DA221M/DA221/DA204U/DA204K/DA228U/DA228K/UMR12N Diodes Switching diode DA221M / DA221 / DA204U / DA204K DA228U / DA228K / UMR12N zExternal dimensions (Unit : mm) DA221 1.2±0.1 0∼0.1 0.13±0.05 0.3 ROHM : EMD3 EIAJ : SC-75A JEDEC : SOT-416 DA204K / DA228K 1.25±0.1 zCircuit UMR12N 0.9±0.1 2.9±0.2 1.9±0.2 0.2 0.7±0.1 0.95 0.95 2.1±0.1 0.65 0.65 0∼0.1 0.15±0.05 +0.1 0.3 −0 0∼0.1 +0.1 0.15 −0.06 (All leads have the same dimensions) D1 ROHM : SMD3 EIAJ : SC-59 JEDEC : SOT-346 ROHM : UMD3 EIAJ : SC-70 JEDEC : SOT-323 D2 UMR12N 2.0±0.2 1.3±0.1 0.9±0.1 0.65 0.65 (3) (2) (4) (5) 0.7 (1) 0.1Min. 2.1±0.1 (6) 1.25±0.1 (5) R12 D1 (4) 0.8±0.1 (1) D2 D1 1.1 +−0.2 0.1 0.4 +−0.1 0.05 (All leads have the same dimensions) D2 0.15±0.05 0.1 1.3±0.1 (2) +0.1 −0.05 0∼0.1 (All leads have the same dimensions) ROHM : VMD3 EIAJ : JEDEC : DA204U / DA228U (3) 0.55±0.1 (All leads have the same dimensions) 2.0±0.2 DA221M / DA221 / DA204U / DA204K / DA228U / DA228K 0.7±0.1 0.2 +0.1 −0.05 0.1Min. (3) 0.32±0.05 0.5 0.5 0.3∼0.6 zConstruction Silicon epitaxial planar (1) 2.8±0.2 zFeatures 1) Three types of packages are available. (VMD3, EMD3, UMD3, SMD3) 2) Two diode elements are connected in series (VF × 2) per circuit. (2) 0.2 +0.1 −0.05 0.8±0.1 0.22±0.05 1.6±0.2 1.0±0.1 0.5±0.05 1.6±0.2 0.40.4 K 0.8±0.1 0.2±0.1 0.8±0.1 0.2±0.1 1.2±0.1 DA221M 1.6 +−0.2 0.1 zApplications Bias circuits Protection circuits 0∼0.1 (6) +0.1 0.2 −0.05 0.15±0.05 (All leads have the same dimensions) ROHM : UMD6 EIAJ : SC-88 JEDEC : SOT-363 1/4 DA221M/DA221/DA204U/DA204K/DA228U/DA228K/UMR12N Diodes zMarking UMD3 EMD3 VMD3 UMD6 SMD3 DA221M K DA221 K DA204U K UMR12N R12 DA204K K − − − − DA228U BU − − DA228K BU zAbsolute maximum ratings (Ta=25°C) Type Peak reverse voltage VRM(V) DC reverse voltage VR(V) Peak forward current IFM(mA) Mean rectifying current IO(mA) Surge Power Junction current dissipation temperature (TOTAL) (1µs) Isurge(mA) Pd(mW) Tj(°C) Storage temperature Tstg(°C) DA221M 20 20 200 100 300 150 150 −55 to +150 DA221 20 20 200 100 300 150 150 −55 to +150 DA204U 20 20 200 100 300 200 150 −55 to +150 DA228U 80 80 200 100 300 200 150 −55 to +150 DA204K 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 zElectrical characteristics (Ta=25°C) Forward voltage Type DA221M VF(V) Max. Cond. 1.0 10 IF(mA) Reverse current IR(µA) Max. 0.1 Cond. Fig. VR(V) 15 1 to 4 DA221 1.0 10 0.1 15 1 to 4 DA204U 1.0 10 0.1 15 1 to 4 DA228U 1.2 100 0.1 80 5 to 9 DA204K 1.0 10 0.1 15 1 to 4 DA228K 1.2 100 0.1 80 5 to 9 UMR12N 1.2 100 0.1 80 5 to 9 2/4 DA221M/DA221/DA204U/DA204K/DA228U/DA228K/UMR12N Diodes zElectrical characteristic curves (Ta=25°C) (DA221, DA204U, DA204K) …Fig.1 to 4 100 100 100 0.4 −25°C 25°C C 0.8 75°C 125° 75°C 0.01 0 25°C 1.0 −25°C 1 1.2 1.6 2.0 2.4 10 Ta=125°C 75°C 25°C 1 −25°C 1.0 0.01 0 0.4 0.8 1.2 1.6 2.0 FORWARD VOLTAGE : VF (V) FORWARD VOLTAGE : VF (V) Fig.1 Forward characteristics CAPACITANCE BETWEEN TERMINALS : CT (pF) REVERSE CURRENT : IR (nA) FORWARD CURRENT : IF (mA) D1+D2 D1 10 Ta=125° C FORWARD CURRENT : IF (mA) D2 Fig.2 Forward characteristics 2.4 D1 Ta=125°C 10 D2 125°C D1 100°C 1 D2 100°C D1 75°C D2 75°C 0.1 0.01 0 5 10 15 20 REVERSE VOLTAGE : VR (V) Fig.3 Reverse characteristics 10 f=1MHz (D2) 5 (D1) 2 1 (D1+D2) 0.5 1 2 5 10 20 REVERSE VOLTAGE : VR (V) Fig.4 Capacitance between terminals characteristics 3/4 DA221M/DA221/DA204U/DA204K/DA228U/DA228K/UMR12N Diodes (DA228U, DA228K, UMR12N) …Fig.5 to 9 500 Ta=125°C 75°C 25°C −25°C 100 10 1 0 0.5 1.0 100 Ta=125°C 75°C 25°C −25°C 10 FORWARD VOLTAGE : VF (V) Ta=125°C 0.1 Ta=75°C 0.01 Ta=25°C 0.001 Ta=−25°C 25 50 Fig.8 Reverse characteristics 75 CAPACITANCE BETWEEN TERMINALS : CT (pF) REVERSE CURRENT : IR (nA) D2 REVERSE VOLTAGE : VR (V) 0.4 0.6 0.8 1.0 1.2 1 Ta=75°C 0.1 Ta=25°C 0.01 Ta=−25°C 0.001 0.0001 0 25 50 75 REVERSE VOLTAGE : VR (V) Fig.7 Reverse characteristics Fig.6 Forward characteristics 1 0.0001 0 0.2 FORWARD VOLTAGE : VF (V) Fig.5 Forward characteristics 10 D1 Ta=125°C 1 0 1.5 10 D2 REVERSE CURRENT : IR (nA) D1 FORWARD CURRENT : IF (mA) FORWARD CURRENT : IF (mA) 500 10 f=1MHz D1 D2 1 0 2 4 6 8 10 12 REVERSE VOLTAGE : VR (V) Fig.9 Capacitance between terminals characteristics 4/4 Appendix 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. 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. 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. Appendix1-Rev1.0