DO-204

General form of the packages described by DO-204. Lead diameter is not controlled less than E from the body to allow for minor irregularities.

DO-204 is a family of semiconductor packages defined by JEDEC. This family comprises lead-mounted axial devices with round leads.

Generally a diode will have a line painted near the cathode end.

Dimensions

Variants included in DO-204^[1]
		min	max	min	max	min	max	min	max	min	max
Variant	Other standards^[2]	Dimensions (mm)
		A		B		C		D		E
AA	DO-7	25.40	38.10	5.85	7.65	0.46	0.55	2.16	2.71	—	1.27
AB	DO-14	25.40	38.10	5.85	7.62	0.46	0.55	2.75	3.55	—	1.27
AC	DO-15	25.40	38.10	5.85	7.62	0.69	0.88	2.65	3.55	—	1.27
AD	DO-16	11.43	19.05	1.27	2.54	0.23	0.33	—	1.27	—	1.27
AE	DO-26	35.56	38.10	8.75	10.41	0.69	0.99	5.59	6.60	—	2.03
AF	DO-29	25.40	38.10	8.00	9.14	0.74	0.83	3.05	3.81	—	1.27
AG	DO-34	25.40	38.10	2.16	3.04	0.46	0.55	1.27	1.90	—	1.27
AH	DO-35	25.40	38.10	3.05	5.08	0.46	0.55	1.53	2.28	—	1.27
AJ	—	11.43	13.97	5.85	7.62	0.49	0.53	2.16	2.66	—	1.27
AK	—	11.43	13.97	3.81	4.45	0.36	0.40	1.66	1.90	—	1.27
AL	DO-41	25.40	—	4.07	5.20	0.72	0.86	2.04	2.71	—	1.27
AM	—	17.53	38.10	3.18	5.20	0.64	0.91	1.27	2.79	—	1.27
AN	—	25.40	—	5.08	5.84	0.71	0.86	2.54	3.05	—	1.27
AP	—	25.40	38.10	3.18	4.57	0.74	0.89	2.54	3.81	—	1.27
AR	—	27.95	38.10	9.27	9.52	1.22	1.32	6.10	6.35	—	2.54

Common variants

Several common packages are archived in DO-204 as variants, and may be referred to using their alternative names.

DO-35

1N4148 diodes, in the DO-35 package

The DO-35 is a semiconductor package type.^[3] It is often used to package small signal, low power diodes such as 1N4148 (a 100V, 300mA silicon diode.)

DO-41

The DO-41 is a common package used to encapsulate rectifier diodes. The name is derived from the JEDEC descriptor "Diode Outline, Case Style 41".^[4] DO-41 diodes are larger than signal diode packages such as DO-35, which are not required to handle large currents.

The most common diode using this packaging is the 1N400x series of rectification diodes.

A drawing of a DO-41 diode package. The cathode is marked with a silver or white band.

References

External links

Semiconductor packages

Diode	DO-204 (DO-35 / DO-41) DO-213 (MELF) DO-214 (SMA / SMB / SMC) SOD (SOD-123 / SOD-323 / SOD-523 / SOD-923)

Transistor	SOT / TSOT TO-3 TO-5 TO-18 TO-66 TO-92 TO-126 TO-220 TO-253 (DPAK) TO-263 (D2PAK)

Single row	SIP / SIL

Dual row	DFN DIP / DIL Flat Pack SO / SOIC SOP / SSOP TSOP / TSSOP ZIP

Quad row	LCC PLCC QFN QFP QUIP / QUIL

Grid array	BGA eWLB LGA PGA

Wafer	COB COF COG CSP Flip Chip PoP QP UICC WL-CSP / WLP

Related topics	Electronic packaging Integrated circuit packaging List of integrated circuit package dimensions List of integrated circuit packaging types Printed circuit board Surface-mount technology Through-hole technology

Note: It's relatively common to find packages that contain other components than their designated ones, such as diodes or voltage regulators in transistor packages, etc.

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