Transphorm was a GaN (gallium nitride) power-semiconductor company based in Goleta, California, known for its GaN-on-Si cascode FET technology used in power supplies, fast chargers, motor drives, solar inverters, and EV charging. It was acquired by Renesas Electronics in June 2024, and transphormusa.com now redirects to the Renesas GaN power-discretes product line. Transphorm publishes no public web API surface.
Transphorm is profiled on the APIs.io network. Tagged areas include Company, Frontier Tech, Semiconductors, Gallium Nitride, and Power Electronics.
Regulatory Posture applies to this provider. Its tags matched the
Energy & Utilities regime, so
Regulatory Posture carries 15 points of the composite.
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Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for
this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero:
never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and
several others — scorable at all.
The six quality facets above are damped to 85 points between them,
because the conditional facet above carries the other
15. That is why each facet's contribution is shown against a damped
maximum: raising a quality facet moves the composite by 85% of its nominal
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aid: transphorm
deliveryModel:
model: unknown
open_source: false
commercial: false
callable_host: false
label: Delivery model not determined — needs a product licence on record
confidence: low
source:
- none
generated: '2026-08-28'
method: derived
accessModel:
pricing: unknown
onboarding: unknown
trial: false
try_now: false
public: false
label: Unknown
confidence: low
source:
- url: https://www.transphormusa.com
status: 301
note: declared website redirects to https://www.renesas.com/en/products/power-discretes/gan-power-discretes — a different
registrable domain (transphormusa.com -> renesas.com), possible rename or acquisition (probed 2026-09-03, roadmap#169)
generated: '2026-07-22'
method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/transphorm.png
name: Transphorm
description: Transphorm was a GaN (gallium nitride) power-semiconductor company based in Goleta, California, known for its
GaN-on-Si cascode FET technology used in power supplies, fast chargers, motor drives, solar inverters, and EV charging.
It was acquired by Renesas Electronics in June 2024, and transphormusa.com now redirects to the Renesas GaN power-discretes
product line. Transphorm publishes no public web API surface.
url: https://raw.githubusercontent.com/api-evangelist/transphorm/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- gv
- lux-capital
x-tier: stub
x-tier-reason: portfolio-lead
x-status: acquired
x-acquired-by: renesas
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Frontier Tech
- Semiconductors
- Gallium Nitride
- Power Electronics
- Hardware
- Renesas
apis: []
maintainers:
- FN: Kin Lane
email: kin@apievangelist.com
- FN: APIs.json
email: info@apis.io
common:
- type: Website
url: https://www.transphormusa.com
- type: DomainSecurity
url: security/transphorm-domain-security.yml
- type: LLMsTxt
url: llms/transphorm-llms.txt
x-enrichment:
date: '2026-07-21'
status: minimal
artifacts_added: 3
pass: local-v1
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