Name: PT91-21B
Brand: Everlight Electronics Co Ltd
SKU: PT91-21B
Availability: InStock
Rating: 5 (128 reviews)

PT91-21B

For Reference Only

Part Number	PT91-21B
Manufacturer	Everlight Electronics Co Ltd
Description	PHOTOTRANSISTOR 1.9MM RND BK AXL
Datasheet	PT91-21B Specifications
Package	Axial, Flat Leads
ECAD
In Stock	5,256 piece(s)
Unit Price	Request a Quote
Lead Time	Can Ship Immediately
Estimated Delivery Time	May 9 - May 14 (Choose Expedited Shipping)
Request for Quotation

Payment Methods
Delivery Services

Part Number # PT91-21B (Optical Sensors - Phototransistors) is manufactured by Everlight Electronics Co Ltd 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 PT91-21B specifications/configurations, quotation, lead time, payment terms of further enquiries please have no hesitation to contact us. To process your RFQ, please add PT91-21B with quantity into BOM. Heisener.com does NOT require any registration to request a quote of PT91-21B.

PT91-21B Specifications

Manufacturer	Everlight Electronics Co Ltd
Category	Sensors, Transducers - Optical Sensors - Phototransistors
Package	Axial, Flat Leads
ECAD
Series	-
Voltage - Collector Emitter Breakdown (Max)	30V
Current - Collector (Ic) (Max)	20mA
Current - Dark (Id) (Max)	100nA
Wavelength	940nm
Viewing Angle	-
Power - Max	-
Mounting Type	Through Hole
Orientation	Top View
Operating Temperature	-25°C ~ 85°C (TA)
Package / Case	Axial, Flat Leads

PT91-21B Reviews

Isabe*****akshi

April 2, 2023

★ ★ ★ ★ ★

Sure appreciate your quality, expertise and professional service. Thank you so much!!!

Oliv*****rthy

March 28, 2023

★ ★ ★ ★ ★

Serves its purpose. All that's needed.

Cedr*****lfaro

March 28, 2023

★ ★ ★ ★ ★

I bought this for myself, and liked it so much. I also bought one for a friend.

Kad*****att

March 17, 2023

★ ★ ★ ★ ★

Fast delivery, good quality, 100% satisfacted

Tommy *****andran

March 11, 2023

★ ★ ★ ★ ★

arrived well within time bracket, put this firm on my suppliers list, many thanks

Mari*****ivera

March 8, 2023

★ ★ ★ ★ ★

These are the most popular variety of components of different types!

Noe*****osla

March 5, 2023

★ ★ ★ ★ ★

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

Mitc***** Heath

March 5, 2023

★ ★ ★ ★ ★

Excellent Seller, Great Products, Fast Reliable Service.

Adle*****rkins

March 1, 2023

★ ★ ★ ★ ★

Your prices are low and your website is customer-use friendly.

Write a Review

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PT91-21B Packaging

PT91-21B FAQ

1. How to order PT91-21B 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 PT91-21B is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the PT91-21B. All suppliers must pass our qualification reviews before they can publish their products including PT91-21B on Heisener; we pay more attention to the channels and quality of PT91-21B products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
3. Are the PT91-21B price and inventory displayed accurate?

The price and inventory of PT91-21B 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 PT91-21B?

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 PT91-21B we delivered, we will accept the replacement or return of the PT91-21B 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 PT91-21B.

(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 PT91-21B pin diagram, PT91-21B datasheet?

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

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PT91-21B 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

PT91-21B-TR7

D# V36:1790_14831700

Everlight Electronics Co Ltd

Phototransistor IR Chip Silicon 940nm 2-Pin Mini-SMD T/R

RoHS: Compliant

Part Number	Manufacturer	Description	Stock
PT91-21B-TR10 D# PT91-21B/TR10	Everlight Electronics Co Ltd	Phototransistor IR Chip Silicon 940nm 2-Pin Miniature SMD T/R - Tape and Reel (Alt: PT91-21B/TR10) RoHS: Compliant	0
PT91-21B/F10 D# PT91-21B/F10	Everlight Electronics Co Ltd	Phototransistor IR Chip Silicon 940nm 2-Pin SMD - Bulk (Alt: PT91-21B/F10) RoHS: Compliant	0
PT91-21B D# PT91-21B	Everlight Electronics Co Ltd	Phototransistor IR Chip Silicon 940nm 2-Pin Miniature SMD Bag - Bulk (Alt: PT91-21B) RoHS: Compliant	0

Part Number

Manufacturer

Description

Stock

PT91-21B-TR7

D# PT91-21B/TR7

Everlight Electronics Co Ltd

Phototransistor IR Chip Silicon 940nm 2-Pin Miniature SMD T/R (Alt: PT91-21B/TR7)

Part Number	Manufacturer	Description	Stock
PT91-21B-TR10 D# 3291210050	Everlight Electronics Co Ltd	Phototransistor IR Chip Silicon 940nm 2-Pin Miniature SMD T/R (Alt: 3291210050)	0
PT91-21B D# 3291210003	Everlight Electronics Co Ltd	Phototransistor IR Chip Silicon 940nm 2-Pin Miniature SMD Bag (Alt: 3291210003)	0
PT91-21B-TR7 D# 3291210350	Everlight Electronics Co Ltd	Phototransistor IR Chip Silicon 940nm 2-Pin Miniature SMD T/R (Alt: 3291210350)	0
PT91-21B/L41/TR7 D# S20A000067	Everlight Electronics Co Ltd	(Alt: S20A000067)	0

Part Number	Manufacturer	Description	Stock
PT91-21B/TR10	Everlight Electronics Co Ltd	Infrared Phototransistor_1.9mm Round dome_leadframe type	0
PT91-21B	Everlight Electronics Co Ltd	Infrared Phototransistor_1.9mm Round dome_leadframe type	0
PT91-21B/TR7	Everlight Electronics Co Ltd	- Tape and Reel	0
PT91-21B/TR9	Everlight Electronics Co Ltd	PHOTOTRANS 1.9MM RND BLACK YOKE	1000

Part Number	Manufacturer	Description	Stock
PT91-21B/TR7	Everlight Electronics Co Ltd	20mA 100nA 940nm 30V SMD Infrared Receivers RoHS	14640
PT91-21B	Everlight Electronics Co Ltd	20mA 100nA 940nm 30V Through Hole Infrared Receivers RoHS	1055
PT91-21B/TR10	Everlight Electronics Co Ltd	20mA 100nA 940nm 30V SMD Infrared Receivers RoHS	1210

Part Number

Manufacturer

Description

Stock

PT9121BF10CATG

Everlight Electronics Co Ltd

RoHS: Compliant

Part Number	Manufacturer	Description	Stock
PT91-21B/TR7 D# 1080-1393-1-ND	Everlight Electronics Co Ltd	SENSOR PHOTO 940NM TOP VIEW 2SMD	2865
PT91-21B D# 1080-1165-ND	Everlight Electronics Co Ltd	SENSOR PHOTO 940NM TOP VIEW AXL	2555
PT91-21B/TR9 D# 1080-1394-2-ND	Everlight Electronics Co Ltd	SENSOR PHOTO 940NM TOP VIEW 2SMD	1000
PT91-21B/TR10 D# 1080-1392-1-ND	Everlight Electronics Co Ltd	SENSOR PHOTO 940NM TOP VIEW 2SMD	1530

Part Number

Manufacturer

Description

Stock

PT91-21B/TR1

Everlight Electronics Co Ltd

In stock shipping within 2days

1000

Part Number	Manufacturer	Description	Stock
PT91-21B D# C115410	Everlight Electronics Co Ltd		1055
PT91-21B/TR10 D# C131246	Everlight Electronics Co Ltd		1210
PT91-21B/TR7 D# C72060	Everlight Electronics Co Ltd		14640

Part Number

Manufacturer

Description

Stock

PT91-21BTR7

Everlight Electronics Co Ltd

in stock - can ship the same day

728

Part Number	Manufacturer	Description	Stock
PT91-21B	Everlight Electronics Co Ltd	OEM/CM Immediate delivery	75330
PT91-21B/TR7	Everlight Electronics Co Ltd	OEM/CM Immediate delivery	258077
PT91-21B/TR10	Everlight Electronics Co Ltd	OEM/CM Immediate delivery	125000
PT91-21B/TR9	Everlight Electronics Co Ltd	OEM/CM Immediate delivery	35546

Part Number

Manufacturer

Description

Stock

PT91-21B

D# XSKDRABV0050151

Everlight Electronics Co Ltd

11000

Part Number

Manufacturer

Description

Stock

PT91-21B/TR10

D# NS-PT91-21B/TR10

Everlight Electronics Co Ltd

OEM/CM ONLY

6448

Part Number

Manufacturer

Description

Stock

PT91-21B/L41/TR7

D# IR6020

Everlight Electronics Co Ltd

PHOTOTRANSISTOR 940NM TOPVIEW

RoHS: Compliant

Part Number	Manufacturer	Description	Stock
PT9121BTR7	Everlight Electronics Co Ltd	OEM/CM ONLY	744
PT9121BF10CATG	Everlight Electronics Co Ltd	OEM/CM ONLY	19016
PT9121B	Everlight Electronics Co Ltd	OEM/CM ONLY	2710
PT9121B/L369/TR10	Everlight Electronics Co Ltd	OEM/CM ONLY	2003
PT9121B/TR9	Everlight Electronics Co Ltd	OEM/CM ONLY	1095
PT9121B/TR10	Everlight Electronics Co Ltd	OEM/CM ONLY	64016

Part Number	Manufacturer	Description	Stock
PT91-21B/TR10	Everlight Electronics Co Ltd	IN stock Immediate delivery	124985
PT91-21B/TR7	Everlight Electronics Co Ltd	IN stock Immediate delivery	258062
PT91-21B	Everlight Electronics Co Ltd	IN stock Immediate delivery	75315
PT91-21B/TR9	Everlight Electronics Co Ltd	IN stock Immediate delivery	35531

Part Number	Manufacturer	Description	Stock
PT91-21B	Everlight Electronics Co Ltd	shipping today	75335
PT91-21B/TR7	Everlight Electronics Co Ltd	shipping today	153992
PT91-21B/RT7	Everlight Electronics Co Ltd	shipping today	8970
PT91-21B/L369/TR10	Everlight Electronics Co Ltd	shipping today	125468
PT91-21B/TR8	Everlight Electronics Co Ltd	shipping today	11955
PT91-21B/F10	Everlight Electronics Co Ltd	shipping today	14935
PT91-21B/TR9	Everlight Electronics Co Ltd	shipping today	35551
PT91-21B/TR10	Everlight Electronics Co Ltd	shipping today	56589

Part Number	Manufacturer	Description	Stock
PT91-21B/TR9	Everlight Electronics Co Ltd	RFQ	8764
PT91-21B-TR9	Everlight Electronics Co Ltd	RFQ	7996
PT91-21B/TR10	Everlight Electronics Co Ltd	RFQ	10249
PT91-21B/F10	Everlight Electronics Co Ltd	RFQ	5669

Part Number

Manufacturer

Description

Stock

PT91-21B/TR10

Everlight Electronics Co Ltd

PHOTOTRANS 1.9MM RND BLACK ZBEND

50000

PT91-21B/TR7

Everlight Electronics Co Ltd

1.9mm Round Subminiature Gull Wing Lead Phototransistor

87843

Quick Inquiry

PT91-21B

Certified Quality

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