· Six-sided shielding 2:1/4:1 input ranges Telecom model (-048L models) feature thermal shutdown and overvoltage lockout to meet ETS 300 132-2 par. 4.6 Small size x 0.40" Meets EN55022A for conducted noise 5 year warranty Optional TTL enable feature

Input range........................... to 36 VDC; to 75 VDC; to 75 VDC Input capacitance................. 046L/048L Models 1.5uF typ 012L Models 2.7uF typ Input reflected ripple (P-P).... <5MA Input surge voltage.............. 100V for 100mS: 046L/048L models 50V for 100mS: 012L model Efficiency.............................. 83% typ No load input power............. 350mW typ

Operating ambient temperature range: to +80°C (no derating) Storage Temperature: to +105°C Baseplate: 105°C Max Humidity to 95% (Non-condensing) EMI RFI Shielding: Six sided MTBF: 398,000 hours (MIL HDBK-217) Bellcore >1.8 Mil hours. See notes.

Enable.................................. 5.5Vdc or open circuit off to 0.8Vdc Ref. to -Vin. TTL compatable

Voltage tolerance................. ±1% (main) (factory set-point) ±2% (aux) Line regulation..................... +0.5% max. Load regulation.................... +1.0% max. (10% load to FL) +1.0% max. aux. (10% load to FL) (load regulation (duals) assumes a balanced load) Noise/ripple.......................... 0.5% p-p typ (See Note 1) Short circuit protection......... Continuous Power Cycle Over voltage protection........ Zener clamp all outputs Transient response.............. 1.0 mS typical ; 50% step load change to within 1% Vout Temperature coefficient........ +0.02% °C max. Switching frequency............. 375kHz (fixed, typ)

I/O isolation........................... 1500 VDC Isolation resistance............... x 109 (ohms) Isolation capacitance............ 250pF (Max)

ASTEC ASIA 6F., China Dyeing Works Building 382-392 Castle Peak Road Tsuen Wan, N.T., Hong Kong Telephone: 852-2437-9662 Facsimile: 852-2402-4426

ASTEC EUROPE Astec House, Waterfront Business Park Merry Hill, Dudley West Midlands, 1LX, UK Telephone: 01384-842211 Facsimile: 01384-843355

Input Voltage 18-75V 36-75V Output 1 Voltage @ 0.300A Output 2 Voltage Maximum Power 7.5W 9W Model Number

*For remote enable option, add suffix "E" to the part number. For example: AA10B-048L-050SE= 48V in, 5V out with remote enable. Please contact Astec for information on other output voltages, power ranges and configurations.

Single Output +Vin (Case GND -48/-46 models) -Vin (Case GND -12 models) Output 1 No pin COMM Enable (E models only)

Dual Output +Vin (Case GND -48/-46 models) -Vin (Case GND -12 models) Output 1 Common Output 2 Enable (E models only)

1. 20 MHz bandwidth. An external 0.1 uf ceramic capacitor is recommended to be placed from +V out to comm. 2. Meets EN55022 Class A (-150S/D require 2.2uf input capacitor). Consult factory for filter recommendations to meet FCC class B, VDE or EIC specifications. 3. All specifications are typical at nominal line, full load, and 25°C unless otherwise noted. 4. All specifications subject to change without notice. 5. Mechanical drawings are for reference only. 6. Calculated per MIL HDBK 217F, Ground benign at 25°C, full load. BELLCORE calculated per TR-NWT-000332 method 1 parts count, Case 1.