Selection Guide for - Beijing TransFar Electronics Group Co., Ltd

Model Choosing Reference

for S, SL, T, TL, M &H Series PCB Mount Power Transformers

To meet the needs of customers in different application scenarios, our company has developed and produced Fully-encapsulated PCB Mount Power Transformers at different levels, including:

1. "Argent Angel" S Series and SL Series (flat type) Fully-encapsulated PCB Mounting Power Transformers

The biggest features of the products of "Argent Angel" S Series and SL Series are good electromagnetic characteristic indicators, high input overvoltage capability (up to +25% to reach 275V), wide environmental adaptability range, and good safety performance

( certification, certification, certification, inter-winding withstands 50Hz 3750V effective value/1 minute), an internal temperature protector is installed. Even in the case of a short circuit in the transformer load, the power supply can be effectively cut off to prevent the equipment from burning out. It is the best supporting choice for customers producing industrial-grade equipment and military-grade products. Because its case is made entirely of silver-gray flame-retardant PBT and PBO engineering plastics, its performance indicators are as excellent as an angel, so it is called "Argent Angel".

2. "Blue Fairy" T Series and TL Series (flat type) Fully-encapsulated PCB Mounting Power Transformers

The biggest features of the products of "Blue Fairy" T series and TL series are their relatively small size, high power density, and safety performance not lower than national standards ( certification, certification, inter-winding withstand 50Hz 2000V effective value/1 minute) and economical prices. It is the best choice for customers producing various civilian products. Because its case is made entirely of sky blue flame-retardant PBT engineering plastics, its small and powerful features are like a little fairy, so it is called "Blue Fairy".

3. "Green Cube" M Series Toriodal Fully-encapsulated PCB Mounting Power Transformers

The "Green Cube" M Series is a Toriodal encapsulated transformer. Its biggest features are high efficiency, low leakage, good output characteristics, strong EMC capability, high safety performance, and inter-winding withstand 50Hz 4000V/1 minute. An internal temperature protector is installed. Even in the event of a short circuit in the transformer load, the power supply can be effectively cut off to prevent the equipment from burning out. Small in size, light in weight, it is the best supporting choice for customers producing industrial-grade equipment and military-grade products. Because its case is made entirely of green flame-retardant PPO engineering plastics that symbolize environmental protection, its performance indicators especially meet the requirements of "green, environmental protection, energy saving and high efficiency" put forward by the national power industry, and are as superior as if magic has been applied, so it is called "Green Cube".

4. H Series PCB Mounting Power Transformer

Naming Rules

of Series of S, SL, T, TL, M & H PCB Mounting Power Transformers

1．Standard Series：

SN	01	01B	02	03	04	05	05B	06	06B
Output Voltage	6V	7.5V	9V	12V	15V	18V	21V	24V	27V
SN	07	07B	08	09	10	11	11B	12	12B
Output Voltage	2×6V	2×7.5V	2×9V	2×12V	2×15V	2×18V	2×21V	2×24V	2×27V

2．Non-standard series：

3. The products in series S and T with letter “L” following Rated VA code are lower in height than those without “L”.

Tables of Model Choosing Reference

0.25-2VA

Power	Model	Over Input Voltage	Voltage Regulation Ratio	220V/50Hz Input		Dimension (mm³) L×W×H	Weight (g)	Page
Power	Model	Over Input Voltage	Voltage Regulation Ratio	Idle Current	Idle Loss	Dimension (mm³) L×W×H	Weight (g)	Page
0.25VA	S0.25	25%	≤26%	≤2.5mA	≤0.10W	26×22.5×23	40	13
0.35VA	S0.35L	15%	≤45%	≤3.5mA	≤0.20W	32.6×27.6×16	40	14
0. 5VA	S0.5	15%	≤30%	≤4.5mA	≤0.3W	26×22.4×26	50	15
	T0.5	10%	≤40%	≤6mA	≤0.25W	26×22.5×23	40	45
	T0.5A	10%	≤40%	≤10mA	≤0.5W	23×22×19	36	46
	T0.5S	10%	≤35%	≤16mA	≤1.6W	23×22×19	33	47
	H0.5	10%	≤30%	≤6mA	≤0.3W	26×22.4×26	50
0.6VA	S0.6	25%	≤38%	≤3mA	≤0.12W	30.5×27.5×20.5	60	16
	T0.6	10%	≤39%	≤3.5mA	≤0.16W	30.5×27.5×20.5	60	48
	T0.6A	10%	≤40%	≤8mA	≤0.5W	22×23×22	45	49
0.8VA	S0.8	25%	≤20%	≤4mA	≤0.20W	30.5×27.5×25	75	17
1VA	S1	25%	≤20%	≤6mA	≤0.15W	30.5×27.5×25	75	18
	S1L	25%	≤23%	≤8mA	≤0.17W	32.6×27.6×22.2	75	19
	T1	10%	≤20%	≤7mA	≤0.29W	30.5×27.5×25	75	50
1.2VA	S1.2	25%	≤16%	≤7mA	≤0.25W	30.5×27.5×31.25	100	20
1.2VA	T1.2L	10%	≤23%	≤9mA	≤0.36W	37.5×32×24.5	110
1.3VA	S1.3L	25%	≤17%	≤7.5mA	≤0.26W	43×35×22	110	21
1.3VA	T1.3L	10%	≤18%	≤9mA	≤0.50W	43×35×22	110	51
1.5VA	S1.5	25%	≤17.5%	≤7.5mA	≤0.20W	30.5×27.5×31.25	100	22
	S1.5L	25%	≤12.5%	≤8mA	≤0.35W	43×35×24.5	125	23
	T1.5	10%	≤23%	≤8.5mA	≤0.35W	30.5×27.5×25	75	52
	H1.5	10%	≤25%	≤9mA	≤0.3W	30.8×27.9×28	85
1.6VA	M1.6/MS1.6	10%	≤30%	≤1.0mA	≤0.08W	39.6×39.6×18.5	80	88
2VA	S2	25%	≤15%	≤7.5mA	≤0.20W	37.5×32×31	125	24
	S2L	25%	≤15%	≤8.5mA	≤0.35W	44×36×26.5	135	25
	S2S	25%	≤21%	≤12mA	≤0.25W	32.6×27.6×31.25	135	26
	T2	10%	≤21%	≤10mA	≤0.40W	30.5×27.5×31.25	100	53
	T2A	10%	≤30%	≤12mA	≤0.40W	30.5×28×32	103	54

3-10VA

Power	Model	Over Input Voltage	Voltage Regulation Ratio	220V/50Hz Input		Dimension (mm³) L×W×H	Weight (g)	Page
Power	Model	Over Input Voltage	Voltage Regulation Ratio	Idle Current	Idle Loss	Dimension (mm³) L×W×H	Weight (g)	Page
3VA	S3	25%	≤15%	≤8mA	≤0.25W	37.5×32×35	155	27
	SL3	20%	≤25%	≤12mA	≤0.25W	53×43×21.5	165	37
	T3	10%	≤22%	≤17mA	≤0.40W	30.5×27.5×31.25	100	55
	T3L	10%	≤22%	≤15.5mA	≤0.50W	43×35×24.5	125	56
	T3LD	10%	≤22%	≤15.5mA	≤0.50W	43×35×25	125	57
	T3H	10%	≤25%	≤12mA	≤0.45W	33×28×34.2	140	58
	T3S	10%	≤38%	≤15mA	≤0.35W	30.5×27.5×31.25	125
	H3	10%	≤38%	≤15mA	≤0.35W	30.5×27.5×31.25	105
3.2VA	M3.2/MS3.2	10%	≤28%	≤1.5mA	≤0.1W	44.7×44.7×19.5	120	89
3.5VA	T3.5	10%	≤21%	≤17mA	≤0.50W	37.5×32×31	125	59
	T3.5L	10%	≤20%	≤18mA	≤0.50W	44×36×26.5	135	60
	T3.5LD	10%	≤20%	≤18mA	≤0.50W	44×36×26.5	135	61
4VA	S4	25%	≤13%	≤16mA	≤0.50W	45×37×33	195	28
	T4	10%	≤18%	≤18mA	≤0.60W	37.5×32×35	155	62
	T4L	10%	≤18%	≤18mA	≤0.50W	44×36×26.5	135	63
4.5VA	TL4.5	10%	≤28%	≤26mA	≤0.45W	54.5×44×18	160	78
5VA	S5	25%	≤13%	≤18mA	≤0.35W	45×37×33	195	29
	T5	10%	≤15%	≤20mA	≤0.40W	37.5×32×35	155	64
	T5L	10%	≤23%	≤18mA	≤0.40W	44×33×29.5	170
	T5H	10%	≤25%	≤18mA	≤0.40W	37.5×32.2×35	170
	M5/MS5	10%	≤25%	≤2.0mA	≤0.15W	49.7×49.7×19.5	150	90
	H5	10%	≤25%	≤18mA	≤0.4W	37.5×32.2×35	170
6VA	SL6	20%	≤24%	≤15mA	≤0.32W	53×43×25.5	220	37
	T6	10%	≤16%	≤24mA	≤0.80W	45×37×33	195	65
	TL6	10%	28%	≤ 20mA	≤ 0.5 W	58.5×43.5×18.2	170	79
7VA	M7/MS7	10%	≤20%	≤2.5mA	≤0.2W	49.7×49.7×23.1	180	91
8VA	S8	25%	≤20%	≤20mA	≤0.80W	51×43×33.8	275	30
	T8	10%	≤16%	≤28mA	≤0.60W	45×37×33	195	66
	T8H	10%	≤16%	≤25mA	≤1.00W	45×37×40	195	67
	H8	10%	≤25%	≤28mA	≤0.6W	44×36×35	210
9VA	SL9	20%	≤23%	≤20mA	≤0.43W	53×43×30	280	37
	T9	10%	≤21%	≤18mA	≤0.90W	51×43×33.8	275	68
	TL9	10%	≤20%	≤15mA	≤0.5W	58.5×43.5×22.3	200	80
10VA	S10	25%	≤15%	≤20mA	≤0.65W	51×43×36	300	31
	S10D	25%	≤15%	≤20mA	≤0.65W	69×43×38.5	300	32
	SL10	15%	≤26%	≤30mA	≤0.75W	68×55×24	290	38
	T10	10%	≤13%	≤28mA	≤1.00W	51×43×36	300	69
	T10D	10%	≤13%	≤28mA	≤1.00W	69×43×38.5	300	70
	M10/MS10	10%	≤18％	≤3.5mA	≤0.3W	55×55×26	250	92

12-160VA

Power	Model	Over Input Voltage	Voltage Regulation Ratio	220V/50Hz Input			Dimension (mm³) L×W×H		Weight (g)	Page
Power	Model	Over Input Voltage	Voltage Regulation Ratio	Idle Current	Idle Loss		Dimension (mm³) L×W×H		Weight (g)	Page
12VA	S12	25%	≤15%	≤20mA		≤0.50W		51×43×36	300	33
	T12	10%	≤15%	≤28mA		≤1.00W		51×43×36	300	71
	TL12	10%	≤20%	≤18mA		≤0.6W		66×49×25.3	330	81
15VA	S15	25%	≤11%	≤28mA		≤0.70W		58.5×49×40	415	34
	T15	10%	≤15%	≤35mA		≤0.70W		51×43×36	300	72
	T15H	10%	≤17%	≤25mA		≤0.9W		51×43×43.5	420
	M15/ MS15	10%	≤18%	≤4mA		≤0.4W		60×60×26.3	300	93
	H15	10%	≤17%	≤25mA		≤0.9W		51×43×43.5	420
18VA	S18	25%	≤10%	≤28mA		≤0.60W		58.5×49×40	415	35
18VA	T18	10%	≤12%	≤40mA		≤1.20W		58.5×49×40	415	73
20VA	SL20	15%	≤18%	≤50mA		≤0.85W		68×55×31	420	38
	T20	10%	≤9%	≤45mA		≤0.90W		58.5×49×40	415	74
	T20H	10%	≤15%	≤40mA		≤1.7W		58.5×48×44.5	520	75
	H20	10%	≤20%	≤40mA		≤1.7W		58.5×48×44.5	520
25VA	M25/ MS25	10%	≤14%	≤6mA		≤0.6W		60×60×37.5	430	94
30VA	SL30	15%	≤13%	≤70mA		≤1.25W		68×55×37	540	38
35VA	M35/ MS35	10%	≤12%	≤8mA		≤0.8W		72×72×37.5	500	95
40VA	SL40	15%	≤12%	≤65mA		≤1.80W		83.5×70.5×39	760	39
40VA	T40D	10%	≤10%	≤45mA		≤2W		81×53×53	750	76
50VA	M50/ MS50	10%	≤10%	≤10mA		≤1.0W		82.4×82.4×37.5	650	96
60VA	SL60	15%	≤11%	≤47mA		≤0.85W		83.5×70.5×48	1075	39
90VA	MS90	15%	≤7%	≤5.5mA		≤1.0W		106×88.5×55	1400	97
110VA	MS110	15%	≤6%	≤7.5mA		≤1.5W		116×98.5×54.5	1840	98
160VA	MS160	15%	≤5%	≤9.5mA		≤2.0W		126×108.5×57.5	2300	100