Zenamic Z7D

Zenamic is Semitec’s registered trademark for metal oxide varistors which are transient voltage surge absorbers. Zenamic features large surge current and transient overvoltage handling capabilities. It is produced by sintering a ZnO based metal oxide mix at temperatures ranging from 1200 to 1400℃.

SEMITEC’S Zenamic products are fully compliant with RoHS DIRECTIVE2011/65/EU.

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Applications

・Semiconductor device protection: Diodes, transistors, thyristors, IC etc.
・Home electronics protection: TVs, air conditioners, refrigerators, microwave ovens, etc.
・Office automation equipment protection: PPC copiers, fax machines, PCs, etc.
・Industrial equipment protection: Robots, water heaters, machining equipment, etc.
・Inrush surge protection: Electromagnetic clutches/brakes, relay control devices, circuit breakers etc.
・Others: Automotive electronics circuits, vending machines, communication/broadcasting equipment, etc.

Rating

Z7D180 to 680

Part No.	Varistor voltage V1mA	Maximum allowable voltage		Clamping voltage (max.) V2.5A	Rated power	Maximum energy (2ms)	Maximum peak current (8/20μs)	Capacitance (TYP) (1kHz)
	Varistor voltage V1mA	AC	DC	Clamping voltage (max.) V2.5A	Rated power	Maximum energy (2ms)	Maximum peak current (8/20μs)	Capacitance (TYP) (1kHz)
	V	Vrms	V	V	W	J	A	pF
Z7D180	18(16～20)	11	14	36	0.02	0.9	250	3,800
Z7D220	22(20～24)	14	18	43		1.1		3,600
Z7D270	27(24～30)	17	22	53		1.3		3,400
Z7D330	33(30～36)	20	26	65		1.6		2,900
Z7D390	39(35～43)	25	31	77		1.9		1,600
Z7D470	47(42～52)	30	38	93		2.3		1,550
Z7D560	56(50～62)	35	45	110		2.7		1,500
Z7D680	68(61～75)	40	56	135		3.3		1,200

Z7D820 to 511 (UL1449 (No. E331328）certified)

Part No.	Varistor voltage V1mA	Maximum allowable voltage		Clamping voltage (max.) V10A	Rated power	Maximum energy (2ms)	Maximum peak current (8/20μs)	Capacitance (TYP) (1kHz)
	Varistor voltage V1mA	AC	DC	Clamping voltage (max.) V10A	Rated power	Maximum energy (2ms)	Maximum peak current (8/20μs)	Capacitance (TYP) (1kHz)
	V	Vrms	V	V	W	J	A	pF
Z7D820	82(74～ 90)	50	65	135	0.25	5.0	1,250	810
Z7D101	100(90～110)	60	85	165		6.0		700
Z7D121	120(108～132)	75	100	200		7.0		590
Z7D151	150(135～165)	95	125	250		9.0		500
Z7D201	200(185～225)	130	170	340		12.5		200
Z7D221	220(198～242)	140	180	360		13.5		190
Z7D241	240(216～264)	150	200	395		15.0		170
Z7D271	270(247～303)	175	225	455		17.0		150
Z7D331	330(297～363)	210	270	545		20.0		130
Z7D361	360(324～396)	230	300	595		23.0		130
Z7D391	390(351～429)	250	320	650		25.0		130
Z7D431	430(387～473)	275	350	710		27.5		120
Z7D471	470(423～517)	300	385	775		30.0		※ 100
Z7D511	510(459～561)	320	410	845		32.0		※ 90

※ Measured at 1 MHz

Dimensions

Part No.	Dmax.	Tmax.	W1(±1)	Hmax.	W2(±1)	φd
Z7D180	8.5	4.5	5.0	11.5	1.3	0.6
Z7D220		4.6			1.4
Z7D270		4.7			1.5
Z7D330		4.9			1.7
Z7D390		4.8			1.6
Z7D470		4.9			1.7
Z7D560		5.0			1.8
Z7D680		5.2			2.0
Z7D820		4.1			1.4
Z7D101		4.3			1.6
Z7D121		4.5			1.8
Z7D151		4.8			2.1
Z7D201		4.4			1.7
Z7D221		4.5			1.8
Z7D241		4.6			1.9
Z7D271		4.8			2.1
Z7D331		5.1			2.4
Z7D361		5.3			2.5
Z7D391		5.4			2.7
Z7D431		5.6			2.9
Z7D471		5.8			3.1
Z7D511		6.0			3.3

Unit: mm

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