A power inductor cross-reference for an Indonesian power bank or battery EMS buyer should start by counting names. Walsin’s WLPH, WLPH(HC), WQPH, WIP and WPA families list 134 rows but only 61 distinct electrical rows, and 12 of them are sold under four part numbers with identical export fields. Two WLPH lines are on our 23 September 2026 shelf.
Venatech Limited, an authorised Walsin distributor in Hong Kong, holds the Walsin Technology (Walsin) inductor parametric export: 5,411 rows, 5,410 real part numbers once a QA test row is removed. This post is for a procurement or design engineer at an Indonesian electronics manufacturer, for example one serving the new Batam projects, who wants Walsin power inductor candidates with every difference stated. Every Walsin part number below is real, every count is ours, and the one news fact is dated and sourced (fetched 2 November 2026).
What broke ground in Batam, and what does it mean for a components buyer?
On 28 October 2026 two US companies, Tynergy Technology Group and Essence Global, began a 500 million US dollar investment at the Wiraraja I Industrial Estate in Kabil, Batam, according to The Jakarta Post. The report says the project covers semiconductors, silica sand processing, sodium-ion battery assembly and an automated factory, on a 3-hectare site, with about 1,000 jobs projected.
It follows a joint venture agreement announced on 18 February 2026. An executive quoted in the report called the groundbreaking the “initial phase of the investment from the United States”. The report names no component supplier and no bill of materials, and we draw no conclusion about which parts any Batam factory will buy. We have no relationship with the companies or the newspaper.
| Point | What the source says | Source date | Match / mismatch |
|---|---|---|---|
| Location | Wiraraja I Industrial Estate, Kabil, Batam | The Jakarta Post, 28 October 2026 | Match for context only |
| Investment | 500 million US dollars, initial phase | The Jakarta Post, 28 October 2026 | Match for context only |
| Scope | Semiconductors, silica sand, sodium-ion battery assembly | The Jakarta Post, 28 October 2026 | Match for context only |
| Passive components or inductors | Not mentioned | The Jakarta Post, 28 October 2026 | Mismatch with any inductor claim |
How many Walsin power inductor rows are really the same part under several names?
We parsed all 134 rows of the WLPH (22), WLPH(HC) (19), WQPH (20), WIP (22), WIP_S (19), WIP_A (8), WIP_Y (4) and WPA (20) families. They collapse to 61 distinct electrical rows, and 12 of those carry four part numbers: WIP_S, WLPH(HC), WPA and WQPH. We grouped on size, thickness, inductance, tolerance, DC resistance and rated current, with currents and resistances normalised to amps and ohms.
Another 37 rows carry two part numbers (22 WIP and WLPH, 8 WPA and WQPH, 7 WIP_S and WLPH(HC)) and 12 are single, all in the WIP_A and WIP_Y families. So 49 of 61 electrical rows have a second or third name that a naive search of one family would miss. The 12 four-name rows run from 0.1 to 4.7 microhenries at 2016 and 0.33 to 2.2 microhenries at 2520, all 1.0 mm thick. We have not seen this counted anywhere.
| Microhenry, size and fields | Names for the one row | Shelf | Match / mismatch |
|---|---|---|---|
| 2.2, 2520 x 1.0 mm, 88 milliohm, 2.4 A | WLPH252010M2R2PS, WQPH252010M2R2PS, WIP252010S-2R2ML, WPA252010S-2R2ML |
No | Match on all export fields across four names |
| 2.2, 2016 x 1.0 mm, 117 milliohm, 2.2 A | WLPH201610M2R2PS, WQPH201610M2R2PS, WIP201610S-2R2ML, WPA201610S-2R2ML |
No | Match on all export fields; mismatch with the 2520 row on size and current |
| 2.2, 2520 x 1.2 mm, 85 milliohm, 2.27 A | WLPH252012M2R2PP, WIP252012P-2R2ML |
WLPH252012M2R2PP yes |
Mismatch with the 1.0 mm rows: 0.2 mm taller, 3 milliohm lower, 0.13 A lower |
| 4.7, 2520 x 1.2 mm, 196 milliohm, 1.61 A | WLPH252012M4R7PP, WIP252012P-4R7ML |
WLPH252012M4R7PP yes |
Match on both names; sized for lower current than the 2.2 row |
| 2.2, 3225 x 1.1 mm, 60 milliohm, 3 A | WIP322512A-2R2ML |
No | Mismatch: the only 2.2 microhenry row at 3225, and it has no twin |
Your incumbent part goes in a sixth column on your own copy; we do not name one.
What does the export not tell you about these inductors?
The export prints a rated current for all 134 rows but a saturation current for 0 of them, and 0 of our 28 datasheets cover an inductor. A power converter designer needs the saturation figure, so none of the 134 rows can be accepted on the export alone.
Across the whole inductor export only 146 of 5,410 rows publish a saturation current, and those are in other families (CSME, CSMEA and MIP-H). We hold no datasheet for the WLPH, WQPH, WIP or WPA families, so we cannot state a saturation point, a temperature rise, a temperature range or a packaging quantity. We do not guess. Ask Walsin for the family sheet and compare it with the incumbent’s. The only two lines we hold on the shelf are both 2520 by 1.2 mm in the WLPH family.
Why buyers in Indonesia choose Venatech
Buyers in Indonesia choose Venatech because we are an authorised Walsin Technology distributor working from Hong Kong, we supply small lots, and we show you every mismatch as well as the match. For this one inductor family we counted 134 rows down to 61 electrical rows and told you which 12 have four names. A buyer writing an approved vendor list can then name the electrical row, not just one of four part numbers.
The VenaMatch cross-reference tool decodes 18 manufacturers’ part numbers and covers 800,000+ crossable parts, with every difference from your original stated. The BOM page takes up to 500 part numbers. We tell you what we do not hold: we hold neither ISO 9001 nor IATF 16949, and we hold no inductor datasheets. Lot and date-code traceability and a certificate of conformity per shipment are available on request. A distributor that tells you where its documents stop is one you can plan around.
What will we not tell you about Indonesia?
Anything about Indonesian customs, certification or import rules, or about local content requirements. We hold no office, entity or stock in Indonesia; our locations are Hong Kong, Shenzhen, Singapore and Jiangmen, with Chengdu in preparation. We state no duty rate, transit time or conformity requirement and give no legal or customs advice; confirm with your compliance team. We also make no statement about any battery chemistry or any Batam company’s parts.
How Venatech helps
Paste the incumbent inductor number into the free cross-reference tool, which decodes 18 manufacturers’ part numbers across 800,000+ crossable parts and lists Walsin candidates with match and mismatch fields, or upload the list to the BOM checker, up to 500 part numbers. The Hong Kong ready-stock list is a dated snapshot, 23 September 2026, never live-synced; it holds 2 of the 134 rows above. Walsin is the only line we are authorised for; Stackpole and Viking are lines we supply. We work from Hong Kong, in small lots, and you can request a quote through the site. Worked example from our export: WLPH252010M2R2PS and WIP252010S-2R2ML agree on 2.2 microhenry, 88 milliohm and 2.4 A. Our post on rated current versus saturation current explains why the missing saturation figure matters, multilayer versus wirewound inductors covers the families, and the inductor range lists them. Qualification stays with you.
The short version
Count names before you count parts. Walsin’s WLPH, WQPH, WIP and WPA power inductor families are 61 electrical rows, not 134, and 12 of them carry four part numbers with identical export fields. Only two lines, both WLPH 2520 by 1.2 mm, are on the 23 September 2026 shelf, and no row publishes a saturation current. Confirm against the datasheet and qualify in your own converter.
Send us one power inductor line from your bill of materials and we will return the Walsin candidates with every difference stated. Does your approved vendor list name the electrical row or one of its four names?
Sources
Fetched 2 November 2026. The investment news comes from this page; the part data, counts and stock position come from our own Walsin exports and stock list.
- The Jakarta Post, “US firms break ground on 500m Batam semiconductor project”, 28 October 2026: https://www.thejakartapost.com/business/2026/10/28/us-firms-break-ground-on-500m-batam-semiconductor-project
Frequently asked questions
What was reported about Batam on 28 October 2026?
The Jakarta Post reported that two US companies began a 500 million US dollar investment at the Wiraraja I Industrial Estate in Kabil, Batam, covering semiconductors, silica sand, sodium-ion battery assembly and an automated factory. It names no component supplier.
How many Walsin power inductor rows are duplicates?
Of 134 rows in the WLPH, WLPH(HC), WQPH, WIP and WPA families, 61 are distinct electrical rows. Twelve carry four part numbers, 37 carry two, and 12 carry one, all in the WIP_A and WIP_Y families.
Do the four names for one row differ in any export field?
No. Size, thickness, inductance, tolerance, DC resistance and rated current agree across the four names after unit normalisation. The part-number prefix and suffix differ, and we hold no datasheet to say whether packaging, temperature range or saturation current differ.
Does the export give a saturation current for these inductors?
No. All 134 rows print a rated current and none prints a saturation current. Across the whole inductor export only 146 of 5,410 rows publish one, in other families. Ask Walsin for the family sheet before you accept any row.
Which of these inductors are on your shelf?
Two lines, both WLPH in 2520 by 1.2 mm: 2.2 and 4.7 microhenry. Each has a WIP twin that is not on the shelf. The snapshot is dated 23 September 2026 and is not live, so check the ready-stock page or ask for a quote.
Do you ship to Indonesia or state its import rules?
We ship from Hong Kong and state no duty, customs, certification or transit information for Indonesia. We hold no office or stock there and give no legal or customs advice; confirm with your compliance team. You can request a quote through the site.