Hysol MG21F-02 | Black Epoxy Mold Compound

Harmonization Code : 3907.30.00.85 | Polyacetals, other polyethers and epoxide resins, in primary forms; polycarbonates, alkyd resins, polyallyl esters and other polyesters, in primary forms : Epoxide resins : Other

MG21F-02 Black Epoxy Mold CompoundHysol MG21F-02 | Black Epoxy Mold CompoundMG21F-02 Black Epoxy Mold CompoundMG21F-02 Black Epoxy Mold Compound

Main features

  • Amazing HTRB performance
  • Excellent adhesion to Sn, Si and Cu
  • Encapsulation of low voltage diodes

Product Description

Hysol MG21F-02 is a high productivity, low cost, epoxy molding compound, designed specifically for high volume encapsulation of low voltage diodes and small signal transistors. It offers excellent reliability & HTRB data and has been used for diode bridge, axial diodes, diode metal electrode leadlesss face (MELF) and other high voltage and discrete semiconductor packages. It offers excellent adhesion to Sn, Si and Cu and amazing HTRB performance.

Hysol MG21F-02 performs very well during high-temperature reverse bias testing for devices running up to 800V and at 150°C. The largest cause of failure of epoxy molding compounds on these devices is the result of gate leakage and then ultimately catastrophic run-away current when tested under bias at temperature. MG21F-02 performs very well under these conditions. The CTI (comparative tracking index) of the MG-21F-02 is 325V.

Hysol MG21F-02 was developed many years ago, but is still one of the best EMC on the market for diodes, bridges and high voltage diodes. Many competitors have tried and failed to compete against this MG21F-02. Those that did manage to meet the same performance targets as the MG21F-02 did so at prices that were nearly twice that of the MG21F-02, leaving this product leading with an excellent price/performance correlation. Typical applications and uses of MG21F-02 include but are not limited to  28, 28 and 56 pin DL TSSOP, SOT, SOIC, PDIP and other power discrete and high voltage semiconductor packages.

We are currently developing the Green version of this product, to ensure it does not contain TBBP-A or antimony trioxide while also maintaining its flame retardant and electrically stable properties. Contact us for more information.

Product Family

MG21F-02

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Product availability
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Packaging
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TDS, SDS & Technical Documents
  • Hysol MG21F-02
    English (Technical Data Sheet (TDS))
  • Comparative Tracking Index(CTI) Test Report - MG21F-02
    English (Technical documents)
  • SDS Hysol_MG 21F-02_EU_EN_2023
    English (Safety Data Sheet (SDS))
  • CAPLINQEpoxyMoldCompoundHandlingGuide1
    English (Technical documents)

Technical Specifications

General Properties
Color Color
Black
Filler Content Filler Content
71 %
Specific Gravity Specific Gravity
1.81
Electrical Properties
Volume Resistivity Volume Resistivity
20000000000000000 Ohms⋅cm
Chemical Properties
Moisture absorption Moisture absorption
0.22 %
Physical Properties
Spiral Flow @ 175°C Spiral Flow @ 175°C
65 cm
Thermal Properties
Glass Transition Temperature (Tg) Glass Transition Temperature (Tg)
179 °C
Thermal Conductivity Thermal Conductivity
0.7 W/m.K
UL 94 Rating UL 94 Rating
V0
Mechanical Properties
Molded Shrinkage Molded Shrinkage
0.23 %
Curing Conditions
Transfer Pressure Transfer Pressure
35 - 105 kg/cm2
Transfer Time Transfer Time
12 - 25 s

Additional Information

Comparison of MG21F-02 with new Halogen-Free, Green GR21F-02 formulations

Ionic Conductivity vs Temperature for halogen-free versions of MG21F-02
Judging from the "Ionic conductivity VS Temperature figure", halogen-free products GR21F-02, GR21F-02F4, GR21F-02F4A and GR21F-02F4B have similar electrical stability as MG21F-02 up to 200℃.

   

MG21F-02

GR21F-02

GR21F-02F4

GR21F-02F4A

GR21F-02F4B

Formula Enhancement

Flame Retardant

TBBP-A & Antimony Trioxide

Not Contained

Green Flame Retardant X

Green Flame Retardant X+

Green Flame Retardant X+

Ion Capture

Not contained

Not Contained

Ion Capture A

Ion Capture B

Ion Capture A

Ion Capture B

Ion Capture A+

Expectation

Halogen-free

-

UL94 V-0 (1/8 inches)

-

Improved Electrical Stability

-

 

 

 

Comparative Tracking Index

Test method: WI HHE Q A.6-124 (3.0mm Thickness)

 Voltage (V) #

Drop To Track

Oservation

Average

300

1

100

Eroded

100

 

 

2

100

Eroded

3

100

Eroded
4 100 Eroded
5 100 Eroded

 

350

1

86

Eroded

48

 

2

10

Flamed

325

1

100

Eroded

100

 

2

100

Eroded

3 100 Eroded
4 100 Eroded
5 100 Eroded

CTI(V) = 325

 

 

Customer reliability tests - Not Hysol Specifications

 

Diode type: TVS 500V/1,5μA

  • Standard Assembly process
  • HTRB test / Reliability
  • Temperature: 140°C
  • Reverse Bias: 375V
  • Duration: 24h

Compound / Colour Code

Molding Temperature (°C)

Transfer Time (sec)

Curing Time (sec)

Pre-heating (sec)

Post-Curing (h)

Product A

190

15

110

25 (0.4A)

8 @ 175°C

MG21F-02

185

25

60

24 (0.4A)

6 @ 175°C

New Green, Halogen-Free Alternative to Hysol MG21F-02

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