Fail Safe Device

Series: UMT-W

Surface Mount Fuse, 5.3 x 16 mm, Super-Time-Lag TT, 125 VAC / 125 VDC, Breaking Capacity ≤ 1000 A

10 Variants

Approvals and Compliances

CAD

Microsite SMD Fuses

Description

5 rated currents from 5 A to 20 A
Square design: 5.3 x 16
Impermeable to potting compound used to achieve hermetic seal for use in intrinsically safe applications according to ATEx and IECEx requirements.

Unique Selling Proposition

Suitable as Fail Safe Device
Very high melting integral
Precisely defined melting times (min/max)

Applications

Avionics
Wire protection
Fail-Safe Applications
Suitable for motor drive applications with medium to long motor cables

Other versions on request

Different Up Screenings
Extensive Test Reports
Visual Inspection according MIL-PRF 55342

Detailed request for product

Application Note Primary Protection in Equipmentwith further information on increased Pulse Strength and their test conditions according to international standards see Impulse Withstand Voltage

Details UMT-W

Technical Data

Approvals and Compliances

CAD-Drawings

Dimension

Electrical Data

Rated Voltage

125 VAC, 125 VDC

Rated current

5 - 20 A

Breaking Capacity

up to 1000 A

Characteristic

Super-Time-Lag TT

Mounting

PCB,SMT

Admissible Ambient Temp.

-55 °C to 125 °C

Climatic Category

55/125/21 acc. to IEC 60068-1

Material: Housing

Ceramics

Material: Terminals

Ni/Sn-Plated Copper Alloy

Unit Weight

1.42 g

Storage Conditions

0 °C to 40 °C, max. 70% r.h.

Product Marking

Schurter_Prüfzeichen , Rated current, Voltage, Characteristic, Breaking Capacity, Approvals

Soldering Methods

Reflow
Soldering Profile

Solderability

JESD22-B102E, Method 1

Resistance to Soldering Heat

JEDEC J-STD-020

Moisture Sensitivity Level

MSL 1, J-STD-020

Moisture Sensitivity Level

MIL-STD-202, Method 106

Thermal Shock

MIL-STD-202, Method 107

Operational Life

MIL-STD-202, Method 108 Condition F

Load Humidity Test

MIL-STD-202, Method 103

Vibration, High Frequency

MIL-STD-202, Method 204 Condition C

Mechanical Shock

MIL-STD-202, Method 213 Condition C

Resistance to Solvents

MIL-STD-202, Method 215

Temperature Cycling

JESD22 Method JA-104

Board Flex

AEC-Q200-005

Detailed information on product approvals, code requirements, usage instructions and detailed test conditions can be looked up in Details about Approvals
SCHURTER products are designed for use in industrial environments. They have approvals from independent testing bodies according to national and international standards. Products with specific characteristics and requirements such as required in the automotive sector according to IATF 16949, medical technology according to ISO 13485 or in the aerospace industry can be offered exclusively with customer-specific, individual agreements by SCHURTER.

Approvals

The approval mark is used by the testing authorities to certify compliance with the safety requirements placed on electronic products.

Approval Reference Type: UMT-W

Approval Logo	Certificates	Certification Body	Description
	UL Approvals	UL	UR File Number: E41599

Product standards

Product standards that are referenced

Organization	Design	Standard	Description
	Designed according to	IEC 60127-7	Miniature fuses - Part 7: Miniature fuse-links for special applications
	Designed according to	UL 248-14	Low voltage fuses - Part 14: Supplemental fuses

Application standards

Application standards where the product can be used

Organization	Design	Standard	Description
	Suitable for applications acc.	IEC/UL 62368-1	Audio/video, information and communication technology equipment - Part 1: Safety requirements

Compliances

The product complies with following Guide Lines

Details	Initiator	Description
CE declaration of conformity	SCHURTER AG	The CE marking declares that the product complies with the applicable requirements laid down in the harmonisation of Community legislation on its affixing in accordance with EU Regulation 765/2008.
UKCA declaration of conformity	SCHURTER AG	The UKCA marking declares that the product complies with the applicable requirements laid down in the British Amendment of Regulation (EC) 765/2008.
RoHS	SCHURTER AG	Directive RoHS 2011/65/EU, Amendment (EU) 2015/863
China RoHS	SCHURTER AG	The law SJ / T 11363-2006 (China RoHS) has been in force since 1 March 2007. It is similar to the EU directive RoHS.
Halogen Free	SCHURTER AG	SCHURTER strives to offer our customers halogen free products.
REACH	SCHURTER AG	On 1 June 2007, Regulation (EC) No 1907/2006 on the Registration, Evaluation, Authorization and Restriction of Chemicals 1 (abbreviated as "REACH") entered into force.

Dimension [mm]

	Soldering pads

Derating Curves


Percentage of Rating [%]
	Ambient Temperature [°C]

Pre-Arcing Time

Rated Current In	1.0 x In min.	2.5 x In min.	4.0 x In min.	4.0 x In max.	10.0 x In min.	10.0 x In max.
5 A - 20 A	4 h	3.5 s	600 ms	20 s	25 ms	1 s

Time-Current-Curves


Time in Seconds
	Current in Amperes

Short Table of Variants UMT-W Open complete table UMT-W

Rated Current [A]	Rated Voltage [VAC]	Rated Voltage [VDC]	Order Number	...

5	125	125	3-122-712	...
5	125	125	3-122-713	...
7.5	125	125	3-122-714	...
7.5	125	125	3-122-715	...
10	125	125	3-122-716	...
10	125	125	3-122-717	...
15	125	125	3-122-718	...
15	125	125	3-122-719	...
20	125	125	3-122-720	...
20	125	125	3-122-721	...
1) UL = 350 A @ 125 VAC / 350 A @ 125 VDC 1) Internal tests = 1'500 A @ 125 VAC with cos(φ) ≥ 0.75 / 1500 A @ 250 VDC with τ <0.3 ms 2) UL = 350 A @ 125 VAC / 350 A @ 125 VDC 2) Internal tests = 1'000 A @ 125 VAC with cos(φ) ≥ 0.75 / 500 A @ 125 VDC with τ <0.3 ms ____________________________________________________________________________ All measurements are carried out on a test board according to IEC 60127 with the following tracks: 5 A: Track width 5.0 mm, Cu layer 35 µm 6.3 A, 7.5 A: Track width 7.5 mm, Cu layer 70 µm 10 A: Track width 7.5 mm, Cu layer 140 µm 15 A, 20 A: Track width 10 mm, Cu layer 140 µm

Packaging Unit
acc. IEC 60286-3 Type 2a

	100 pcs in ESD-plastic bag
	1500 pcs. in tape [W: 24mm and P1: 8mm] on reel [A: 33cm]

Table of Variants UMT-W

Rated Current [A]	Rated Voltage [VAC]	Rated Voltage [VDC]	Breaking Capacity	Voltage Drop 1.0 In typ. [mV]	Power Dissipation 1.0 In typ. [mW]	Melting I²t 10.0 In typ. [A²s]		Order Number	PU Packaging unit The packaging unit is the amount of parts in a standard package. Please contact SCHURTER for further assistance: Contact Form

5	125	125	1)	80	400	230	•	3-122-712	100
5	125	125	1)	80	400	230	•	3-122-713	1500
7.5	125	125	2)	40	300	320	•	3-122-714	100
7.5	125	125	2)	40	300	320	•	3-122-715	1500
10	125	125	2)	41	420	510	•	3-122-716	100
10	125	125	2)	41	420	510	•	3-122-717	1500
15	125	125	2)	40	630	1480	•	3-122-718	100
15	125	125	2)	40	630	1480	•	3-122-719	1500
20	125	125	2)	40	835	2800	•	3-122-720	100
20	125	125	2)	40	835	2800	•	3-122-721	1500
1) UL = 350 A @ 125 VAC / 350 A @ 125 VDC 1) Internal tests = 1'500 A @ 125 VAC with cos(φ) ≥ 0.75 / 1500 A @ 250 VDC with τ <0.3 ms 2) UL = 350 A @ 125 VAC / 350 A @ 125 VDC 2) Internal tests = 1'000 A @ 125 VAC with cos(φ) ≥ 0.75 / 500 A @ 125 VDC with τ <0.3 ms ____________________________________________________________________________ All measurements are carried out on a test board according to IEC 60127 with the following tracks: 5 A: Track width 5.0 mm, Cu layer 35 µm 6.3 A, 7.5 A: Track width 7.5 mm, Cu layer 70 µm 10 A: Track width 7.5 mm, Cu layer 140 µm 15 A, 20 A: Track width 10 mm, Cu layer 140 µm