BD238 Medium Power Transistors Features: * Epitaxial Silicon Power Transistors. * Intended for Use in Medium Power Linear Switching Applications. TO-126 Plastic Package Dimensions Minimum Maximum A 7.4 7.8 B 10.5 10.8 C 2.4 2.7 D 0.7 0.9 E F 2.25 (Typical) 0.49 0.75 G 4.5 (Typical) L 15.7 (Typical) M 1.27 (Typical) N 3.75 (Typical) P S 3.0 3.2 2.5 (Typical) Dimensions : Millimetres Pin Configuration: 1. Emitter 2. Collector 3. Base Page 1 10/05/08 V1.1 BD238 Medium Power Transistors Absolute Maximum Ratings Description Symbol BD238 Collector-Base Voltage VCBO 100 Collector-Emitter Voltage VCEO 80 Collector Emitter Voltage (RBE = 1K) VCER 100 Emitter Base Voltage VEBO 5.0 IC 2.0 ICM 6.0 Collector Current Collector Peak Current Power Dissipation at TC = 25C Derate above 25C Unit V A 25 W 1.25 10 W mW/C Tj, Tstg -65 to +150 C Junction to Case Rth (j-c) 100 Junction to Ambient in Free Air Rth (j-a) 4.16 PD Power Dissipation at Ta = 25C Operating and Storage Junction Temperature Range Thermal Characteristics C/W Electrical Characteristics (TC = 25C unless specified otherwise) Description Symbol Test Condition Minimum Typical ICBO VCB = 100V, IE = 0 TC = 150C VCB = 100V, IE = 0 - - IEBO VEB = 5V, IC = 0 - Collector Emitter Sustaining Voltage *VCEO (sus) IC = 0.1A, IB = 0 Collector Emitter Saturation Voltage *VCEO (sat) Collector Cut off Current Emitter Cut off Current Base Emitter Voltage DC Current Gain Current Gain Bandwidth Product *hFE1/hFE2 Maximum Unit 100 A 2.0 mA - 1.0 mA 80 - - IC = 1.0A, IB = 0.1A - - 0.6 *VBE (on) IC = 1.0A, VCE = 2V - - 1.3 *hFE IC = 150mA, VCE = 2V IC = 1.0A, VCE = 2V 40 25 - - - fT IC = 250mA, VCE = 10V 3 - - MHz Matched Pairs IC = 250mA, VCE = 2V - 1.6 - - V *Pulse Test : Pulse Width = 300s, Duty Cycle = 1.5%. Page 2 10/05/08 V1.1 BD238 Medium Power Transistors Specifications IC Maximum (A) VCEO Maximum (V) hFE Minimum at IC = 1A Ptot at 25C (W) Package Type Part Number 2 80 25 26 TO-126 PNP BD238 Page 3 10/05/08 V1.1 BD238 Medium Power Transistors Notes: International Sales Offices: AUSTRALIA - Farnell FINLAND - Farnell ITALY - Farnell SPAIN - Farnell Tel No: Tel No: Tel No: Tel No: ++61 1300 361 005 ++ 358 9 560 7780 ++ 39 02 93 995 200 901 20 20 80 Fax No: ++61 1300 361 225 Fax No: ++ 358 9 345 5411 Fax No: ++ 39 02 93 995 300 Fax No: 901 20 20 90 AUSTRIA - Farnell FRANCE - Farnell SWEDEN - Farnell Tel No: Tel No: Fax No: ++ 43 662 2180 670 Fax No: ++ 33 474 68 99 90 MALAYSIA - Farnell-Newark Tel No: ++ 60 3 7873 8000 Fax No: ++ 60 3 7873 7000 BELGIUM - Farnell GERMANY - Farnell NETHERLANDS - Farnell SWITZERLAND - Farnell Tel No: Tel No: Tel No: ++ 43 662 2180 680 ++ 33 474 68 99 99 Tel No: ++ 46 8 730 50 00 Fax No: ++ 46 8 83 52 62 Fax No: ++ 32 3 227 3648 Fax No: ++ 49 89 613 59 01 Fax No: ++ 31 30 241 7333 Tel No: ++ 44 204 64 64 Fax No: ++ 44 204 64 54 BRAZIL - Farnell-Newark HONG KONG - NEW ZEALAND - Farnell UK - Farnell Tel No: Tel No: ++ 32 3 475 2810 ++ 49 89 61 39 39 39 ++ 31 30 241 7373 ++ 55 11 4066 9400 Farnell-Newark Tel No: ++ 852 2268 9888 Fax No: ++ 55 11 4066 9410 Fax No: ++ 852 2268 9899 Fax No: 0800 90 80 81 Fax No: ++ 44 8701 200 201 CHINA - Farnell-Newark HUNGARY - Farnell NORWAY - Farnell UK - CPC Tel No: Tel No: Tel No: 800 146 70 ++ 44 8701 202 530 Tel No: ++86 10 6238 5152 ++ 44 870 1200 208 0800 90 80 80 ++ 44 8701 200 200 Fax No: ++86 10 6238 5022 Fax No: ++ 44 870 1200 209 Fax No: 800 146 76 ++ 44 8701 202 531 CZECH REPUBLIC - Farnell INDIA - Farnell PORTUGAL - Farnell USA - Tel No: Tel No: Tel No: ++ 44 870 1200 208 ++ 44 870 1200 208 Fax No: ++ 44 870 1200 209 Fax No: ++ 44 870 1200 209 Fax No: ++ 34 93 474 5288 DENMARK - Farnell IRELAND - Farnell RUSSIA - Farnell Tel No: Tel No: Tel No: ++ 45 44 53 66 44 Fax No: ++ 45 44 53 66 06 ++ 353 1 830 9277 ++ 44 870 1200 208 Fax No: ++ 44 870 1200 209 Fax No: ++ 353 1 830 9016 Newark ++ 34 93 475 8804 Tel No: export 800 463 9275 EXPORT - Farnell Tel No: ++ 44 8701 200 208 Fax No: ++ 44 8701 200 209 For enquiries from all other markets ESTONIA - Farnell ISRAEL - Farnell Tel No: Tel No: ++ 358 9 560 7780 Fax No: ++ 358 9 345 5411 SINGAPORE - Farnell-Newark Tel No: ++ 65 6788 0200 ++ 180 937 0015 Fax No: ++ 180 937 0014 Fax No: ++ 65 6788 0300 http://www.farnell.com http://www.newark.com http://www.cpc.co.uk Disclaimer This data sheet and its contents (the "Information") belong to the Premier Farnell Group (the "Group") or are licensed to it. 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