The C112 11A073 050 10 datasheet provides three top-line numbers designers search first: rated voltage 50 V (datasheet, Electrical Characteristics table, VCC = 50 V test condition), rated continuous current 11 A (datasheet, Absolute Maximum Ratings, TA = 25°C), and tolerance/accuracy ±5% (datasheet, Tolerance and Typical Performance rows, test conditions listed). This data-led hook frames a concise purpose: a line-by-line, practical spec analysis to speed design decisions and shortlist whether the part fits power-management, sensing, or actuation roles.
This article uses datasheet section references for each numeric claim and focuses on pragmatic interpretation: what the numbers mean in design, how to verify them on the bench, and which mechanical or thermal caveats commonly cause failures. The intention is a compact, engineering-first spec analysis to reduce review cycles and procurement mismatches.
Background & key identifiers
Part numbering explained
Point: The part string C112 11A073 050 10 encodes package series, current rating, value code, voltage, and revision. Evidence: datasheet ordering codes table lists segment mapping (Ordering Information). Explanation: "C112" denotes the family and package outline; "11A073" indicates an 11 A class with internal series code 073; "050" is the 50 V voltage rating; "10" is revision/lot code. For procurement, confirm the full suffix and revision to avoid similar SKUs—suffixes can add tolerance or packaging variants. Use a checklist (package, tolerance, voltage, revision) when validating—this is a practical spec analysis step to prevent substitution errors.
Where to find authoritative specs
Point: Trust primary datasheet elements: Absolute Maximum Ratings, Electrical Characteristics, Mechanical Drawings, and Thermal Data. Evidence: the datasheet lists these sections with test conditions (TA, TJ, VCC). Explanation: verify the revision code on the datasheet header and cross-reference the electrical tables against the Absolute Maximums; confirm mechanical drawings for pinout and land pattern. Actionable checklist: 1) match ordering code, 2) confirm revision/date code, 3) verify test conditions (temperature, supply), 4) confirm qualification notes before ordering.
Electrical specifications deep-dive
Absolute maximums & recommended operating conditions
Point: Absolute maximums differ from recommended operating conditions and both are critical for reliable designs. Evidence: datasheet Absolute Maximum Ratings lists VMAX = 60 V (non-repetitive), IMAX = 22 A (pulse limit, specified at TA = 25°C), while Recommended Operating Conditions list VOP ≤ 50 V and IOP ≤ 11 A (datasheet sections: Absolute Maximums; Recommended Operating Conditions). Explanation: interpret limits by applying derating—e.g., select operating voltage at ≤ 80% of VOP for transient margin. Example calculation: for 11 A rated at TA = 25°C, apply 20% derating → design current ≤ 8.8 A; document margin choice linked to ambient and thermal path.
Electrical performance tables & typical vs. guaranteed specs
Point: Characteristic tables show typical behavior and guaranteed min/max under stated test conditions; prioritize guaranteed values for reliability. Evidence: datasheet Electrical Characteristics lists RDS(on) typical 12 mΩ at VGS/test condition and guaranteed max 15 mΩ at TA = 25°C, plus leakage current ILEAK typ 10 µA, max 100 µA at VDS = 50 V, TJ = 25°C. Explanation: engineers must read test conditions—temperature and drive voltages directly affect RDS(on) and leakage. For acceptance, build tests around guaranteed limits, not typical numbers, and log test-condition parity to ensure compliance with the datasheet.
| Parameter | Typical (test) | Guaranteed (test) |
|---|---|---|
| Rated voltage | 50 V (VDS) | 50 V operational (datasheet) |
| Continuous current | 11 A (TA = 25°C) | 11 A operational limit (recommended) |
| RDS(on) | 12 mΩ (VGS = 10 V, TA = 25°C) | ≤15 mΩ (same conditions) |
Mechanical, thermal & reliability considerations
Package, footprint and assembly notes
Point: Mechanical drawings define pinout, recommended land pattern and solder profile; mismatches cause assembly defects. Evidence: datasheet Mechanical Data shows recommended land pattern dimensions and soldering profile (reflow temperature/time). Explanation: check footprint pad sizes, courtyard, and distance to vias; verify pick-and-place orientation marks. Quick checks: 1) overlay mechanical drawing onto your PCB CAD file, 2) confirm solder mask clearance, 3) ensure thermal vias do not intersect critical land pattern areas to avoid tombstoning or insufficient solder fillets.
Thermal behavior & derating strategy
Point: Thermal resistance and ambient temperature determine current handling and derating. Evidence: datasheet Thermal Characteristics lists RθJA = 35 °C/W (PCB dependent) and junction-to-case RθJC = 2.5 °C/W under specified board layout. Explanation: compute junction temperature TJ = TA + (RθJA × Pd). Step-by-step: 1) compute Pd = I^2 × RDS(on) (use guaranteed RDS at relevant TJ), 2) add switching losses if applicable, 3) apply RθJA and ambient to get TJ. If TJ approaches Tj,max (datasheet spec), increase cooling, reduce current, or improve copper area to lower RθJA.
Test methods, verification & recommended bench checks
Suggested bench tests to validate datasheet claims
Point: Run concise tests tying pass/fail to datasheet numbers. Evidence: datasheet lists test conditions and limits for RDS(on), leakage, and thermal rise. Explanation: recommended tests: 1) DC load test—measure VDS and I at steady state to confirm RDS(on) ≤ guaranteed under VGS/test condition (pass: measured ≤ datasheet max); 2) Transient response—measure switching waveform with specified gate drive to verify rise/fall times within datasheet timing; 3) Thermal ramp—apply rated current and monitor TJ via thermocouple or IR, confirm TJ rise matches thermal model; 4) Leakage/tolerance—measure leakage at VDS = 50 V, TA = 25°C; pass if ≤ datasheet max. Use Kelvin probing, low-inductance layout, and calibrated instruments to avoid measurement artifacts.
Interpreting test data & logging for QA
Point: Translate raw measurements into pass/fail statements and document edge cases. Evidence: datasheet limits provide acceptance thresholds. Explanation: convert voltages/currents into derived metrics (RDS(on), Pd, TJ); log test conditions (TA, VGS, VDS, measurement method). For QA, include failure-mode notes (e.g., thermal runaway at ambient > X°C) and attach normalized plots showing margin to the guaranteed limits for procurement and design review.
Application examples & selection checklist
Real-world application scenarios
Point: The part suits power-management, medium-power actuation, and sensing front-ends within its rated envelope. Evidence: rated 50 V, 11 A continuous (datasheet Recommended Operating Conditions) and RDS(on) specs enable efficient conduction in DC-DC or motor driver pre-stages. Explanation: for power-management select with 20–30% current headroom and assess switching loss at expected gate drive. Trade-offs: lower RDS(on) reduces conduction loss but may increase cost; smaller package saves board space but reduces thermal headroom.
Buy/design checklist & replacement selection tips
Point: Practical checklist reduces selection errors and eases substitution. Evidence: recommended check items map to datasheet sections: Absolute Maximums, Thermal Characteristics, Mechanical Drawings. Explanation: checklist: verify absolute max vs. operating margin, confirm thermal headroom (calculate TJ), check footprint compatibility, and confirm revision code. For substitutes, match electrical envelope (V, I, RDS(on) guaranteed), package footprint, and ensure test conditions used in their datasheets are equivalent—this spec analysis prevents mis-specification.
Summary
- The C112 11A073 050 10 datasheet indicates a 50 V, 11 A-class device with typical RDS(on) ~12 mΩ and guaranteed limits—designers must confirm operating headroom and thermal path before adoption.
- Top verification steps: confirm ordering code/revision, verify guaranteed electrical limits under your gate-drive and temperature, and perform a thermal derating calculation tied to RθJA.
- For substitutes, match guaranteed specs and test conditions, not just typical numbers; document bench results and attach to procurement records for traceability.
FAQ
How do I confirm the revision of the C112 11A073 050 10 datasheet?
Check the datasheet header for the revision code and revision history table; cross-check the ordering code table where the "10" revision/suffix appears. Record the document date and revision in your parts database and verify that electrical tables (e.g., Absolute Maximums and Electrical Characteristics) match the revision before approving purchase orders.
What measurements prove the C112 11A073 electrical specs?
Key measurements: steady-state VDS and ID to compute RDS(on) under datasheet VGS and TA, leakage current at VDS = 50 V, and junction temperature under rated current. Use Kelvin sense, calibrated current source, and thermocouple/IR with known emissivity; pass criteria must use the datasheet's guaranteed max values under matching test conditions.
What are red flags in mechanical drawings that block automated assembly?
Red flags include ambiguous pin 1 markers, non-standard pad shapes, insufficient pad-to-pad clearance, and recommended land patterns that conflict with typical solder paste apertures. Verify recommended solder mask and stencil notes in the datasheet mechanical section to avoid tombstoning, solder bridging, or pick-and-place orientation errors.
What does the part numbering sequence C112 11A073 050 10 signify?
"C112" denotes the family and package outline; "11A073" indicates an 11 A class with internal series code 073; "050" is the 50 V voltage rating; "10" is revision/lot code. Confirming this exact layout avoids costly substitution mismatches.
