B250S datasheet(2/2 Pages) DIOTEC

Part #	B250S

Description	"Slim" Profile Surface Mount Si-Bridge-Rectifiers

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Manufacturer	DIOTEC [Diotec Semiconductor]

Direct Link	http://www.diotec.com

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2 / 2 page

B40S ... B500S

Characteristics

Kennwerte

Max. average forward rectified current

Dauergrenzstrom

TA = 50°C

R-load

C-load

IFAV

1.0 A 1)

0.8 A 1)

Forward voltage – Durchlass-Spannung

Tj = 25°C

IF = 1 A

VF

< 1.1 V 2)

Leakage current – Sperrstrom

Tj = 25°C

VR = VRRM

IR

< 10 µA

Thermal resistance junction to ambient air

Wärmewiderstand Sperrschicht – umgebende Luft

RthA

< 40 K/W 1)

Type

Typ

Recomm. protective resistance

Empf. Schutzwiderstand

Rt [Ω] 3)

Admiss. load capacitor at Rt

Zul. Ladekondensator mit Rt

CL [µF] 4)

B40S

1.7

2900

0.005

B80S

3.5

1400

0.005

B125S

5.5

900

0.005

B250S

13.3

350

0.005

B380S

17.7

280

0.005

B500S

22.2

220

0.005

1

Mounted on P.C. Board with 13 x 13 mm2 copper pads at each terminal

Montage auf Leiterplatte mit 13 x 13 mm2 Kupferbelag (Lötpad) an jedem Anschluss

2

Per Diode – Pro Diode

3

Rt = VRRM / IFSM

Rt is the equivalent resistance of any protective element which ensures that IFSM is not exceeded

Rt ist der Ersatzwiderstand eines jeglichen Schutzelementes, welches ein Überschreiten von IFSM verhindert

4

CL = 5 ms / Rt

If the Rt CL time constant is less than a quarter of the 50Hz mains period, CL can be charged completely in a

single half wave of the mains. Hence, IFSM occurs as a single pulse only!

Falls die Rt CL Zeitkonstante kleiner ist als ¼ der 50Hz-Netzperiode, kann CL innerhalb einer einzigen

Netzhalbwelle komplett geladen werden. IFSM tritt dann nur als Einzelpuls auf!

2

http://www.diotec.com/

Rated forward current versus ambient temperature

Zul. Richtstrom in Abh. von der Umgebungstemp.

I

FAV

[%]

120

100

80

60

40

20

0

[°C]

T

A

150

100

50

0

R

t

3)

C

L

4)

~

+

_

10

1

10

2

-1

-2

[A]

I

F

Forward characteristics (typical values)

Durchlasskennlinien (typische Werte)

0.4

V

F

0.8

1.0

1.2

1.4

[V] 1.8

T = 25°C

j

T = 125°C

j

40a-(1a-1.1v)

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