Founded in 1987, China Ningbo Wanji Electronic Technology Co., Ltd, as a key private-owned enterprise in Zhejiang Province, is located in Cixi Andong Industrial Zone and adjacent to Qiaotoubao of Hangzhou Bay Bridge, which is attached to the booming Yangtze River Delta Economic Circle.

We are an export-oriented enterprise with self-support import & export rights approved by Ministry of Foreign Trade & Economic Cooperation of PRC. As AA Grade Enterprise, we have registered capital of 118.8 million yuan, total capital of about 150 million yuan (until the end of 2005), a floor area of 56,000㎡ and total building area of 37,000㎡. With about 1000 employees, 18% of whom are engineering technicians with college degree or above, we also have over 190 engineering technical personnel, including 25 senior technicians, 27 middle-level technicians, 126 primary technicians and over 60 after-service personnel. In order to build learning enterprise, we have cooperated with relevant universities and college centers and opened junior college lessons and senior high school lessons. We have set up executive office, human resource department, financial department, internal sales department, international trade department, technical development department, quality control department, purchase department, production department and 6 production workshops. We have also founded Party Branch, Youth League Branch, Labor Union Committee and a group of employees who are good at management.

We specialize in ring iron core, ring type transformer, EI transformer, AC/DC power supply adapter, mobile phone chargers, switch power adapter, switching power supply, etc. Except iron core, all products are awarded as Ningbo High-Tech Products. In May 2006, “Jishisheng” was rated as Cixi Famous Brand. In September 2006, TDB ring type transformer was rated as Ningbo Famous Product. We are developing forward diversified high-tech digital direction and have developed IP/TV STB, DVB-T digital STB, DVB-C digital STB, WJ computer control panel of automatic amusement apparatus (mahjong), control panels of icebox, washing machine, electric fan, warm air blower, etc. Our products are widely applied to household appliance, communication, aeronautics & astronautics, medical treatment, broadcasting TV industries, etc. Our main products have already got the certificate of RoHs, UL/cUL, CCC, GS, CE, TUV, VDE, FCC, CSA, etc.

With abundant technical force & production management experience, we have introduced advanced manufacturing equipments and inspection equipments from U.S, Korea, etc. Under the strict control of ISO9001:2000 System, we have adopted advanced manufacturing technologies at home and abroad and combined our special production technology to guarantee the quality & performance of products and satisfy the demands of clients.

Devoting to the specification, popularization & diversification of product & adhering to standard management, we have not only produced products, but also created values for the clients. We will provide superior, punctual & satisfying services for clients by complete market network service system.

Let's cooperate sincerely and build the brilliant future!

Outstanding Features:
1. Universal Purpose
2. Reliable Safety Approvals
3. Low profile & Low Weight
4. Low No-load Losses
5. Low Mechanical Hum
6. Low Stray Magnetic Field
7. Low Operating Temprature
8. High Efficiency
9. Easy to mount
10. Competitive price
115/230 Primary &120/240 Primary Toroidal Transformer Series 25VA~5000VA

Primary	100V, 115V, 120V, 230V, 240V / 50 Hz
Secondary	Customized
Standard	UL506, UL1411, EN61558
Insulation Class	Class B, Class F, Class H
Mounting	One Metal plate, Two Rubber pads, One set of bolt & nut with washer, centre-potting
Weight & Dimensions	For your reference

130 Deg C Thermal Cutoff and Thermal Switch from 105 Deg C to 150 Deg C can be fitted when required.

All data are subject to modification without prior notice.

Outstanding Features:
Suitable for Tele-communication, Home appliance etc.
Input Voltage: CCC、CQC(220V/50 Hz)
Compliant: GB4943-2001; Overheat protective, Stable performance, Nice profile etc.

Size	Output(AC/DC)	Output(AC/DC)	Overall Size(mm)
EI-28	1.5VA	2.0VA	L61XW35XH35
EI-35	3.0VA	3.6VA	L56XW44XH39
EI-41	6.0VA	9VA	L63XW51XH43
EI-48	13.5VA	20VA	L72XW56XH47
EI-57	25VA	30VA	L90XW67XH58
EI-66	45VA	60VA	L130XW92XH69

20W Switching Power Supply

• Universal AC input / Full load
• Full output 3~48V safety approved
• Protections: short circuit / Over load / Over voltage / Over temp.
• Approvals : UL / CUL / TUV / CB / CE
• Fixed switching frequency and regulation
• Full enclosed plastic case
• Topology : Top switch circuit
• LED indicator for power on

AC input voltage range………90~264V / 0.8
AC inrush current (max.)……. Cold start, <60A peak at 230V AC
Over load protection………… Hiccup mode, auto-recovery
Over voltage protection………110~140% of +5V output
Withstand voltage…………..I/P - O/P: 3KV AC, I/P – FG: 1.5KV AC , 1 minute
Working temperature………… 0~+40℃ (refer to output load derating curve)
Safety standards………………UL1950, CSA22.2, TUV EN60950 pending
….EMC standards: EN55022-B, EN61000-3-2,3,
….. EN61000-4-2,3,4,5,6,8,11 EN50204
Standard output cable………. 150cm of AWM 2464
Standard output plug………… DIN 5P
Dimension (l﹡W﹡H)(mm)….108×67×36
Packing………………………... 54pcs/20kg

20W (IEC 320-C14/Class 1)

Model No.	Output	Tolerance	Ripple&Noise	Efficiency
SP20-03	3.3V,2.5A	±5%	50mv	65%
SP20-05	5V,3.3A	±5%	50mv	70%
SP20-07	7.5V,2.2A	±5%	80mv	75%
SP20-09	9V,2.2A	±5%	80mv	74%
SP20-12	12V,1.7A	±3%	120mv	76%
SP20-15	15V,1.3A	±3%	150mv	77%
SP20-18	18V,1.1A	±3%	180mv	78%
SP20-24	24V,0.8A	±5%	240mv	80%
SP20-48	48V,0.42A	±5%	480mv	83%

Introduction:
WJ-DBX series Refrigerator Control Circuit Board adopts Industrial CPU equipped with the functions of Intellectual operation, Offline memory, Keeping fresh Intellectually, Safe protection etc. It characterizes by LCD monitor, operation stableness, safety and strong anti-jamming. It has widely been applied to the refrigerators of different manufacturers. Superior after-sale technology services will meet your demands without any doubt.

Main Functions:
1. Intellectual Operation:
Based on the environmental temperature, the times of opening the door and the food volume, the Control Circuit Board will auto-adjust to be the most economic operation situation.
2. Offline Memory:
The refrigerator will operate according to the previous way when it powers on.
3. Keeping fresh intellectually:
It’s controlled by CPU to cryogen, deepfreeze and keep wet to realize keeping fresh. Meantime, storage of the vegetables and dry rot of the fruits will be solved.
4. Machine Protection:
Time-lapse protection to the compressor will be realized when refrigerator resumes to work after urgent powering off.
5. Safety Protection:
The control circuit board will protect the compressor free of the high voltage or high circuit. The refrigerator will work normally.
6. LCD Monitor supports to touch the keys with a long distance of below 5mm.
7. The control circuit board materials are RoHS-compliant.
8. A series of control circuit boards for single refrigerator can be supplied and customized.

Main Functions:
1. Two gears heating suitable for different requirements.
2. Support time-lapse heating from 0.5 hour to 7.5 hours
3. Support Centigrade and Fahrenheit display.
4. Support Fan rotation for large-scope heating.
5. Support key and telecontrol operation with convenience.
6. The Fan rotation is delayed to stop when powering off.
7. The control circuit board materials are RoHS-compliant.
8. A series of control circuit boards for single warmer machine can be supplied and customized.

WJ2000-THA for Household

Please view other products: electrical products, transformer, power transformer, advance transformer, electric transformer, electrical transformer, current transformer, toroidal transformer, iron core, toroid iron core, iron powder core, iron core transformer, power adapter, ac power adapter, laptop power adapter, power cord adapter, dc power adapter, 12v power adapter, travel power adapter, europe power adapter, european power adapter, international power adapter, universal power adapter, receiver, gps receiver, hdtv receiver, home theater receiver, pioneer receiver, audio receiver, direct tv receiver, digital media receiver, car receiver, digital tv receiver, fta receiver, charger, phone chargers, dvb t, dvb t receiver, dvb modulator t, iptv stb, stb, iptv, wmv9, h.264, set-top box, mpeg2, mpeg4, rtsp, video on demand, vod, mpeg, set top box