NCE30P30G — 30V/30A P-Channel Power MOSFET (DFN5×6-8L)

What Are the Technical Specifications of NCE30P30G?

Key numbers that matter: per the NCE30P30G datasheet (v1.0), the 10V row is guaranteed at a -15A test current, and the 4.5V row — 15mΩ max at -10A — is a real guarantee, not a marketing line.

That puts it in the same 4.5V-drive class as the SOP-8 line (the 30P25S guarantees 14mΩ max at 4.5V). What the DFN adds is not drive — it is the heat path.

But the same table is what you must read twice: no I_D at 100°C, no t_rr, no E_AS number — only the feature line "100% UIS TESTED".

The 30P30K sibling publishes E_AS 169mJ; the 30P50G publishes 300mJ. This die's avalanche budget is not on paper, so treat unclamped events as unquantified and clamp them.

When Should You Use (and NOT Use) the NCE30P30G?

✅ Use NCE30P30G when:

• High-side switching where the continuous load is real, 8-15A, on a 12-18V rail. The DFN pad with 2oz copper and vias gives this die a case-to-board path the SOP-8 line cannot reach — R_θJC 1.56°C/W is the family's best number.
• 4.5V-drive designs. The guaranteed 15mΩ max at 4.5V/-10A makes 5V-logic drive defensible — same drive class as the 30P25S (14mΩ max), with a pad that conducts better.
• Load switches and PWM on battery rails up to 4S Li-ion (~16.8V). On-state V_GS stays inside the ±20V limit with real margin.
• Power-OR / input-switch positions that want a P-ch instead of a load-switch IC. At this current class the discrete P-ch + 2N3904 level-shift is still the cheaper BOM — when the switching speed is modest.
• Replacing an SOP-8 30P part on the same board when the layout can change. Same family, same drive logic, a pad that actually conducts heat.

❌ Don't use NCE30P30G when:

• Your rail is 24V and the gate is pulled to ground to turn on. On-state V_GS would be about -24V against a ±20V rating. Use a zener clamp (18V) between gate and source, or stay at or below ~18V rails.
• You need a guaranteed avalanche or inductive-spike budget. No E_AS value is published for this die. The 30P30K (169mJ) and 30P50G (300mJ) publish numbers; this one does not — clamp your flyback energy.
• 3.3V-logic direct drive. The -1.0 to -2.2V threshold conducts at 3.3V, but R_DS(on) is only guaranteed at 4.5V and 10V. Level-shift with an NPN or N-MOSFET — don't trust 3.3V for 15mΩ.
• Fast PWM from a plain pull-up resistor. 81.3nC against a 100kΩ pull-up switches in the low kilohertz at best. Push-pull or a driver IC for real PWM rates.
• Hand-soldering this part on a big copper pour. The very pad that cools it sinks your hot-air heat; DFN5×6 rework on large planes needs preheat or a hot plate (real forum-reported pain).

What Are the Alternatives to NCE30P30G?

The 30A decision in one line: the G is the bigger die with the better case thermal path; the K is the smaller die with the lighter gate.

Here's the thing to check before buying: your pad and your driver.

If the board has 2oz copper and a push-pull stage, the G's 10mΩ earns its 81.3nC.

If the gate comes from a weak source, or the board is 1oz with no vias, the K is the honest answer.

Above 20A continuous, an N-ch plus driver stops being optional.

What Are the Typical Applications of NCE30P30G?

High-current load switches on 2S-4S battery rails. The datasheet's own application list starts with battery and load switching. On 4S Li-ion (up to ~16.8V) the on-state V_GS stays inside ±20V, and the DFN pad handles the continuous current an SO-8 body cannot.

Power-OR and input-switch positions in 12-18V systems. Two P-ch parts back-to-back replace a load-switch IC below ~15A continuous, when switching speed is modest — the discrete BOM wins on cost and the 10mΩ on loss.

UPS and 24V-class PWM where the rail is clamped. P-ch high-side PWM in inverters and UPS modules is a listed application — with an 18V gate clamp and a driver, not a pull-up.

Board-level upgrades from the SOP-8 30P line. When a 30P25S board runs hot past ~10A continuous and the layout can change, the same family in DFN5×6 is the shortest engineering path — same drive logic, a pad that actually leaves.

Why Buy NCE30P30G from ICMASS?

Every lot batch-tested at the 10V drive point. We test R_DS(on) at 10V/-15A against the 10mΩ max and sample-test the 4.5V row — because the 4.5V guarantee is the reason most buyers pick this die over the SOP-8 line.

Family cross-reference support. G, K, or 50G? Send us rail voltage, continuous load, drive source and board copper — we'll tell you which die philosophy your design actually needs, including when the honest answer is an N-ch plus driver.

Pad and land-pattern verification on request. We verify the DFN5×6 pad map against the datasheet figure before we advise layouts, and confirm your lot's marking and R_DS(on) before volume orders.

Same-day dispatch, 5-10 days worldwide. Orders before 15:00 CST ship same day via DHL or FedEx. For volume, we source directly from the NCE factory line.

Frequently Asked Questions About NCE30P30G

Q1: What's the real difference between NCE30P30G and NCE30P30K?

A: Different dies with the same -30A sticker. The G (DFN5×6) runs 10mΩ max with 81.3nC; the K (TO-252) runs 18mΩ max with only 31.2nC. Lower resistance costs 2.6× the gate charge. Pick the G when the driver is strong and the pad is real copper; pick the K for lighter drive and a tab-soldered heat path.

Q2: Can I switch a 24V rail with a ±20V gate rating?

A: Only with a clamp. Turning on pulls the gate to ground, so V_GS reaches about -24V on a 24V rail — above the ±20V max. Add an 18V zener between gate and source, or keep the rail at or below ~18V. On 4S Li-ion (~16.8V) the margin is real and no clamp is needed.

Q3: Can a 3.3V MCU pin drive it directly?

A: It conducts, but nothing is guaranteed. The threshold band is -1.0 to -2.2V, so 3.3V turns the channel on — but R_DS(on) is only guaranteed at 4.5V and 10V. For a guaranteed 15mΩ, level-shift with an NPN or N-MOSFET and drive the gate from 4.5V or more.

Q4: Why does my high-side switch stay on when the MCU resets or is unpowered?

A: The gate is not at the source rail. A P-ch turns off only when V_GS is near zero — the pull-up must go to BAT+ (source), not to logic. During reset the gate holds its charge and the FET stays on; a 100kΩ pull-up to the source rail gives a defined off state. Beware a driver whose unpowered supply back-feeds through the pull-up — a real forum-reported failure mode.

Q5: What does the DFN pad need to carry 30A?

A: Copper, vias, and a grid stencil. The pad is the drain and the entire heat path. Use 2oz top copper under the pad, 0.2-0.3mm thermal vias at ~1mm pitch (filled or plugged to stop solder wicking), and a stencil grid of ~70-75% open area — a solid aperture raises voiding, and voids above ~35% can lift thermal resistance by 18-22%.

Q6: What's the real continuous current on a board?

A: Whatever your pad allows — and this datasheet publishes no 100°C current row and no R_θJA to lean on. The 80W rating is case-bound at R_θJC 1.56°C/W. On a good 2oz board with vias, honest continuous current lands far below the 30A sticker; on a skimpy pad it lands embarrassingly low. Measure with a thermocouple before production.

Q7: What about avalanche or inductive spikes?

A: This die publishes no E_AS number — clamp the energy. The datasheet claims 100% UIS testing but lists no avalanche value, unlike the 30P30K (169mJ) and 30P50G (300mJ) siblings. For unclamped inductive loads, add a clamp or snubber and treat the budget as unquantified.

Q8: What gate drive do I need for PWM?

A: Push-pull or a driver IC above a few kilohertz. Q_g is 81.3nC. A 100kΩ pull-up plus 81.3nC forms an RC switch that settles in the low kilohertz, sitting in the linear region meanwhile — that is how P-ch PWM boards burn. A push-pull stage or driver IC is the difference between switching and simmering.

Q9: How do I verify a genuine NCE30P30G?

A: Measure R_DS(on) at 10V/-15A and the threshold. A genuine part reads within 10mΩ max and V_GS(th) in the -1.0 to -2.2V band. Confirm the DFN5×6 footprint and marking too — a relabeled smaller die fails the milliohm check at the -15A test current.