BDV64B Equivalent & Substitute Parts

Part Overview

The BDV64B is a PNP Darlington bipolar junction transistor manufactured by onsemi, rated for 100 V collector-emitter breakdown voltage and 10 A maximum collector current in a SOT-93 (TO-218-3) through-hole package. This component is classified as obsolete, indicating discontinued production and limited availability. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure procurement of functionally compatible alternatives for new production runs or field replacements.

Key Parameters

Parameter	Value
Transistor Type	PNP - Darlington
Current - Collector (Ic) (Max)	10 A
Voltage - Collector Emitter Breakdown (Max)	100 V
Vce Saturation (Max) @ Ib, Ic	2V @ 20mA, 5A
Current - Collector Cutoff (Max)	1mA
DC Current Gain (hFE) (Min) @ Ic, Vce	1000 @ 5A, 4V
Power - Max	125 W
Operating Temperature	-65°C ~ 150°C (TJ)
Mounting Type	Through Hole
Package / Case	TO-218-3

Substitute Part Grouping Explanation

Substitution of the BDV64B is determined by electrical and mechanical parameter equivalence. The following criteria establish valid substitution:

Electrical Parameters (Must Match):

Transistor Type: PNP - Darlington configuration
Maximum Collector Current (Ic): 10 A
Maximum Collector-Emitter Breakdown Voltage: 100 V
Vce Saturation characteristics: 2V @ 20mA, 5A
Maximum Collector Cutoff Current: 1mA
DC Current Gain (hFE): 1000 minimum @ 5A, 4V
Maximum Power Dissipation: 125 W
Operating Temperature Range: -65°C ~ 150°C (TJ)

Mechanical Parameters (Must Match):

Mounting Type: Through Hole
Base compatibility within the TO-218 family

The BDV64BG qualifies as a direct substitute based on identical electrical specifications and compatible through-hole mounting architecture, despite packaging differences between SOT-93 and TO-247-3 case styles.

Parameter Comparison

Parameter	BDV64B (Main Part)	BDV64BG (Substitute)	Match Status
Manufacturer	onsemi	onsemi	Identical
Transistor Type	PNP - Darlington	PNP - Darlington	Identical
Current - Collector (Ic) (Max)	10 A	10 A	Identical
Voltage - Collector Emitter Breakdown (Max)	100 V	100 V	Identical
Vce Saturation (Max) @ Ib, Ic	2V @ 20mA, 5A	2V @ 20mA, 5A	Identical
Current - Collector Cutoff (Max)	1mA	1mA	Identical
DC Current Gain (hFE) (Min) @ Ic, Vce	1000 @ 5A, 4V	1000 @ 5A, 4V	Identical
Power - Max	125 W	125 W	Identical
Operating Temperature	-65°C ~ 150°C (TJ)	-65°C ~ 150°C (TJ)	Identical
Mounting Type	Through Hole	Through Hole	Identical
Package / Case	TO-218-3 (SOT-93)	TO-247-3	Compatible Family
Product Status	Obsolete	Active	Substitute is Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	Substitute is Compliant

Engineering Selection Recommendations

The BDV64BG is the qualified substitute for the obsolete BDV64B based on the following factors:

Electrical Equivalence: All critical electrical parameters are identical, including collector current rating, breakdown voltage, saturation characteristics, current gain, power dissipation, and operating temperature range. Direct functional substitution is established.

Product Status: The BDV64B is obsolete with no ongoing production. The BDV64BG maintains active product status, ensuring long-term availability and supply chain continuity.

Regulatory Compliance: The BDV64BG achieves ROHS3 compliance, whereas the BDV64B is non-compliant. For applications subject to RoHS regulations, the BDV64BG is the required selection.

Package Consideration: Both parts utilize through-hole mounting within the TO-218 family. The BDV64BG employs TO-247-3 packaging, which provides equivalent lead configuration and PCB footprint compatibility with minor dimensional variations. Verification of PCB layout accommodation for TO-247-3 dimensions is necessary during design transition.

Inventory Status: The BDV64BG is available in active inventory (1120 pcs), supporting immediate procurement requirements.

Frequently Asked Questions (FAQ)

Q: Can the BDV64BG directly replace the BDV64B in existing designs?

A: Yes, electrical substitution is direct. All electrical parameters are identical. PCB layout verification is required to confirm TO-247-3 package dimensions fit the existing TO-218-3 footprint, as case outlines differ slightly despite compatible lead spacing.

Q: What is the primary reason for substituting the BDV64B?

A: The BDV64B is classified as obsolete with discontinued production. The BDV64BG provides identical electrical performance with active manufacturing status and improved regulatory compliance (ROHS3).

Q: Are there differences in thermal performance between the two packages?

A: Both packages are rated for 125 W maximum power dissipation and operate across -65°C to 150°C. Package thermal characteristics may vary; thermal design verification is recommended for high-power applications.

Q: Does the BDV64BG meet RoHS requirements?

A: Yes, the BDV64BG is ROHS3 compliant. The original BDV64B is RoHS non-compliant. Applications requiring RoHS certification must use the BDV64BG.

Q: Are the lead configurations identical between BDV64B and BDV64BG?

A: Both parts are through-hole mounted with three leads in compatible TO-218 family configurations. Lead spacing and pin assignment are equivalent; however, overall package dimensions differ between SOT-93 and TO-247-3 case styles.

Q: What is the base product number for both parts?

A: Both the BDV64B and BDV64BG share the base product number BDV64, indicating they are variants within the same product family with identical electrical specifications.

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