DATA SHEET. 1N5225B to 1N5267B Voltage regulator diodes DISCRETE SEMICONDUCTORS Apr 26. Product specification Supersedes data of April 1992

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1 DISCRETE SEMICONDUCTORS DATA SHEET M3D176 Supersedes data of April Apr 26

2 FEATURES Total power dissipation: max. 500 mw Tolerance series: ±5% Working voltage range: nom. 3.0 to 75 V Non-repetitive peak reverse power dissipation: max. 40 W. APPLICATIONS Low-power voltage stabilizers or voltage references. DESCRIPTION Low-power voltage regulator diodes in hermetically sealed leaded glass SOD27 (DO-35) packages. The series consists of 43 types with nominal working voltages from 3.0 to 75 V. handbook, halfpage The diodes are type branded. k a MAM239 Fig.1 Simplified outline (SOD27; DO-35) and symbol. LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT I F continuous forward current 250 ma I ZSM non-repetitive peak reverse current t p = 100 µs; square wave; T j =25 C prior to surge P tot total power dissipation T amb =50 C; lead length max.; note 1 P ZSM non-repetitive peak reverse power dissipation Notes 1. Device mounted on a printed circuit-board without metallization pad. 2. Tie-point temperature 75 C. see Table Per type 400 mw Lead length 8 mm; note mw t p = 100 µs; square wave; T j =25 C prior to surge; see Fig.3 t p = 8.3 ms; square wave; T j 55 C prior to surge 40 W 10 W T stg storage temperature C T j junction temperature C ELECTRICAL CHARACTERISTICS Table 1 T j =25 C; unless otherwise specified. SYMBOL PARAMETER CONDITIONS MAX. UNIT V F forward voltage I F = 200 ma; see Fig V 1996 Apr 26 2

3 1996 Apr 26 3 Per type T j =25 C; unless otherwise specified. TYPE No. WORKING V Z (V) (1) DIFFERENTIAL RESISTANCE r dif (Ω) TEMP. COEFF. S Z (%/K) at I Z (2) TEST CURRENT I Ztest (ma) DIODE CAP. C d (pf) at f = 1 MHz; at V R =0V at REVERSE NON-REPETITIVE PEAK I ZSM (A) t p = 100 µs; T amb =25 C I R (µa) V R NOM. MAX. MAX. MAX. MAX. (V) MAX. 1N5225B N5226B N5227B N5228B N5229B ± N5230B ± N5231B ± N5232B N5233B N5234B N5235B N5236B N5237B N5238B N5239B N5240B N5241B N5242B N5243B N5244B N5245B N5246B N5247B N5248B N5249B N5250B Philips Semiconductors

4 1996 Apr 26 4 TYPE No. WORKING V Z (V) (1) DIFFERENTIAL RESISTANCE r dif (Ω) TEMP. COEFF. S Z (%/K) at I Z (2) TEST CURRENT I Ztest (ma) DIODE CAP. C d (pf) at f = 1 MHz; at V R =0V at REVERSE 1N5251B N5252B N5253B N5254B N5255B N5256B N5257B N5258B N5259B N5260B N5261B N5262B N5263B N5264B N5265B N5266B N5267B NON-REPETITIVE PEAK I ZSM (A) t p = 100 µs; T amb =25 C I R (µa) V R NOM. MAX. MAX. MAX. MAX. (V) MAX. Notes 1. V Z is measured with device at thermal equilibrium while held in clips at 10 mm from body in still air at 25 C. 2. For types 1N5225B to 1N5242B the I Z current is 7.5 ma; for 1N5243B and higher I Z =I Ztest. S Z values valid between 25 C and 125 C. Philips Semiconductors

5 THERMAL CHARACTERISTICS SYMBOL PARAMETER CONDITIONS VALUE UNIT R th j-tp thermal resistance from junction to tie-point lead length 10 mm 300 K/W R th j-a thermal resistance from junction to ambient lead length max.; see Fig.2 and note K/W Note 1. Device mounted on a printed circuit-board without metallization pad Apr 26 5

6 GRAPHICAL DATA 10 3 handbook, full pagewidth MBG930 R th j-a (K/W) 10 2 δ = t p T t p δ = T t p (ms) 10 5 Fig.2 Thermal resistance from junction to ambient as a function of pulse duration handbook, halfpage MBG handbook, halfpage MBG803 P ZSM (W) 10 2 I F (ma) (1) (2) duration (ms) V F (V) 1.0 (1) T j =25 C (prior to surge). (2) T j = 150 C (prior to surge). Fig.3 Maximum permissible non-repetitive peak reverse power dissipation versus duration. T j =25 C. Fig.4 Forward current as a function of forward voltage; typical values Apr 26 6

7 PACKAGE OUTLINE ndbook, full pagewidth 0.56 max 1.85 max 25.4 min 4.25 max 25.4 min MLA428-1 Dimensions in mm. Fig.5 SOD27 (DO-35). DEFINITIONS Data sheet status Objective specification This data sheet contains target or goal specifications for product development. Preliminary specification This data sheet contains preliminary data; supplementary data may be published later. This data sheet contains final product specifications. Limiting values Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability. Application information Where application information is given, it is advisory and does not form part of the specification. LIFE SUPPORT APPLICATIONS These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale Apr 26 7