Name: HMA121B
Brand: Fairchild/ON Semiconductor
SKU: HMA121B
Availability: InStock
Rating: 5 (102 reviews)

HMA121B

For Reference Only

Part Number	HMA121B
Manufacturer	Fairchild/ON Semiconductor
Description	OPTOISO 3.75KV TRANSISTOR 4SMD
Datasheet	HMA121B Datasheet HMA121B Specifications
Package	4-SMD, Gull Wing
ECAD
In Stock	36,000 piece(s)
Unit Price	Request a Quote
Lead Time	Can Ship Immediately
Estimated Delivery Time	Apr 28 - May 3 (Choose Expedited Shipping)
Request for Quotation

Payment Methods
Delivery Services

Part Number # HMA121B (Optoisolators - Transistor, Photovoltaic Output) 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 HMA121B specifications/configurations, quotation, lead time, payment terms of further enquiries please have no hesitation to contact us. To process your RFQ, please add HMA121B with quantity into BOM. Heisener.com does NOT require any registration to request a quote of HMA121B.

HMA121B Specifications

Manufacturer	Fairchild/ON Semiconductor
Category	Isolators - Optoisolators - Transistor, Photovoltaic Output
Package	4-SMD, Gull Wing
ECAD
Series	-
Number of Channels	1
Voltage - Isolation	3750Vrms
Current Transfer Ratio (Min)	50% @ 5mA
Current Transfer Ratio (Max)	150% @ 5mA
Turn On / Turn Off Time (Typ)	-
Rise / Fall Time (Typ)	3µs, 3µs
Input Type	DC
Output Type	Transistor
Voltage - Output (Max)	80V
Current - Output / Channel	80mA
Voltage - Forward (Vf) (Typ)	1.3V (Max)
Current - DC Forward (If) (Max)	50mA
Vce Saturation (Max)	400mV
Operating Temperature	-40°C ~ 100°C
Mounting Type	Surface Mount
Package / Case	4-SMD, Gull Wing
Supplier Device Package	4-Mini-Flat

HMA121B Datasheet

HMA121B Reviews

Bail*****night

April 1, 2023

★ ★ ★ ★ ★

Heisener.com is a good company. Pleasant transaction, communicative , thank you

Sel***** Bawa

March 27, 2023

★ ★ ★ ★ ★

This product is very easy to replace and solved my problem.

Emmy*****ters

March 21, 2023

★ ★ ★ ★ ★

Very easy to find and order what I wanted. Being able to add multiple items in various quantities from an online catalog page with a simple click.

Rich*****Glass

March 18, 2023

★ ★ ★ ★ ★

the parts work as they should. Amazing price perfect all round many thanks

Mus*****haman

March 14, 2023

★ ★ ★ ★ ★

Always meet my expectations with order and questions.

Aria*****over

March 12, 2023

★ ★ ★ ★ ★

Competitively priced set of diodes, tested as described. Quality is about what you would expect for no- or off-brand.

Madis*****ingra

March 2, 2023

★ ★ ★ ★ ★

Very good and very fast . 100% safe company

Jennif*****neider

February 27, 2023

★ ★ ★ ★ ★

Heisener parametric search for specific components is by far better than their competitors.

Jill*****Xiong

February 19, 2023

★ ★ ★ ★ ★

Reasonable prices, fast shipping, and the best customer service I've ever experienced! Absolutely will share it to my friends.

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HMA121B Packaging

HMA121B FAQ

1. How to order HMA121B 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 HMA121B is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the HMA121B. All suppliers must pass our qualification reviews before they can publish their products including HMA121B on Heisener; we pay more attention to the channels and quality of HMA121B products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
3. Are the HMA121B price and inventory displayed accurate?

The price and inventory of HMA121B 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 HMA121B?

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 HMA121B we delivered, we will accept the replacement or return of the HMA121B 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 HMA121B.

(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 HMA121B pin diagram, HMA121B datasheet?

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

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HMA121B 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

HMA121BR1

Fairchild Semiconductor Corporation

HMA121B

Fairchild Semiconductor Corporation

Part Number	Manufacturer	Description	Stock
HMA121BR1V	Fairchild Semiconductor Corporation	OPTOISO 3.75KV TRANSISTOR 4SMD	0
HMA121BR3V	Fairchild Semiconductor Corporation	OPTOISO 3.75KV TRANSISTOR 4SMD	0
HMA121BR4V	Fairchild Semiconductor Corporation	OPTOISO 3.75KV TRANSISTOR 4SMD	0
HMA121BR2	Fairchild Semiconductor Corporation	OPTOISO 3.75KV TRANSISTOR 4SMD	0
HMA121BV	Fairchild Semiconductor Corporation	OPTOISO 3.75KV TRANSISTOR 4SMD	0
HMA121BR3	Fairchild Semiconductor Corporation	OPTOISO 3.75KV TRANSISTOR 4SMD	0
HMA121BR1	Fairchild Semiconductor Corporation	OPTOISO 3.75KV TRANSISTOR 4SMD	0
HMA121BR4	Fairchild Semiconductor Corporation	OPTOISO 3.75KV TRANSISTOR 4SMD	0
HMA121B	Fairchild Semiconductor Corporation	N/A 1 CHANNEL TRANSISTOR OUTPUT OPTOCOUPLER MINIFLAT-4	10660
HMA121BR2V	Fairchild Semiconductor Corporation	OPTOISO 3.75KV TRANSISTOR 4SMD	0

Part Number	Manufacturer	Description	Stock
HMA121BR1V D# HMA121BR1V-ND	ON Semiconductor	OPTOISO 3.75KV TRANSISTOR 4SMD	0
HMA121BR3V D# HMA121BR3V-ND	ON Semiconductor	OPTOISO 3.75KV TRANSISTOR 4SMD	0
HMA121BR4V D# HMA121BR4V-ND	ON Semiconductor	OPTOISO 3.75KV TRANSISTOR 4SMD	0
HMA121BR2 D# HMA121BR2-ND	ON Semiconductor	OPTOISO 3.75KV TRANSISTOR 4SMD	0
HMA121BV D# HMA121BV-ND	ON Semiconductor	OPTOISO 3.75KV TRANSISTOR 4SMD	0
HMA121BR1 D# HMA121BR1-ND	ON Semiconductor	OPTOISO 3.75KV TRANSISTOR 4SMD	0
HMA121BR3 D# HMA121BR3-ND	ON Semiconductor	OPTOISO 3.75KV TRANSISTOR 4SMD	0
HMA121BR4 D# HMA121BR4-ND	ON Semiconductor	OPTOISO 3.75KV TRANSISTOR 4SMD	0
HMA121B D# HMA121B-ND	ON Semiconductor	OPTOISO 3.75KV TRANSISTOR 4SMD	0
HMA121BR2V D# HMA121BR2V-ND	ON Semiconductor	OPTOISO 3.75KV TRANSISTOR 4SMD	0

Part Number

Manufacturer

Description

Stock

HMA121B

Fairchild Semiconductor Corporation

OEM/CM Immediate delivery

10660

Part Number

Manufacturer

Description

Stock

HMA121BV

D# NS-HMA121BV

Fairchild Semiconductor Corporation

OEM/CM ONLY

4451

HMA121B

D# NS-HMA121B

Fairchild Semiconductor Corporation

OEM/CM ONLY

5381

Part Number

Manufacturer

Description

Stock

HMA121B

Fairchild Semiconductor Corporation

TRANSISTOR OUTPUT OPTOCOUPLER, 1-ELEMENT, 3750V ISOLATION

HMA121BR1

Fairchild Semiconductor Corporation

Part Number

Manufacturer

Description

Stock

HMA121B

Fairchild Semiconductor Corporation

OEM/CM ONLY

108

HMA121BR1

Fairchild Semiconductor Corporation

OEM/CM ONLY

Part Number

Manufacturer

Description

Stock

HMA121B

Fairchild Semiconductor Corporation

IN stock Immediate delivery

10675

Part Number

Manufacturer

Description

Stock

HMA121BR1

Fairchi

shipping today

HMA121BR2V

Fairchi

shipping today

Part Number

Manufacturer

Description

Stock

HMA121BR1

Fairchild Semiconductor Corporation

RFQ

4551

HMA121B

Fairchild Semiconductor Corporation

RFQ

13435

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HMA121B

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