RM Cores – Low Profile

The increasing miniaturization of electronic circuits and Switched Mode power supplies being integrated into PCB philosophy, low profile components are necessary to overcome height restrictions. In some cases the conventional Windings can be replaced by printed circuit tracks directly onto the PCB.

The RM core’s low profile shape and ease of construction give significant advantages including, fast error free winding and efficient repeatable performance.

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Dimensional Details

Part No.	Core	A mm	B mm	C mm	D mm	E mm	F mm	G mm	Effective Parameters				Approx. Weight/ Set gms/ set
									^{Σ l/A} mm^-1	le mm	Ae mm²	Ve mm³	Approx. Weight/ Set gms/ set
29-250-	RM10LP	28.5_-1.3	21.2^+0.9	10.9_-0.4	6.7^+0.4	13.0_-0.2	10.5+0.25 -0.25	24.7_-1.1	0.34	33.9	99.1	3360	17.2

AL Values with Tolerance Code

Part No.	F44	F47	F48	F9C	F10	F39	F44A	F45
29-250-	4700R	-	-	10500R	-	19500Y	5200R	4900R

Dimensional Details

Part No.	Core	A mm	B mm	C mm	D mm	E mm	F mm	G mm	Effective Parameters				Approx. Weight/ Set gms/ set
									^{Σ l/A} mm^-1	le mm	Ae mm²	Ve mm³	Approx. Weight/ Set gms/ set
29-270-	RM14LP	42.2_-1.2	29⁺¹	15_-0.5	11.1^+0.6	20.5_-0.2	17.3+0.25 -0.25	34.8_-1.3	0.25	50.9	201	10230	55

AL Values with Tolerance Code

Part No.	F44	F47	F48	F9C	F10	F39	F44A	F45
29-270-	6710R	6280R	-	16275R	-	26640Y	7100R	7040R

Dimensional Details

Part No.	Core	A mm	B mm	C mm	D mm	E mm	F mm	G mm	Effective Parameters				Approx. Weight/ Set gms/ set
									^{Σ l/A} mm^-1	le mm	Ae mm²	Ve mm³	Approx. Weight/ Set gms/ set
29-210-	RM4LP	11_-0.4	8^+0.3	3.9_-0.2	4.3^+0.4	7.8_-0.2	6.3+0.25 -0.25	9.8_-0.4	1.2	17.3	14.5	251	1.2

AL Values with Tolerance Code

Part No.	F44	F47	F48	F9C	F10	F39	F44A	F45
29-210-	-	-	-	-	-	5000Y	1200R	-

Dimensional Details

Part No.	Core	A mm	B mm	C mm	D mm	E mm	F mm	G mm	Effective Parameters				Approx. Weight/ Set gms/ set
									^{Σ l/A} mm^-1	le mm	Ae mm²	Ve mm³	Approx. Weight/ Set gms/ set
29-2100-	RM5LP	14.6_-0.6	10.2^+0.4	4.9_-0.2	3.6^+0.4	7.8_-0.2	6.3+0.25 -0.25	12.3_-0.5	0.17	17.5	24.5	430	2.6

AL Values with Tolerance Code

Part No.	F44	F47	F48	F9C	F10	F39	F44A	F45
29-2100-	-	-	-	-	-	7700Y	2400R	-

Dimensional Details

Part No.	Core	A mm	B mm	C mm	D mm	E mm	F mm	G mm	Effective Parameters				Approx. Weight/ Set gms/ set
									^{Σ l/A} mm^-1	le mm	Ae mm²	Ve mm³	Approx. Weight/ Set gms/ set
29-220-	RM6LP	17.9_-0.6	12.4^+0.5	6.4_-0.2	4.5^+0.4	9_-0.2	6.84+0.25 -0.25	14.7_-0.6	0.58	21.8	37.5	820	4

AL Values with Tolerance Code

Part No.	F44	F47	F48	F9C	F10	F39	F44A	F45
29-220-	2500R	2400R	-	5500R	6600R	10500Y	3000R	2600R

Dimensional Details

Part No.	Core	A mm	B mm	C mm	D mm	E mm	F mm	G mm	Effective Parameters				Approx. Weight/ Set gms/ set
									^{Σ l/A} mm^-1	le mm	Ae mm²	Ve mm³	Approx. Weight/ Set gms/ set
29-230-	RM7LP	20.3_-0.8	14.75^+0.65	7.25_-0.3	4.7^+0.5	9.8_-0.2	7.8+0.25 -0.25	17.2_-0.7	0.52	23.5	45.3	1060	5.7

AL Values with Tolerance Code

Part No.	F44	F47	F48	F9C	F10	F39	F44A	F45
29-230-	-	-	3120R	-	-	11500Y	3300R	-

Dimensional Details

Part No.	Core	A mm	B mm	C mm	D mm	E mm	F mm	G mm	Effective Parameters				Approx. Weight/ Set gms/ set
									^{Σ l/A} mm^-1	le mm	Ae mm²	Ve mm³	Approx. Weight/ Set gms/ set
29-240-	RM8LP	23.2_-0.9	17^+0.6	8.55_-0.3	5.9^+0.4	11.6_-0.2	9.4+0.25 -0.25	19.7_-0.8	0.44	28.7	64.9	1860	9.2

AL Values with Tolerance Code

Part No.	F44	F47	F48	F9C	F10	F39	F44A	F45
29-240-	3600R	-	-	7050R	-	15000Y	4100R	3750R

28.5_-1.3

21.2^+0.9

10.9_-0.4

6.7^+0.4

13.0_-0.2

10.5+0.25
-0.25

24.7_-1.1

37.6_-1.5

24.9^+1.1

12.8_-0.4

9^+0.5

16.8^-0.2

13.8+0.25
-0.25

29.8_-1.2

11_-0.4

8^+0.3

3.9_-0.2

4.3^+0.4

7.8_-0.2

6.3+0.25
-0.25

9.8_-0.4

14.6_-0.6

10.2^+0.4

4.9_-0.2

3.6^+0.4

7.8_-0.2

6.3+0.25
-0.25

12.3_-0.5

17.9_-0.6

12.4^+0.5

6.4_-0.2

4.5^+0.4

9_-0.2

6.84+0.25
-0.25

14.7_-0.6

20.3_-0.8

14.75^+0.65

7.25_-0.3

4.7^+0.5

9.8_-0.2

7.8+0.25
-0.25

17.2_-0.7

23.2_-0.9

17^+0.6

8.55_-0.3

5.9^+0.4

11.6_-0.2

9.4+0.25
-0.25

19.7_-0.8