BC807-40-7 PNP Bipolar Junction Transistor Equivalent & Substitute Parts

Part Overview

The BC807-40-7 is a PNP bipolar junction transistor manufactured by Diodes Incorporated, designed for general-purpose switching and amplification applications. This device operates at 45 V collector-emitter breakdown voltage with a maximum collector current of 500 mA and 310 mW power dissipation in a surface-mount SOT-23-3 package.

The BC807-40-7 is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives. Substitute parts must maintain electrical compatibility across critical parameters including collector current rating, breakdown voltage, saturation characteristics, and thermal operating range to ensure direct circuit replacement without redesign.

Key Parameters

Parameter	BC807-40-7 Specification
Transistor Type	PNP
Current - Collector (Ic) Max	500 mA
Voltage - Collector Emitter Breakdown (Max)	45 V
Vce Saturation (Max) @ Ib, Ic	700 mV @ 50 mA, 500 mA
Current - Collector Cutoff (Max)	100 nA
DC Current Gain (hFE) Min @ Ic, Vce	250 @ 100 mA, 1 V
Power - Max	310 mW
Frequency - Transition	100 MHz
Operating Temperature Range	-55°C to 150°C (TJ)
Mounting Type	Surface Mount
Package / Case	TO-236-3, SC-59, SOT-23-3
RoHS Status	RoHS Non-Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the BC807-40-7 are classified into two categories based on electrical and mechanical compatibility:

Direct Electrical Equivalents (Full Parameter Match): Parts maintaining identical or superior ratings across all critical parameters: 500 mA collector current, 45 V minimum breakdown voltage, 700 mV saturation voltage at specified bias conditions, 100 MHz transition frequency, and -55°C to 150°C operating range. These parts are pin-compatible in SOT-23-3 packaging and require no circuit modifications.

Parametric Equivalents (Functional Compatibility): Parts with minor deviations in non-critical parameters such as transition frequency, power dissipation, or DC current gain, provided collector current and breakdown voltage ratings meet or exceed the original specification. These parts function identically in typical applications but may exhibit different performance in frequency-dependent or high-gain circuits.

Key Substitution Criteria:

Collector current rating ≥ 500 mA
Collector-emitter breakdown voltage ≥ 45 V
Saturation voltage ≤ 700 mV at specified bias
Operating temperature range includes -55°C to 150°C
Surface-mount package compatibility (SOT-23-3 or equivalent)
PNP transistor type

Parameter Comparison

Part Number	Manufacturer	Ic (Max)	V(BR)CEO (Max)	Vce Sat @ Ib, Ic	hFE Min @ Ic, Vce	Power (Max)	Freq - Transition	Temp Range	Package	Product Status	RoHS
BC807-40-7	Diodes Inc.	500 mA	45 V	700 mV @ 50 mA, 500 mA	250 @ 100 mA, 1 V	310 mW	100 MHz	-55°C to 150°C	SOT-23-3	Discontinued	Non-Compliant
BC807-40-7-F	Diodes Inc.	500 mA	45 V	700 mV @ 50 mA, 500 mA	250 @ 100 mA, 1 V	310 mW	100 MHz	-55°C to 150°C	SOT-23-3	Active	ROHS3 Compliant
BC807-40Q-7-F	Diodes Inc.	500 mA	45 V	700 mV @ 50 mA, 500 mA	250 @ 100 mA, 1 V	310 mW	100 MHz	-55°C to 150°C	SOT-23-3	Active	ROHS3 Compliant
BC807-16-TP	Micro Commercial Co	500 mA	45 V	700 mV @ 50 mA, 500 mA	100 @ 100 mA, 1 V	300 mW	100 MHz	-55°C to 150°C	SOT-23-3	Active	ROHS3 Compliant
2PB1219AS,115	Nexperia USA Inc.	500 mA	50 V	600 mV @ 30 mA, 300 mA	170 @ 150 mA, 10 V	200 mW	140 MHz	-55°C to 150°C	SOT-323	Active	ROHS3 Compliant
2PB709ASL,215	Nexperia USA Inc.	100 mA	45 V	500 mV @ 10 mA, 100 mA	290 @ 2 mA, 10 V	250 mW	80 MHz	-55°C to 150°C	TO-236AB	Active	ROHS3 Compliant
BC807,215	Nexperia USA Inc.	500 mA	45 V	700 mV @ 50 mA, 500 mA	100 @ 100 mA, 1 V	250 mW	80 MHz	-55°C to 150°C	TO-236AB	Active	ROHS3 Compliant
BC807-16,215	Nexperia USA Inc.	500 mA	45 V	700 mV @ 50 mA, 500 mA	100 @ 100 mA, 1 V	250 mW	80 MHz	-55°C to 150°C	TO-236AB	Active	ROHS3 Compliant
BC807-16,235	Nexperia USA Inc.	500 mA	45 V	700 mV @ 50 mA, 500 mA	100 @ 100 mA, 1 V	250 mW	80 MHz	-55°C to 150°C	TO-236AB	Active	ROHS3 Compliant
BC807-16LT1G	onsemi	500 mA	45 V	700 mV @ 50 mA, 500 mA	100 @ 100 mA, 1 V	300 mW	100 MHz	-55°C to 150°C	SOT-23-3	Active	ROHS3 Compliant
BC807-16LT3G	onsemi	500 mA	45 V	700 mV @ 50 mA, 500 mA	100 @ 100 mA, 1 V	300 mW	100 MHz	-55°C to 150°C	SOT-23-3	Active	ROHS3 Compliant

Engineering Selection Recommendations

Tier 1 - Direct Replacement (Identical Electrical Performance):

BC807-40-7-F and BC807-40Q-7-F from Diodes Incorporated provide complete electrical equivalence to the original BC807-40-7. Both parts maintain 500 mA collector current, 45 V breakdown voltage, 700 mV saturation voltage, 250 minimum hFE at specified bias, and 100 MHz transition frequency. BC807-40-7-F is available in Cut Tape and Digi-Reel packaging with 17,100 units in stock. BC807-40Q-7-F includes AEC-Q101 automotive qualification and is available in Tape & Reel format with 35,400 units in stock. Both are ROHS3 compliant, addressing the non-compliance status of the original part.

Tier 2 - Functional Equivalents (Minor Parameter Variations):

BC807-16LT1G and BC807-16LT3G from onsemi maintain full electrical compatibility with 500 mA collector current, 45 V breakdown voltage, and 100 MHz transition frequency. These parts differ in DC current gain (100 minimum hFE versus 250) and are suitable for applications where gain variation does not impact circuit performance. Both are ROHS3 compliant and available in SOT-23-3 packaging with high inventory levels (146,930 and 30,400 units respectively).

BC807-16-TP from Micro Commercial Co provides equivalent current and voltage ratings with 100 MHz transition frequency and ROHS3 compliance. This part is available in Tape & Reel format with 3,955 units in stock.

Tier 3 - Reduced Current Applications:

2PB709ASL,215 from Nexperia is suitable only for applications requiring maximum 100 mA collector current. This part maintains 45 V breakdown voltage and includes AEC-Q101 automotive qualification. Use this part only when circuit current requirements do not exceed 100 mA.

Tier 4 - Enhanced Voltage Rating:

2PB1219AS,115 from Nexperia provides 50 V breakdown voltage (exceeding the 45 V requirement) with 500 mA collector current and 140 MHz transition frequency. This part is packaged in SOT-323 (smaller than SOT-23-3) and includes AEC-Q101 automotive qualification. Use this part when higher voltage margin or smaller package size is required, noting the package change requires PCB layout modification.

Compliance Consideration:

All recommended substitutes are ROHS3 compliant, addressing the non-compliance status of the discontinued BC807-40-7. Selection should prioritize parts with active product status and highest inventory availability for supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can BC807-40-7-F directly replace BC807-40-7 without circuit modification?

A: Yes. BC807-40-7-F is electrically identical to BC807-40-7 across all critical parameters: 500 mA collector current, 45 V breakdown voltage, 700 mV saturation voltage, 250 minimum hFE, and 100 MHz transition frequency. The part is pin-compatible in SOT-23-3 packaging and requires no circuit changes. The primary difference is ROHS3 compliance and active product status.

Q: What is the difference between BC807-40Q-7-F and BC807-40-7-F?

A: Both parts are electrically identical. BC807-40Q-7-F includes AEC-Q101 automotive qualification and is supplied in Tape & Reel format. BC807-40-7-F is available in Cut Tape and Digi-Reel packaging. Selection depends on packaging requirements and whether automotive-grade qualification is necessary for the application.

Q: Can BC807-16LT1G replace BC807-40-7 in all applications?

A: BC807-16LT1G maintains electrical compatibility for collector current (500 mA), breakdown voltage (45 V), saturation voltage (700 mV), and transition frequency (100 MHz). The primary difference is DC current gain: BC807-16LT1G has 100 minimum hFE compared to 250 for BC807-40-7. In applications where circuit gain is not critical or where the lower gain is compensated by circuit design, BC807-16LT1G is a suitable substitute. In high-gain amplifier circuits, the lower hFE may require design adjustment.

Q: Why is 2PB709ASL,215 listed as a substitute if it only supports 100 mA?

A: 2PB709ASL,215 is a functional substitute only for applications where maximum collector current does not exceed 100 mA. It maintains 45 V breakdown voltage, saturation characteristics, and operating temperature range. This part is not suitable for circuits requiring the full 500 mA capability of BC807-40-7.

Q: What is the significance of the package designation change from SOT-23-3 to SOT-323 for 2PB1219AS,115?

A: SOT-323 is a smaller surface-mount package than SOT-23-3. While both are three-terminal packages with identical pin function, the physical dimensions differ. Substitution with 2PB1219AS,115 requires PCB layout modification to accommodate the smaller package footprint. Pin-to-pin electrical function remains identical.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All recommended substitute parts are ROHS3 compliant, addressing the non-compliance status of the original BC807-40-7. This compliance status is mandatory for many applications and supply chain requirements.

Q: Which substitute part has the highest inventory availability?

A: BC807-16LT1G from onsemi has the highest inventory with 146,930 units in stock, followed by BC807-40Q-7-F from Diodes Incorporated with 35,400 units. Both parts are electrically suitable for direct replacement applications.

Q: Can 2PB1219AS,115 be used in place of BC807-40-7 for higher voltage margin?

A: Yes, if the application permits package change. 2PB1219AS,115 provides 50 V breakdown voltage (5 V higher than the 45 V requirement) and maintains 500 mA collector current. The part includes AEC-Q101 automotive qualification. However, the SOT-323 package is smaller than SOT-23-3, requiring PCB layout modification.

Q: What is the difference between Cut Tape, Digi-Reel, and Tape & Reel packaging?

A: Cut Tape and Digi-Reel are packaging formats for lower-volume orders, with parts supplied on tape that can be cut to length. Tape & Reel format supplies parts on continuous reel for automated assembly equipment. Selection depends on manufacturing process and order volume. Electrical specifications are identical across all packaging formats for the same part number.

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