Name: H21B3
Brand: Fairchild/ON Semiconductor
SKU: H21B3
Availability: InStock
Rating: 5 (80 reviews)

H21B3

For Reference Only

Part Number	H21B3
Manufacturer	Fairchild/ON Semiconductor
Description	SENSOR OPTO SLOT 3MM DARL THRU
Datasheet	H21B3 Specifications
Package	PCB Mount
ECAD
In Stock	101,316 piece(s)
Unit Price	Request a Quote
Lead Time	Can Ship Immediately
Estimated Delivery Time	Apr 29 - May 4 (Choose Expedited Shipping)
Request for Quotation

Payment Methods
Delivery Services

Part Number # H21B3 (Optical Sensors - Photointerrupters - Slot Type - Transistor 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 H21B3 specifications/configurations, quotation, lead time, payment terms of further enquiries please have no hesitation to contact us. To process your RFQ, please add H21B3 with quantity into BOM. Heisener.com does NOT require any registration to request a quote of H21B3.

H21B3 Specifications

Manufacturer	Fairchild/ON Semiconductor
Category	Sensors, Transducers - Optical Sensors - Photointerrupters - Slot Type - Transistor Output
Package	PCB Mount
ECAD
Series	-
Sensing Distance	0.118" (3mm)
Sensing Method	Transmissive
Output Configuration	Photodarlington
Current - DC Forward (If) (Max)	50mA
Current - Collector (Ic) (Max)	40mA
Voltage - Collector Emitter Breakdown (Max)	30V
Response Time	7µs, 45µs
Operating Temperature	-55°C ~ 100°C
Mounting Type	Through Hole
Package / Case	PCB Mount

H21B3 Reviews

Axl*****ffman

March 30, 2023

★ ★ ★ ★ ★

Heisener is awesome! Never any issues whatsoever. Product selection is good and delivery is on time.

Zach*****Mann

March 24, 2023

★ ★ ★ ★ ★

I can get a patience and respect for each order. Thank you!

Grays*****mmerman

February 27, 2023

★ ★ ★ ★ ★

Received Quickly. Excellent Communication. Capacitors Look Excellent

Lin*****Klein

February 22, 2023

★ ★ ★ ★ ★

H21B3 arrived in great condition, very happy, Would buy again. A++ . thank you!!

Write a Review

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H21B3 Packaging

H21B3 FAQ

1. How to order H21B3 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 H21B3 is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the H21B3. All suppliers must pass our qualification reviews before they can publish their products including H21B3 on Heisener; we pay more attention to the channels and quality of H21B3 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
3. Are the H21B3 price and inventory displayed accurate?

The price and inventory of H21B3 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 H21B3?

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 H21B3 we delivered, we will accept the replacement or return of the H21B3 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 H21B3.

(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 H21B3 pin diagram, H21B3 datasheet?

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

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H21B3 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

H21B3

SPC Multicomp

CAP, MLCC, X7R, 330PF, 25V, 0805

2400

Part Number

Manufacturer

Description

Stock

H21B3

D# H21B3-ND

ON Semiconductor

SENSOR OPT SLOT DARL PC PINS

Part Number	Manufacturer	Description	Stock
MCSH21B332K500CT D# 1856482	SPC Multicomp	CAP, 3300PF, 50V, 10%, X7R, 0805 RoHS: Compliant Min Qty: 5 Container: Cut Tape	1544
MCSH21B332K101CT D# 1856504RL	SPC Multicomp	CAP, 3300PF, 100V, 10%, X7R, 0805 RoHS: Compliant Min Qty: 5 Container: Reel	0
MCSH21B333K500CT D# 1856488RL	SPC Multicomp	CAP, 0.033F, 50V, 10%, X7R, 0805 RoHS: Compliant Min Qty: 5 Container: Reel	0
MCSH21B333K250CT D# 1856464	SPC Multicomp	CAP, 0.033F, 25V, 10%, X7R, 0805 RoHS: Compliant Min Qty: 100 Container: Cut Tape	0
MCSH21B333K100CT D# 1856417	SPC Multicomp	CAP, 0.033F, 10V, 10%, X7R, 0805 RoHS: Compliant Min Qty: 1 Container: Cut Tape	0
MCSH21B333K160CT D# 1856441	SPC Multicomp	CAP, 0.033F, 16V, 10%, X7R, 0805 RoHS: Compliant Min Qty: 100 Container: Cut Tape	0
MCSH21B331K101CT D# 1856498	SPC Multicomp	CAP, 330PF, 100V, 10%, X7R, 0805 RoHS: Compliant Min Qty: 5 Container: Cut Tape	0
MCSH21B333K101CT D# 1856512	SPC Multicomp	CAP, 0.033F, 100V, 10%, X7R, 0805 RoHS: Compliant Min Qty: 100 Container: Cut Tape	0
MCSH21B332K160CT D# 1856435RL	SPC Multicomp	CAP, 3300PF, 16V, 10%, X7R, 0805 RoHS: Compliant Min Qty: 5 Container: Reel	0
MCSH21B331K500CT D# 1856474	SPC Multicomp	CAP, 330PF, 50V, 10%, X7R, 0805 RoHS: Compliant Min Qty: 5 Container: Cut Tape	0

Part Number

Manufacturer

Description

Stock

H21B3

Fairchild Semiconductor Corporation

OEM/CM Immediate delivery

1843

Part Number	Manufacturer	Description	Stock
SH21B332K101CT D# WT0000000019988	Walsin Technology Corporation	0805 X7R 3300pF 10% 100V	0
SH21B331K100CT D# WT0000000019978	Walsin Technology Corporation	0805 X7R 330pF 10% 10V	0
SH21B392K160CT D# WT0000000020012	Walsin Technology Corporation	0805 X7R 3900pF 10% 16V	0
SH21B331K201CT D# WT0000000019981	Walsin Technology Corporation	0805 X7R 330pF 10% 200V	0
SH21B332K500CT D# WT0000000019993	Walsin Technology Corporation	0805 X7R 3300pF 10% 50V	0
SH21B392K201CT D# WT0000000020013	Walsin Technology Corporation	0805 X7R 3900pF 10% 200V	0
SH21B332K250CT D# WT0000000019991	Walsin Technology Corporation	0805 X7R 3300pF 10% 25V	0
SH21B391K201CT D# WT0000000020004	Walsin Technology Corporation	0805 X7R 390pF 10% 200V	0
SH21B391K631CT D# WT0000000020009	Walsin Technology Corporation	0805 X7R 390pF 10% 630V	0
SH21B391K250CT D# WT0000000020005	Walsin Technology Corporation	0805 X7R 390pF 10% 25V	0
SH21B392K500CT D# WT0000000020016	Walsin Technology Corporation	0805 X7R 3900pF 10% 50V	0
SH21B393K160CT D# WT0000000020019	Walsin Technology Corporation	0805 X7R 0.039uF 10% 16V	0
SH21B331K101CT D# WT0000000019979	Walsin Technology Corporation	0805 X7R 330pF 10% 100V	0
SH21B393K101CT D# WT0000000020018	Walsin Technology Corporation	0805 X7R 0.039uF 10% 100V	0
SH21B393K100CT D# WT0000000020017	Walsin Technology Corporation	0805 X7R 0.039uF 10% 10V	0

Part Number	Manufacturer	Description	Stock
MCSH21B332K250CT D# 23T7436	SPC Multicomp	Multilayer Ceramic Capacitor, MCCA Series, 3300 pF, 10%, X7R, 25 V, 0805 [2012 Metric] RoHS Compliant: Yes RoHS: Compliant Min Qty: 5 Container: Cut Tape	321
MCSH21B332K101CT D# 23T7478	SPC Multicomp	Multilayer Ceramic Capacitor, MCCA Series, 3300 pF, 10%, X7R, 100 V, 0805 [2012 Metric] RoHS Compliant: Yes RoHS: Compliant Min Qty: 5 Container: Cut Tape	2800
MCSH21B333K500CT D# 03AC3014	SPC Multicomp	CAP, 0.033µF, 50V, 10%, X7R, 0805, REEL, Capacitance:33000pF, Voltage Rating:50V, Ceramic Capacitor Case:0805 [2012 Metric], Capacitance Tolerance:± 10%, Dielectric Characteristic:X7R, Product Range:MCSH Series, Operating TemperatureRoHS Compliant: Yes RoHS: Compliant Min Qty: 3000 Container: TAPE & REEL - FULL	0
MCSH21B332K160CT D# 23T7415	SPC Multicomp	Multilayer Ceramic Capacitor, MCCA Series, 3300 pF, 10%, X7R, 16 V, 0805 [2012 Metric] RoHS Compliant: Yes RoHS: Compliant Min Qty: 5 Container: Cut Tape	2710
MCSH21B331K100CT D# 23T7388	SPC Multicomp	Multilayer Ceramic Capacitor, MCCA Series, 330 pF, 10%, X7R, 10 V, 0805 [2012 Metric] RoHS Compliant: Yes RoHS: Compliant Min Qty: 5 Container: Cut Tape	2475
H21B3 D# 84F217	ON Semiconductor	OPTOSWITCH, Sensor Output:Darlington Phototransistor, Sensor Mounting:Through Hole, Gap Width:3.15mm, Aperture Width:0.889mm, Forward Current If:50mA, Reverse Voltage Vr:6V, Forward Voltage:1.7V, Product Range:-, Input Current:60mA RoHS Compliant: Yes RoHS: Compliant Min Qty: 50 Container: Bulk	0
MCSH21B332K500CT D# 23T7457	SPC Multicomp	Multilayer Ceramic Capacitor, MCCA Series, 3300 pF, 10%, X7R, 50 V, 0805 [2012 Metric] RoHS Compliant: Yes RoHS: Compliant Min Qty: 5 Container: Cut Tape	1469

Part Number

Manufacturer

Description

Stock

H21B3

D# NS-H21B3

Fairchild Semiconductor Corporation

OEM/CM ONLY

2366

HEIH21B3

D# NS-HEIH21B3

HEI Inc

OEM/CM ONLY

2342

Part Number	Manufacturer	Description	Stock
H21B333M D# H21B333M	Bishop Electronics Corporation		0
H21B332M D# H21B332M	Bishop Electronics Corporation		0
H21B3 D# H21B3	General Electric Company	Inventory R	5
H21B334M D# H21B334M	Bishop Electronics Corporation		0

Part Number	Manufacturer	Description	Stock
MCSH21B332K250CT	SPC Multicomp	OEM/CM ONLY	866
MCSH21B332K500CT	SPC Multicomp	OEM/CM ONLY	1639
SH21B331K500CT	WAL	OEM/CM ONLY	9016
MCSH21B332K101CT	SPC Multicomp	OEM/CM ONLY	2910
MCSH21B333K500CT	SPC Multicomp	OEM/CM ONLY	1928
H21B3	Fairchild Semiconductor Corporation	OEM/CM ONLY	77
MCSH21B331K100CT	SPC Multicomp	OEM/CM ONLY	2780
MCSH21B332K160CT	SPC Multicomp	OEM/CM ONLY	2805

Part Number

Manufacturer

Description

Stock

H21B3

Fairchild Semiconductor Corporation

IN stock Immediate delivery

1858

Part Number

Manufacturer

Description

Stock

H21B3

FAIRCHIL D

shipping today

91825

Part Number

Manufacturer

Description

Stock

H21B3

Harris Semiconductor

RFQ

4664

Part Number

Manufacturer

Description

Stock

H21B3

Fairchild Semiconductor Corporation

SENSOR OPTO SLOT 3MM DARL THRU

10343

Part Number	Manufacturer	Description	Stock
MCSH21B332K101CT D# 1856504RL	SPC Multicomp	CAP, 3300PF, 100V, 10%, X7R, 0805 RoHS: Compliant Min Qty: 100 Container: Reel	0
MCSH21B333K500CT D# 2666265	SPC Multicomp	CAP, 0.033F, 50V, 10%, X7R, 0805, REEL RoHS: Compliant Min Qty: 3000 Container: Reel	0
MCSH21B333K250CT D# 1856464	SPC Multicomp	CAP, 0.033F, 25V, 10%, X7R, 0805 RoHS: Compliant Min Qty: 100 Container: Cut Tape	0
MCSH21B333K100CT D# 1856417	SPC Multicomp	CAP, 0.033F, 10V, 10%, X7R, 0805 RoHS: Compliant Min Qty: 1 Container: Cut Tape	0
MCSH21B333K101CT D# 1856512	SPC Multicomp	CAP, 0.033F, 100V, 10%, X7R, 0805 RoHS: Compliant Min Qty: 100 Container: Cut Tape	0
MCSH21B332K160CT D# 1856435	SPC Multicomp	CAP, 3300PF, 16V, 10%, X7R, 0805 RoHS: Compliant Min Qty: 5 Container: Cut Tape	2710
MCSH21B331K500CT D# 1856474RL	SPC Multicomp	CAP, 330PF, 50V, 10%, X7R, 0805 RoHS: Compliant Min Qty: 100 Container: Reel	0
MCSH21B331K101CT D# 1856498RL	SPC Multicomp	CAP, 330PF, 100V, 10%, X7R, 0805 RoHS: Compliant Min Qty: 100 Container: Reel	0
MCSH21B332K500CT D# 1856482RL	SPC Multicomp	CAP, 3300PF, 50V, 10%, X7R, 0805 RoHS: Compliant Min Qty: 5 Container: Reel	0

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H21B3

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