What industrial or embedded applications can the RSP-100-3.3 serve?

The RSP-100-3.3 provides 3.3V at 20A (66W) which is typical for FPGA boards, microcontroller development platforms, and embedded logic circuitry that operates on a 3.3V rail. The 85–264VAC input allows operation on any standard AC supply without modification.

Why is the RSP-100-3.3 rated at 66W rather than ~100W like other RSP-100 variants?

The RSP-100-3.3 is constrained by the maximum output current (20A) the platform can deliver at 3.3V, which results in 66W (3.3V × 20A). This is a design characteristic of the 3.3V variant within the RSP-100 platform; the 12V, 24V, and 48V variants achieve closer to 100W because their higher voltages allow less current at equivalent power.

How does the RSP-100-3.3 compare to the RSP-150-3.3?

The RSP-100-3.3 delivers 3.3V at 20A (66W) in a 179.0 × 99.0 × 30.0 mm chassis. The RSP-150-3.3 delivers 3.3V at 30A (99W) in a slightly larger 199.0 × 99.0 × 30.0 mm chassis. If the load requires more than 20A at 3.3V, the RSP-150-3.3 is the next step up within this product line.

Does the RSP-100-3.3 support operation in environments down to -30°C?

Yes. The RSP-100-3.3 is rated for -30°C to +70°C ambient, allowing reliable cold-start and sustained operation in low-temperature environments. It should be enclosed to prevent moisture and dust exposure as the unit has no IP rating.

What certifications does the RSP-100-3.3 hold?

The RSP-100-3.3 is certified under BSMI, CB, CCC, CE, EAC, TÜV, and UL, covering Taiwan, China, Europe, North America, and the Eurasian Economic Union.

Image shown is a representation only. Exact specifications should be obtained from the product datasheet.

Mean Well

Mean Well RSP-100-3.3 Power Supply 66W 3.3V 20A

1U low profile with active PFChigh efficiency

SKU RSP-100-3.3

Log in to see price Trade pricing & online ordering for account holders

Select model — 6 in this family

RSP-100-3.3

RSP-75-3.3 75W 3.3V Backorder

RSP-100-3.3 100W 3.3V Backorder

RSP-150-3.3 150W 3.3V Backorder

RSP-200-3.3 200W 3.3V Backorder

RSP-320-3.3 320W 3.3V Backorder

RSP-500-3.3 500W 3.3V Backorder

Product variants

Notify me when it's back in stock

EN55022(CISPR22) Class B,EN61000-3-2,-3, GB9254 class B,EN61000-4-2,3,4,5,6,8,11,EN55024

Key Features

✓Universal AC input / Full range
✓Built-in active PFC function
✓Built-in constant current limiting circuit
✓Protections:Short circuit/ Overload / Over voltage / Over temperature
✓Cooling by free air convection
✓1U low profile 30mm
✓Remote ON-OFF control
✓LED indicator for power on
✓100% full load burn-in test
✓3 years warranty

Payment & Security

Payment methods

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Please log in to write a review.

{ "id":8343928111403, "variants" :[{ "context":"default", "variant_id": 45321325936939, "sku":"RSP-100-3.3", "inventory_qty" : 0, "customer" :false, "custom_html" :"\u003ca class=\"text-current logged-out-price logged-out\" href=\"https:\/\/wellforces.co.nz\/customer_authentication\/redirect?locale=en\u0026region_country=NZ\"\u003e\n \u003cspan \u003ePlease \u003c\/span\u003e \u003cspan class=\"login-text\"\u003eLogin\u003c\/span\u003e \u003cspan\u003e for Pricing\u003c\/span\u003e\n \u003c\/a\u003e", "volume_html" :"\u003cvolume-pricing class=\"parent-display inside_product_form\" id=\"volume-pricing-main\" \u003e\u003c\/volume-pricing\u003e" } ] }

Key Features

✓Universal AC input / Full range

✓Built-in active PFC function

✓Built-in constant current limiting circuit

✓Protections:Short circuit/ Overload / Over voltage / Over temperature

✓Cooling by free air convection

✓1U low profile 30mm

✓Remote ON-OFF control

✓LED indicator for power on

✓100% full load burn-in test

✓3 years warranty

Mean Well RSP-100-3.3 Power Supply 66W 3.3V 20A

Select model — 6 in this family

Key Features

Frequently Asked Questions

Payment & Security

Write a review

Your cart

Mean Well RSP-100-3.3 Power Supply 66W 3.3V 20A

Key Features

Company Information

Services and Support

Choose options