BD13810S Equivalent & Substitute Parts

Part Overview

The BD13810S is a PNP bipolar junction transistor manufactured by onsemi, rated for 60 V collector-emitter breakdown voltage and 1.5 A maximum collector current in a TO-126-3 through-hole package. This device is classified as obsolete, making identification of equivalent and substitute parts necessary for ongoing design support and production continuity. The BD13810S delivers 1.25 W maximum power dissipation with a minimum DC current gain of 63 at specified operating conditions.

Substiute Parts

BD13810S

onsemiIn Stock: 1180BD13810S Datasheet

Current PartRFQ

BD13810STU

Fairchild SemiconductorIn Stock: 22836BD13810STU Datasheet

DirectRFQ

2N4919G

onsemiIn Stock: 15602N4919G Datasheet

SimilarRFQ

BD138G

onsemiIn Stock: 3681BD138G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BD13810S is determined by electrical and mechanical parameter alignment within the PNP bipolar transistor category. The critical parameters governing substitution are:

Electrical Parameters:

• Voltage - Collector Emitter Breakdown (Max): 60 V minimum
• Current - Collector (Ic) (Max): 1.5 A minimum
• Power - Max: 1.25 W minimum
• Vce Saturation characteristics
• DC Current Gain (hFE) specifications

Mechanical Parameters:

• Transistor Type: PNP
• Mounting Type: Through Hole
• Package / Case: TO-126-3 or equivalent TO-225AA

Substitute parts are classified into two categories:

Direct Equivalents: Parts with identical or superior electrical specifications and matching package configurations, enabling direct replacement without circuit modification.

Similar Alternatives: Parts with comparable but not identical electrical specifications, requiring design review to confirm suitability for the specific application.

Parameter Comparison

Engineering Selection Recommendations

BD13810STU (Direct Equivalent - Recommended Primary Substitute)

The BD13810STU is manufactured by Fairchild Semiconductor and maintains active product status. This part provides identical electrical specifications to the BD13810S across all critical parameters: 60 V breakdown voltage, 1.5 A maximum collector current, 1.25 W power rating, and matching Vce saturation and DC current gain characteristics. The TO-126-3 package configuration enables direct mechanical substitution. The BD13810STU is suitable for direct replacement in applications currently using the BD13810S.

BD138G (Similar Alternative - Secondary Substitute)

The BD138G is manufactured by onsemi with active product status and ROHS3 compliance. This part matches the BD13810S in voltage rating (60 V), collector current (1.5 A), power dissipation (1.25 W), and Vce saturation characteristics. The DC current gain specification differs (40 @ 150mA, 2V versus 63 @ 150mA, 2V), and the operating temperature range extends to −55°C. The TO-126 package is mechanically compatible. The BD138G is suitable for applications where the lower DC current gain is acceptable.

2N4919G (Similar Alternative - Conditional Substitute)

The 2N4919G is manufactured by onsemi with last time buy product status. This part shares the 60 V voltage rating and through-hole TO-126 package configuration. However, the maximum collector current is rated at 1 A (versus 1.5 A), and the maximum power dissipation is 30 W (versus 1.25 W). The DC current gain is significantly lower at 30 @ 500mA, 1V. The collector cutoff current is higher at 500µA. The 2N4919G is suitable only for applications where the 1 A collector current rating is sufficient and where the lower DC current gain does not impact circuit performance. Last time buy status indicates limited future availability.

Frequently Asked Questions (FAQ)

Q: Can BD13810STU directly replace BD13810S without circuit modification?

A: Yes. The BD13810STU provides identical electrical specifications and matching TO-126-3 package configuration. Direct substitution is supported without circuit redesign.

Q: What is the primary difference between BD138G and BD13810S?

A: The DC current gain specification differs: BD138G is rated at 40 @ 150mA, 2V compared to BD13810S at 63 @ 150mA, 2V. All other critical electrical parameters are identical. The BD138G also includes ROHS3 compliance and extended operating temperature range (−55°C to 150°C).

Q: Is 2N4919G suitable as a substitute for BD13810S?

A: The 2N4919G is suitable only for applications where the 1 A maximum collector current is sufficient. The 1.5 A rating of the BD13810S cannot be relied upon with the 2N4919G. Additionally, the significantly lower DC current gain (30 versus 63) requires design verification. Last time buy status indicates limited future availability.

Q: Are all substitute parts available in the same package?

A: BD13810STU uses TO-126-3 package (identical to BD13810S). BD138G and 2N4919G use TO-126 package, which is mechanically compatible with TO-126-3 for through-hole mounting applications.

Q: What compliance certifications apply to substitute parts?

A: BD13810STU does not list RoHS status in provided specifications. BD138G and 2N4919G are both ROHS3 compliant. All parts are REACH unaffected and classified as EAR99 for export control purposes.

Q: Why is BD13810S classified as obsolete?

A: Product status reflects manufacturer discontinuation. BD13810STU (active status) and BD138G (active status) are recommended for new designs and ongoing production requirements.