Subminiature fuse 8.5 mm, time-lag T, 250 VAC
Short terminal

Subminiature fuse 8.5 mm, time-lag T, 250 VAC
Terminal long
PCB

Series: MST 250

Subminiature Fuse, 8.5 mm, Time-Lag T, 250 VAC, 63 VDC

66 Variants

Approvals and Compliances

CAD

Description

Directly solderable on printed circuit boards
Low Breaking Capacity

Applications

Primary Protection on PCB
Power Supply Adapter for e.g. laptops
SMPS (Switching Mode Power Supply) for TV's and DVD's

Detailed request for product

Details MST 250

Technical Data

Approvals and Compliances

CAD-Drawings

Dimension

Electrical Data

Rated Voltage

250 VAC, 63 VDC

Rated current

0.05 - 6.3 A

Breaking Capacity

35 A - 63 A

Characteristic

Time-Lag T

Mounting

PCB,THT

Admissible Ambient Temp.

-55 °C to 125 °C

Climatic Category

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

Material: Housing

Thermoplastic, UL 94V-0

Material: Terminals

Tin-Plated Copper

Unit Weight

0.53 g

Storage Conditions

0 °C to 40 °C, max. 70% r.h.

Product Marking

Schurter_Prüfzeichen , Type, Rated current, Rated Voltage, Characteristic, Certification marks

Soldering Methods

Wave
Soldering Profile

Solderability

235 °C / 2 sec acc. to IEC 60068-2-20, Test Ta

Resistance to Soldering Heat

260 °C / 10 sec acc. to IEC 60068-2-20, Test Tb

Case Resistance

acc. to EIA/IS-722, Test 4.7
>100 MΩ (between leeds and body)

Flammability

UL 94V-0
(acc. to EIA/IS-722, Test 4.12)

Current Carrying Capacity

acc. to EIA/IS-722, Test 4.3.3

Moisture Sensitivity Level

MIL-STD-202, Method 106
(50 cycles in a temp./mister chamber)

Vibration, High Frequency

MIL-STD-202, Method 204 Condition D

Mechanical Shock

MIL-STD-202, Method 213 Condition A

Resistance to Solvents

MIL-STD-202, Method 215

Terminal Strength

Tensile load min. 9 N
(acc. to EIA/IS-722, Test 4.5.1)

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: MST 250

Certificates	Certification Body	Description
VDE Approvals	VDE	VDE Certificate Number: 40046346
VDE Approvals	VDE	VDE Certificate Number: 40002080
UL Approvals	UL	UR File Number: E41599
CCC Approvals	CCC	CCC Certificate Number: 2020970207000096
KTL Approvals	KTL	Korea Testing Laboratory
METI Approvals	METI	Japan Electrical Safety and Environment technology Laboratories

Product standards

Product standards that are referenced

Design	Standard	Description
Designed according to	IEC 60127-3/4	Miniature fuses - Part 3: Miniature fuse-links
Designed according to	UL 248-14	Low voltage fuses - Part 14: Supplemental fuses
Designed according to	CSA22.2 No. 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.
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]



	Drilling diagram

Derating Curves

Pre-Arcing Time

Rated Current In	1.5 x In min.	2.1 x In max.	2.75 x In min.	2.75 x In max.	4.0 x In min.	4.0 x In max.	10.0 x In min.	10.0 x In max.
0.05 A - 6.3 A	60 min	120 s	400 ms	10 s	150 ms	3 s	20 ms	150 ms

Time-Current-Curves


Time in Seconds
	Multiple of Rated Current In

Short Table of Variants MST 250 Open complete table MST 250

Rated Current [A]	Rated Voltage [VAC]	Breaking Capacity	Order Number	...

0.05	250	1)	0034.6602	...
0.05	250	1)	0034.6702	...
0.05	250	1)	0034.6802	...
0.063	250	1)	0034.6603	...
0.063	250	1)	0034.6703	...
0.063	250	1)	0034.6803	...
0.08	250	1)	0034.6604	...
0.08	250	1)	0034.6704	...
0.08	250	1)	0034.6804	...
0.1	250	1)	0034.6605	...
0.1	250	1)	0034.6705	...
0.1	250	1)	0034.6805	...
0.125	250	1)	0034.6606	...
0.125	250	1)	0034.6706	...
0.125	250	1)	0034.6806	...
0.16	250	1)	0034.6607	...
0.16	250	1)	0034.6707	...
0.16	250	1)	0034.6807	...
0.2	250	1)	0034.6608	...
0.2	250	1)	0034.6708	...
0.2	250	1)	0034.6808	...
0.25	250	1)	0034.6609	...
0.25	250	1)	0034.6709	...
0.25	250	1)	0034.6809	...
0.315	250	1)	0034.6610	...
0.315	250	1)	0034.6710	...
0.315	250	1)	0034.6810	...
0.4	250	1)	0034.6611	...
0.4	250	1)	0034.6711	...
0.4	250	1)	0034.6811	...
0.5	250	1)	0034.6612	...
0.5	250	1)	0034.6712	...
0.5	250	1)	0034.6812	...
0.63	250	1)	0034.6613	...
0.63	250	1)	0034.6713	...
0.63	250	1)	0034.6813	...
0.8	250	1)	0034.6614	...
0.8	250	1)	0034.6714	...
0.8	250	1)	0034.6814	...
1	250	1)	0034.6615	...
1	250	1)	0034.6715	...
1	250	1)	0034.6815	...
1.25	250	1)	0034.6616	...
1.25	250	1)	0034.6716	...
1.25	250	1)	0034.6816	...
1.6	250	1)	0034.6617	...
1.6	250	1)	0034.6717	...
1.6	250	1)	0034.6817	...
2	250	1)	0034.6618	...
2	250	1)	0034.6718	...
2	250	1)	0034.6818	...
2.5	250	1)	0034.6619	...
2.5	250	1)	0034.6719	...
2.5	250	1)	0034.6819	...
3.15	250	1)	0034.6620	...
3.15	250	1)	0034.6720	...
3.15	250	1)	0034.6820	...
4	250	2)	0034.6621	...
4	250	2)	0034.6721	...
4	250	2)	0034.6821	...
5	250	3)	0034.6622	...
5	250	3)	0034.6722	...
5	250	3)	0034.6822	...
6.3	250	3)	0034.6623	...
6.3	250	3)	0034.6723	...
6.3	250	3)	0034.6823	...
1) IEC: 35 A @ 250 VAC 1) UL: 35 A @ 250 VAC / 50 A @ 63 VDC 2) IEC: 10 In @ 250 VAC 2) UL: 10 In @ 250 VAC / 50 A @ 63 VDC 3) IEC: 10 In @ 250 VAC 3) UL: 10 In @ 250 VAC / 10 In @ 63 VDC

Packaging Unit
acc. IEC 60286-2

S = 4.3 mm	100 pcs in ESD-plastic bag
L = 18.8 mm	100 St. (Bulk)
T = 18.8 mm	750 pcs. in tape [P = P0: 12.7; P1: 3.81; H1: 26.45] on reel [A: 360; W3: 40; W4: 52; C: 30.5]

Table of Variants MST 250

Rated Current [A]	Rated Voltage [VAC]	Breaking Capacity	Voltage Drop 1.0 In max. [mV]	Voltage Drop 1.0 In typ. [mV]	Power Dissipation 1.5 In max. [mW]	Melting I²t 10.0 In typ. [A²s]							S	L	T	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

0.05	250	1)	550	415	155	0.03	•		•		•	•	•			0034.6602	100
0.05	250	1)	550	415	155	0.03	•		•		•	•		•		0034.6702	100
0.05	250	1)	550	415	155	0.03	•		•		•	•			•	0034.6802	750
0.063	250	1)	480	420	160	0.05	•		•		•	•	•			0034.6603	100
0.063	250	1)	480	420	160	0.05	•		•		•	•		•		0034.6703	100
0.063	250	1)	480	420	160	0.05	•		•		•	•			•	0034.6803	750
0.08	250	1)	400	360	165	0.06	•		•		•	•	•			0034.6604	100
0.08	250	1)	400	360	165	0.06	•		•		•	•		•		0034.6704	100
0.08	250	1)	400	360	165	0.06	•		•		•	•			•	0034.6804	750
0.1	250	1)	350	320	170	0.08	•		•		•	•	•			0034.6605	100
0.1	250	1)	350	320	170	0.08	•		•		•	•		•		0034.6705	100
0.1	250	1)	350	320	170	0.08	•		•		•	•			•	0034.6805	750
0.125	250	1)	300	270	180	0.12	•		•		•	•	•			0034.6606	100
0.125	250	1)	300	270	180	0.12	•		•		•	•		•		0034.6706	100
0.125	250	1)	300	270	180	0.12	•		•		•	•			•	0034.6806	750
0.16	250	1)	280	190	190	0.24	•		•		•	•	•			0034.6607	100
0.16	250	1)	280	190	190	0.24	•		•		•	•		•		0034.6707	100
0.16	250	1)	280	190	190	0.24	•		•		•	•			•	0034.6807	750
0.2	250	1)	260	150	200	0.35	•		•		•	•	•			0034.6608	100
0.2	250	1)	260	150	200	0.35	•		•		•	•		•		0034.6708	100
0.2	250	1)	260	150	200	0.35	•		•		•	•			•	0034.6808	750
0.25	250	1)	240	120	220	0.6	•		•		•	•	•			0034.6609	100
0.25	250	1)	240	120	220	0.6	•		•		•	•		•		0034.6709	100
0.25	250	1)	240	120	220	0.6	•		•		•	•			•	0034.6809	750
0.315	250	1)	220	120	250	0.8	•		•		•	•	•			0034.6610	100
0.315	250	1)	220	120	250	0.8	•		•		•	•		•		0034.6710	100
0.315	250	1)	220	120	250	0.8	•		•		•	•			•	0034.6810	750
0.4	250	1)	200	110	280	1.1	•		•		•	•	•			0034.6611	100
0.4	250	1)	200	110	280	1.1	•		•		•	•		•		0034.6711	100
0.4	250	1)	200	110	280	1.1	•		•		•	•			•	0034.6811	750
0.5	250	1)	190	100	310	2.5	•		•		•	•	•			0034.6612	100
0.5	250	1)	190	100	310	2.5	•		•		•	•		•		0034.6712	100
0.5	250	1)	190	100	310	2.5	•		•		•	•			•	0034.6812	750
0.63	250	1)	180	90	360	4	•		•		•	•	•			0034.6613	100
0.63	250	1)	180	90	360	4	•		•		•	•		•		0034.6713	100
0.63	250	1)	180	90	360	4	•		•		•	•			•	0034.6813	750
0.8	250	1)	160	80	430	8	•		•		•	•	•			0034.6614	100
0.8	250	1)	160	80	430	8	•		•		•	•		•		0034.6714	100
0.8	250	1)	160	80	430	8	•		•		•	•			•	0034.6814	750
1	250	1)	140	70	500	12	•		•	•	•	•	•			0034.6615	100
1	250	1)	140	70	500	12	•		•	•	•	•		•		0034.6715	100
1	250	1)	140	70	500	12	•		•	•	•	•			•	0034.6815	750
1.25	250	1)	130	70	600	15	•		•	•	•	•	•			0034.6616	100
1.25	250	1)	130	70	600	15	•		•	•	•	•		•		0034.6716	100
1.25	250	1)	130	70	600	15	•		•	•	•	•			•	0034.6816	750
1.6	250	1)	120	60	730	30	•		•	•	•	•	•			0034.6617	100
1.6	250	1)	120	60	730	30	•		•	•	•	•		•		0034.6717	100
1.6	250	1)	120	60	730	30	•		•	•	•	•			•	0034.6817	750
2	250	1)	100	60	870	34	•		•	•	•	•	•			0034.6618	100
2	250	1)	100	60	870	34	•		•	•	•	•		•		0034.6718	100
2	250	1)	100	60	870	34	•		•	•	•	•			•	0034.6818	750
2.5	250	1)	100	50	1000	55	•		•	•	•	•	•			0034.6619	100
2.5	250	1)	100	50	1000	55	•		•	•	•	•		•		0034.6719	100
2.5	250	1)	100	50	1000	55	•		•	•	•	•			•	0034.6819	750
3.15	250	1)	100	50	1200	76	•		•	•	•	•	•			0034.6620	100
3.15	250	1)	100	50	1200	76	•		•	•	•	•		•		0034.6720	100
3.15	250	1)	100	50	1200	76	•		•	•	•	•			•	0034.6820	750
4	250	2)	100	50	1400	80	•		•	•	•	•	•			0034.6621	100
4	250	2)	100	50	1400	80	•		•	•	•	•		•		0034.6721	100
4	250	2)	100	50	1400	80	•		•	•	•	•			•	0034.6821	750
5	250	3)	-	50	-	230		•	•	•		•	•			0034.6622	100
5	250	3)	-	50	-	230		•	•	•		•		•		0034.6722	100
5	250	3)	-	50	-	230		•	•	•		•			•	0034.6822	750
6.3	250	3)	-	45	-	360		•	•			•	•			0034.6623	100
6.3	250	3)	-	45	-	360		•	•			•		•		0034.6723	100
6.3	250	3)	-	45	-	360		•	•			•			•	0034.6823	750
1) IEC: 35 A @ 250 VAC 1) UL: 35 A @ 250 VAC / 50 A @ 63 VDC 2) IEC: 10 In @ 250 VAC 2) UL: 10 In @ 250 VAC / 50 A @ 63 VDC 3) IEC: 10 In @ 250 VAC 3) UL: 10 In @ 250 VAC / 10 In @ 63 VDC

Packaging Unit
acc. IEC 60286-2

S = 4.3 mm	100 pcs in ESD-plastic bag
L = 18.8 mm	100 St. (Bulk)
T = 18.8 mm	750 pcs. in tape [P = P0: 12.7; P1: 3.81; H1: 26.45] on reel [A: 360; W3: 40; W4: 52; C: 30.5]

References / Document Downloads

References MST 250

Corresponding Fuseholder (1)

[Swipe to the left and right for more options]

FMS (250V)

Fuse Kit (1)