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BD437S Transistors - Bipolar (BJT) - Single by ON Semiconductor
BD437S is a Transistors - Bipolar (BJT) - Single model from ON Semiconductor, presented on TrustCompo for buyers who need clear sourcing and review context before RFQ. This listing sits in the Discrete Semiconductor Products / Transistors - Bipolar (BJT) - Single product path. Known package information currently points to TO-126 under the ON Semiconductor brand listing. TRANS NPN 45V 4A TO-126. TrustCompo combines the available model, brand, hierarchy, and specification details around BD437S so buyers can move faster from review to quotation.
RoHS
Datasheet
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Traceability and authenticity checks
Fast RFQ turnaround
Documentation support
Pre-shipment inspection review
Key specifications
Series
-
Min Quantity
1
Category
Discrete Semiconductor ProductsSub Category
Transistors - Bipolar (BJT) - SingleDescription
TRANS NPN 45V 4A TO-126
key Attributes
-
Datasheet
View BD437S DatasheetTechnical document
Open The Official Datasheet
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Why request a quote
Use the RFQ step to confirm the commercial and documentation details buyers usually need before placing an order.
RoHS, REACH, and lead-free documentation can be confirmed during RFQ
Traceability and Certificate of Conformance support available on request
Pre-shipment inspection report support for quality review
Trust signals
Globally recognized certifications
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ISO 9001
Quality management processes for more consistent sourcing and handling.
AS9120B
Aerospace-focused distribution controls for traceability and reliability.
ISO 14001
Environmental management discipline across warehouse and operating workflows.
ESD Control
Electrostatic handling standards to help protect sensitive components.
Ordering workflow
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1
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2
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3
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Product overview
Overview
TRANS NPN 45V 4A TO-126
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Popular Specs Surfaced First
Product Attribute
Mounting Type
Through Hole
Product Attribute
REACH Status
REACH Unaffected
Product Attribute
ECCN
EAR99
Product Attribute
Lead Free
Lead Free
Product Attribute
Packaging
Bulk
Product Attribute
Factory Lead Time
12 Weeks
Mounting Type
Through Hole
REACH Status
REACH Unaffected
ECCN
EAR99
Lead Free
Lead Free
Packaging
Bulk
Factory Lead Time
12 Weeks
Published
2011
Part Status
Obsolete
Length
8mm
Height
11mm
Element Configuration
Single
Manufacturer
ON Semiconductor
Categories
Discrete Semiconductor Products
Transistor Application
SWITCHING
Transistor Element Material
SILICON
Subcategory
Other Transistors
Contact Plating
Tin
Radiation Hardening
No
Pbfree Code
yes
Mount
Through Hole
Number Of Pins
3
Number Of Terminations
3
Current Rating
4A
Gain Bandwidth Product
3MHz
Width
3.25mm
Lifecycle Status
LIFETIME (Last Updated: 2 days ago)
Voltage - Rated DC
45V
Power Dissipation
36W
Sub-Categories
Transistors - Bipolar (BJT) - Single
Operating Temperature
150°C TJ
Emitter Base Voltage (VEBO)
5V
Polarity/Channel Type
NPN
Collector Emitter Breakdown Voltage
60V
DC Current Gain (HFE) (Min) @ Ic, Vce
30 @ 10mA 5V
HFE Min
40
Collector Emitter Saturation Voltage
200mV
Collector Emitter Voltage (VCEO)
45V
Current - Collector Cutoff (Max)
100μA
Collector Base Voltage (VCBO)
45V
Max Collector Current
4A
Max Power Dissipation
36W
Transition Frequency
3MHz
Frequency
3MHz
Package / Case
TO-225AA, TO-126-3
Vce Saturation (Max) @ Ib, Ic
600mV @ 200mA, 2A
Weight
761mg
Base Part Number
BD437
Manufacturer'S Part No.
BD437S
Number Of Elements
1
Max Breakdown Voltage
45V
Transistor Type
NPN
JESD-609 Code
e3
Moisture Sensitivity Level (MSL)
1 (Unlimited)
RoHS Status
ROHS3 Compliant
REACH SVHC
No SVHC
HTSUS
8541.29.0095
ECCN Code
EAR99
Common questions
Product FAQ
Quick answers for buyers reviewing BD437S, stock, documentation, and sourcing steps.
What is BD437S?
BD437S is a Transistors - Bipolar (BJT) - Single component from ON Semiconductor. This product page summarizes the core sourcing details buyers need before checking price, availability, documentation, or samples.
What package and description are listed for BD437S?
BD437S is listed with package reference TO-126. The current product description is TRANS NPN 45V 4A TO-126, and buyers should confirm package, footprint, and electrical details against the datasheet or quotation notes before approval.
Is BD437S available in stock?
This page currently shows 89600 units in stock and 85917 units available for BD437S. Because electronic component availability can change quickly, submit an RFQ to confirm live stock, lead time, and final pricing.
Can I request a quote or sample for BD437S?
Yes. Use the Quick Quote or Request Sample action on this page to send the quantity and sourcing requirements for BD437S by ON Semiconductor. The TrustCompo team can review price, availability, and documentation support.
Is a datasheet available for BD437S?
Yes. This page links to the datasheet for BD437S by ON Semiconductor, so engineers and buyers can review package, ratings, and application details before purchase.
How should buyers verify BD437S before ordering?
Buyers should confirm the manufacturer, package, quantity, target price, RoHS or compliance needs, and any Certificate of Conformance or traceability requirements for BD437S before approving the order.
Transistors - Bipolar (BJT) - Single
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