DA204K-T147 - ROHM Electronics

DA221M/DA221/DA204U/DA204K/DA228U/DA228K/UMR12N

Diodes

1/4

Switching diode

DA221M / DA221 / DA204U / DA204K

DA228U / DA228K / UMR12N

zA pplications

Bias circuits

Protection circuits

zFeatures

1) Three types of packages are available.

(VMD3, EMD3, UMD3, SMD3)

2) T wo diode element s are connected in series

(VF × 2) per circuit.

zConstruction

Silicon epitaxial planar

zCircuit

DA221M / DA221 / DA204U /

DA204K / DA228U / DA228K UMR12N

D2

D1

(1)(2)(3)

(4) (5) (6)

zExternal dimensions (Unit : mm)

0.3

+0.1

0.15

±

0.05

0∼0.1

2.0±0.2

1.3±0.1

0.65 0.65

1.25

±

0.1

−0

0.9

±

0.1

0.7

±

0.1

0.2

2.1

±

0.1

0.2 0.2

0.5 0.5

1.0±0.1

1.6±0.2

0.3

0.8

±

0.1

1.6

±

0.2

−0.05

+0.1

−0.05

+0.1

−0.05 0.55±0.1

0.7

±

0.1

0.15

±

0.05

0∼0.1

0.1Min.

DA221

DA204U / DA228U

(All leads have the same dimensions)

EIAJ : SC-70

JEDEC : SOT-323

DA204K / DA228K

UMR12N

ROHM : EMD3

EIAJ : SC-75A

JEDEC : SOT-416

ROHM : UMD3 ROHM : SMD3

EIAJ : SC-59

JEDEC : SOT-346

ROHM : UMD6

EIAJ : SC-88

JEDEC : SOT-363

2.8

±

0.2

1.6

0.3

∼

0.6

0.15

0.4

0

∼

0.1

1.1

0.8

±

0.1

2.9

±

0.2

1.9

±

0.2

0.95 0.95

+

0.2

−

0.1

+

0.2

−

0.1

+

0.1

−

0.06

+

0.1

−

0.05

K

0.2

+0.1

0.15

±

0.05

0∼0.1

0.1Min.

2.0±0.2

1.3±0.1

0.65 0.65

1.25

±

0.1

−0.05

0.9

±

0.1

0.7

2.1

±

0.1

R12

0.8±0.1

0.5±0.05

0.13±0.05

0∼0.1

1.2±0.1

0.32±0.05

0.22±0.05

(1)

(2)

(3)

0.40.4

0.2±0.1 0.2±0.1

0.8±0.1

1.2±0.1

ROHM : VMD3

EIAJ :

JEDEC :

DA221M

(All leads have the same dimensions)

(1)(2)(3)

(4) (5) (6)

DA221M/DA221/DA204U/DA204K/DA228U/DA228K/UMR12N

Diodes

2/4

zMarking

UMD3

DA204U

DA228U

UMD6

UMR12N

−−

R12

SMD3

DA204K

DA228K

K

BU

K

BU

EMD3

DA221 K

−−

VMD3

DA221M K

−−

zA bsolute maximum ratings (Ta=25°C)

Type

V

RM

(

V) V

R

(V) I

FM

(mA) I

O

(mA)

I

surge

(

mA)

(1µs) (TOTAL)

Pd(mW) Tj(°C) Tstg(°C)

DA221 20 20 200 100 300 150 150 −55 to +150

DA221M 20 20 200 100 300 150 150 −55 to +150

DA204U 20 20 200 100 300 200 150 −55 to +150

DA228K 80 80 200 100 300 200 150 −55 to +150

UMR12N 80 80 200 100 300 200 150 −55 to +150

−55 to +150

DA228U 80 80 200 100 300 200 150

−55 to +150

DA204K 20 20 200 100 300 200 150

Peak

reverse

voltage

Peak

forward

current

Mean

rectifying

current

Surge

current Power

dissipation Junction

temperature Storage

temperature

DC

reverse

voltage

zElectrical characteristics (Ta=25°C)

Type

Forward voltage

VF(V)

Max. IR(µA)

Max.

Reverse current

Fig.

Cond. Cond.

IF(mA) VR(V)

DA221 1.0 10 0.1 15 1 to 4

DA221M 1.0 10 0.1 15 1 to 4

5 to 9UMR12N 1.2 100 0.1 80

DA204U 1.0 10 0.1 15 1 to 4

0.1DA228U 1.2 100 80 5 to 9

0.11.0 10 15DA204K 1 to 4

0.1DA228K 1.2 100 80 5 to 9

DA221M/DA221/DA204U/DA204K/DA228U/DA228K/UMR12N

Diodes

3/4

zElectrical characteristic curves (Ta=25°C)

(DA221, DA204U, DA204K) …Fig.1 to 4

0

Ta=125°C

D1 D1+D2

0.4 0.8 1.2 1.6 2.0 2.4

100

10

1

1.0

0.01

75°C

25°C

−

25

°C

125°C

75°C

25°C

−25°C

FORWARD CURRENT : I

F

(mA)

FORWARD VOLTAGE : V

F

(V)

Fig.1 Forward characteristics

0

Ta=125°C

0.4 0.8 1.2 1.6 2.0 2.4

100

10

1

1.0

0.01

D2

75°C

25°C

−25°C

FORWARD CURRENT : I

F

(mA)

FORWARD VOLTAGE : V

F

(V)

Fig.2 Forward characteristics

0

D2 125

°C

D1 100

°C

D2 100

°C

D1 75

°C

D2 75

°C

5 101520

0.01

0.1

1

10

100

D1 Ta=125

°C

REVERSE CURRENT : I

R

(nA)

REVERSE VOLTAGE : V

R

(V)

Fig.3 Reverse characteristics

0.5 12 51020

1

2

5

10

CAPACITANCE BETWEEN TERMINALS : CT (pF)

REVERSE VOLTAGE : V

R

(V)

Fig.4 Capacitance between

terminals characteristics

(D2)

(D1)

(D1+D2)

f=1MHz

DA221M/DA221/DA204U/DA204K/DA228U/DA228K/UMR12N

Diodes

4/4

(DA228U, DA228K, UMR12N) …Fig.5 to 9

0

1

10

100

500

0.5 1.0

Ta=125°C

75°C

25°C

−25°C

1.5

FORWARD CURRENT : IF (mA)

FORWARD VOLTAGE : VF (V)

Fig.5 Forward characteristics

D1

0

1

10

100

500

0.2 0.4 0.6 0.8 1.0

Ta=125°C

75°C

25°C

−25°C

1.2

FORWARD CURRENT : IF (mA)

FORWARD VOLTAGE : VF (V)

Fig.6 Forward characteristics

D2

0

Ta=125

°C

Ta=75

°C

Ta=25

°C

Ta=−25

°C

10

1

0.1

0.01

0.001

0.0001

25 50 75

REVERSE CURRENT : I

R

(nA)

REVERSE VOLTAGE : V

R

(V)

Fig.7 Reverse characteristics

D1

0

Ta=125

°C

Ta=75

°C

Ta=25

°C

Ta=−25

°C

10

1

0.1

0.01

0.001

0.0001

25 50 75

REVERSE CURRENT : I

R

(nA)

REVERSE VOLTAGE : V

R

(V)

Fig.8 Reverse characteristics

D2

0 2 4 6 8 10 12

1

10

CAPACITANCE BETWEEN TERMINALS : C

T

(pF)

REVERSE VOLTAGE : V

R

(V)

Fig.9 Capacitance between

terminals characteristics

D2

D1

f=1MHz

Appendix

Appendix1-Rev1.0

The products listed in this document are designed to be used with ordinary electronic equipment or devices

(such as audio visual equipment, office-automation equipment, communications devices, electrical

appliances and electronic toys).

Should you intend to use these products with equipment or devices which require an extremely high level of

reliability and the malfunction of with would directly endanger human life (such as medical instruments,

transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other

safety devices), please be sure to consult with our sales representative in advance.

Notes

No technical content pages of this document may be reproduced in any form or transmitted by any

means without prior permission of ROHM CO.,LTD.

The contents described herein are subject to change without notice. The specifications for the

product described in this document are for reference only. Upon actual use, therefore, please request

that specifications to be separately delivered.

Application circuit diagrams and circuit constants contained herein are shown as examples of standard

use and operation. Please pay careful attention to the peripheral conditions when designing circuits

and deciding upon circuit constants in the set.

Any data, including, but not limited to application circuit diagrams information, described herein

are intended only as illustrations of such devices and not as the specifications for such devices. ROHM

CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any

third party's intellectual property rights or other proprietary rights, and further, assumes no liability of

whatsoever nature in the event of any such infringement, or arising from or connected with or related

to the use of such devices.

Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or

otherwise dispose of the same, no express or implied right or license to practice or commercially

exploit any intellectual property rights or other proprietary rights owned or controlled by

ROHM CO., LTD. is granted to any such buyer.

Products listed in this document use silicon as a basic material.

Products listed in this document are no antiradiation design.

About Export Control Order in Japan

Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control

Order in Japan.

In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause)

on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction.