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MPN Assignment Report

Scope and outcome

Status: completed. Assigned purchasable manufacturer part numbers to the 19 requested generic passives using in-place property edits only. Existing electrical values, package selections, schematic connectivity, PCB placement, and routing were preserved.

Requested targets: 19
Missing-MPN manufacturing errors before: 19
Missing-MPN manufacturing errors after: 0
Components replaced: 0
Values/packages changed: 0
PCB elements still placed after edit: 19 of 19
Change commits: 0f6445f9, ae94a90b

Assignments

Table

Designator(s)	Existing value / package	Assigned manufacturer and MPN	Added rating metadata	Engineering rationale
C52, C53, C56, C58, C59, C60	10 µF / 0805	Murata `GRM21BR61E106KA73L`	25 V, ±10%, ceramic	Exact value and footprint; 25 V rating gives substantial margin on the 5 V rail and improves effective-capacitance margin under DC bias. C56 is the TPS621351 input capacitor.
C64	4.7 µF / 0603	TDK `C1608X5R1C475K080AC`	16 V, ±10%, ceramic	Exact value and footprint with adequate margin on 5V_MAIN; used as the TPS62826 input capacitor. The TPS62826 typical application uses 4.7 µF input capacitance and a 470 nH inductor.
L1	470 nH / 1210	Murata `DFE322512F-R47M=P2`	±20%, 4.8 A thermal, 6.7 A saturation, shielded	Exact value and footprint for the TPS62826 1.1 V buck. TPS62826 operates at 2.2 MHz typical; its datasheet sizes peak inductor current as load current plus half ripple and recommends 20–30% saturation-current margin.
L2	1 µH / 1210	Murata `DFE322512F-1R0M=P2`	±20%, 3.8 A thermal, 4.8 A saturation, shielded	Exact value and footprint for the TPS621351 3.3 V buck. Estimated peak current at 5 V input, 3.3 V output, 3 A load, and 2.5 MHz is approximately 3.23 A, below both assigned current limits.
R3	300 kΩ / 0402	Yageo `RC0402FR-07300KL`	±1%, 63 mW	Exact value/package for MP5016 EN pull-up; negligible DC dissipation at 5 V.
R4	1.05 kΩ / 0402	Yageo `RC0402FR-071K05L`	±1%, 63 mW	Exact value/package for MP5016 current-limit programming.
R5	83.3 kΩ / 0402	Yageo `RC0402FR-0783K3L`	±1%, 63 mW	Exact precision value/package for the TPS62826 feedback divider.
R6	100 kΩ / 0402	Yageo `RC0402FR-07100KL`	±1%, 63 mW	Exact precision value/package for the TPS62826 feedback divider.
R7	560 kΩ / 0402	Yageo `RC0402FR-07560KL`	±1%, 63 mW	Exact precision value/package for the TPS621351 feedback divider.
R8	150 kΩ / 0402	Yageo `RC0402FR-07150KL`	±1%, 63 mW	Exact precision value/package for the TPS621351 feedback divider.
R13, R16	499 Ω / 0402	Yageo `RC0402FR-07499RL`	±1%, 63 mW	Exact value/package for strong-low FPGA configuration straps. Dissipation at 3.3 V is approximately 22 mW, below the part rating.
R25	0 Ω / axial 7.62 mm pitch	Yageo `CFR-25JR-52-0R`	250 mW, through-hole	Zero-ohm axial jumper with a 6.3 × 2.4 mm body compatible with the existing 7.62 mm-pitch footprint.
R64	59 kΩ / 0402	Yageo `RC0402FR-0759KL`	±1%, 63 mW	Exact value/package for TPS2121 ILM programming; preserves the intended approximately 1.95 A current limit.

Verification evidence

Schematic readback returned all 19 targets with their original capacitance, inductance, or resistance values and original packages.
BOM readback grouped every target under its newly assigned MPN; no requested target remains without an MPN.
The manufacturing missing-part-number review returned no matching open, warning, error, uncertain, or success entries after the update. The prior review contained 19 errors corresponding to this target set.
PCB scene-tree readback returned all 19 designators at existing board coordinates, confirming the property-only update did not remove or replace layout elements.
Connectivity readback showed the same surrounding nets; no wire or net mutation was performed.

Evidence limitation

TPS62826 regulator requirements above are backed by machine-resolved datasheet evidence. The passive-part PDF extractor could not serve machine-verifiable evidence for the Murata inductors and the two capacitor PDFs; their MPN, dimensions, values, and ratings were therefore cross-checked against manufacturer/distributor product data and BOM sourcing records, but that evidence is recorded as not machine-verified by the datasheet tool. No unresolved missing-MPN item remains in the requested scope.

Scope and outcome
Assignments
Verification evidence
Evidence limitation