Name: H21B4
Brand: Fairchild/ON Semiconductor
SKU: H21B4
Availability: InStock
Rating: 5 (184 reviews)

H21B4

For Reference Only

Part Number	H21B4
Manufacturer	Fairchild/ON Semiconductor
Description	SENSOR OPTO SLOT 3MM DARL THRU
Datasheet	H21B4 Specifications
Package	PCB Mount
ECAD
In Stock	6,588 piece(s)
Unit Price	Request a Quote
Lead Time	To be Confirmed
Estimated Delivery Time	Apr 29 - May 4 (Choose Expedited Shipping)
Request for Quotation

Payment Methods
Delivery Services

Part Number # H21B4 (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 H21B4 specifications/configurations, quotation, lead time, payment terms of further enquiries please have no hesitation to contact us. To process your RFQ, please add H21B4 with quantity into BOM. Heisener.com does NOT require any registration to request a quote of H21B4.

H21B4 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)	55V
Response Time	7µs, 45µs
Operating Temperature	-55°C ~ 100°C
Mounting Type	Through Hole
Package / Case	PCB Mount

H21B4 Reviews

Mead*****ordan

April 1, 2023

★ ★ ★ ★ ★

Worked perfectly for my application. Worked like a charm!

Mig***** Vala

March 29, 2023

★ ★ ★ ★ ★

Heisener has everything! Each product is easy to search and navigate. No minimum quantities. Fast shipping!

Adel*****Taneja

March 26, 2023

★ ★ ★ ★ ★

Great kit, cost half the price of other stores. Includes most items that someone would need.

Write a Review

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H21B4 Packaging

H21B4 FAQ

1. How to order H21B4 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 H21B4 is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the H21B4. All suppliers must pass our qualification reviews before they can publish their products including H21B4 on Heisener; we pay more attention to the channels and quality of H21B4 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
3. Are the H21B4 price and inventory displayed accurate?

The price and inventory of H21B4 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 H21B4?

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 H21B4 we delivered, we will accept the replacement or return of the H21B4 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 H21B4.

(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 H21B4 pin diagram, H21B4 datasheet?

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

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H21B4 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

SH21B473K101CT

D# E02:0323_07074666

Walsin Technology Corporation

Cap Ceramic 0.047uF 100V X7R 10% Pad SMD 0805 Soft Termination 125°C Automotive T/R

RoHS: Compliant

Part Number	Manufacturer	Description	Stock
H21B472K	TT electronics / BI Technologies		172
SH21B473K500CT	Walsin Technology Corporation		96000
SH21B472K101CT	Walsin Technology Corporation		6000

Part Number

Manufacturer

Description

Stock

H21B4

SPC Multicomp

CAP, MLCC, X7R, 4.7NF, 10V, 0805

Part Number	Manufacturer	Description	Stock
FCRCSH-21B-4 D# FCRCSH-21B-4-ND	Essentra Components	CBL ROUT/CLAMP SERR 2.98"L 1/2"	0
H21B4 D# H21B4-ND	ON Semiconductor	SENSOR OPT SLOT DARL PC PINS	0
FCRCSH-21B-4A-RT D# RPC2266-ND	Essentra Components	CBL CLIP FLAT NATURAL ADHESIVE	2382

Part Number

Manufacturer

Description

Stock

H21B4

Fairchild Semiconductor Corporation

In stock shipping within 2days

12260

Part Number	Manufacturer	Description	Stock
MCSH21B472K101CT D# 1856505RL	SPC Multicomp	CAP, 4700PF, 100V, 10%, X7R, 0805 RoHS: Compliant Min Qty: 5 Container: Reel	0
MCSH21B472K100CT D# 1856412	SPC Multicomp	CAP, 4700PF, 10V, 10%, X7R, 0805 RoHS: Compliant Min Qty: 100 Container: Cut Tape	0
MCSH21B471K101CT D# 1856499RL	SPC Multicomp	CAP, 470PF, 100V, 10%, X7R, 0805 RoHS: Compliant Min Qty: 5 Container: Reel	0
MCSH21B472K250CT D# 1856459RL	SPC Multicomp	CAP, 4700PF, 25V, 10%, X7R, 0805 RoHS: Compliant Min Qty: 5 Container: Reel	0
MCSH21B471K160CT D# 1856429RL	SPC Multicomp	CAP, 470PF, 16V, 10%, X7R, 0805 RoHS: Compliant Min Qty: 5 Container: Reel	0
MCSH21B473K500CT D# 1856489	SPC Multicomp	CAP, 0.047F, 50V, 10%, X7R, 0805 RoHS: Compliant Min Qty: 5 Container: Cut Tape	8520
MCSH21B473K160CT D# 1856442	SPC Multicomp	CAP, 0.047F, 16V, 10%, X7R, 0805 RoHS: Compliant Min Qty: 100 Container: Cut Tape	0
MCSH21B473K101CT D# 1856513	SPC Multicomp	CAP, 0.047F, 100V, 10%, X7R, 0805 RoHS: Compliant Min Qty: 5 Container: Cut Tape	5665

Part Number

Manufacturer

Description

Stock

H21B4

Texas Instruments

OEM/CM ONLY

594

Part Number

Manufacturer

Description

Stock

H21B4

Fairchild Semiconductor Corporation

OEM/CM Immediate delivery

2103

Part Number

Manufacturer

Description

Stock

SH21B473K101CT

D# 791-SH21B473K101CT

Walsin Technology Corporation

Multilayer Ceramic Capacitors MLCC - SMD/SMT 0.047uF 10% 100V Soft Termination

RoHS: Compliant

986

SH21B473K500CT

D# 791-SH21B473K500CT

Walsin Technology Corporation

Multilayer Ceramic Capacitors MLCC - SMD/SMT 0.047uF 10% 50V Soft Termination

RoHS: Compliant

2000

Part Number	Manufacturer	Description	Stock
SH21B471K631CT D# WT0000000020030	Walsin Technology Corporation	0805 X7R 470pF 10% 630V	0
SH21B471K500CT D# WT0000000020028	Walsin Technology Corporation	0805 X7R 470pF 10% 50V	0
SH21B473K250CT D# WT0000000020041	Walsin Technology Corporation	0805 X7R 0.047uF 10% 25V	0
SH21B472K100CT D# WT0000000020031	Walsin Technology Corporation	0805 X7R 4700pF 10% 10V	0
SH21B473K160CT D# WT0000000020040	Walsin Technology Corporation	0805 X7R 0.047uF 10% 16V	0
SH21B472K251CT D# WT0000000020036	Walsin Technology Corporation	0805 X7R 4700pF 10% 250V	0
SH21B471K250CT D# WT0000000020026	Walsin Technology Corporation	0805 X7R 470pF 10% 25V	0
SH21B472K250CT D# WT0000000020035	Walsin Technology Corporation	0805 X7R 4700pF 10% 25V	0
SH21B473K100CT D# WT0000000020038	Walsin Technology Corporation	0805 X7R 0.047uF 10% 10V	0
SH21B472K160CT D# WT0000000020033	Walsin Technology Corporation	0805 X7R 4700pF 10% 16V	0
SH21B471K101CT D# WT0000000020023	Walsin Technology Corporation	0805 X7R 470pF 10% 100V	0
SH21B472K101CT D# WT0000000020032	Walsin Technology Corporation	0805 X7R 4700pF 10% 100V	0
SH21B472K201CT D# WT0000000020034	Walsin Technology Corporation	0805 X7R 4700pF 10% 200V	0
SH21B471K201CT D# WT0000000020025	Walsin Technology Corporation	0805 X7R 470pF 10% 200V	0
SH21B471K251CT D# WT0000000020027	Walsin Technology Corporation	0805 X7R 470pF 10% 250V	0

Part Number	Manufacturer	Description	Stock
MCSH21B471K250CT D# 23T7431	SPC Multicomp	Multilayer Ceramic Capacitor, MCCA Series, 470 pF, 10%, X7R, 25 V, 0805 [2012 Metric] RoHS Compliant: Yes RoHS: Compliant Min Qty: 5 Container: Cut Tape	3119
MCSH21B471K101CT D# 23T7473	SPC Multicomp	Multilayer Ceramic Capacitor, MCCA Series, 470 pF, 10%, X7R, 100 V, 0805 [2012 Metric] RoHS Compliant: Yes RoHS: Compliant Min Qty: 5 Container: Cut Tape	1271
MCSH21B472K160CT D# 23T7416	SPC Multicomp	Multilayer Ceramic Capacitor, MCCA Series, 4700 pF, 10%, X7R, 16 V, 0805 [2012 Metric] RoHS Compliant: Yes RoHS: Compliant Min Qty: 5 Container: Cut Tape	1562
MCSH21B471K160CT D# 23T7410	SPC Multicomp	Multilayer Ceramic Capacitor, MCCA Series, 470 pF, 10%, X7R, 16 V, 0805 [2012 Metric] RoHS Compliant: Yes RoHS: Compliant Min Qty: 5 Container: Cut Tape	851
MCSH21B472K250CT D# 23T7437	SPC Multicomp	Multilayer Ceramic Capacitor, MCCA Series, 4700 pF, 10%, X7R, 25 V, 0805 [2012 Metric] RoHS Compliant: Yes RoHS: Compliant Min Qty: 5 Container: Cut Tape	1081
MCSH21B473K500CT D# 23T7464	SPC Multicomp	Multilayer Ceramic Capacitor, MCCA Series, 0.047 F, 10%, X7R, 50 V, 0805 [2012 Metric] RoHS Compliant: Yes RoHS: Compliant Min Qty: 5 Container: Cut Tape	8520
MCSH21B472K500CT D# 23T7458	SPC Multicomp	CERAMIC CAPACITOR ROHS COMPLIANT: YES RoHS: Compliant Min Qty: 1 Container: Cut Tape	3000
MCSH21B473K101CT D# 23T7485	SPC Multicomp	Multilayer Ceramic Capacitor, MCCA Series, 0.047 F, 10%, X7R, 100 V, 0805 [2012 Metric] RoHS Compliant: Yes RoHS: Compliant Min Qty: 5 Container: Cut Tape	5665
MCSH21B472K101CT D# 23T7479	SPC Multicomp	Multilayer Ceramic Capacitor, MCCA Series, 4700 pF, 10%, X7R, 100 V, 0805 [2012 Metric] RoHS Compliant: Yes RoHS: Compliant Min Qty: 5 Container: Cut Tape	0

Part Number

Manufacturer

Description

Stock

FCRCSH-21B-4A-RT

D# NS-FCRCSH-21B-4A-RT

Richco

OEM/CM ONLY

9933

H21B4

D# NS-H21B4

Fairchild Semiconductor Corporation

OEM/CM ONLY

1492

Part Number

Manufacturer

Description

Stock

H21B472K

TT electronics / BI Technologies

137

Part Number	Manufacturer	Description	Stock
H21B473M D# H21B473M	Bishop Electronics Corporation		0
H21B472M D# H21B472M	Bishop Electronics Corporation		0
H21B474M D# H21B474M	Bishop Electronics Corporation		0

Part Number	Manufacturer	Description	Stock
MCSH21B473K101CT	SPC Multicomp	OEM/CM ONLY	96
SH21B471K500CT	Walsin Technology Corporation	OEM/CM ONLY	24016
SH21B472K500CT	Walsin Technology Corporation	OEM/CM ONLY	331
FCRCSH21B4ART	Richco	OEM/CM ONLY	2477
H21B472K	TT electronics / BI Technologies	OEM/CM ONLY	188
SH21B474K500CT	Walsin Technology Corporation	OEM/CM ONLY	174016
MCSH21B471K250CT	SPC Multicomp	OEM/CM ONLY	3324
MCSH21B472K160CT	SPC Multicomp	OEM/CM ONLY	1762
MCSH21B471K101CT	SPC Multicomp	OEM/CM ONLY	1721
MCSH21B471K160CT	SPC Multicomp	OEM/CM ONLY	1196
MCSH21B472K250CT	SPC Multicomp	OEM/CM ONLY	1491
SH21B473K500CT	Walsin Technology Corporation	OEM/CM ONLY	96016
SH21B472K101CT	Walsin Technology Corporation	OEM/CM ONLY	6016
MCSH21B472K500CT	SPC Multicomp	OEM/CM ONLY	9711

Part Number

Manufacturer

Description

Stock

H21B4

Fairchild Semiconductor Corporation

IN stock Immediate delivery

2118

Part Number

Manufacturer

Description

Stock

H21B4

Fairchild Semiconductor Corporation

shipping today

2108

Part Number

Manufacturer

Description

Stock

SH21B473K101CT

D# 52464547

Walsin Technology Corporation

Cap Ceramic 0.047uF 100V X7R 10% Pad SMD 0805 Soft Termination 125°C Automotive T/R

RoHS: Compliant

Part Number	Manufacturer	Description	Stock
MCSH21B472K160CT D# 1856436	SPC Multicomp	CAP, 4700PF, 16V, 10%, X7R, 0805 RoHS: Compliant Min Qty: 5 Container: Cut Tape	1662
MCSH21B471K160CT D# 1856429RL	SPC Multicomp	CAP, 470PF, 16V, 10%, X7R, 0805 RoHS: Compliant Min Qty: 5 Container: Reel	0
MCSH21B471K101CT D# 1856499	SPC Multicomp	CAP, 470PF, 100V, 10%, X7R, 0805 RoHS: Compliant Min Qty: 5 Container: Cut Tape	1271
MCSH21B472K250CT D# 1856459	SPC Multicomp	CAP, 4700PF, 25V, 10%, X7R, 0805 RoHS: Compliant Min Qty: 5 Container: Cut Tape	1081
MCSH21B473K500CT D# 1856489RL	SPC Multicomp	CAP, 0.047F, 50V, 10%, X7R, 0805 RoHS: Compliant Min Qty: 1 Container: Reel	0
MCSH21B472K500CT D# 1856483RL	SPC Multicomp	CAP, 4700PF, 50V, 10%, X7R, 0805 RoHS: Compliant Min Qty: 5 Container: Reel	0
MCSH21B473K101CT D# 1856513	SPC Multicomp	CAP, 0.047F, 100V, 10%, X7R, 0805 RoHS: Compliant Min Qty: 100 Container: Cut Tape	5665

Quick Inquiry

H21B4

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