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S&B Tech

PCB Mount Transformers

ASL180218BO

25 VA · EI60 · 230 V primary · 2 × 18 V secondary at 2 × 694 mA

In current catalogRequest a quoteDatasheet (PDF)
25VA-EI60-21-BO as supplied — BO.
Outline and pin layout — millimetres, 32.5 mm pin spacing. Every part number on the 25VA-EI60-21-BO datasheet shares this footprint.

Specifications

Part number
ASL180218BO
Availability
Current catalog
Rated power
25 VA
Primary voltage
230 V
Secondary voltage
2 × 18 V
Secondary current
2 × 694 mA
No-load voltage
21.4 V
Core
EI60
Cover style
BO
Pin spacing
32.5 mm
Pin configuration
1-7 / 8-9 + 13-14
Mounting
PCB through-hole
Copper weight
110 g
Total weight
570 g
Certifications
EN 61558
Series
25VA-EI60-21-BO

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 ASL180218BO attached. We reply within 48 hours.

Datasheet

Factory datasheet for the 25VA-EI60-21-BO series — dimensions, winding table, and pin layout for every part number on this page. PDF, opens in a new tab.

25VA-EI60-21-BO.pdf

Download datasheet (PDF, opens in a new tab)

Parts this replaces

Catalog parts ASL180218BO matches on winding topology, secondary voltage, current, and VA rating.

Obsolete parts ASL180218BO can replace

4 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
6025-036DelevanGrade B
6026-036DelevanGrade B
6446-036DelevanGrade B
BV054-5222.0Pulse ElectronicsGrade B

Currently listed parts with the same electricals

13 parts still in the DigiKey catalog that ASL180218BO matches on winding topology, voltage, and rating.

Part numberManufacturerMatch
162G36Hammond ManufacturingGrade B
162H36Hammond ManufacturingGrade B
183H36Hammond ManufacturingGrade B
14A-20-36Signal TransformerGrade B
DST-5-36Signal TransformerGrade B
DST-6-36Signal TransformerGrade B
3FD-536TamuraGrade B
PL20-36-130BTamuraGrade B
FS36-350Triad MagneticsGrade B
FS36-350-C2Triad MagneticsGrade B
FS36-550Triad MagneticsGrade B
FS36-550-C2Triad MagneticsGrade B
VPP36-560Triad MagneticsGrade B

How to read this table

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 EI60 core, same 25 VA rating, same footprint — only the secondary winding changes.

25VA-EI60-21-BO series

Next step

Quote ASL180218BO, or change it

Each route below arrives with this part number and PCB Mount 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