MDA-25A

## **1/4" x 1-1/4" Fuses MDA Series, Time Delay, Ceramic Tube** 

## **Description** 

- Time Delay, ceramic tube 

**==> picture [32 x 11] intentionally omitted <==**

**----- Start of picture text -----**<br>
RoHS<br>2002/95/EC<br>**----- End of picture text -----**<br>


- Optional axial leads available 

- 1/4 x 1-1/4 (6.3mm x 32mm) physical size 

- Ceramic tube, nickel-plated brass endcap construction 

- UL Listed product meets standard 248-14 

|• Time Delay, ceramic tube<br>• Optional axial leads available<br>• 1/4 x 1-1/4 (6.3mm x 32mm) physical size<br>• Ceramic tube, nickel-plated brass endcap construction<br>• UL Listed product meets standard 248-14|• Time Delay, ceramic tube<br>• Optional axial leads available<br>• 1/4 x 1-1/4 (6.3mm x 32mm) physical size<br>• Ceramic tube, nickel-plated brass endcap construction<br>• UL Listed product meets standard 248-14|• Time Delay, ceramic tube<br>• Optional axial leads available<br>• 1/4 x 1-1/4 (6.3mm x 32mm) physical size<br>• Ceramic tube, nickel-plated brass endcap construction<br>• UL Listed product meets standard 248-14|
|---|---|---|
|**ELECTRICAL CHARACTERISTICS**|||
|**Rated Current**|**Amp Rating**|**Opening Time**|
|1/4 - 30A|**Amp Rating**<br>100%|**Opening Time**<br>None|
||135%|60 Minutes Max.|
||200%|120 Seconds Max.|



## **Agency Information** 

- UL Listed Card: MDA 2/10 - 20A (Guide JDYX, File E19180) 

## **Dimensions** ([mm] ⁄in) 

Drawing Not to Scale 

- UL Recognized Card: MDA 25 - 30A (Guide JDYX2, File E19180) 

- CSA Certification Card: MDA 2/10 - 20 (Class No. 1422-01) 

- CSA Component Acceptance: MDA 25-30A (Class No. 1422-30) 

## **Environmental Data** 

- Shock: 1/100A and 8/10A – MIL-STD-202, Method 213, Test Condition I; 

- 1A thru 30A – MIL-STD-202, Method 207, (HI Shock) 

- Vibration: 1/100A and 8/10A – MIL-STD-202, Method 201; 1/4A thru 30A – MIL-STD-202, Method 204, Test Condition C (Except 5g, 500HZ) 

## **Ordering** 

- Specify packaging, product, and option code 

|**SPECIFICATIONS**<br>~~Cn~~|**SPECIFICATIONS**<br>~~Cn~~|**SPECIFICATIONS**<br>~~Cn~~|**SPECIFICATIONS**<br>~~Cn~~|**SPECIFICATIONS**<br>~~Cn~~|**SPECIFICATIONS**<br>~~Cn~~|**SPECIFICATIONS**<br>~~Cn~~|**SPECIFICATIONS**<br>~~Cn~~|**SPECIFICATIONS**<br>~~Cn~~|
|---|---|---|---|---|---|---|---|---|
|**Product**<br>**Code**<br>~~Cn~~<br>~~Po~~|**Voltage**<br>**Rating**<br>**AC**<br>**DC**<br>~~Cn~~||**AC Interrupting**<br>**Rating***<br>**250V**<br>**125V**||**DC Interrupting**<br>**Rating**<br>**125V**|**Typical DC Cold**<br>**Resistance****<br>**(ohms)**|**Typical**<br>**Melting I2t†**<br>**AC**|**Typical**<br>**t†**<br>**Voltage**<br>**Drop‡**|
|**MDA-1/4**<br>~~Po~~<br>~~Re~~|250V<br>~~rs~~|-<br>~~rs~~|35A<br>~~Ge QO~~|10000A<br>~~QO~~|-<br>~~QO~~|9.325<br>~~QO~~|0.68<br>~~QO~~|4.00<br>~~QO~~|
|**MDA-1/2**<br>~~Po~~<br>~~Re~~<br>~~Re~~|250V<br>~~rs~~<br>~~es~~|-<br>~~rs~~<br>~~rs~~|35A<br>~~Ge QO~~<br>~~GR QO~~|10000A<br>~~QO~~<br>~~QO~~|-<br>~~QO~~<br>~~QO~~|1.925<br>~~QO~~<br>~~QO~~|2.3<br>~~QO~~<br>~~QO~~|1.42<br>~~QO~~<br>~~QO~~|
|**MDA-3/4**<br>~~Re~~<br>~~Re~~<br>~~Re~~|250V<br>~~rs~~<br>~~es~~<br>~~rs~~|-<br>~~rs~~<br>~~rs~~<br>~~rs~~|35A<br>~~Ge QO~~<br>~~GR QO~~<br>~~Gr~~|10000A<br>~~QO~~<br>~~QO~~<br>~~QC~~|-<br>~~QO~~<br>~~QO~~<br>~~QC~~|0.8555<br>~~QO~~<br>~~QO~~<br>~~QC~~|7.8<br>~~QO~~<br>~~QO~~<br>~~QC~~|1.31<br>~~QO~~<br>~~QO~~<br>~~QC~~|
|**MDA-1**<br>~~Re~~<br>~~Re~~<br>~~Rs~~|250V<br>~~es~~<br>~~rs~~<br>~~rs~~|-<br>~~rs~~<br>~~rs~~<br>~~Gs~~|35A<br>~~GR QO~~<br>~~Gr~~<br>~~GD~~|10000A<br>~~QO~~<br>~~QC~~<br>~~QR~~|-<br>~~QO~~<br>~~QC~~<br>~~OO~~|0.560<br>~~QO~~<br>~~QC~~<br>~~OO~~|11.1<br>~~QO~~<br>~~QC~~<br>~~OO~~|1.03<br>~~QO~~<br>~~QC~~<br>~~OO~~|
|**MDA-1-1/2**<br>~~Re ~~<br>~~Rs~~<br>~~Rs~~|250V<br> ~~rs~~<br>~~rs~~<br>~~rs~~|-<br>~~rs~~<br>~~Gs~~<br>~~Gs~~|100A<br>~~Gr~~<br>~~GD~~<br>~~(QO~~|10000A<br>~~QC~~<br>~~QR~~<br>~~(QO~~|-<br>~~QC~~<br>~~OO~~<br>~~GD~~|0.2585<br>~~QC~~<br>~~OO~~<br>~~OO~~|25.0<br>~~QC~~<br>~~OO~~<br>~~OO~~|0.691<br>~~QC~~<br>~~OO~~|
|**MDA-2**<br>~~Rs~~<br>~~Rs~~<br>~~Rs~~|250V<br>~~rs~~<br>~~rs~~<br>~~rs~~|-<br>~~Gs~~<br>~~Gs~~<br>~~Gs~~|100A<br>~~GD~~<br>~~(QO~~<br>~~Gs~~|10000A<br>~~QR ~~<br>~~(QO~~<br>~~QO~~|-<br> ~~OO~~<br>~~GD~~<br>~~(DOO~~|0.1645<br>~~OO~~<br>~~OO~~<br>~~(DOO~~|64.0<br>~~OO~~<br>~~OO~~<br>~~(DOO~~|0.623<br>~~OO~~<br>~~(DOO~~|
|**MDA-2-1/2**<br>~~Rs ~~<br>~~Rs~~<br>~~Re~~|250V<br> ~~rs~~<br>~~rs~~<br>~~es~~|-<br>~~Gs~~<br>~~Gs~~<br>~~Gs~~|200A<br>~~(QO~~<br>~~Gs~~<br>~~Gs~~|10000A<br>~~(QO ~~<br>~~QO~~<br>~~Qs~~|-<br> ~~GD~~<br>~~(DOO~~<br>~~(OQ~~|0.06685<br>~~OO~~<br>~~(DOO~~<br>~~(OQ~~|28.9<br>~~OO~~<br>~~(DOO~~<br>~~(OQ~~|0.213<br>~~(DOO~~<br>~~(OQ~~|
|**MDA-3**<br>~~Rs ~~<br>~~Re~~<br>~~es~~|250V<br> ~~rs~~<br>~~es~~<br>~~es~~|-<br>~~Gs~~<br>~~Gs~~<br>~~es~~|200A<br>~~Gs~~<br>~~Gs~~<br>~~Gs~~|10000A<br>~~QO ~~<br>~~Qs~~<br>~~Qe~~|-<br> ~~(DOO~~<br>~~(OQ~~<br>~~QQ~~|0.0507<br>~~(DOO~~<br>~~(OQ~~<br>~~QQ~~|40.9<br>~~(DOO~~<br>~~(OQ~~<br>~~QQ~~|0.182<br>~~(DOO~~<br>~~(OQ~~<br>~~QQ~~|
|**MDA-4**<br>~~Re~~<br>~~es~~<br>~~es~~|250V<br>~~es~~<br>~~es~~<br>~~se~~|-<br>~~Gs~~<br>~~es~~<br>~~se~~|200A<br>~~Gs~~<br>~~Gs~~<br>~~Gs~~|10000A<br>~~Qs~~<br>~~Qe~~<br>~~Qe~~|-<br>~~(OQ~~<br>~~QQ~~<br>~~QO~~|0.0346<br>~~(OQ~~<br>~~QQ~~<br>~~QO~~|134.0<br>~~(OQ~~<br>~~QQ~~<br>~~QO~~|0.162<br>~~(OQ~~<br>~~QQ~~<br>~~QO~~|
|**MDA-5**<br>~~es ~~<br>~~es~~<br>~~PO~~|250V<br> ~~es~~<br>~~se~~|-<br>~~es~~<br>~~se~~|200A<br>~~Gs~~<br>~~Gs~~|10000A<br>~~Qe ~~<br>~~Qe~~|-<br> ~~QQ~~<br>~~QO~~|0.02355<br>~~QQ~~<br>~~QO~~|345.9<br>~~QQ~~<br>~~QO~~|0.145<br>~~QQ~~<br>~~QO~~|
|**MDA-6**<br>~~es ~~<br>~~PO~~<br>~~Po~~|250V<br> ~~se~~|-<br>~~se~~|200A<br>~~Gs~~|10000A<br>~~Qe ~~|-<br> ~~QO~~|0.01850<br>~~QO~~|534.3<br>~~QO~~|0.141<br>~~QO~~|
|**MDA-7**<br>~~PO~~<br>~~Po~~<br>~~Po~~|250V|-|200A|10000A|-|0.01475|580.3|0.137|
|**MDA-8**<br>~~Po~~<br>~~Po~~<br>~~Re~~|250V<br>~~rs~~|-<br>~~rs~~|200A<br>~~Ge QO~~|10000A<br>~~QO~~|-<br>~~QO~~|0.01230<br>~~QO~~|944.0<br>~~QO~~|0.134<br>~~QO~~|
|**MDA-10**<br>~~Po~~<br>~~Re~~<br>~~Re~~|250V<br>~~rs~~<br>~~es~~|-<br>~~rs~~<br>~~rs~~|200A<br>~~Ge QO~~<br>~~GR QO~~|10000A<br>~~QO~~<br>~~QO~~|-<br>~~QO~~<br>~~QO~~|0.00858<br>~~QO~~<br>~~QO~~|1491.3<br>~~QO~~<br>~~QO~~|N/A<br>~~QO~~<br>~~QO~~|
|**MDA-12**<br>~~Re~~<br>~~Re~~<br>~~Re~~|250V<br>~~rs~~<br>~~es~~<br>~~rs~~|-<br>~~rs~~<br>~~rs~~<br>~~rs~~|750A<br>~~Ge QO~~<br>~~GR QO~~<br>~~Gr~~|10000A<br>~~QO~~<br>~~QO~~<br>~~QC~~|-<br>~~QO~~<br>~~QO~~<br>~~QC~~|0.00725<br>~~QO~~<br>~~QO~~<br>~~QC~~|113.8<br>~~QO~~<br>~~QO~~<br>~~QC~~|0.114<br>~~QO~~<br>~~QO~~<br>~~QC~~|
|**MDA-15**<br>~~Re~~<br>~~Re~~<br>~~Rs~~|250V<br>~~es~~<br>~~rs~~<br>~~rs~~|-<br>~~rs~~<br>~~rs~~<br>~~Gs~~|750A<br>~~GR QO~~<br>~~Gr~~<br>~~GD~~|10000A<br>~~QO~~<br>~~QC~~<br>~~QR~~|-<br>~~QO~~<br>~~QC~~<br>~~OO~~|0.00543<br>~~QO~~<br>~~QC~~<br>~~OO~~|206.2<br>~~QO~~<br>~~QC~~<br>~~OO~~|0.107<br>~~QO~~<br>~~QC~~<br>~~OO~~|
|**MDA-20**<br>~~Re ~~<br>~~Rs~~<br>~~Rs~~|250V<br> ~~rs~~<br>~~rs~~<br>~~rs~~|125V<br>~~rs~~<br>~~Gs~~<br>~~Gs~~|1500A<br>~~Gr~~<br>~~GD~~<br>~~(QO~~|10000A<br>~~QC~~<br>~~QR~~<br>~~(QO~~|10000A<br>~~QC~~<br>~~OO~~<br>~~GD~~|0.00358<br>~~QC~~<br>~~OO~~<br>~~OO~~|439.5<br>~~QC~~<br>~~OO~~<br>~~OO~~|0.095<br>~~QC~~<br>~~OO~~|
|**MDA-25A**<br>~~Rs~~<br>~~Rs~~<br>~~es~~|250V<br>~~rs~~<br>~~rs~~<br>~~rs~~|125V<br>~~Gs~~<br>~~Gs~~<br>~~rs~~|1500A<br>~~GD~~<br>~~(QO~~<br>~~GQ~~|10000A<br>~~QR ~~<br>~~(QO~~<br>~~GQ~~|10000A<br> ~~OO~~<br>~~GD~~<br>~~GQ~~|0.00309<br>~~OO~~<br>~~OO~~<br>~~GQ~~|667.9<br>~~OO~~<br>~~OO~~<br>~~GQ~~|0.105<br>~~OO~~<br>~~GQ~~|
|**MDA-30A**<br>~~Rs ~~<br>~~es~~|250V<br> ~~rs~~<br>~~rs~~|125V<br>~~Gs~~<br>~~rs~~|1500A<br>~~(QO~~<br>~~GQ~~|10000A<br>~~(QO ~~<br>~~GQ~~|10000A<br> ~~GD~~<br>~~GQ~~|0.00243<br>~~OO~~<br>~~GQ~~|997.0<br>~~OO~~<br>~~GQ~~|0.110<br>~~GQ~~|



- Interrupting Ratings (Measured at 70% - 80% power factor on AC. The interrupting ratings for 25Amp, 30Amp were measured at 90% - 100% power factor on AC) 

- ** DC Cold Resistance (Measured at ≤10% of rated current) 

- Typical Melting I[2] t (A[2] Sec) (I[2] t was measured at listed interrupting rating and rated voltage) 

- Typical Voltage Drop (Voltage drop was measured at 25°C ambient temperature at rated current) 

## **1/4" x 1-1/4" Fuses MDA Series, Time Delay, Ceramic Tube** 

## **TIME CURRENT CURVE** 

CURRENT  IN  AMPERES 

**==> picture [326 x 383] intentionally omitted <==**

**----- Start of picture text -----**<br>
CURRENT  IN  AMPERES<br>TIME<br>IN<br>SECONDS<br>1/4 1/2 1 2 3-2/10 4 5 6-1/4 10 12 15 20 25 30<br>SECONDS<br>IN<br>TIME<br>**----- End of picture text -----**<br>


|**PACKAGING CODE**|**PACKAGING CODE**|
|---|---|
|**Packaging Code**|**Description**|
|**BK**|100 pieces of fuses packed into a cardboard carton|
|**BK1**|1,000 pieces of fuses packed into a cardboard carton|
|**BK8**|8,000 pieces of fuses packed into a cardboard carton|
|||
|**OPTION CODE**||
|**Option Code**|**Description**|
|**B**|Board Washable-Hermetically sealed to withstand aqueous cleaning|
|**V**|Axial leads-copper tinned wire with nickel plated brass overcaps|
|**-R**|RoHS compliant version|



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