Is there a pin-compatible replacement for VHF100505HQ2N7ST?

Yes, several 0402 inductors are pin-compatible. However, candidates like SDCL1005C2N7STDF have different electrical characteristics (higher DCR) and must be validated by an engineer.

What risks should I check before replacing VHF100505HQ2N7ST?

Key risks include changes in DC Resistance (DCR), which affects power efficiency and heat, and any deviation in inductance or self-resonant frequency (SRF) that can impact RF circuit performance.

VHF100505HQ2N7ST Alternatives, Datasheet & Cross Reference | Guangdong Fenghua Advanced Technology Holding Co., Ltd.

VHF100505HQ2N7ST is a 2.7nH high-frequency inductor in a 0402 package, rated for 300mA with a low DCR of 0.12Ω. Finding a substitute requires matching inductance and DCR closely.

AI replacement insight

Electrical riskmedium

Higher DCR in substitutes will increase I²R losses.

Package risklow

Candidates share the common 0402 package.

Can it be replaced directly?

No direct drop-in replacement has been identified. Available alternatives have higher DC Resistance, which is a significant parametric deviation requiring circuit analysis.

Best replacement path

Use a parametric search for a 2.7nH, 0402 inductor with DCR ≤ 0.12Ω and current ≥ 300mA. The Sunlord SDCL1005C series is a starting point but has higher DCR.

Main risk

The primary risk is increased DC Resistance (DCR) in alternatives, leading to higher power loss and potential thermal issues.

Recommended alternatives

A 2.7nH inductor in a 0402 package with tighter tolerance but significantly higher DCR. Requires review.

View details

Alternative comparison matrix

Feature / factor	VHF100505HQ2N7ST	SDCL1005C2N7BTDF	SDCL1005C2N7STDF	Compatibility / risk
Package	0402 (1005 Metric)	0402 (1005 Metric)	0402 (1005 Metric)	0402 (1005 Metric) — Form and fit match.; SDCL1005C2N7STDF: Form and fit match.
Inductance	2.7 nH	2.7 nH	2.7 nH	2.7 nH — Nominal inductance matches.; SDCL1005C2N7STDF: Nominal inductance matches.
Dcr	0.12 Ω	0.2 Ω	0.2 Ω	0.2 Ω — Significantly higher DCR may increase power loss.; SDCL1005C2N7STDF: Significantly higher DCR may increase power loss.
Tolerance	±0.3 nH	±0.2 nH	-	±0.2 nH — Tighter inductance tolerance.
Current	300 mA	300 mA	300 mA	300 mA — Rated current matches.; SDCL1005C2N7STDF: Rated current matches.
Temperature	-55°C to +125°C	-	-55°C to +125°C	-55°C to +125°C — Operating temperature range matches.

Application & sourcing insights

Questions & answers

Sunlord's SDCL1005C2N7STDF is a potential alternative with the same inductance and package, but has a higher DC Resistance (DCR) which requires engineering review.