AVSS Wire: Difference between revisions

Latest revision as of 11:00, 11 December 2025

Typical appearance of AVSS wire. See below section for full color chart with abbreviation letters.

AVSS wire is a type of thin PVC insulated stranded copper wire used in essentially all modern Japanese vehicles where wire temperatures are under 80C.

AV wire is the oldest type of electrical wires for automotive. Recently, the industry has moved to wires which have thinner insulation and smaller outside diameter like AVSS and DIVUS(CIVUS) etc.

AVSS wire properties and specifications are dictated by the Japanese Automotive Standards Organization (JASO), especially JASO D625.

The full description of AVSS wire is as follows:

Very Thin PVC Insulated Low-voltage Copper Wires for Automobiles (Thin wall 2)

A: Low-voltage wires for automobiles

V: Vinyl

SS: Super thin type

AVSS wire is available from Japanese manufacturers such as Sumitomo.

AVSS Specifications


Conductor (Annealed copper stranded conductors)				Insulation	Overall diameter (㎜）		Identification marking		Heat resistance class (℃) ＊1	MAX. Conductor resistance 20℃） mΩ/m）	Approx. weight g/m）	Standard packing style	Standard length (m）＊2
Size	Construction （Strand №/Diam. mm）	Calculated area （mm²）	Outer diameter （㎜）	Thickness （㎜）	Standard	Max.	Band marking	Code marking	Heat resistance class (℃) ＊1	MAX. Conductor resistance 20℃） mΩ/m）	Approx. weight g/m）	Standard packing style	Standard length (m）＊2
0.3	7/0.26	0.3716	0.8	0.3	1.4	1.5	2pcs.	―	80	50.2	5	Coil shape	1,500
0.5	7/0.32	0.5629	1.0	0.3	1.6	1.7	1pc.	―	80	32.7	7	Coil shape	1,000
0.85	19/0.24	0.8596	1.2	0.3	1.8	1.9	2pcs.	―	80	21.7	10	Coil shape	1,000
1.25	19/0.29	1.255	1.5	0.3	2.1	2.2	1pc.	―	80	14.9	14	Coil shape	800
2(f)＊2	37/0.26	1.964	1.8	0.4	2.6	2.7	―	SS-2	80	9.50	22	Coil shape	500

AVSS Allowable Current

JASO D609 AVSS Wire Sizes and Currents
Size	Ambient temperature（℃）
Size	20	30	40	50	60	70
0.3	10	9	8	7	6	4
0.50	14	12	11	10	8	5
0.85	18	16	14	12	10	7
1.25	23	21	19	16	13	9
2（f）	31	29	26	22	18	13

AVSS Insulation Colors

AVSS Color naming scheme is important for interpreting Japanese wiring diagrams, wire harness drawings, and electrical distributions.

Standard Color Selection Chart
B	BG	BR	CH	DG	G	GR	L	LG	P	PU	R	SB	V	W	Y
black	beige	brown	dark brown	dark green	green	gray	blue	light green	pink	light violet	red	sky blue	violet	white	yellow

Sumitomo AVSS Product Page

@@ Line 1: / Line 1: @@
-[[File:AVSS.png|thumb|Typical appearance of AVSS wire]]
+[[File:AVSS.png|thumb|Typical appearance of AVSS wire. See below section for full color chart with abbreviation letters. ]]
 '''AVSS wire''' is a type of thin PVC insulated stranded copper wire used in essentially all modern Japanese vehicles where wire temperatures are under 80C.
@@ Line 15: / Line 15: @@
 '''SS''': Super thin type
+[[File:AVSS diag.png|thumb|525x525px]]
 '''AVSS wire''' is available from Japanese manufacturers such as [[Sumitomo Wiring Systems (SWS)|Sumitomo]].
 === AVSS Specifications ===