IPC A 610 LATEST 2026 TEST PAPER QUESTIONS AND
ANSWERS RATED A+
✔✔Rectangular or Square End Chip Components - 1,2,3 or 5 Side Termination(s) -
Termination Variations - Mounting Upside Down
Acceptable - Class 1
Process Indicator - Class 2,3 - ✔✔1, 3, 5 side termination chip components with surface
deposited electrical element is mounted toward the board
✔✔Rectangular or Square End Chip Components - 1,2,3 or 5 Side Termination(s) -
Termination Variations - Stacking
Acceptable - Class 1,2,3 - ✔✔Side overhang does not preclude formation of required
solder fillets
✔✔Rectangular or Square End Chip Components - 1,2,3 or 5 Side Termination(s) -
Termination Variations - Tombstoning
Defect - Class 1,2,3 - ✔✔Chip components standing on a terminal end (tombstoning)
✔✔Rectangular or Square End Chip Components - 1,2,3 or 5 Side Termination(s) -
Termination Variations - Center Terminations - Solder Width of Side Termination
Acceptable - Class 1,2 - ✔✔Width of side termination(s) is minimum 50% of component
termination width or 50% land width, whichever is less
✔✔Rectangular or Square End Chip Components - 1,2,3 or 5 Side Termination(s) -
Termination Variations - Center Terminations - Solder Width of Side Termination
Acceptable - Class 3 - ✔✔Width of the side termination is minimum 75% of component
termination or 75% land width, whichever is less
✔✔Rectangular or Square End Chip Components - 1,2,3 or 5 Side Termination(s) -
Termination Variations - Center Terminations - Minimum Fillet Height of Side
Termination
Acceptable - Class 1,2,3 - ✔✔Wetting is evident on the vertical surface(s) of the
component side termination
✔✔Cylindrical End Cap Terminations - ✔✔This component is sometimes referred to as
MELF (Metal Electrode Leadless Face)
✔✔Cylindrical End Cap Terminations - Side Overhang (A)
Acceptable - Class 1,2,3 - ✔✔Side overhang (A) is 25% or less of the diameter of
component width (W) or land width (P), whichever is less
✔✔Cylindrical End Cap Terminations - End Overhang (B)
Defect - Class 1,2,3 - ✔✔Any end overhang (B)
, ✔✔Cylindrical End Cap Terminations - End Joint Width (C)
Acceptable - Class 1 - ✔✔End solder joint exhibits a wetted fillet
✔✔Cylindrical End Cap Terminations - Side Joint Length (D)
Acceptable - Class 2 - ✔✔Side joint length (D) is minimum 50% length of component
termination (R) or land length (S), whichever is less
✔✔Cylindrical End Cap Terminations - Side Joint Length (D)
Acceptable - Class 3 - ✔✔Side joint length (D) is minimum 75% length of component
termination (R) or land length (S), whichever is less
✔✔Cylindrical End Cap Terminations - Maximum Fillet Height (E)
Defect - Class 1,2,3 - ✔✔Solder fillet extends onto the component body top
✔✔Cylindrical End Cap Terminations - Minimum Fillet Height (F)
Acceptable - Class 3 - ✔✔Minimum fillet height (F) is solder thickness (G) plus either
25% diameter (W) of the component end cap or 1 mm [0.04 in], whichever is less
✔✔Cylindrical End Cap Terminations - Minimum Fillet Height (F)
Defect - Class 1,2,3 - ✔✔Minimum fillet height (F) does not exhibit wetting
✔✔Cylindrical End Cap Terminations - End Overlap (J)
Acceptable - Class 2 - ✔✔End overlap (J) between the component termination and the
land is minimum 50% the length of component termination (R)
✔✔Cylindrical End Cap Terminations - End Overlap (J)
Defect - Class 3 - ✔✔End overlap (J) is less than 75% of the length of the component
termination (R)
✔✔Castellated Terminations - Side Overhang (A)
Acceptable - Class 1,2 - ✔✔Maximum side overhang (A) is 50% castellation width (W)
✔✔Castellated Terminations - Side Overhang (A)
Acceptable - Class 3 - ✔✔Maximum side overhang (A) is 25% castellation width (W)
✔✔Castellated Terminations - End Overhang (B)
Acceptable - Class 1,2,3 - ✔✔No end overhang
✔✔Castellated Terminations - Minimum End Joint Width (C)
Acceptable - Class 1,2 - ✔✔Minimum end joint width (C) is 50% castellation width (W)
✔✔Castellated Terminations - Minimum End Joint Width (C)
ANSWERS RATED A+
✔✔Rectangular or Square End Chip Components - 1,2,3 or 5 Side Termination(s) -
Termination Variations - Mounting Upside Down
Acceptable - Class 1
Process Indicator - Class 2,3 - ✔✔1, 3, 5 side termination chip components with surface
deposited electrical element is mounted toward the board
✔✔Rectangular or Square End Chip Components - 1,2,3 or 5 Side Termination(s) -
Termination Variations - Stacking
Acceptable - Class 1,2,3 - ✔✔Side overhang does not preclude formation of required
solder fillets
✔✔Rectangular or Square End Chip Components - 1,2,3 or 5 Side Termination(s) -
Termination Variations - Tombstoning
Defect - Class 1,2,3 - ✔✔Chip components standing on a terminal end (tombstoning)
✔✔Rectangular or Square End Chip Components - 1,2,3 or 5 Side Termination(s) -
Termination Variations - Center Terminations - Solder Width of Side Termination
Acceptable - Class 1,2 - ✔✔Width of side termination(s) is minimum 50% of component
termination width or 50% land width, whichever is less
✔✔Rectangular or Square End Chip Components - 1,2,3 or 5 Side Termination(s) -
Termination Variations - Center Terminations - Solder Width of Side Termination
Acceptable - Class 3 - ✔✔Width of the side termination is minimum 75% of component
termination or 75% land width, whichever is less
✔✔Rectangular or Square End Chip Components - 1,2,3 or 5 Side Termination(s) -
Termination Variations - Center Terminations - Minimum Fillet Height of Side
Termination
Acceptable - Class 1,2,3 - ✔✔Wetting is evident on the vertical surface(s) of the
component side termination
✔✔Cylindrical End Cap Terminations - ✔✔This component is sometimes referred to as
MELF (Metal Electrode Leadless Face)
✔✔Cylindrical End Cap Terminations - Side Overhang (A)
Acceptable - Class 1,2,3 - ✔✔Side overhang (A) is 25% or less of the diameter of
component width (W) or land width (P), whichever is less
✔✔Cylindrical End Cap Terminations - End Overhang (B)
Defect - Class 1,2,3 - ✔✔Any end overhang (B)
, ✔✔Cylindrical End Cap Terminations - End Joint Width (C)
Acceptable - Class 1 - ✔✔End solder joint exhibits a wetted fillet
✔✔Cylindrical End Cap Terminations - Side Joint Length (D)
Acceptable - Class 2 - ✔✔Side joint length (D) is minimum 50% length of component
termination (R) or land length (S), whichever is less
✔✔Cylindrical End Cap Terminations - Side Joint Length (D)
Acceptable - Class 3 - ✔✔Side joint length (D) is minimum 75% length of component
termination (R) or land length (S), whichever is less
✔✔Cylindrical End Cap Terminations - Maximum Fillet Height (E)
Defect - Class 1,2,3 - ✔✔Solder fillet extends onto the component body top
✔✔Cylindrical End Cap Terminations - Minimum Fillet Height (F)
Acceptable - Class 3 - ✔✔Minimum fillet height (F) is solder thickness (G) plus either
25% diameter (W) of the component end cap or 1 mm [0.04 in], whichever is less
✔✔Cylindrical End Cap Terminations - Minimum Fillet Height (F)
Defect - Class 1,2,3 - ✔✔Minimum fillet height (F) does not exhibit wetting
✔✔Cylindrical End Cap Terminations - End Overlap (J)
Acceptable - Class 2 - ✔✔End overlap (J) between the component termination and the
land is minimum 50% the length of component termination (R)
✔✔Cylindrical End Cap Terminations - End Overlap (J)
Defect - Class 3 - ✔✔End overlap (J) is less than 75% of the length of the component
termination (R)
✔✔Castellated Terminations - Side Overhang (A)
Acceptable - Class 1,2 - ✔✔Maximum side overhang (A) is 50% castellation width (W)
✔✔Castellated Terminations - Side Overhang (A)
Acceptable - Class 3 - ✔✔Maximum side overhang (A) is 25% castellation width (W)
✔✔Castellated Terminations - End Overhang (B)
Acceptable - Class 1,2,3 - ✔✔No end overhang
✔✔Castellated Terminations - Minimum End Joint Width (C)
Acceptable - Class 1,2 - ✔✔Minimum end joint width (C) is 50% castellation width (W)
✔✔Castellated Terminations - Minimum End Joint Width (C)
