1V or greater
Frequency - Transition: 100 MHz or greater
Power - Max: 300 mW or greater
RoHS Status: ROHS3 Compliant

Substitute parts are grouped into two categories:

Parametric Equivalent: Parts with identical electrical specifications and the same base product number (BC817), differing only in packaging format or manufacturer designation.

Similar Parts: Parts meeting or exceeding all critical electrical parameters with the same package family, allowing functional substitution in circuit applications where the specified parameters are met or exceeded.

Parameter Comparison

Part Number	Manufacturer	Vce Breakdown (V)	Ic Max (mA)	hFE Min @ 100mA, 1V	Power Max (mW)	Frequency (MHz)	Package	Grade	AEC-Q101
BC817K-16HVL	Nexperia USA Inc.	45	500	100	350	100	TO-236AB	Automotive	Yes
BC817K-16HR	Nexperia USA Inc.	45	500	100	350	100	TO-236AB	Automotive	Yes
50C02CH-TL-E	onsemi	50	500	300	700	500	3-CPH	—	—
BC817-16 RFG	Taiwan Semiconductor Corporation	45	500	100	300	100	SOT-23	—	—
BC817-16LT3G	onsemi	45	500	100	300	100	SOT-23-3	—	—
BC817-25 RFG	Taiwan Semiconductor Corporation	45	500	160	300	100	SOT-23	—	—
BC817-40 RFG	Taiwan Semiconductor Corporation	45	500	250	300	100	SOT-23	—	—
BC817-40Q-13-F	Diodes Incorporated	45	500	250	310	100	SOT-23-3	Automotive	Yes
BC817-40Q-7-F	Diodes Incorporated	45	500	250	310	100	SOT-23-3	Automotive	Yes
MMBT2222A RFG	Taiwan Semiconductor Corporation	40	600	100	300	300	SOT-23	—	—
MMBTA05-7-F	Diodes Incorporated	60	500	100	300	100	SOT-23-3	—	—

Engineering Selection Recommendations

Direct Parametric Equivalent:

BC817K-16HR (Nexperia USA Inc.) is the direct parametric equivalent to BC817K-16HVL, offering identical electrical specifications, automotive grade qualification, and AEC-Q101 certification. This part maintains the same 350 mW power rating and TO-236AB packaging. Selection of this substitute is appropriate for applications requiring no design modification.

Automotive-Grade Alternatives with AEC-Q101 Certification:

BC817-40Q-13-F and BC817-40Q-7-F (Diodes Incorporated) are automotive-qualified alternatives meeting AEC-Q101 standards. Both parts maintain 45 V breakdown voltage, 500 mA collector current, and 100 MHz transition frequency. These parts feature higher DC current gain (250 @ 100mA, 1V) and slightly elevated power rating (310 mW). The primary difference is packaging format: BC817-40Q-13-F is supplied in Tape & Reel format, while BC817-40Q-7-F is supplied in Cut Tape & Digi-Reel format.

General-Purpose Alternatives:

BC817-16LT3G (onsemi), BC817-16 RFG, BC817-25 RFG, and BC817-40 RFG (Taiwan Semiconductor Corporation) meet the core electrical requirements of 45 V breakdown, 500 mA collector current, and 100 MHz transition frequency. These parts are supplied in SOT-23 or SOT-23-3 packages and lack automotive qualification. Selection is appropriate for non-automotive applications where AEC-Q101 certification is not required.

Enhanced Performance Alternative:

50C02CH-TL-E (onsemi) exceeds the primary specifications with 50 V breakdown voltage, 700 mW power rating, and 500 MHz transition frequency. This part is suitable for applications requiring higher frequency performance or enhanced voltage margin, though it lacks automotive qualification.

Limited Voltage Margin Alternative:

MMBT2222A RFG (Taiwan Semiconductor Corporation) provides 40 V breakdown voltage (5 V below the BC817K-16HVL specification) and 600 mA collector current. This part offers 300 MHz transition frequency and is suitable only for applications where the reduced voltage margin is acceptable.

Frequently Asked Questions (FAQ)

Q: Can BC817K-16HR be used as a direct replacement for BC817K-16HVL?

A: Yes. BC817K-16HR is a parametric equivalent with identical electrical specifications, automotive grade, and AEC-Q101 qualification. No circuit modification is required.

Q: What is the difference between BC817-40Q-13-F and BC817-40Q-7-F?

A: Both parts are electrically identical with 45 V breakdown, 500 mA collector current, and AEC-Q101 certification. The difference is packaging format: BC817-40Q-13-F is supplied in Tape & Reel (TR), while BC817-40Q-7-F is supplied in Cut Tape (CT) & Digi-Reel format.

Q: Are non-automotive-qualified parts suitable for automotive applications?

A: Non-automotive-qualified parts (those lacking AEC-Q101 certification) do not meet automotive industry standards. Use of such parts in automotive applications requires explicit design approval and risk assessment.

Q: Can MMBT2222A RFG replace BC817K-16HVL?

A: MMBT2222A RFG has a 40 V breakdown voltage specification, which is 5 V below the BC817K-16HVL requirement. Substitution is not recommended for applications requiring the full 45 V rating.

Q: What is the significance of the higher DC current gain in BC817-40Q variants?

A: BC817-40Q-13-F and BC817-40Q-7-F feature DC current gain of 250 @ 100mA, 1V, compared to 100 for the BC817K-16HVL. Higher current gain reduces base drive requirements and may improve circuit efficiency, but does not affect voltage or current ratings.

Q: Is 50C02CH-TL-E suitable for direct substitution?

A: 50C02CH-TL-E meets all critical electrical parameters and exceeds several specifications (50 V breakdown, 700 mW power, 500 MHz frequency). However, it lacks automotive qualification. Substitution is appropriate only for non-automotive applications or where enhanced performance specifications are beneficial.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed in this reference are ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Q: What packaging formats are available for BC817 variants?

A: BC817 variants are available in TO-236AB (Nexperia), SOT-23 (Taiwan Semiconductor Corporation), and SOT-23-3 (onsemi, Diodes Incorporated) packages. All are mechanically compatible with TO-236-3, SC-59, SOT-23-3 footprints.

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