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S&B Tech

Low-Profile Transformers

ASL621209

4 VA · UI30 · 2 × 115 V primary · 2 × 9 V secondary at 2 × 222 mA

In current catalogRequest a quoteDatasheet (PDF)
Photograph of an Aslan 4VA-UI30-7.5 UI30 transformer
4VA-UI30-7.5 as supplied — Standard (0). The winding printed on the label is one part number on this datasheet, not necessarily ASL621209.
Dimensioned drawing of the 4VA-UI30-7.5 transformer: outline, mounting height, and pin layout
Outline and pin layout — millimetres. Every part number on the 4VA-UI30-7.5 datasheet shares this footprint.

Specifications

Part number
ASL621209
Availability
Current catalog
Rated power
4 VA
Primary voltage
2 × 115 V
Secondary voltage
2 × 9 V
Secondary current
2 × 222 mA
No-load voltage
13.7 V
Core
UI30
Cover style
Standard (0)
Pin configuration
1-3 + 6-8 / 9-10 + 15-16
Mounting
PCB through-hole
Copper weight
50 g
Total weight
150 g
Certifications
EN 61558
Series
4VA-UI30-7.5

Insulation and impregnation are specified as air, oven-dried varnish, polyurethane coating, or epoxy potting, selected to the unit's environmental exposure and required creepage and clearance.

How this part is supplied

Aslan Elektronik builds to order and ships direct from the factory. S&B Tech is its exclusive North American representative, not a stocking distributor, so pricing comes back with the quote at your volume. Lead time is two weeks.

A secondary voltage, cover style, or footprint outside this table is a custom wind, which is normal business here rather than an exception.

Request a quoteRequest samples

Both arrive with ASL621209 attached. We reply within 48 hours.

Datasheet

Factory datasheet for the 4VA-UI30-7.5 series — dimensions, winding table, and pin layout for every part number on this page. PDF, opens in a new tab.

4VA-UI30-7.5.pdf

Download datasheet (PDF, opens in a new tab)

Parts this replaces

Catalog parts ASL621209 matches on winding topology, secondary voltage, current, and VA rating.

Obsolete parts ASL621209 can replace

6 parts no longer listed by DigiKey. If one of these is on your bill of materials, this is the winding that takes its place — built to order, so the quantity you need is the quantity we run.

Part numberManufacturerMatch
BV030-6938.0Pulse ElectronicsGrade A
BV030-7335.0Pulse ElectronicsGrade B
BV030-7347.0Pulse ElectronicsGrade B
BV030-7591.0Pulse ElectronicsGrade B
BV038-5213.0Pulse ElectronicsGrade B
BV038-5419.0Pulse ElectronicsGrade B

Currently listed parts with the same electricals

1 part still in the DigiKey catalog that ASL621209 matches on winding topology, voltage, and rating.

Part numberManufacturerMatch
F-166XPTriad MagneticsGrade B

How to read this table

Grade A:
Same winding topology, secondary voltage within 2%, and rated at or just above the part it replaces.
Grade B:
Meets the electrical specification but is oversized on current or VA, or splits the primary differently (single 230 V against dual 115 V).

Every match here is electrical. Pin spacing and body size were not compared, so check the footprint against the datasheet above before you commit to a substitution. Send us the incumbent part number and we will confirm the mechanical fit with the quote.

Cross-reference this partReplacing something else?

Other secondaries on this datasheet

Same UI30 core, same 4 VA rating, same footprint — only the secondary winding changes.

4VA-UI30-7.5 series

Next step

Quote ASL621209, or change it

Each route below arrives with this part number and Low-Profile Transformers already attached.

Quote or custom wind

Pricing at your volume for this part, or the same transformer with a different secondary, cover, or footprint.

Request a quote

Cross-reference

Replacing a Hammond, Triad, Signal, Tamura, Pulse, or Delevan part? Send the part number and we confirm the fit.

Cross-reference a part

Samples

Qualifying this part before you commit to a build? Samples are $50, shipping in about two weeks.

Request samples