DiodesZetex PWM Controller, 65 kHz 25 V 6-Pin, SOT-26

View all PWM
Bulk discount available

Subtotal 50 units (supplied on a continuous strip)*

£14.25

(exc. VAT)

£17.10

(inc. VAT)

Add to Basket
Select or type quantity
In Stock
  • Plus 2,775 unit(s) shipping from 20 April 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.

Units
Per unit
50 - 75£0.285
100 - 225£0.201
250 - 975£0.197
1000 +£0.131

*price indicative

Packaging Options:
RS Stock No.:
246-7431P
Mfr. Part No.:
AP31251W6-7
Brand:
DiodesZetex
Find similar products by selecting one or more attributes.
Select all

Brand

DiodesZetex

Product Type

PWM Controller

Maximum Switching Frequency

65kHz

Supply Current

0.7mA

Mount Type

Surface

Package Type

SOT-26

Minimum Supply Voltage

10V

Pin Count

6

Topology

Flyback

Maximum Supply Voltage

25V

Maximum Duty Cycle

80%

Minimum Operating Temperature

-40°C

Maximum Operating Temperature

85°C

Length

2.82mm

Series

AP31251

Standards/Approvals

RoHS

Height

1.45mm

Automotive Standard

AEC-Q200, AEC-Q100, AEC-Q101

The DiodesZetex AP31251 is a current mode PWM controller which is optimized for high performance, low standby power and cost effective offline fly back converters. The PWM switching frequency at normal operation is internally fixed (about 65kHz). In middle load, the IC will enter green mode to improve system efficiency with the help of frequency fold back. A minimum switching frequency (about 20kHz) is set to avoid the audible noise. In no load or light load, the IC will enter the burst mode to minimize standby power. Furthermore, the frequency dithering function is built-in to reduce EMI emission. It is available in SOT26 package.

Very low start-up current Non-audible-noise green-mode control Internal slope compensation Soft start during start-up process Frequency fold back for high average efficiency with many other features

Related links