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:The difference between the fuse and the air switch
The air switch disconnects all of the power supply from the faulty circuit
Q:What is the installation of the fuse.
The current and duration of the fuse pipe must be cut off (this condition is determined by the designer's protection requirements for the particular circuit).
Q:What is a closed fuse:
for the voltage level 500V below the current level of 1KA the following circuit.
Q:Why copper can not replace the fuse
When the circuit fails or abnormal, accompanied by rising current, and the rising current may damage some important devices in the circuit or expensive devices, it is possible to burn the circuit or even cause a fire.If the circuit correctly placed the fuse ,
Q:How to classify fuses
According to the protection of the form, can be divided into: over-current protection and overheating protection.
Q:Why does the rated current of the fuse be based on the effective value as a standard?
And the effective value of the current from the integral point of view, is its effective heat effect. So not only the rated current of the fuse is expressed in terms of the rms value
Q:Fuse blown current and time
If the greater the current the greater the time, and vice versa million Swiss and electronic recovery fuse manufacturers
Q:The use and function of the fuse
Fuse: is a high resistivity, low melting point lead-antimony alloy.
Q:When choosing a fuse, you must consider several elements
Time / current characteristics that fuse characteristics, points are fast break and slow off two models.
Q:What is the factor of the fuse tube?
Structural features and installation form
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
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b)Factory Information  
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