Q4470-CLD Datasheet, PDF (1/2 Pages) Coilcraft lnc. – Miniature SMT Transformers

Document 606-1
Miniature SMT Transformers
These miniature transformers were developed for use with
Maxim RS-232/RS-485 interface ICs, and are suitable
for gate drive and other power applications. They were
designed to work with the MAX250, MAX251, MAX253
and MAX845 for providing power to the isolated side of
the interface, and are also specified by Linear Technology,
Sipex and others for use with their chipsets.
They feature 1500 Vrms isolation between windings in a
miniature surface mount package. Each transformer has
a stainless steel cover that provides an excellent surface
for automated placement.
In addition to the standard parts shown, Coilcraft can
produce custom transformers with voltage, inductance
and DCR values to meet your specific requirements. For
more information, contact Coilcraft.
Volt-time
Part
Pri / sec Inductance ^  product²
DCR max (Ohms)
  _number1 _voltage
min (µH) typ (Vµsec)
pri      sec
Q4470-CL_ 5 V to 5 V 400 (1-3)   32 (1-3) 0.950 (1-3)
1.25 (6-4)
S5394-CL_ 5 V to 10 V 400 (1-3)   32 (1-3) 0.950 (1-3)
0.950 (6-4)
U6982-CL_ 3.3 V to 5 V   59 (1-3)   22 (1-3) 0.700 (1-3)
1.800 (6-4)
T6437-DL_ 5 V to 5V 1000 (1-4) 134 (1-4) 1.010 (1-2, 3-4) 1.955 (8-5)
S5499-DL_ 5 V to 24 V 160 (1-4)   48 (1-4) 0.540 (1-2, 3-4) 4.28 (8-7, 6-5)
T6650-DL_ 5 V to 24 V 176 (2-3)   48 (2-3) 1.015 (2-3)
8.250 (7-6)
Isolation
pri-sec
(Vrms)
Pri / sec Pri : sec
capacitance Turns
  _{typ (pF)}3   _ratio4
  _Power5
(W) Size
1500 (1-4)
0.87 1 CT : 1.3 CT 0.25 C
1500 (1-4)
0.92
1 CT : 1
0.25 C
1500 (1-4)
0.93 1 CT : 2.1 CT 0.75 C
1500 (1,3-8)
1.88
1 CT : 1
1.5
D
1500 (1,3-8,6) 1.59 1 CT : 5 CT 1.0
D
1500 (2-7)
1.25
1:5
1.0
D
1. When ordering, please specify packaging code:
Q4470-CLD
Packaging: D = 13″ machine-ready reel. EIA-481 embossed plastic
tape (Size C: 1000 per full reel; Size D: 500 per full
reel).
B = Less than full reel. In tape, but not machine ready.
To have a leader and trailer added ($25 charge), use
code letter D instead.
2. Volt-time product is based on core area, number of primary turns and
4800 Gauss flux density.
3. Capacitance measured from full primary to full secondary at 200 kHz.
4. CT indicates center tap.
5. Calculated output power based on 150 kHz operating frequency.
Power varies depending on application.
6. Ambient temperature range: –40°C to +85°C
7. Storage temperature range: Component: –40°C to +85°C
Tape and reel packaging: –40°C to +80°C
8. Resistance to soldering heat: Three reflows at >217°C for 90 seconds
(+260°C ±5°C for 20 – 40 seconds), allowing parts to cool to room
temperature between.
9. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
        Chipset
Linear Linear Maxim Maxim
LT1952 LTC3900 250/251 253/845
 Q4470-CL 
 
  S5394-CL 
  U6982-CL 
 T6437-DL

  S5499-DL 
  T6650-DL 
Maxim
3535E


Sipex Sipex
SP3222 SP3232


Q4470-CL
1
6
U6982-CL
1
6
S5394-CL
1
6
Pri 2
5 Sec Pri 2
5 Sec Pri 2
Sec
3
4
3
4
3
4
T6437-DL
S5499-DL
T6650-DL
1
8
1
8
2
7
Pri
2
3
Sec
Pri
2
3
7
6
Sec
Pri
Sec
4
5
4
5
3
6
US [phone] [e-mail]
UK [phone] [e-mail]
Taiwan [phone] [e-mail]
China [phone] [e-mail]
Singapore + 65-6484 8412 [e-mail]
Document 606-1  Revised 05/06/09
© Coilcraft Inc. 2013
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.