Name: RTC-72421B
Brand: EPSON
SKU: RTC-72421B
Availability: InStock
Rating: 5 (86 reviews)

RTC-72421B

For Reference Only

Part Number	RTC-72421B
Manufacturer	EPSON
Description	IC RTC CLK/CALENDAR PAR 18-DIP
Datasheet	RTC-72421B Datasheet RTC-72421B Specifications
Package	18-DIP (0.300", 7.62mm)
ECAD
In Stock	15,264 piece(s)
Unit Price	Request a Quote
Lead Time	Can Ship Immediately
Estimated Delivery Time	May 1 - May 6 (Choose Expedited Shipping)
Request for Quotation

Payment Methods
Delivery Services

Part Number # RTC-72421B (Clock/Timing - Real Time Clocks) is manufactured by EPSON 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 RTC-72421B specifications/configurations, quotation, lead time, payment terms of further enquiries please have no hesitation to contact us. To process your RFQ, please add RTC-72421B with quantity into BOM. Heisener.com does NOT require any registration to request a quote of RTC-72421B.

RTC-72421B Specifications

Manufacturer	EPSON
Category	Integrated Circuits (ICs) - Clock/Timing - Real Time Clocks
Package	18-DIP (0.300", 7.62mm)
ECAD
Series	-
Type	Clock/Calendar
Features	Leap Year
Memory Size	-
Time Format	HH:MM:SS (12/24 hr)
Date Format	YY-MM-DD-dd
Interface	Parallel
Voltage - Supply	4.5 V ~ 5.5 V
Voltage - Supply, Battery	-
Current - Timekeeping (Max)	5µA ~ 10µA @ 2V ~ 5V
Operating Temperature	-10°C ~ 70°C
Mounting Type	Through Hole
Package / Case	18-DIP (0.300", 7.62mm)
Supplier Device Package	18-DIP

RTC-72421B Datasheet

RTC-72421B Reviews

Koda*****nolds

March 30, 2023

★ ★ ★ ★ ★

Fantastic Quality Control and Great Selection. Heisener Electronics has became to my No.1 Supplier for many years.

Bjo*****Sinha

March 30, 2023

★ ★ ★ ★ ★

Quality made product satisfied with my purchase. Thanks.

Mar*****Menon

March 24, 2023

★ ★ ★ ★ ★

Great price. Worked well for my needs.

Mason*****leton

March 17, 2023

★ ★ ★ ★ ★

Good communication and fast shipping! Recommended!

Lail*****avage

March 16, 2023

★ ★ ★ ★ ★

I had no problems with this product. Would I recommend it. Yes.

Gabr*****Mata

March 6, 2023

★ ★ ★ ★ ★

Every time I order, I get it correctly filled and faster than most of website. For a friendly use operate system, you guys are the best!

Vien*****hanna

March 1, 2023

★ ★ ★ ★ ★

I wish I had come across Heisener first, no one could help me for 2 days. You are now saved into the TOP of my favorites web list. Thank you very much.

Jewe*****ndoval

February 26, 2023

★ ★ ★ ★ ★

Completely satisfied of RTC-72421B , I always find what I need. The site is easy to get the components .

Linds*****rayan

February 24, 2023

★ ★ ★ ★ ★

I always have good experiences in dealing with Heisener Electronics. They have the components I need in stock, their search function is great, and shipping is fast and always as promised.

Write a Review

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RTC-72421B Packaging

RTC-72421B FAQ

1. How to order RTC-72421B 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 RTC-72421B is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the RTC-72421B. All suppliers must pass our qualification reviews before they can publish their products including RTC-72421B on Heisener; we pay more attention to the channels and quality of RTC-72421B products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
3. Are the RTC-72421B price and inventory displayed accurate?

The price and inventory of RTC-72421B 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 RTC-72421B?

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 RTC-72421B we delivered, we will accept the replacement or return of the RTC-72421B 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 RTC-72421B.

(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 RTC-72421B pin diagram, RTC-72421B datasheet?

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

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RTC-72421B 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

RTC-72421B

D# R1059651

Seiko Epson Corporation

IC RTC-72421B

RoHS: Compliant

Part Number

Manufacturer

Description

Stock

RTC-72421B0 ROHS

D# V36:1790_16239327

Seiko Epson Corporation

RTC-72421B0 ROHS

RTC-72421B: ROHS

D# V99:2348_18713939

Seiko Epson Corporation

Real Time Clock Parallel Clock/Calendar/Clock Adjustment 18-Pin PDIP

Part Number

Manufacturer

Description

Stock

RTC72421B

Seiko Epson Corporation

Part Number

Manufacturer

Description

Stock

RTC-72421B

Epson Electronics America Inc

ROHS REAL TIME CLOCK +/-50PPM 18 PIN - Rail/Tube

RTC-72421B:ROHS

Epson Electronics America Inc

ROHS REAL TIME CLOCK +/-50PPM 18 PIN - Rail/Tube

Part Number	Manufacturer	Description	Stock
RTC-72421B: ROHS D# SER3232-ND	Seiko Epson Corporation	IC RTC CLK/CALENDAR PAR 18-DIP	1623
RTC-72421B: PURE SN D# RTC-72421B:PURESN-ND	Seiko Epson Corporation	IC REAL TIME CLOCK/CALENDAR	0
RTC-72421B D# SE3232-ND	Seiko Epson Corporation	IC RTC CLK/CALENDAR PAR 18-DIP	0

Part Number

Manufacturer

Description

Stock

RTC-72421B

In stock shipping within 2days

38625

RTC72421B

Seiko Epson Corporation

In stock shipping within 2days

6630

Part Number

Manufacturer

Description

Stock

Q427242110002 RTC-72421B

D# 1216228

Seiko Epson Corporation

IC, RTC, 72421, DIP18

RoHS: Compliant

Min Qty: 1

Container: Each

1515

Part Number

Manufacturer

Description

Stock

RTC-72421B: ROHS

Epson Electronics America Inc

RoHS: Compliant

pbFree: Yes

Part Number	Manufacturer	Description	Stock
RTC72421B	Seiko Epson Corporation	OEM/CM QUOTES ONLY \| NO BROKERS	833
RTC72421BROHS	Seiko Epson Corporation	OEM/CM QUOTES ONLY \| NO BROKERS	807
Q427242110002RTC72421B	Seiko Epson Corporation	OEM/CM QUOTES ONLY \| NO BROKERS	2016
PRTC72421BFOX	Fox Electronics	OEM/CM QUOTES ONLY \| NO BROKERS	148
PRTC72421B	MSL	OEM/CM QUOTES ONLY \| NO BROKERS	568

Part Number

Manufacturer

Description

Stock

RTC72421B

Seiko Epson Corporation

OEM/CM Immediate delivery

800

Part Number

Manufacturer

Description

Stock

RTC-72421B:ROHS

D# 732-RTC-72421BR

Seiko Epson Corporation

Real Time Clock 4-Bit 12/24 Hr 50ppm 18 pin

RoHS: Compliant

Part Number

Manufacturer

Description

Stock

Q427242110002 RTC-72421B

D# 01M8738

Seiko Epson Corporation

REAL TIME CLOCK-RTC, Date Format:YYYY:MM:DD:Hr:Min:Secs, Clock Format:12Hr / 24Hr, Clock IC Type:RTC, Supply Voltage Min:4.5V, Supply Voltage Max:5.5V, Clock IC Case Style:DIP, No. of Pins:18Pins, IC Interface Type:Parallel, MSL:- RoHS Compliant: Yes

RoHS: Compliant

Min Qty: 1

Container: Bulk

Part Number

Manufacturer

Description

Stock

RTC-72421B

D# NS-RTC-72421B

Seiko Epson Corporation

OEM/CM ONLY

1578

Part Number

Manufacturer

Description

Stock

RTC-72421B

Seiko Epson Corporation

Real Time Clock, 18 Pin, Plastic, DIP

Part Number

Manufacturer

Description

Stock

RTC72421B

D# RTC72421B

Seiko Epson Corporation

Inventory R

Part Number	Manufacturer	Description	Stock
PRTC72421B		OEM/CM ONLY	612
RTC72421B: ROHS	Epson Electronics America Inc	OEM/CM ONLY	1080
RTC72421B	Epson Electronics America Inc	OEM/CM ONLY	556
PRTC72421BFOX		OEM/CM ONLY	139
Q427242110002 RTC72421B	Seiko Epson Corporation	OEM/CM ONLY	118

Part Number

Manufacturer

Description

Stock

RTC72421B

Seiko Epson Corporation

IN stock Immediate delivery

795

Part Number

Manufacturer

Description

Stock

RTC72421B

Seiko Epson Corporation

shipping today

3696

Part Number

Manufacturer

Description

Stock

RTC72421B

Seiko Epson Corporation

RFQ

14824

Part Number

Manufacturer

Description

Stock

Q427242110002 RTC-72421B

D# 1216228

Seiko Epson Corporation

IC, RTC, 72421, DIP18

RoHS: Compliant

Min Qty: 1

Container: Each

Quick Inquiry

RTC-72421B

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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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