SZ1SMA Series - Automotive and High Reliability TVS from TVS Diodes

SZ1SMA Series - 400W in SMA Package

The SZ1SMA series is designed to protect voltage sensitive components from high voltage, high energy transients. They have excellent clamping capability, high surge capability, low zener impedance and fast response time. The SZ1SMA series is supplied in the Littelfuse exclusive, cost-effective, highly reliable package and is ideally suited for use in communication systems, automotive, numerical controls, process controls, medical equipment, business machines, power supplies and many other industrial and consumer applications.

Features:

Zener Transient Overvoltage Suppressors
Peak Power − 400 W @ 1ms
ESD Rating of Class 3 (>16 kV) per Human Body Model
Response Time is Typically < 1 ns
Flat Handling Surface for Accurate Placement
Package Design for Top Slide or Bottom Circuit Board Mounting
Low Profile Package
Pb-free means 2nd level interconnect is Pb-free and the terminal finish material is tin(Sn) (IPC/JEDEC J-STD-609A.01)
SZ Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q101 Qualified and PPAP Capable

Access specifications, certifications, check availability and order parts below

Catalog #	V_R (V_so)	Watts (W)	I_PP 10x1000μs (A)	MIN V_BR@I_T (V)	MAX V_BR@I_T (V)	V_c (V)	I_T (mA)	Ir@Vso (μA)	Max Temp (deg C)	Stock	Samples

SZ1SMA100AT3G	100	400	2.5	111	123	162	1	2.5	150	Check	Order
SZ1SMA10AT3G	10	400	23.5	11.10	12.3	17	1	2.5	150	Check	Order
SZ1SMA10CAT3G	10	400	23.5	11.10	12.27	17.0	1	2.5	150	Check	Order
SZ1SMA110AT3G	110	400	2.3	122	135	177	1	2.5	150	Check	Order
SZ1SMA11AT3G	11	400	22	12.20	13.5	18.2	1	2.5	150	Check	Order
SZ1SMA120AT3G	120	400	2.1	133	147	193	1	2.5	150	Check	Order
SZ1SMA12AT3G	12	400	20.1	13.30	14.7	19.9	1	2.5	150	Check	Order
SZ1SMA12CAT3G	12	400	20.1	13.30	14.7	19.9	1	2.5	150	Check	Order
SZ1SMA130AT3G	130	400	1.9	144	159	209	1	2.5	150	Check	Order
SZ1SMA13AT3G	13	400	18.6	14.40	15.9	21.5	1	2.5	150	Check	Order
SZ1SMA13CAT3G	13	400	18.6	14.40	15.92	21.5	1	2.5	150	Check	Order
SZ1SMA14AT3G	14	400	17.2	15.60	17.2	23.2	1	2.5	150	Check	Order
SZ1SMA150AT3G	150	400	1.6	167	185	243	1	2.5	150	Check	Order
SZ1SMA15AT3G	15	400	16.4	16.70	18.5	24.4	1	2.5	150	Check	Order
SZ1SMA15CAT3G	15	400	16.4	16.70	18.46	24.4	1	2.5	150	Check	Order
SZ1SMA160AT3G	160	400	1.5	178	197	259	1	2.5	150	Check	Order
SZ1SMA16AT3G	16	400	15.4	17.80	19.7	26	1	2.5	150	Check	Order
SZ1SMA16CAT3G	16	400	15.4	17.80	19.67	26.0	1	2.5	150	Check	Order
SZ1SMA170AT3G	170	400	1.5	189	209	275	1	2.5	150	Check	Order
SZ1SMA17AT3G	17	400	14.5	18.90	20.9	27.6	1	2.5	150	Check	Order
SZ1SMA18AT3G	18	400	13.7	20.00	22.1	29.2	1	2.5	150	Check	Order
SZ1SMA18CAT3G	18	400	13.7	20.00	22.11	29.2	1	2.5	150	Check	Order
SZ1SMA20AT3G	20	400	12.3	22.20	24.5	32.4	1	2.5	150	Check	Order
SZ1SMA20CAT3G	20	400	12.3	22.20	24.54	32.4	1	2.5	150	Check	Order
SZ1SMA22AT3G	22	400	11.3	24.40	26.9	35.5	1	2.5	150	Check	Order
SZ1SMA22CAT3G	22	400	11.3	24.4	26.9	35.5	1	2.5	150	Check	Order
SZ1SMA24AT3G	24	400	10.3	26.70	29.5	38.9	1	2.5	150	Check	Order
SZ1SMA24CAT3G	24	400	10.3	26.70	29.51	38.9	1	2.5	150	Check	Order
SZ1SMA26AT3G	26	400	9.5	28.90	31.9	42.1	1	2.5	150	Check	Order
SZ1SMA26CAT3G	26	400	9.5	28.90	31.94	42.1	1	2.5	150	Check	Order
SZ1SMA28AT3G	28	400	8.8	31.10	34.4	45.4	1	2.5	150	Check	Order
SZ1SMA28CAT3G	28	400	8.8	31.10	34.37	45.4	1	2.5	150	Check	Order
SZ1SMA30AT3G	30	400	8.3	33.30	36.8	48.4	1	1	150	Check	Order
SZ1SMA30CAT3G	30	400	8.3	33.30	36.81	48.4	1	2.5	150	Check	Order
SZ1SMA33AT3G	33	400	7.5	36.70	40.6	53.3	1	2.5	150	Check	Order
SZ1SMA33CAT3G	33	400	7.5	36.70	40.56	53.3	1	2.5	150	Check	Order
SZ1SMA36AT3G	36	400	6.9	40.00	44.2	58.1	1	2.5	150	Check	Order
SZ1SMA36CAT3G	36	400	6.9	40.00	44.21	58.1	1	2.5	150	Check	Order
SZ1SMA40AT3G	40	400	6.2	44.40	49.1	64.5	1	2.5	150	Check	Order
SZ1SMA40CAT3G	40	400	6.2	44.40	49.07	64.5	1	2.5	150	Check	Order
SZ1SMA43AT3G	43	400	5.8	47.80	52.8	69.4	1	2.5	150	Check	Order
SZ1SMA43CAT3G	43	400	5.8	47.93	52.7	69	1	2.5	150	Check	Order
SZ1SMA45AT3G	45	400	5.5	50.00	55.3	72.2	1	2.5	150	Check	Order
SZ1SMA45CAT3G	45	400	5.6	50.02	55.43	71.5	1	2.5	150	Check	Order
SZ1SMA48AT3G	48	400	5.2	53.30	58.9	77.4	1	2.5	150	Check	Order
SZ1SMA48CAT3G	48	400	5.2	53.30	58.91	77.4	1	2.5	150	Check	Order
SZ1SMA5.0AT3G	5.0	400	43.5	6.40	7	9.2	10	400	150	Check	Order
SZ1SMA51AT3G	51	400	4.9	56.7	62.7	82.4	1	2.5	150	Check	Order
SZ1SMA54AT3G	54	400	4.6	60.00	66.3	87.1	1	2.5	150	Check	Order
SZ1SMA58AT3G	58	400	4.3	64.40	71.5	93.6	1	2.5	150	Check	Order
SZ1SMA58CAT3G	58	400	4.3	64.40	71.18	93.6	1	2.5	150	Check	Order
SZ1SMA6.0AT3G	6.0	400	38.8	6.67	7.37	10.3	10	400	150	Check	Order
SZ1SMA6.5AT3G	6.5	400	35.7	7.22	7.98	11.2	10	250	150	Check	Order
SZ1SMA60AT3G	60	400	4.1	66.7	73.72	96.8	1	2.5	150	Check	Order
SZ1SMA60CAT3G	60	400	4.1	66.70	73.72	96.8	1	2.5	150	Check	Order
SZ1SMA70AT3G	70	400	3.5	77.80	86	113	1	2.5	150	Check	Order
SZ1SMA70CAT3G	70	400	3.5	77.80	85.99	113.0	1	2.5	150	Check	Order
SZ1SMA75AT3G	75	400	3.3	83.3	92.1	121	1	2.5	150	Check	Order
SZ1SMA78AT3G	78	400	3.2	86.7	95.8	124.8	1	2.5	150	Check	Order
SZ1SMA78CAT3G	78	400	3.2	86.70	95.83	126.0	1	2.5	150	Check	Order
SZ1SMA8.0AT3G	8.0	400	29.4	8.89	9.83	13.6	1	25	150	Check	Order
SZ1SMA8.5AT3G	8.5	400	27.8	9.44	10.4	14.4	1	5	150	Check	Order
SZ1SMA85AT3G	85	400	2.9	94.4	104	137	1	2.5	150	Check	Order
SZ1SMA9.0AT3G	9.0	400	26	10.00	11.1	15.4	1	2.5	150	Check	Order
SZ1SMA90AT3G	90	400	2.7	100	111	146	1	2.5	150	Check	Order

Part #	Part Description	RoHS	Pb-free	RoHS (2015/ 863/EU) Certificate	REACH (SVHC’s) Declaration	Halogen Free	REACH (SVHC’s)
SZ1SMA10AT3G	ZEN SMA TVS 400W 10V TR	No 02/21/2019	No 02/21/2019			Yes 02/21/2019
SZ1SMA10CAT3G	ZEN SMA TVS CLP 400W 10V TR	No 02/21/2019	No 02/21/2019			Yes 02/21/2019
SZ1SMA11AT3G	ZEN SMA TVS 400W 11V TR	No 02/21/2019	No 02/21/2019			Yes 02/21/2019
SZ1SMA12AT3G	ZEN SMA TVS 400W 12V TR	No 02/21/2019	No 02/21/2019			Yes 02/21/2019
SZ1SMA12CAT3G	ZEN SMA TVS CLP 400W 12V TR	No 02/21/2019	No 02/21/2019			Yes 02/21/2019
SZ1SMA13AT3G	400 Watt SMA Transient Voltage Suppressor 13 V Unidirectional	No 10/29/2017	No 10/29/2017			Yes 10/29/2017
SZ1SMA14AT3G	ZEN SMA TVS 400W 14V TR	No 02/21/2019	No 02/21/2019			Yes 02/21/2019
SZ1SMA15AT3G	SMA Transient Voltage Suppressor 15 V 400 W Unidirectional	No 10/29/2017	No 10/29/2017			Yes 10/29/2017
SZ1SMA16AT3G	400 Watt SMA Transient Voltage Suppressor 16 V Unidirectional	No 10/29/2017	No 10/29/2017	CoC_RoHS9_SZ1SMA16AT3G_01-16-2020	REACH205_Declaration_with_Pb_SZ1SMA16AT3G_01-22-2020	Yes 10/29/2017	Contains
SZ1SMA17AT3G	ZEN SMA TVS 400W 17V TR	No 02/21/2019	No 02/21/2019			Yes 02/21/2019
SZ1SMA18AT3G	400 Watt SMA Transient Voltage Suppressor 180 V Unidirectional	No 10/29/2017	No 10/29/2017			Yes 10/29/2017
SZ1SMA20AT3G	400 Watt SMA Transient Voltage Suppressor 20 V Unidirectional	No 10/29/2017	No 10/29/2017	CoC_RoHS9_SZ1SMA20AT3G_2-2-2021	REACH211_Declaration_-Contain-_SZ1SMA20AT3G_2-2-2021	Yes 10/29/2017	Contains
SZ1SMA20CAT3G	ZEN SMA TVS CLP 400W 20V TR	No 02/21/2019	No 02/21/2019			Yes 02/21/2019
SZ1SMA22AT3G	400 Watt SMA Transient Voltage Suppressor 22 V Unidirectional	No 10/29/2017	No 10/29/2017			Yes 10/29/2017
SZ1SMA24AT3G	Transient Voltage Suppressor Unidirectional 24 V 400 Watt	No 10/29/2017	No 10/29/2017	CoC_RoHS9_SZ1SMA24AT3G_10-21-2019	REACH201_Declaration_with_Pb_SZ1SMA24AT3G_10-21-2019	Yes 10/29/2017	Contains
SZ1SMA26AT3G	400 Watt SMA Transient Voltage Suppressor 26 V Unidirectional	No 10/29/2017	No 10/29/2017			Yes 10/29/2017
SZ1SMA28AT3G	400 Watt SMA Transient Voltage Suppressor 28 V Unidirectional	No 09/17/2017	No 09/17/2017	CoC_RoHS9_SZ1SMA28AT3G_04-03-2018		Yes 09/17/2017
SZ1SMA30AT3G	400 Watt SMA Transient Voltage Suppressor 30 V Unidirectional	No 10/29/2017	No 10/29/2017	CoC_RoHS9_SZ1SMA30AT3G_03-23-2018	REACH211_Declaration_-Contain-_SZ1SMA30AT3G_2-25-2021	Yes 10/29/2017	Contains
SZ1SMA33AT3G	400 Watt SMA Transient Voltage Suppressor 33 V Unidirectional	No 10/29/2017	No 10/29/2017		REACH209_Declaration_-Contain-_SZ1SMA33AT3G_12-29-2020	Yes 10/29/2017	Contains
SZ1SMA36AT3G	400 Watt SMA Transient Voltage Suppressor 36 V Unidirectional	No 10/29/2017	No 10/29/2017			Yes 10/29/2017
SZ1SMA40AT3G	ZEN SMA TVS 400W 40V TR	No 02/21/2019	No 02/21/2019			Yes 02/21/2019
SZ1SMA43AT3G	400 Watt SMA Transient Voltage Suppressor 43 V Unidirectional	No 10/29/2017	No 10/29/2017			Yes 10/29/2017
SZ1SMA45AT3G	ZEN SMA TVS 400W 45V TR	No 02/21/2019	No 02/21/2019			Yes 02/21/2019
SZ1SMA48AT3G	400 Watt SMA Transient Voltage Suppressor 48 V Unidirectional	No 10/29/2017	No 10/29/2017	CoC_RoHS9_SZ1SMA48AT3G_11-19-2020	REACH209_Declaration_-Contain-_SZ1SMA48AT3G_11-19-2020	Yes 10/29/2017	Contains
SZ1SMA5.0AT3G	Zener Transient Voltage Suppressor 5.0 V 400 Watt	No 10/29/2017	No 10/29/2017	CoC_RoHS9_SZ1SMA5.0AT3G_02-22-2019	REACH197_Declaration_with_Pb_SZ1SMA5.0AT3G_02-22-2019	Yes 10/29/2017	Contains
SZ1SMA54AT3G	400 Watt SMA Transient Voltage Suppressor 54 V Unidirectional	No 10/29/2017	No 10/29/2017	CoC_RoHS9_SZ1SMA54AT3G_02-22-2018	REACH191_Declaration_with_Pb_SZ1SMA54AT3G_09-28-2018	Yes 10/29/2017	Contains
SZ1SMA58AT3G	Zener Transient Voltage Suppressor 58 V 400 Watt	No 10/29/2017	No 10/29/2017	CoC_RoHS9_SZ1SMA58AT3G_02-28-2018	REACH191_Declaration_with_Pb_SZ1SMA58AT3G_09-18-2018	Yes 10/29/2017	Contains
SZ1SMA6.0AT3G	ZEN SMA TVS 400W 6.0V TR	No 02/21/2019	No 02/21/2019			Yes 02/21/2019
SZ1SMA6.5AT3G	ZEN SMA TVS 400W 6.5V TR	No 02/21/2019	No 02/21/2019			Yes 02/21/2019
SZ1SMA60CAT3G	ZEN SMA TVS CLP 400W 60V TR	No 02/21/2019	No 02/21/2019	CoC_RoHS9_SZ1SMA60CAT3G_01-15-2020	REACH201_Declaration_with_Pb_SZ1SMA60CAT3G_01-15-2020	Yes 02/21/2019	Contains
SZ1SMA70AT3G	400 Watt SMA Transient Voltage Suppressor 70 V Unidirectional	No 10/29/2017	No 10/29/2017			Yes 10/29/2017
SZ1SMA78CAT3G	ZEN SMA TVS CLP 400W 78V TR	No 02/21/2019	No 02/21/2019			Yes 02/21/2019
SZ1SMA8.0AT3G	ZEN SMA TVS 400W 8.0V TR	No 02/21/2019	No 02/21/2019			Yes 02/21/2019
SZ1SMA8.5AT3G	ZEN SMA TVS 400W 8.5V TR	No 02/21/2019	No 02/21/2019			Yes 02/21/2019
SZ1SMA9.0AT3G	ZEN SMA TVS 400W 9.0V TR	No 02/21/2019	No 02/21/2019			Yes 02/21/2019

If the product environmental information that you are looking for does not appear in this tab,
please complete the Product Environmental Information Request Form.

	ESD Protection Solutions
	xEV power train
	Application Hints for Transient Voltage Suppression Diode Circuits
	Unidirectional versus Bidirectional Protection
	Automotive Electronics Applications Guide This guide provides a summary of key circuit protection consideration factors, descriptions of the technologies Littelfuse offers, and product selection tables. It is designed to help you quickly find a protection solution appropriate to your application.
	ECAD Models

Automotive Sensors

Battery Management

Battery mini-Breakers (Thermal Cutoff Devices)

Custom-Engineered Electrical Equipment

DC Power Distribution Modules

DC Solenoids and Relays

DC Vehicle Connectors

EMC Components

Fuse Blocks Fuse Holders and Fuse Accessories

Fuses

Fusible Switches and Panels

Gas Discharge Tubes

Magnetic Sensors and Reed Switches

Other Products and Accessories

Polymer ESD Suppressors

PolyZen Devices

Power Semiconductors

Protection Relays and Controls

PolySwitch Resettable PTC Fuses

Semiconductors

Power Semiconductors

LED Protectors

SIDACtor® Protection Thyristors

TVS Diode Arrays

TVS Diodes

Shock-Block™ GFCI

Surge Protection Modules and Devices

Switches

Temperature Sensors

Varistors

Datasheets & Downloads

SZ1SMA Series - 400W in SMA Package

Application Spotlight

Connect with Littelfuse

About Littelfuse

Explore Littelfuse Products

Technical Resources & Quality

Semiconductors

SZ1SMA Series - 400W in SMA Package

Application Spotlight

Connect with Littelfuse

About Littelfuse

Explore Littelfuse Products

Technical Resources & Quality

Your Privacy

Essential

Performance and analytical technologies

Functionality

Targeting or Advertising