Fuse - Slow-Blow, 250V, 3AG, 0.25" x 1.25"

Fuse - Slow-Blow, 250V, 3AG, 0.25" x 1.25"

Fuse - Slow-Blow, 250V, 3AG, 0.25" x 1.25" image 1
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Fuse - Slow-Blow, 250V, 3AG, 0.25" x 1.25" image 1Fuse - Slow-Blow, 250V, 3AG, 0.25" x 1.25" image 2
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$3.25
Package of 5
Sold as a package of 5
In Stock

Protect your expensive investment or hobby with inexpensive fuses. The 3AG Slo-Blo fuse solves a broad range of application requirements while offering reliable performance and costeffective circuit protection. Fits fuse block S-H259 and fuse holder S-H201.

  • Rated at 250V
  • Measures 1.25"(31.4mm) in length, 0.25"(6.3mm) in diameter
  • Slow-Blow
  • Package of 5
Part Numbers
AmperageOur Part NumberUPC/EAN
0.5 AmpsF-Z3AG-S0D5841358108280
1 AmpF-Z3AG-S1609722131148
1.5 AmpsF-Z3AG-S1D5841358108396
2 AmpsF-Z3AG-S2609722131155
2.5 AmpsF-Z3AG-S2D5609722164399
3 AmpsF-Z3AG-S3609722131162
4 AmpsF-Z3AG-S4609722131179
5 AmpsF-Z3AG-S5609722131186
6.25 AmpsF-Z3AG-S6D25609722131193
Product Measurements by Type
Cap Materialnickel-plated brass
Diameter0.25 in.
Interrupting Rating @ 125 VAC10,000 A
Interrupting Rating @ 250 VAC0.5 Amps versionF-Z3AG-S0D535 A
1 Amp versionF-Z3AG-S135 A
1.5 Amps versionF-Z3AG-S1D5100 A
2 Amps versionF-Z3AG-S2100 A
2.5 Amps versionF-Z3AG-S2D5100 A
3 Amps versionF-Z3AG-S3100 A
4 Amps versionF-Z3AG-S4200 A
5 Amps versionF-Z3AG-S5200 A
6.25 Amps versionF-Z3AG-S6D25200 A
Item Length1.25 in.
Nominal Cold Resistance0.5 Amps versionF-Z3AG-S0D51.26 Ω
1 Amp versionF-Z3AG-S10.3750 Ω
1.5 Amps versionF-Z3AG-S1D50.1910 Ω
2 Amps versionF-Z3AG-S20.1169 Ω
2.5 Amps versionF-Z3AG-S2D50.0811 Ω
3 Amps versionF-Z3AG-S30.0593 Ω
4 Amps versionF-Z3AG-S40.0311 Ω
5 Amps versionF-Z3AG-S50.0214 Ω
6.25 Amps versionF-Z3AG-S6D250.0154 Ω
Nominal Melting Point (I2t)0.5 Amps versionF-Z3AG-S0D52.55 A
1 Amp versionF-Z3AG-S114 A
1.5 Amps versionF-Z3AG-S1D538.0 A
2 Amps versionF-Z3AG-S277.0 A
2.5 Amps versionF-Z3AG-S2D5199 A
3 Amps versionF-Z3AG-S3200 A
4 Amps versionF-Z3AG-S476.1 A
5 Amps versionF-Z3AG-S5276 A
6.25 Amps versionF-Z3AG-S6D25388 A
Operating Temperature (TJ)-55ºC to 125ºC
Voltage Rating250 V
Packaging Information
Packaging Dimensions0.5 Amps versionF-Z3AG-S0D53.014 in. × 3.025 in. × 0.256 in.
1 Amp versionF-Z3AG-S13.197 in. × 2.95 in. × 0.253 in.
1.5 Amps versionF-Z3AG-S1D52.291 in. × 2.949 in. × 0.204 in.
2 Amps versionF-Z3AG-S22.402 in. × 3.033 in. × 0.197 in.
2.5 Amps versionF-Z3AG-S2D52.99 in. × 2.98 in. × 0.254 in.
3 Amps versionF-Z3AG-S33.503 in. × 2.959 in. × 0.254 in.
4 Amps versionF-Z3AG-S43.23 in. × 2.999 in. × 0.204 in.
5 Amps versionF-Z3AG-S53.033 in. × 3.071 in. × 0.197 in.
6.25 Amps versionF-Z3AG-S6D253.11 in. × 3.033 in. × 0.235 in.
Weight (Packaging)0.5 Amps versionF-Z3AG-S0D50.0226 lbs.
1 Amp versionF-Z3AG-S10.0223 lbs.
1.5 Amps versionF-Z3AG-S1D50.023 lbs.
2 Amps versionF-Z3AG-S20.0104 lbs.
2.5 Amps versionF-Z3AG-S2D50.0223 lbs.
3 Amps versionF-Z3AG-S30.0222 lbs.
4 Amps versionF-Z3AG-S40.0208 lbs.
5 Amps versionF-Z3AG-S50.0209 lbs.
6.25 Amps versionF-Z3AG-S6D250.0215 lbs.
Product Measurements by Item
F-Z3AG-S3 - 3 Amps versionCap Materialnickel-plated brass
Diameter0.25 in.
Interrupting Rating @ 125 VAC10,000 A
Interrupting Rating @ 250 VAC100 A
Item Length1.25 in.
Nominal Cold Resistance0.0593 Ω
Nominal Melting Point (I2t)200 A
Operating Temperature (TJ)-55ºC to 125ºC
Voltage Rating250 V
F-Z3AG-S2 - 2 Amps versionCap Materialnickel-plated brass
Diameter0.25 in.
Interrupting Rating @ 125 VAC10,000 A
Interrupting Rating @ 250 VAC100 A
Item Length1.25 in.
Nominal Cold Resistance0.1169 Ω
Nominal Melting Point (I2t)77.0 A
Operating Temperature (TJ)-55ºC to 125ºC
Voltage Rating250 V
F-Z3AG-S1 - 1 Amp versionCap Materialnickel-plated brass
Diameter0.25 in.
Interrupting Rating @ 125 VAC10,000 A
Interrupting Rating @ 250 VAC35 A
Item Length1.25 in.
Nominal Cold Resistance0.3750 Ω
Nominal Melting Point (I2t)14 A
Operating Temperature (TJ)-55ºC to 125ºC
Voltage Rating250 V
F-Z3AG-S4 - 4 Amps versionCap Materialnickel-plated brass
Diameter0.25 in.
Interrupting Rating @ 125 VAC10,000 A
Interrupting Rating @ 250 VAC200 A
Item Length1.25 in.
Nominal Cold Resistance0.0311 Ω
Nominal Melting Point (I2t)76.1 A
Operating Temperature (TJ)-55ºC to 125ºC
Voltage Rating250 V
F-Z3AG-S5 - 5 Amps versionCap Materialnickel-plated brass
Diameter0.25 in.
Interrupting Rating @ 125 VAC10,000 A
Interrupting Rating @ 250 VAC200 A
Item Length1.25 in.
Nominal Cold Resistance0.0214 Ω
Nominal Melting Point (I2t)276 A
Operating Temperature (TJ)-55ºC to 125ºC
Voltage Rating250 V
F-Z3AG-S6D25 - 6.25 Amps versionCap Materialnickel-plated brass
Diameter0.25 in.
Interrupting Rating @ 125 VAC10,000 A
Interrupting Rating @ 250 VAC200 A
Item Length1.25 in.
Nominal Cold Resistance0.0154 Ω
Nominal Melting Point (I2t)388 A
Operating Temperature (TJ)-55ºC to 125ºC
Voltage Rating250 V
F-Z3AG-S2D5 - 2.5 Amps versionCap Materialnickel-plated brass
Diameter0.25 in.
Interrupting Rating @ 125 VAC10,000 A
Interrupting Rating @ 250 VAC100 A
Item Length1.25 in.
Nominal Cold Resistance0.0811 Ω
Nominal Melting Point (I2t)199 A
Operating Temperature (TJ)-55ºC to 125ºC
Voltage Rating250 V
F-Z3AG-S0D5 - 0.5 Amps versionCap Materialnickel-plated brass
Diameter0.25 in.
Interrupting Rating @ 125 VAC10,000 A
Interrupting Rating @ 250 VAC35 A
Item Length1.25 in.
Nominal Cold Resistance1.26 Ω
Nominal Melting Point (I2t)2.55 A
Operating Temperature (TJ)-55ºC to 125ºC
Voltage Rating250 V
F-Z3AG-S1D5 - 1.5 Amps versionCap Materialnickel-plated brass
Diameter0.25 in.
Interrupting Rating @ 125 VAC10,000 A
Interrupting Rating @ 250 VAC100 A
Item Length1.25 in.
Nominal Cold Resistance0.1910 Ω
Nominal Melting Point (I2t)38.0 A
Operating Temperature (TJ)-55ºC to 125ºC
Voltage Rating250 V

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Specifications, Files, and Documents

PDF: Specification Sheet Specification Sheet164.43 KB

Questions and Answers

Click each question to see its answers.
Asked by Anonymous on November 18th, 2016.
Matt H.
November 18th, 2016
Staff Member
Hi these fuses are rated at 250 volts.
May 23rd, 2019
You are talking DC voltage NOT AC voltage. B+ is power supply transformer voltage in a tube amp. Not the input voltage. These are general fuses and can be used on anything as long as the amps and volts are correct for whatever application.
Asked by Anonymous on August 26th, 2016.
Matt H.
August 26th, 2016
Staff Member
Hi, all of our fuses come in a pack of 5.
Asked by Anonymous on February 10th, 2017.
BradWbr
November 20th, 2018
Staff Member
250V is the max voltage rating of these fuses. As long as the voltage is lower than 250V you can use these fuses.
Asked by Anonymous on October 23rd, 2018.
BradWbr
October 23rd, 2018
Staff Member
Yes, this is the correct size for that fuse holder.

Product Reviews

5.00 out of 5 based on 8 reviews
- September 13th, 2021
5 out of 5

These are quality Slo Blow Buss Fuses that protect your electronics when a problem comes along.

- July 13th, 2021
5 out of 5

I was just about to give up finding what I needed and remembered previously buying from AES. I went to their webpage and immediately found what I needed at a most reasonable price, for product and shipping. I received my purchase in record time. Thanks AES!!!

- June 16th, 2020
5 out of 5

I was tempted to say these fuses really blow. However, I'm totally amped about them.

- December 10th, 2019
5 out of 5

Worked perfectly for my radio restoration

- April 6th, 2019
5 out of 5

Fuse has been performing without incident.

- December 21st, 2014
5 out of 5

What can I say? Great fuses that seem to blow slowly! ;)

- November 9th, 2014
5 out of 5

Just right for the average guitar amplifier!

- August 5th, 2014
5 out of 5

Just what you need for vintage fender replacement.