PCB Technical - IS410, 370HR, IT180A, S1170 performance comparison

Main considerations for PCB material selection

1. PCB fabrication manufacturability;

2. Timely availability of PCB materials;

3. PCB cost factors;

4. Applicability of laws and regulations, etc.;

Considering the above factors specifically involves the following aspects:

1. Tg value (the glass transition point temperature of the material); (consideration of "lead-free" compatibility)

2. Td value or T260, T288 (the thermal decomposition temperature of the material); (considering "lead-free" compatibility)

3. Er value and Tanδ (Dk and Df) (dielectric loss and dielectric loss tangent);

4. Halogen content (whether it is a halogen-free material);

6. Other considerations: CAF (anode conductive wire), IST, Q1000, UL grade, CTI (tracking index), water absorption, etc.

Common substitutes for materials whose Tg value is the focus

Ordinary Tg: S1141; S6018 (RCC)

2. Medium Tg: IT158; S1000; all are "lead-free" compatible materials;

3. Tg 170-180:

S1141 170: Has been converted to S1170 as a whole, and will not be used gradually;

S1170: Tg 170-180 material currently in mainstream use;

S1000-2: Tg 170-180 material with high Td; further upgrade of S1170;

IT180: performance is close to S1000-2;

FR-406: ISOLA company product; performance is close to S1141 170;

PCL-370HR: ISOLA company product; best performance;

N4000-6: NELCO product; performance is close to S1141 170;

It is recommended to use S1170 instead.

Common substitutes for materials whose Td value is the focus of attention

1. S1141 Tg =140 Td =310 degree Celsius Z-CTE (50-260 degree Celsius )=4.5%

2. S1141 170 Tg =170 Td =300 degree Celsius Z-CTE (50-260 degree Celsius )=3.5%

3. S1170 Tg =170 Td =335 degree Celsius Z-CTE (50-260 degree Celsius )=3.3%

4. S1000 Tg =150 Td =335 degree Celsius Z-CTE (50-260 degree Celsius )=3.0%

5. IT158 Tg =150 Td =330 degree Celsius Z-CTE (50-260 degree Celsius)=3.0%

6. S1000-2 Tg =170 Td =335 degree Celsius Z-CTE (50-260 degree Celsius )=2.9%

7. S6018 Tg =150 Td =310 degree Celsius RCC material

8. IT180 Tg =180 Td =340 degree Celsius Z-CTE (50-260 degree Celsius )=3.0%

9. FR-406 Tg = 170 Td = 300 degree Celsius Z-CTE (50-260 degree Celsius) =?

10. N4000-6 Tg =175 Td = 310 degree Celsius Z-CTE (50-260 degree Celsius )=3.9%

11. PCL-370HR Tg =180 Td =350 degree Celsius Z-CTE (50-260 degree Celsius )=2.7%

12. IS410 Tg =175 Td =? degree Celsius Z-CTE (50-260 degree Celsius )=?

13. N4000-11 Tg =175 Td =360 degree Celsius Z-CTE (50-260 degree Celsius )=3.2%

It is recommended to use S1170 instead of the above (except S6018)

Common substitutes for materials focusing on Dk and Df

High performance FR-4 material part (N4000-13, N4000-13SI Df are parameters under 1GHZ; 11N Df are parameters under 10GHZ; others are parameters under 1GHZ):

1. Shengyi S1860 Dk=3.6; Df=0.008 Tg=210 degree Celsius

2. Isola FR408 Dk=3.7; Df=0.010 Tg=180 degree Celsius

3. Isola Getek Dk=3.9; Df=0.010 Tg=180 degree Celsius

4. Nelco N4000-13 Dk=3.7; Df=0.009 Tg=210 degree Celsius

5. Arlon 11N Dk=3.8; Df=0.010 Tg=215 degree Celsius

6. Nelco N4000-13SI Dk=3.4; Df=0.008 Tg=210 degree Celsius

The above suggest to use Shengyi S1860 instead

Non-PTFE high frequency application material (10GHZ parameter, Tg=280 degree Celsius)

1. Rogers RO4350B Dk=3.48; Df=0.0037 UL94VO

2. Rogers RO4003C Dk=3.38; Df=0.0027 N/A

3. Arlon 25FR Dk=3.58; Df=0.0035 UL94VO

4. Arlon 25N Dk=3.38; Df=0.0025 N/A

It should be noted that RO4350B 4mil Dk=3.36

Dk=3.50 in PTFE material

1. Arlon AD350, AD350A Dk=3.50; Df=0.003

2. Taconic RF-35, RF-35P Dk=3.50; Df=0.0018, 0.0025

Dk=2.55 in PTFE material

1. Arlon Diclad 527 Dk=2.40-2.60; Df=0.0022

2. Arlon AD255 Dk=2.55; Df=0.0018

3. Taconic TLX-8 Dk=2.45-2.65; Df=0.0019

Dk=2.17-2.20 in PTFE material

1. Arlon Diclad 880 Dk=2.17, 2.20; Df=0.0009

2. Taconic TLY-5 A, TLY-5 Dk= 2.17, 2.20; Df=0.0009

3. Rogers RT5880 Dk= 2.20; Df=0.0009

Prepreg for non-PTFE high frequency materials

1. Rogers RO4403 (3.9mil) Dk=3.17; Df=0.005 N/A

2. Rogers RO4450B (3.9mil) Dk=3.54; Df=0.004 UL94VO

3. Arlon 25FR 1080 (3.9mil),

Arlon 25FR 2112 (5.8mil)

Dk=3.58; Df=0.0035 UL94VO (all the same as the corresponding 25FR)

4. Arlon 25N 1080 (3.9mil),

Arlon 25N 2112 (5.8mil)

Dk=3.38; Df=0.0025 N/A (all the same as the corresponding 25N)

Bonding film used in PTFE high frequency material

1. Rogers RO3001 (1.5mil) Dk=2.28; Df=0.003

2. Arlon Cuclad 6700 (1.5mil) Dk=2.35; Df=0.0025

3. Taconic HT 1.5 (1.5mil) Dk=2.35; Df=0.0025

Thermoplastic materials are not recommended

Prepreg used for PTFE high frequency materials

1. Taconic TPG-30 (4.5mil); Dk=3.00; Df=0.0038

2. Taconic TPG-32 (4.5mil); Dk=3.20; Df=0.0050

3. Taconic TPG-35 (4.5mil); Dk=3.50; Df=0.0050

2. Gore Speed board C; Dk=2.60; Df=0.0040

(1.5, 2.0, 2.2, 3.4mil)

Material replacement focusing on halogen content

Halogen-free FR-4 material

1. Shengyi S1155 Tg= 135 degree Celsius; Td=370 degree Celsius;

2. Shengyi S1165 Tg= 170 degree Celsius; Td=360 degree Celsius;

3. Shengyi S6015 Tg= 145 degree Celsius; Td=325 degree Celsius; (halogen-free RCC)

4. Iteq IT140G Tg= 145 degree Celsius; Td=365 degree Celsius;

5. Iteq IT155G Tg=160 degree Celsius; Td=356 degree Celsius;

6. Iteq IT170G Tg=185 degree Celsius; Td=360 degree Celsius;

Material replacement with CTI as the focus

Shengyi S1601

CTI 400-600V has corresponding PP S0601

Tg= 135 degree Celsius Td =310 degree Celsius;

Shengyi S1600

CTI greater than 600V does not correspond to PP

Tg= 135 degree Celsius Td =310 degree Celsius;

iPCB Circuits Limited(iPCB®) manufactures high speed multilayer PCB, including IS410, 370HR, IT180A, S1170, S1000-2, etc., if necessary, please contact ipcb company. Email: sales@ipcb.com.