Name: KA3843B
Brand: Fairchild/ON Semiconductor
SKU: KA3843B
Price: 0.2944 USD
Availability: InStock
Rating: 5 (194 reviews)

KA3843B

For Reference Only

Part Number	KA3843B
Manufacturer	Fairchild/ON Semiconductor
Description	IC REG CTRLR 8DIP
Datasheet	KA3843B Datasheet KA3843B Specifications
Package	8-DIP (0.300", 7.62mm)
ECAD
In Stock	319,440 piece(s)
Unit Price	$ 0.2944 *
Lead Time	Can Ship Immediately
Estimated Delivery Time	Apr 26 - May 1 (Choose Expedited Shipping)
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Part Number # KA3843B (PMIC - Voltage Regulators - DC DC Switching Controllers) is manufactured by Fairchild/ON Semiconductor and distributed by Heisener. Being one of the leading electronics distributors, we carry many kinds of electronic components from some of the world’s top class manufacturers. Their quality is guaranteed by its stringent quality control to meet all required standards.

For KA3843B specifications/configurations, quotation, lead time, payment terms of further enquiries please have no hesitation to contact us. To process your RFQ, please add KA3843B with quantity into BOM. Heisener.com does NOT require any registration to request a quote of KA3843B.

KA3843B Specifications

Manufacturer	Fairchild/ON Semiconductor
Category	Integrated Circuits (ICs) - PMIC - Voltage Regulators - DC DC Switching Controllers
Package	8-DIP (0.300", 7.62mm)
ECAD
Series	-
Output Type	Transistor Driver
Function	-
Output Configuration	Positive
Topology	-
Number of Outputs	1
Output Phases	1
Voltage - Supply (Vcc/Vdd)	7.6 V ~ 30 V
Frequency - Switching	Up to 500kHz
Duty Cycle (Max)	97%
Synchronous Rectifier	Yes
Clock Sync	No
Serial Interfaces	-
Control Features	-
Operating Temperature	0°C ~ 70°C (TA)
Package / Case	8-DIP (0.300", 7.62mm)
Supplier Device Package	8-DIP

KA3843B Datasheet

KA3843B Reviews

Moham*****entry

April 2, 2023

★ ★ ★ ★ ★

Used these for a solar project, and they are working great.

Emil***** Moyer

February 19, 2023

★ ★ ★ ★ ★

These very economical items will repair my expensive contactors with just a quick connection.

Write a Review

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KA3843B Packaging

KA3843B FAQ

1. How to order KA3843B on Heisener?

Currently, Heisener only provide peer-to-peer order processing. While you submit the RFQ, our professional agent will contact you with the competitive prices in the global market, and our agent will prompt you to finish the order if you accept our offers.
2. How does Heisener guarantee that KA3843B is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the KA3843B. All suppliers must pass our qualification reviews before they can publish their products including KA3843B on Heisener; we pay more attention to the channels and quality of KA3843B products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
3. Are the KA3843B price and inventory displayed accurate?

The price and inventory of KA3843B fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.
4. What forms of payment are accepted?

Wire Transfer, PayPal, Alipay, Wechat, Credit Card, Western Union, MoneyGram, and Escrow are all acceptable.

Warm Tips: Some orders in certain payment forms may require handling fee.
5. How is the shipping arranged?

Customers can choose industry-leading freight companies, including DHL, UPS, FedEx, TNT, and Registered Mail. Shipping insurance is also available.

Once your order has been processed for shipment, our salesperson will send you an email advising you of the shipping status and tracking number.

Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.
6. What is the process for return or replacement of KA3843B?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the KA3843B we delivered, we will accept the replacement or return of the KA3843B only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of KA3843B.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations
7.How to contact us to get technical supports, such as KA3843B pin diagram, KA3843B datasheet?

If you need any after-sales service, please do not hesitate to contact us.

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KA3843B Guarantees

Service Guarantees

We guarantee 100% customer satisfaction.

Our experienced sales team and tech support team back our services to satisfy all our customers.

Quality Guarantees

We provide 90 days warranty.

If the items you received were not in perfect quality, we would be responsible for your refund or replacement, but the items must be returned in their original condition.

Global Supply Chains - Reliable and Authorized Distributor Resources

Part Number

Manufacturer

Description

Stock

KA3843B

D# V36:1790_06359614

ON Semiconductor

PWM switching Controller IC

RoHS: Compliant

Part Number	Manufacturer	Description	Stock
KA3843BD D# KA3843BD	ON Semiconductor	SWITCHING CONTROLLER, CURRENT-MODE, 1A, 500KHZ SWITCHING FREQ-MAX, BIPOLAR, PDSO14 - Bulk (Alt: KA3843BD) RoHS: Not Compliant	0
KA3843BDTF D# KA3843BDTF	ON Semiconductor	Regulator Positive Output DC-DC Controller IC 14-SOP - Bulk (Alt: KA3843BDTF) RoHS: Compliant	0
KA3843B D# KA3843B	ON Semiconductor	Current Mode PWM Controller 1A 8-Pin PDIP Rail - Bulk (Alt: KA3843B)	0

Part Number	Manufacturer	Description	Stock
KA3843BDTF	Fairchild Semiconductor Corporation	N/A 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO14 SOP-14	5750
KA3843B	Fairchild Semiconductor Corporation	IC, PWM CONTROLLER, 30V, DIP-8	2660
KA3843BD	Fairchild Semiconductor Corporation	Current Mode PWM Controller 1A 14-Pin SOIC N Rail	0

Part Number

Manufacturer

Description

Stock

KA3843B

ON Semiconductor

30V DIP-8 DC-DC Converters RoHS

811

Part Number	Manufacturer	Description	Stock
KA3843BD D# 2156-KA3843BD-FS-ND	Rochester Electronics LLC	SWITCHING CONTROLLER	4760
KA3843BDTF D# 2156-KA3843BDTF-FSTR-ND	Rochester Electronics LLC	SWITCHING CONTROLLER	5750
KA3843B D# 2156-KA3843B-ND	Rochester Electronics LLC	1A, 500KHZ PDIP8	152400

Part Number

Manufacturer

Description

Stock

KA3843BDTF

D# KA3843BDTF

Samsung Electro-Mechanics

Industry Leading ISO:9001/AS9120A Stocking Distributor of Obsolete & Hard to Find IC's/Semi's, Specializing in Altera/Xilinx. In-House Counterfeit Detection Lab. In Business 20 Years. Free Shipping on Orders Over $250. Buy American, Buy Direct

1423

Part Number

Manufacturer

Description

Stock

KA3843B

Fairchild Semiconductor Corporation

In stock shipping within 2days

12260

KA3843BD

Fairchild Semiconductor Corporation

In stock shipping within 2days

940

Part Number

Manufacturer

Description

Stock

KA3843B

D# 1013832

ON Semiconductor

IC, PWM CONTROLLER, 30V, DIP-8

RoHS: Compliant

Min Qty: 1

Container: Each

Part Number	Manufacturer	Description	Stock
KA3843B451B	N/A	OEM/CM QUOTES ONLY \| NO BROKERS	36
KA3843B	Rochester Electronics LLC	OEM/CM QUOTES ONLY \| NO BROKERS	176204
KA3843BDTF	Fairchild Semiconductor Corporation	OEM/CM QUOTES ONLY \| NO BROKERS	34800
KA3843BD	Rochester Electronics LLC	OEM/CM QUOTES ONLY \| NO BROKERS	5522

Part Number

Manufacturer

Description

Stock

KA3843B

D# C184548

ON Semiconductor

811

Part Number	Manufacturer	Description	Stock
KA3843BD	Fairchild Semiconductor Corporation	OEM/CM Immediate delivery	4760
KA3843B	Fairchild Semiconductor Corporation	OEM/CM Immediate delivery	36530
KA3843BDTF	Fairchild Semiconductor Corporation	OEM/CM Immediate delivery	5750

Part Number

Manufacturer

Description

Stock

KA3843B

D# 512-KA3843B

ON Semiconductor

Switching Controllers PWM Control IC

RoHS: Compliant

Part Number

Manufacturer

Description

Stock

KA3843BD

D# NS-KA3843BD

Fairchild Semiconductor Corporation

OEM/CM ONLY

1224

KA3843B

D# NS-KA3843B

Fairchild Semiconductor Corporation

OEM/CM ONLY

2075

Part Number

Manufacturer

Description

Stock

KA3843B

Fairchild Semiconductor Corporation

1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDIP8

Part Number	Manufacturer	Description	Stock
KA3843BD	Fairchild Semiconductor Corporation	Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO14 RoHS: Compliant	4760
KA3843BDTF	Fairchild Semiconductor Corporation	Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO14 RoHS: Compliant	5750
KA3843B	ON Semiconductor	KA3843B - Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, PDIP8 RoHS: Compliant	871

Part Number	Manufacturer	Description	Stock
KA3843BDTF	Fairchild Semiconductor Corporation	OEM/CM ONLY	30016
KA3843B	Fairchild Semiconductor Corporation	OEM/CM ONLY	4123
KA3843B451B	N/A	OEM/CM ONLY	47

Part Number	Manufacturer	Description	Stock
KA3843B	Fairchild Semiconductor Corporation	IN stock Immediate delivery	36515
KA3843BD	Fairchild Semiconductor Corporation	IN stock Immediate delivery	4775
KA3843BDTF	Fairchild Semiconductor Corporation	IN stock Immediate delivery	5765

Part Number

Manufacturer

Description

Stock

KA3843BD

Fairchild Semiconductor Corporation

shipping today

1402

KA3843B

Fairchild Semiconductor Corporation

shipping today

4796

Part Number

Manufacturer

Description

Stock

KA3843B

D# 27478779

ON Semiconductor

PWM switching Controller IC

RoHS: Compliant

Part Number

Manufacturer

Description

Stock

KA3843B

Fairchild Semiconductor Corporation

RFQ

6520

Part Number

Manufacturer

Description

Stock

KA3843B

D# 1013832

ON Semiconductor

IC, PWM CONTROLLER, 30V, DIP-8

RoHS: Compliant

Min Qty: 1

Container: Each

Quick Inquiry

KA3843B

Certified Quality

Heisener's commitment to quality has shaped our processes for sourcing, testing, shipping, and every step in between. This foundation underlies each component we sell.

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