STE Component Applications from PD Chargers to EV Charging

A November 2025 Chongdiantou roundup collects reported STE component applications across consumer charging, portable power, household appliances and charging equipment for electric mobility. It groups the equipment by capacitor, thermistor and varistor family, offering a route back to the publisher's underlying teardown reports.

All product and application categories are retained below. One identical HONOR X70 entry repeated within the original varistor list is shown once. Other repeat appearances across families remain because they identify different reported components. C denotes USB-C and A denotes USB-A; names without a confirmed English market equivalent use romanized source labels.

SMD Y1 capacitors

The source highlights the reduced mounting height of surface-mount Y capacitors, flame-retardant epoxy encapsulation and tape-and-reel packaging for automated assembly. It lists two charger reports:

1. BULL 45 W USB-C GaN charger
2. Motorola 90 W USB-C charger

X2 safety capacitors

Chongdiantou lists 275, 305, 310, 330 and 350 VAC options in its family overview. It describes across-line interference suppression and capacitive-dropper applications, and mentions flammability and environmental-compliance claims. These broad descriptions require confirmation against the selected variant. Its 16 equipment entries are:

1. GPD computer original 100 W GaN charger
2. Huawei Pura X original 66 W Bing Tang GaN charger
3. Unitree robot 302.4 W charger
4. Motorola 90 W USB-C charger
5. OPPO 100 W Xiaofangping GaN charger
6. Huntkey 240 W three-C GaN charger
7. Guozili 50 W dual-C GaN charger
8. Baseus 67 W three-C GaN charger with retractable cable
9. Baseus 67 W 10000 mAh power bank with display
10. REDMAGIC 65 W Deuterium Energy Cube mini
11. Huawei 100 W multiport charger
12. Aohi 65 W 2C1A modular GaN charger
13. Baseus 35 W 10000 mAh power bank with display
14. Xiaomi 45 W charger
15. Anker 70 W 3C1A GaN charger
16. HONOR Choice 66 W GaN charger

CD ceramic Y1 capacitors

The article describes ceramic dielectric construction with flame-retardant epoxy encapsulation and places CD capacitors in noise-suppression, coupling and bypass applications. The expanded list includes a robot charger, an AC charging station and an EV charging module:

1. Beishida K46 45 W USB-C GaN charger
2. Motorola 50 W 1A1C charger
3. ARRIS 5 W Ethernet adapter
4. StarCharge 7 kW AC charging station
5. Lenovo 45 W USB-C charger
6. Unitree robot 302.4 W charger
7. Beishida 45 W USB-C charger described as integrated fast charging
8. Xiaomi 15 Pro original 90 W GaN charger
9. Gospower 15 kW EV charging module
10. Beishida 65 W 2C1A GaN charger with display

CE ceramic Y2 capacitors

The historical CE overview gives a capacitance range of 100–10000 pF, operation from −40 to +125 °C and storage at 15–35 °C. It describes ceramic construction with flame-retardant epoxy encapsulation. This is a family summary, not a complete specification for the components in each product:

1. Dyson 53.4 W DC adapter
2. Ninebot 160 W lithium-battery e-bike charger described as meeting the new Chinese standard
3. Ninebot 1080 W e-bike charger described as meeting the new Chinese standard
4. Jackery 2 kWh portable power station
5. HONOR X70 original 80 W SuperCharge charger

CBB21B boxed film capacitors

CBB21B is described as a plastic-cased metallized polypropylene family for high-frequency, AC, DC and pulse applications. The report lists 0.01–10 µF and −40 to +105 °C operation, and notes self-healing behavior and high insulation resistance. The referenced equipment is:

1. EcoFlow RIVER 3 Plus 600 W 286 Wh portable power station

MF72 thermistors

The MF72 section discusses inrush-current limiting in power-conversion, switching and UPS equipment. It lists disc sizes from 5 to 20 mm without providing complete ordering codes for the cited equipment. Its three applications are:

1. Panasonic 1200 W hair dryer
2. BULL 20 W 2A1C GaN extension power strip
3. HONOR X70 original 80 W SuperCharge charger

Varistors

The source associates the varistor family with transient overvoltage protection and mentions CQC, VDE and UL approvals. Exact electrical limits, test conditions and approval coverage remain part-specific. The list below retains all distinct entries; the original repeats the HONOR X70 charger:

1. Huntkey EasyCombo 6S USB extension power strip
2. Xiaomi 120 W 3C1A GaN charger
3. Panasonic 1200 W hair dryer
4. Wofu Xiaohuatong high-speed hair dryer
5. IKEA SJÖSS 45 W dual-port charger
6. Mijia 1600 W high-speed hair dryer
7. HONOR 66 W SuperCharge charger
8. Huawei 100 W Bing Tang GaN charger
9. HONOR X70 original 80 W SuperCharge charger
10. Mijia GSHF04LF 1600 W high-speed hair dryer
11. EcoFlow RAPID Pro 320 W GaN desktop charging station

Scope of the report

The wider equipment mix is the main development in this roundup. It includes both small consumer chargers and a substantially larger EV charging module, but application names alone do not establish automotive qualification or the operating conditions of an individual component. Those questions require its exact identity and supporting documentation.

The source also repeats historical company, laboratory and management-system descriptions. They are background to the report rather than evidence that every listed part holds every mentioned approval. Likewise, a teardown establishes what the publisher reported in a particular product; it does not establish an exclusive supply agreement or show that one component caused the equipment's measured performance.

Further reading in the original includes STE surface-mount Y capacitors, SMD NTC thermistors and SMD varistors. For a design review, start with the relevant equipment report, confirm the markings and obtain the current component specification before comparing candidates.

Figures and tables from the original report

The following figures retain their original captions, markings and historical context. Transcribed tables present the values shown in the published images; product selection should use the specifications for the selected part.

All 49 rows are preserved, including the repeated HONOR X70 80 W charger in the varistor group. Component-family assignments are those of the original report.

Related reading cited by the original report

Further reading from the original report (Chinese).

• BULL 45 W USB-C GaN charger teardown
• Motorola 90 W USB-C charger teardown
• GPD 100 W GaN charger teardown
• Huawei Pura X 66 W Bing Tang GaN charger teardown
• Unitree robot 302.4 W charger teardown
• OPPO 100 W Xiaofangping GaN charger teardown
• Huntkey 240 W three-USB-C GaN charger teardown
• Guozili 50 W dual-USB-C GaN charger teardown
• Baseus 67 W three-USB-C GaN charger with retractable cable teardown
• Baseus 67 W / 10000 mAh power bank with display teardown
• REDMAGIC 65 W Deuterium Energy Cube mini teardown
• Huawei 100 W multiport charger teardown
• Aohi 65 W 2C1A modular GaN charger teardown
• Baseus 35 W / 10000 mAh power bank with display teardown
• Xiaomi 45 W charger teardown
• Anker 70 W 3C1A GaN charger teardown
• HONOR Choice 66 W GaN charger teardown
• Beishida K46 45 W USB-C GaN charger teardown
• Motorola 50 W 1A1C charger teardown
• ARRIS 5 W Ethernet adapter teardown
• StarCharge 7 kW AC charging station teardown
• Lenovo 45 W USB-C charger teardown
• Beishida 45 W USB-C integrated fast charger teardown
• Xiaomi 15 Pro 90 W GaN charger teardown
• Gospower 15 kW EV charging module teardown
• Beishida 65 W 2C1A GaN charger with display teardown
• Dyson 53.4 W DC power adapter teardown
• Ninebot 160 W lithium-battery e-bike charger teardown
• Ninebot 1080 W e-bike charger teardown
• Jackery 2 kWh portable power station teardown
• HONOR X70 80 W SuperCharge charger teardown
• EcoFlow RIVER 3 Plus 600 W / 286 Wh power station teardown
• Panasonic 1200 W hair dryer teardown
• BULL 20 W 2A1C GaN extension power strip teardown
• Huntkey EasyCombo 6S USB extension power strip teardown
• Xiaomi 120 W 3C1A GaN charger teardown
• Wofu Xiaohuatong high-speed hair dryer teardown
• IKEA SJÖSS 45 W dual-port charger teardown
• Mijia 1600 W high-speed hair dryer teardown
• HONOR 66 W SuperCharge charger teardown

Further reading from the original report (Chinese).

• Huawei 100 W Bing Tang GaN charger teardown
• Mijia GSHF04LF 1600 W high-speed hair dryer teardown
• EcoFlow RAPID Pro 320 W GaN desktop charging station teardown
• STE surface-mount Y capacitor introduction
• STE surface-mount NTC thermistors for compact fast chargers
• STE SMD varistor product introduction