TEST CURRENT MAXIMUM ZENER IMPEDANCE

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1 1N5221B THRU 1N5278B SILICON ZENER DIODES 500mW, 2.4 THRU 170 VOLT 5% TOLERANCE DESCRIPTION: The CENTRAL SEMICONDUCTOR 1N5221B series silicon Zener diodes are highly reliable voltage regulators designed for use in industrial, commercial, entertainment and computer applications. RATINGS: (T L =75 C) SYMBOL UNITS Power Dissipation P D 500 mw Operating and Storage Junction Temperature T J, T stg -65 to +200 C V Z Tolerance: Part number with B suffix ±5 % V Z Tolerance: Part number with C suffix ±2 % V Z Tolerance: Part number with D suffix ±1 % ELECTRICAL CHARACTERISTICS: (T A =25 C) V F =1.1V I F =200mA (for all types) TYPE DO-35 CASE ZENER VOLTAGE V I ZT TEST ZENER IMPEDANCE REVERSE TEMPERATURE COEFFICIENT MIN NOM MAX I ZT Z I ZT Z I ZK I V R V Z V V V ma Ω Ω ma μa V %/ C 1N5221B N5222B N5223B N5224B N5225B N5226B N5227B N5228B N5229B ± N5230B ± N5231B ± N5232B N5233B N5234B N5235B N5236B N5237B N5238B N5239B N5240B N5241B N5242B N5243B N5244B N5245B N5246B R3 (11-September 2013)

2 1N5221B THRU 1N5278B SILICON ZENER DIODES 500mW, 2.4 THRU 170 VOLT 5% TOLERANCE ELECTRICAL CHARACTERISTICS - Continued: (T A =25 C) V F =1.1V I F =200mA (for all types) TYPE ZENER VOLTAGE V I ZT TEST ZENER IMPEDANCE REVERSE TEMPERATURE COEFFICIENT MIN NOM MAX I ZT Z I ZT Z I ZK I V R V Z V V V ma Ω Ω ma μa V %/ C 1N5247B N5248B N5249B N5250B N5251B N5252B N5253B N5254B N5255B N5256B N5257B N5258B N5259B N5260B N5261B N5262B N5263B N5264B N5265B N5266B N5267B N5268B N5269B N5270B N5271B N5272B N5273B N5274B N5275B N5276B N5277B N5278B DO-35 CASE - MECHANICAL OUTLINE C B A D D R3 (11-September 2013)

3 OUTSTANDING SUPPORT AND SUPERIOR SERVICES PRODUCT SUPPORT Central s operations team provides the highest level of support to insure product is delivered on-time. Supply management (Customer portals) Custom bar coding for shipments Inventory bonding Custom product packing Consolidated shipping options DESIGNER SUPPORT/SERVICES Central s applications engineering team is ready to discuss your design challenges. Just ask. Free quick ship samples (2 nd day air) Special wafer diffusions Online technical data and parametric search PbSn plating options SPICE models Package details Custom electrical curves Application notes Environmental regulation compliance Application and design sample kits Customer specific screening Custom product and package development Up-screening capabilities REQUESTING PRODUCT PLATING 1. If requesting Tin/Lead plated devices, add the suffix TIN/LEAD to the part number when ordering (example: 2N2222A TIN/LEAD). 2. If requesting Lead (Pb) Free plated devices, add the suffix PBFREE to the part number when ordering (example: 2N2222A PBFREE). CONTACT US Corporate Headquarters & Customer Support Team Central Semiconductor Corp. 145 Adams Avenue Hauppauge, NY USA Main Tel: (631) Main Fax: (631) Support Team Fax: (631) Worldwide Field Representatives: /wwreps Worldwide Distributors: /wwdistributors For the latest version of Central Semiconductor s LIMITATIONS AND DAMAGES DISCLAIMER, which is part of Central s Standard Terms and Conditions of sale, visit: /terms (001)

4 PDN /02/18 11/02/18 5/02/19 Summary:All high voltage 500mW Zener diodes in the DO-35 package are discontinued and now classified as End of Life (EOL). Although Central Semiconductor Corp. makes every effort to continue to produce devices that have been proclaimed EOL (End of Life) by other manufacturers, it is an accepted industry practice to discontinue certain devices when customer demand falls below a minimum level of sustainability. Accordingly, the following product(s) have been transitioned to End of Life status as part of Central's ongoing Product Management Process. Any replacement products are noted below. The effective date for placing last purchase orders will be six (6) months from the date of this notice and twelve (12) months from the notice date for final shipments, and minimum order quantities may apply. The last purchase and shipment dates may be extended if inventory is available. Central Part Number 1N5263B BK 1N5263B TR 1N5264B BK 1N5264B TR 1N5265B BK 1N5265B TR 1N5266B BK 1N5266B TR 1N5267B BK 1N5267B TR 1N5268B AP 1N5268B BK 1N5268B TR 1N5269B AP 1N5269B BK 1N5269B TR 1N5270B AP 1N5270B BK 1N5270B TR 1N5271B AP 1N5271B BK 1N5271B TR 1N5272B AP 1N5272B BK 1N5272B TR 1N5273B AP 1N5273B BK 1N5273B TR 1N5274 TR 1N5274B BK 1N5274B TR 1N5275B BK 1N5275B TR 1N5276B BK 1N5276B TR 1N5277B BK 1N5277B TR 1N5278B BK *** CONTINUED *** Replacement

5 PDN /02/18 11/02/18 5/02/19 *** CONTINUED FROM PRIOR PAGE *** Central Part Number 1N5278B TR 1N5279B BK 1N5279B TR 1N5280B BK 1N5280B TR 1N5281B BK 1N5281B TR Replacement Central would be happy to assist you by providing additional information or technical data to help locate an alternate source if we have no replacement available. Please your requests to