Osram To-39 Metal Can Silicon Differential Photodiode SFH221

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Product Description:

1 Samples offer 
2 Trade reference for quality confirm 
3 60 days warranty 
4 Large stock 
5 High reputation 



SFH 221


SFH 221, Lead (Pb) Free

Product Photossfh 221
Catalog DrawingsSFH221 Side
Standard Package40
CategorySensors, Transducers
Color - Enhanced-
Spectral Range400nm ~ 1100nm
Diode Type-
Responsivity @ nm0.55 A/W @ 900nm
Response Time500ns
Voltage - DC Reverse (Vr) (Max)10V
Current - Dark (Typ)10nA
Active Area2.2mm x 0.7mm
Viewing Angle110°
Operating Temperature-40°C ~ 125°C
Package / CaseTO-39-4 Metal Can
Other Names475-1431






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1. We will arrange the delivery as soon as receiving your payment.

2. The goods will be deliveried by UPS/DHL/TNT/EMS/Fedex.Also, you can find your own forwarder.

3.All the prices are FOBShenzhen, freight will be paid by buyers.



Refund & Replacement:

1.We provide 60 days quality warrantly, Samples have no refund.

2.If the items are defective, please let me know as soon as you receive the goods.

3.All the items must be returned in original condition if there is a replacement or refund.

4.The buyer is responsible for all the shipping cost incurred.


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Q:What is a jet fuse
And in the AC current zero off when the arc off the current. The insulating tube is usually mounted on an insulating bracket to form the fuse as a whole.
Q:What happens to the fuse's melting point?
Of course, there are fuses can not be measured by temperature, but should be able to bear the number of security measure.
Q:Why the fuse resistance is large
If the circuit is properly placed in the fuse, then the fuse will rise in the current to a certain height and heat, when the fuse itself cut off the current, so as to protect the safe operation of the circuit.
Q:What is the role of thermal fuse
When the motor and other load equipment beyond its rated temperature value to play an instantaneous power protection role
Q:How do I use a multimeter to detect if the fuse is broken
if the pile under the detection of no voltage, you can conclude that the fuse burned.
Q:Fuse according to the breaking current range can be divided into several
This fuse is mainly used to protect power transformers and general electrical equipment.
Q:Fuse inspection check how to do?
fuse fuse signal is normal.
Q:What is a semi-enclosed fuse
When the current is broken, the resulting sound and light are blocked by the porcelain case.
Q:The choice of fuse tube can be based on the following process
the ambient temperature on the impact of the carrying capacity of the fuse tube, see "ambient temperature".
Q:Fuse letter of the fuse
AR (DIN VDE / IEC) local range of semiconductor protection
We insist on the principle of "Service Supremacy, Quality Primacy" to provide high quality products and best service for the society. After several years' development, we have formed a certain scale in the production of exhaust fans. At present, our mainly products exhaust fans are used in graziery and gardening, cooling pad, automatic oil-burning heating machine, automatic coal-burning heating machine and electric blower fields.

1. Manufacturer Overview

Location Shenzhen, China (Mainland)
Year Established 2007
Annual Output Value US$5 Million - US$10 Million
Main Markets North America; South America; Eastern Europe; Southeast Asia; Africa; Oceania; Mid East; Eastern Asia; Western Europe; Central America; Northern Europe; Southern Europe; South Asia; Domestic Market
Company Certifications ISO 9001:2000

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3. Manufacturer Capability

a)Trade Capacity  
Nearest Port HongKong, Shenzhen
Export Percentage 41% - 50%
No.of Employees in Trade Department 21-50 People
Language Spoken:
b)Factory Information  
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No. of Production Lines
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