DN6849S Equivalent & Substitute Parts

Part Overview

The DN6849S is a bipolar magnetic switch manufactured by Panasonic Electronic Components, utilizing Hall Effect technology for digital switching applications. This component features open collector output with temperature compensation and operates across a 4.5V to 16V supply range. The product is currently obsolete, necessitating identification of functionally equivalent alternatives for ongoing design requirements and component sourcing.

Key Parameters

Parameter	DN6849S
Manufacturer	Panasonic Electronic Components
Technology	Hall Effect
Function	Bipolar Switch
Output Type	Open Collector
Sensing Range	-17mT Trip, 17.5mT Release
Voltage Supply	4.5V ~ 16V
Current Supply (Max)	6mA
Current Output (Max)	10µA
Operating Temperature	-40°C ~ 100°C
Mounting Type	Surface Mount
Package	4-SMD, Gull Wing (4-ESOP)
Product Status	Obsolete
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution of the DN6849S requires evaluation against the following critical parameters: Hall Effect technology foundation, digital switching function, surface mount capability, and operating voltage compatibility. The substitute parts identified—US1881ESE-AAA-000-RE and US1881LSE-AAA-000-RE—share the Hall Effect technology platform and surface mount configuration. However, functional differences exist in switching mode (latch versus bipolar), output type (open drain versus open collector), and sensing polarity (south pole versus north pole). These differences establish distinct application boundaries for substitution eligibility.

Parameter Comparison

Parameter	DN6849S	US1881ESE-AAA-000-RE	US1881LSE-AAA-000-RE
Manufacturer	Panasonic Electronic Components	Melexis Technologies NV	Melexis Technologies NV
Technology	Hall Effect	Hall Effect	Hall Effect
Function	Bipolar Switch	Latch	Latch
Output Type	Open Collector	Open Drain	Open Drain
Polarization	North Pole	South Pole	South Pole
Sensing Range	-17mT Trip, 17.5mT Release	9.5mT Trip, -9.5mT Release	9.5mT Trip, -9.5mT Release
Voltage Supply	4.5V ~ 16V	4.6V ~ 24V	4.6V ~ 24V
Current Supply (Max)	6mA	5mA	5mA
Current Output (Max)	10µA	50mA	50mA
Operating Temperature	-40°C ~ 100°C	-40°C ~ 85°C	-40°C ~ 150°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package	4-SMD, Gull Wing (4-ESOP)	TO-236-3, SC-59, SOT-23-3 (TSOT-23-3)	TO-236-3, SC-59, SOT-23-3 (TSOT-23-3)
Product Status	Obsolete	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

The DN6849S obsolescence status necessitates component replacement. Both US1881ESE-AAA-000-RE and US1881LSE-AAA-000-RE are active products with ROHS3 compliance, addressing regulatory requirements that the original part does not meet.

US1881LSE-AAA-000-RE provides extended operating temperature range (-40°C to 150°C) compared to the DN6849S (-40°C to 100°C), supporting applications requiring elevated temperature performance. US1881ESE-AAA-000-RE operates to 85°C, matching the lower bound of typical industrial requirements.

Both substitutes operate across 4.6V to 24V supply voltage, encompassing the DN6849S 4.5V to 16V range. Output current capability increases from 10µA to 50mA, enabling direct drive of additional circuit elements without intermediate buffering.

Functional differences require circuit-level evaluation: the DN6849S operates as a bipolar switch responding to magnetic field direction reversal, while US1881 variants function as latches, maintaining output state until opposing magnetic field application. Sensing range differences (DN6849S: ±17mT versus US1881: ±9.5mT) and polarization reversal (north pole to south pole) necessitate magnetic circuit redesign.

Frequently Asked Questions (FAQ)

Q: Can US1881ESE-AAA-000-RE or US1881LSE-AAA-000-RE directly replace DN6849S in existing designs?

A: Direct pin-for-pin replacement is not possible due to package differences (4-ESOP versus TSOT-23-3) and functional mode differences (bipolar switch versus latch). Circuit redesign is required.

Q: What is the primary functional difference between DN6849S and the US1881 variants?

A: DN6849S operates as a bipolar switch, toggling output state with each magnetic field polarity reversal. US1881 variants operate as latches, requiring opposing magnetic fields to change state. This affects circuit timing and control logic.

Q: How do sensing range differences impact substitution?

A: DN6849S requires ±17mT magnetic field strength for operation, while US1881 variants respond to ±9.5mT. Magnetic circuit design must be adjusted accordingly. Additionally, polarization differs (north pole versus south pole), requiring magnet orientation reversal.

Q: Which substitute part is suitable for high-temperature applications?

A: US1881LSE-AAA-000-RE supports -40°C to 150°C operating range, accommodating elevated temperature environments. US1881ESE-AAA-000-RE is limited to -40°C to 85°C.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both US1881ESE-AAA-000-RE and US1881LSE-AAA-000-RE are ROHS3 compliant, addressing regulatory requirements not met by the obsolete DN6849S.

Q: What packaging options are available for the substitute parts?

A: US1881ESE-AAA-000-RE is supplied in Tape & Reel (TR) packaging. US1881LSE-AAA-000-RE is supplied in Cut Tape (CT) and Digi-Reel® packaging. Both use TSOT-23-3 device package format.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message