GuangDong Youfeng Microelectronics Co., Ltd. (YFW), founded in June 2013, with its headquarters in Dongguan, China, and factory locate in Changzhou, Jiangsu, is an enterprise specializing in the research and development, manufacturing and sales of semiconductor products.
YFW on full range of diodes and bridge rectifiers: General Purpose Rectifier, Fast Recovery, High Efficiency, Ultra-Fast, Schottky, Low Voltage drop Schottky, Bridge Rectifier, TVS Transient Voltage Suppressor, ESD Electrostatic Protection Element, Switching Diode, Zener Diodes, Transistor, Thyristor and Mosfet etc.
Major Packaging includes SOD-123, SOD-323, SOD-523, SOD-723, SMAF, SMBF, SMA, SMB, SMC, TO-252, TO-263, SOT-23, SOT-323, SOT-523, SOT-363, SOT-553, SOP-8, SOT-223-3I, SOT-89, TO-227, TO-220AB, ITO-220AB, TO-220AC, ITO-220AC, TO-247, DO-41, DO-15, DO-27, R-6, UMB, UMSB, TTF, MBS, MBF, ABS, ABF, DBS, KBP, D3K, GBP, KBU, GBJ, GBU, KBL etc.
YFW has established its own brands "YFW" for years, adhere to the management principles of "customer oriented, quality adherence", follow the world tendency, we are ready to cooperate with enterprises from all over the world in order to realize a win-win situation.
Online prices for reference, the specific actual price shall prevail.
| Product modelMMSZ5254B |
Package:SOD-123 |
| Brand:YFW |
Type:Zener Diodes |
| ★PD:500mW |
★Marking code:K4 |
| ★VR:21V |
★VF:Not |
| ★VZ:27V |
★IR:0.5nA |
| ★Packing quantity:3K/reel |
|
| |
|
| Product model:MMSZ5255B |
Package:SOD-123 |
| Brand:YFW |
Type:Zener Diodes |
| ★PD:500mW |
★Marking code:K5 |
| ★VR:21V |
★VF:Not |
| ★VZ:28V |
★IR:0.1nA |
| ★Packing quantity:3K/reel |
|
| |
|
| Product model:MMSZ5256B |
Package:SOD-123 |
| Brand:YFW |
Type:Zener Diodes |
| ★PD:500mW |
★Marking code:M1 |
| ★VR:23V |
★VF:Not |
| ★VZ:30V |
★IR:0.1nA |
| ★Packing quantity:3K/reel |
|
| TYPE |
Marking |
Zener Voltage Range |
Dynamic Impedance |
Reverse Current |
| VZT (at IZT) |
IZT |
ZZT (at IZT) |
IZK |
ZZK (at IZT) |
IR |
at VR |
| Min (V) |
Nom(V) |
Max(V) |
(mA) |
Max (Ω) |
(mA) |
Max (Ω) |
Max(nA) |
(V) |
| MMSZ5221B |
C1 |
2.28 |
2.4 |
2.52 |
20 |
30 |
0.25 |
1200 |
100 |
1 |
| MMSZ5222B |
C2 |
2.38 |
2.5 |
2.63 |
20 |
30 |
0.25 |
1250 |
100 |
1 |
| MMSZ5223B |
C3 |
2.57 |
2.7 |
2.84 |
20 |
30 |
0.25 |
1300 |
75 |
1 |
| MMSZ5225B |
C5 |
2.85 |
3 |
3.15 |
20 |
30 |
0.25 |
1600 |
50 |
1 |
| MMSZ5226B |
D1 |
3.14 |
3.3 |
3.47 |
20 |
28 |
0.25 |
1600 |
25 |
1 |
| MMSZ5227B |
D2 |
3.42 |
3.6 |
3.78 |
20 |
24 |
0.25 |
1700 |
15 |
1 |
| MMSZ5228B |
D3 |
3.71 |
3.9 |
4.1 |
20 |
23 |
0.25 |
1900 |
10 |
1 |
| MMSZ5229B |
D4 |
4.09 |
4.3 |
4.52 |
20 |
22 |
0.25 |
2000 |
5 |
1 |
| MMSZ5230B |
D5 |
4.47 |
4.7 |
4.94 |
20 |
19 |
0.25 |
1900 |
5 |
2 |
| MMSZ5231B |
E1 |
4.85 |
5.1 |
5.36 |
20 |
17 |
0.25 |
1600 |
5 |
2 |
| MMSZ5232B |
E2 |
5.32 |
5.6 |
5.88 |
20 |
11 |
0.25 |
1600 |
5 |
3 |
| MMSZ5234B |
E4 |
5.89 |
6.2 |
6.51 |
20 |
7 |
0.25 |
1000 |
5 |
4 |
| MMSZ5235B |
E5 |
6.46 |
6.8 |
7.14 |
20 |
5 |
0.25 |
750 |
3 |
5 |
| MMSZ5236B |
F1 |
7.13 |
7.5 |
7.88 |
20 |
6 |
0.25 |
500 |
3 |
6 |
| MMSZ5237B |
F2 |
7.79 |
8.2 |
8.61 |
20 |
8 |
0.25 |
500 |
3 |
6 |
| MMSZ5239B |
F4 |
8.65 |
9.1 |
9.56 |
20 |
10 |
0.25 |
600 |
3 |
6.5 |
| MMSZ5240B |
F5 |
9.5 |
10 |
10.5 |
20 |
17 |
0.25 |
600 |
3 |
8 |
| MMSZ5241B |
H1 |
10.45 |
11 |
11.55 |
20 |
22 |
0.25 |
600 |
3 |
8.4 |
| MMSZ5242B |
H2 |
11.4 |
12 |
12.6 |
20 |
30 |
0.25 |
600 |
2 |
9.1 |
| MMSZ5243B |
H3 |
12.35 |
13 |
13.65 |
9.5 |
13 |
0.25 |
600 |
1 |
9.9 |
| MMSZ5245B |
H5 |
14.25 |
15 |
15.75 |
8.5 |
16 |
0.25 |
600 |
0.5 |
11 |
| MMSZ5246B |
J1 |
15.2 |
16 |
16.8 |
7.8 |
17 |
0.25 |
600 |
0.1 |
12 |
| MMSZ5248B |
J3 |
17.1 |
18 |
18.9 |
7 |
21 |
0.25 |
600 |
0.1 |
14 |
| MMSZ5250B |
J5 |
19 |
20 |
21 |
6.2 |
25 |
0.25 |
600 |
0.1 |
15 |
| MMSZ5251B |
K1 |
20.9 |
22 |
23.1 |
5.6 |
29 |
0.25 |
600 |
0.1 |
17 |
| MMSZ5252B |
K2 |
22.8 |
24 |
25.2 |
5.2 |
33 |
0.25 |
600 |
0.1 |
18 |
| MMSZ5254B |
K4 |
25.65 |
27 |
28.35 |
5 |
41 |
0.25 |
600 |
0.1 |
21 |
| MMSZ5255B |
K5 |
26.6 |
28 |
29.4 |
4.5 |
44 |
0.25 |
600 |
0.1 |
21 |
| MMSZ5256B |
M1 |
28.5 |
30 |
31.5 |
4.2 |
49 |
0.25 |
600 |
0.1 |
23 |
| MMSZ5257B |
M2 |
31.35 |
33 |
34.65 |
3.8 |
58 |
0.25 |
700 |
0.1 |
25 |
| MMSZ5258B |
M3 |
34.2 |
36 |
37.8 |
3.4 |
70 |
0.25 |
700 |
0.1 |
27 |
| MMSZ5259B |
M4 |
37.05 |
39 |
40.95 |
3.2 |
80 |
0.25 |
800 |
0.1 |
30 |
FAQ
1. What's major products does YFW sell?
YFW sells full range of diodes and bridge rectifiers. Our advantages are most complete line of low voltage drop schottky diode, 3000~5000W SMDJ TVS, Mosfet,big Bridges, Transistor. And with most parts in warehouse ready for shipment.
2.How long is a quote valid for?
All prices quoted are valid for 30 days from the date of quotation.
3.How is payment terms?
We prefer pay in advance via TT,western union and paypal(for small amount only).
4. How long is the production lead time?
* Most items we have stock of complete items;
* Most items we have stock of chips, lead time 2~3 weeks;
* Partial items have not stock of chips, lead time 4~5 weeks.
* once order confirmed, we can check the exact lead time then
5. What is the freight charge when we buy diodes from YFW.
As freight will vaires according to the size and weight of the parts, different location of customers, YFW will quote ex-work, freight to collect and paid by customer courier account of DHL,UPS, FEDEX. Or YFW will check the shipping cost and add it to the total amount customer should pay.
6. May I have some samples for testing?
We offer free samples for our customers and they only need to pay the freight for samples.
7. How to assure worldwide customers receive YFW components in good quality and condition?
1st, with advanced manufacturing technology ensure product reliability;
2nd Strict quality control system, ISO registered;
3rd, YFW will provide data sheet for all components, and we prefer customer trial test our parts, volumn orders to be placed after trial test pass;
4th, Factory would check product 100% before delivery, and international safety packaging will be applied to ensure parts arrive at customer in good condition.
Audited Supplier 
){kind=link}
){kind=link}