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UC2843BD1

ACTIVE
STMICROELECTRONICS

STMICROELECTRONICS - UC2843BD1 - Current Mode PWM, 30V supply, 500 kHz, 5V/1A out, SOIC-8

In full production. No end-of-life notice on file.

UC2843BD1 is a Current Mode PWM from STMICROELECTRONICS. 1 authorized distributor quotes it on TracedParts, from RM 7.55 at quantity 1, with 2,222 units in stock for immediate despatch. Figures come from the distributors' own APIs, pulled in the catalogue snapshot of 2026-10-27, and are indicative rather than a binding quote.

RoHS COMPLIANTREACH - SMD
BEST PRICE @1
RM 7.55
element14 · authorized
TOTAL STOCK
2,222
1 source
SHORTEST LEAD
stock
ships from warehouse
AUTHORIZED
1 / 1
tier 1 sources

Who has UC2843BD1 in stock, and what does it cost?

1 authorized distributor · pulled from their APIs in the catalogue snapshot of 2026-10-27
QTY pcs
DISTRIBUTOR
STOCK
MOQ
PRICE BREAKS · MYR
LEAD
@250 PCS
TIER 1 - AUTHORIZED DISTRIBUTORfranchised - full warranty - paperwork QA will accept
AUTH
2,222
1
1+7.550010+5.0600100+4.1800500+4.06001k+3.53002k+3.52005k+3.4500
stock
ex-warehouse
RM 4.1800
RM 1,045.00 total
Buy ↗
What 250 pcs actually costs landed in Malaysia, duty and SST included: RM 1,188.87 RM 4.7555 per unit, DDP · estimate Open estimator →

What are the specifications of UC2843BD1?

24 parameters▾
Device specification
tariffCode85423990
No. of Pins8
Duty Cycle Min0
SVHCNo SVHC (25-Jun-2025)
Output Current1
Output Voltage5
productTraceabilityNo
TopologyBoost, Flyback
Switching Frequency Min-
Supply Voltage Min-
Operating Temperature Min-40
Control ModeCurrent Mode Control
Supply Voltage Max30
IC Case / PackageSOIC
Ordering & compliance
ManufacturerSTMICROELECTRONICS
CategoryControllers
Package-
MountingSurface mount
LifecycleACTIVE
RoHSCompliant
Moisture levelNot applicable (through hole)
PackagingTape & reel
Country of origin
HS code

Where can I download the UC2843BD1 datasheet?

link supplied by element14▾
PDF
UC2843BD1 datasheet
link supplied by element14 · STMICROELECTRONICS · English
Open datasheet ↗

This is the datasheet link the distributor returned with the part record. We pass it through as they gave it, and we have not opened it - there are more than 300,000 of these and we verify only the ones we curate by hand. If it does not resolve, that is the distributor’s record, not the part.

What does UC2843BD1 cost landed in Malaysia?

Malaysia · DDP · HS ▾
Goods
Freight · express 2 d
Import duty · 0 % (ITA-exempt)
Sales & service tax · 6 %
Customs clearance
Landed total

Estimate only. The correct HS classification for your import is your responsibility - see terms of service.

Is there a CAD symbol and footprint for UC2843BD1?

4 downloads▾
SCHEMATIC SYMBOL · .libPCB FOOTPRINT · .kicad_mod 3D MODEL · .stepSPICE · .mod

What can I use instead of UC2843BD1?

3 in controllers▾
NCP1399ACDR2G
ONSEMI
ONSEMI - NCP1399ACDR2G - PWM Controller, Resonant, C…
39,260
RM 7.55
UC3843AN
TEXAS INSTRUMENTS
TEXAS INSTRUMENTS - UC3843AN - Current Mode PWM, 25V…
39,260
RM 7.55
BD9845FV-E2
ROHM
ROHM - BD9845FV-E2 - DC/DC Controller, Buck (Step Do…
39,260
RM 7.55

Nearest peers by price within the same category. Confirm the parameters before you substitute - these are not guaranteed drop-in replacements.

Which parts are similar to UC2843BD1?

8 parts▾
A3977SLPTR-TA3983SLPTR-TVNH7070ASTRA4982SLPTR-TFAN7601BMXDS1321S+USB3503A-1-GL-TRA3987SLPTR-T

Common questions about UC2843BD1

7 questions▾
Is UC2843BD1 in stock?
Yes. 2,222 units are in stock across 1 authorized distributor (element14), as of the catalogue snapshot of 2026-10-27.
How much does UC2843BD1 cost?
RM 7.5500 is the lowest unit price on this page, from element14. Prices fall as quantity rises; the full price break ladder is in the quotes table. Figures come from the distributor API and are indicative, not a binding quote.
Who supplies UC2843BD1?
element14. It is authorized, franchised distributor quoting through its own API. TracedParts carries no broker or open-market listings.
How old are these prices?
The catalogue is re-pulled from the distributors' APIs once a day, and the line under the Quotes heading says which pull the figures on this page came from. Prices and stock can move between pulls, so treat them as indicative and confirm on the distributor's site before you order.
Who quoted these prices?
Every row on the site comes from an authorized, franchised distributor through its own API: DigiKey, Mouser or element14. There are no broker or open-market listings on TracedParts. If a source ever changes, the row will say so.
Why do you show the source before the price?
Because who sold it decides what happens at incoming inspection, and a table sorted by price alone hides that. Rows are grouped by the distributor's status first and ordered by unit price inside the group.
Why are prices in ringgit?
Distributors quote in US dollars. TracedParts converts to MYR at a fixed reference rate that is printed on the page, not a live FX feed, so the ringgit figure is a sourcing estimate rather than the amount you will be billed.