Small and powerful enough battery?

[Dimitar63]

Hi all,
I work on something.. its alarm tag. I found buzzer which i want to use in simple electric circuit. Components are the buzzer, and a battery. The tag must work minimum 5 min. The problem is.. I can not find battery small and powerful enough at the same time. Battery diagonal must be 3 cm or less.
Electronic characteristics- Magnetic Buzzer PB-0927PQ

-Oscillation Frequency (Hz)-_______________2731
-Operating Voltage (Vp-p)-_________________4.5~ 5.5
-Rated Voltage (Vp-p)-_____________________5.0
-Current Consumption (mA/max.)-____________75 at Rated Voltage
-Sound Pressure Level (db/min)-______________85 at 10cm at Rated Voltage
-Coil Resistance (Ω)- _______________________25± 4
-Operating Temperature (°C)________________-20 / +70
-Storage Temperature (°C)_________________-30/ +80
-Condition by wave (°C)__________________260 ±5°C / within 5 sec
-condition by hand (°C)_________________350±20°C / within 5 sec

I hope someone knows the answer of my problems (battery, brand or i don't know..)
please help me.

 

[russ_watters]

I might be missing something, but you appear to be saying you need 75 ma for 5 min at 5V? That's only 6.3 mah. Slap 2 CR2032 lithium batteries together and you get 230 mah at 6V in a package only 20x7mm!

 

[Dimitar63]

I might be missing something, but you appear to be saying you need 75 ma for 5 min at 5V? That's only 6.3 mah. Slap 2 CR2032 lithium batteries together and you get 230 mah at 6V in a package only 20x7mm!

Thank you for your reply.
Do you think Renata 317 Skin 5.80x1.65mm /1.55V package of four can do the same work.

 

[russ_watters]

Thank you for your reply.
Do you think Renata 317 Skin 5.80x1.65mm /1.55V package of four can do the same work.

No; Google tells me they are only 10.5 mah.

 

[Dimitar63]

No; Google tells me they are only 10.5 mah.

How about adding small transistor. It might help right?

 

[PhysicoRaj]

How about adding small transistor. It might help right?

No, transistors do not increase the capacity of a battery.