2N4234 Equivalent & Substitute Parts Reference

Part Overview

The 2N4234 is a PNP Bipolar Junction Transistor (BJT) rated for 40 V Collector-Emitter voltage, 1 mA maximum collector current, and 1 W power dissipation. It is housed in a TO-39 (TO-205AD) through-hole metal can package. The product is classified as Active with a specified operating temperature range of -65°C to 200°C (TJ). Identifying suitable alternative models is essential for ensuring supply chain robustness and design flexibility within the specified component category.

Substiute Parts

2N4234

Microchip TechnologyIn Stock: 16202N4234 Datasheet

Current PartRFQ

2N4037 PBFREE

Central Semiconductor CorpIn Stock: 15602N4037 PBFREE Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute models are grouped strictly by matching electrical properties and mechanical compatibility as specified for transistors within this category. The following key parameters are required to match or exceed for a valid substitute: Transistor Type, Voltage - Collector Emitter Breakdown (Max), Current - Collector (Ic) (Max), Power - Max, DC Current Gain (hFE) (Min) at indicated test conditions, Vce Saturation (Max), Current - Collector Cutoff (Max), Operating Temperature, and mechanical compatibility through package/case type.

Parameter Comparison

Engineering Selection Recommendations

Both 2N4234 (Microchip Technology) and 2N4037 PBFREE (Central Semiconductor Corp) are classified as Active and meet applicable environmental compliance requirements. The substitute part holds ROHS3 and REACH Unaffected status and matches the package and performance ratings as defined by the provided parameters.

Frequently Asked Questions (FAQ)

Q1: Which key parameters determine equivalency between the 2N4234 and substitute parts?
A1: Key equivalency factors include Transistor Type (PNP), Voltage - Collector Emitter Breakdown (Max), Current - Collector (Ic) (Max), Power - Max, DC Current Gain (hFE) at specified test conditions, Vce Saturation (Max), Current - Collector Cutoff (Max), Operating Temperature, and the specific package/case type (TO-205AD, TO-39-3 Metal Can).

Q2: Are both parts compatible in terms of package and mounting?
A2: Both 2N4234 and 2N4037 PBFREE feature the TO-205AD, TO-39-3 Metal Can package for through-hole mounting, ensuring mechanical compatibility.

Q3: Does the substitute part meet environmental compliance requirements?
A3: The 2N4037 PBFREE is designated as ROHS3 Compliant and REACH Unaffected, in line with typical regulatory requirements provided for substitute evaluation.

Q4: Is there any difference in product status between the main and substitute parts?
A4: Both components are listed as Active according to the input parameters.

Q5: On what basis was the substitute selected?
A5: The substitute was selected strictly by matching the defined electrical and mechanical parameters, package, and compliance status as outlined in the provided specifications.