Description
The TH Series from HVRTION represents a premium family of high-performance fast recovery high voltage diodes engineered for applications that demand high forward current (350mA), ultra-fast switching (80ns), exceptional surge tolerance (30A), and ultra-low leakage (2µA). Covering a voltage range from 8KV to 30KV, the TH series delivers unparalleled efficiency and reliability. The large axial package (φ7.5×22mm / φ1.2mm leads) provides excellent creepage distance and thermal dissipation for high voltage operation up to 30KV.
Series Overview – Models & Key Parameters
|
Type |
Rated Values |
Temp. Condition |
Electrical Characteristic |
Dimension |
|||||
|
VRRM |
IF(AV) |
IFSM |
Tj |
Tstg |
VF |
IR1 |
Trr |
φbody*L, φlead |
|
|
[IFM=200mA] |
[VR=VRRM] |
||||||||
|
KV |
mA |
A |
℃ |
℃ |
V |
μA |
μS |
mm |
|
|
TH08F |
8 |
350 |
30 |
130 |
-40~+130 |
18 |
2 |
0.08 |
φ7.5*22/Φ1.2 |
|
TH10F |
10 |
350 |
30 |
130 |
-40~+130 |
20 |
2 |
0.08 |
φ7.5*22/Φ1.2 |
|
TH12F |
12 |
350 |
30 |
130 |
-40~+130 |
24 |
2 |
0.08 |
φ7.5*22/Φ1.2 |
|
TH15F |
15 |
350 |
30 |
130 |
-40~+130 |
28 |
2 |
0.08 |
φ7.5*22/Φ1.2 |
|
TH20F |
20 |
350 |
30 |
130 |
-40~+130 |
30 |
2 |
0.08 |
φ7.5*22/Φ1.2 |
|
TH25F |
25 |
350 |
30 |
130 |
-40~+130 |
40 |
2 |
0.08 |
φ7.5*22/Φ1.2 |
|
TH30F |
30 |
350 |
30 |
130 |
-40~+130 |
48 |
2 |
0.08 |
φ7.5*22/Φ1.2 |
Key Features
High Forward Current – 350mA
- Higher current capability than standard 100mA or 200mA diodes
- Supports medium-power rectification, capacitor charging, and industrial loads
- Reduces component count and simplifies PCB layout
Wide Voltage Range – 8KV to 30KV
- Eight models covering the most common high voltage levels
- One family for multiple projects – from 8KV to 30KV
Fast Recovery – 80ns (F series)
- Dramatically reduces switching losses and reverse recovery heating
- Ideal for high frequency resonant converters, flyback, and boost topologies
Extremely Low Leakage Current – 2µA at 25°C, 10µA at 100°C
- Industry-leading low reverse current at rated voltage
- Minimises standby power consumption and heat generation
- Extends system lifetime in continuous high voltage bias
High Surge Current Capability – IFSM = 30A
- Outstanding 30A peak forward surge current (single cycle)
- Excellent robustness for capacitor charging, inrush currents, and fault conditions
- Withstands harsh electrical environments and pulsed loads
Low Forward Voltage Drop
- VFM ranges from 12V (TH08) to 48V (TH30F) at full 350mA
- Reduces conduction losses, improving overall system efficiency
High Junction Temperature – Tj = 120°C
- Reliable operation in elevated ambient temperatures
- Suitable for sealed enclosures and demanding industrial environments
Large Axial Package – Φ7.5×22mm body, Φ1.2mm leads
- Extended creepage distance for safe high voltage isolation up to 30KV
- Excellent thermal dissipation for 350mA continuous current
- Robust 1.2mm diameter leads for mechanical strength and easy soldering
- Compatible with through-hole mounting, wave soldering, and manual assembly
RoHS & REACH Compliant
- Environmentally friendly, lead-free epoxy encapsulation
- UL94V-0 flame retardant case material
- Axial lead design – suitable for through-hole mounting, wave soldering, and manual assembly. The large 7.5×22mm body ensures safe clearance for voltages up to 30KV.
Applications – Where to Use the TH Series
The TH series is the optimal choice for medium-to-high voltage, medium-power (350mA) systems that demand ultra-fast recovery, ultra-low leakage, and the highest surge robustness.
1. X-Ray & Medical Imaging
High voltage rectification in X-ray generators, CT scanners, dental and mammography systems
350mA current capability supports higher power X-ray tubes
Ultra-low leakage (2µA) ensures stable high voltage output and patient safety
2. Solid-State Laser Drivers & Pulsed Lasers
80ns ultra-fast recovery enables extremely sharp pulse edges for laser diode and flashlamp drivers
30A surge current reliably withstands capacitor discharge events
Ideal for medical, industrial, and military laser systems
3. Electrostatic Precipitators & Industrial Air Purifiers
Reliable rectification for high voltage ionizers and dust collectors
High current (350mA) supports large precipitator systems
Low leakage reduces corona current waste and improves efficiency
4. High Frequency High Voltage Power Supplies
Flyback, boost, and resonant converters operating at 100-150kHz
80ns Trr dramatically minimises reverse recovery losses
350mA rating suitable for medium-power converters (100-250W range)
5. Capacitor Charging Power Supplies (CCPS)
Exceptional 30A surge capability handles high inrush charging currents
30KV rating suitable for defibrillators, pulsed lasers, radar modulators, and pulsed power systems
6. High Voltage Test Equipment (HIPOT Testers)
Accurate AC-DC rectification with ultra-low leakage (2µA) preserves measurement precision
350mA allows fast charging of test capacitances
7. Electrostatic Coating & Powder Spraying
30A surge withstands frequent arc discharges in industrial environments
Large package provides reliable performance in dusty, harsh conditions
9. Secondary Applications
Electron beam power supplies (e-beam welders, sterilizers)
Mass spectrometers and particle accelerators (auxiliary high voltage stages)
Radar modulators and defence avionics
High voltage DC-DC converters for industrial controls
Medical defibrillator charging circuits
High voltage power supplies for photomultiplier tubes (PMTs)
Quality & Reliability
- 100% electrical testing
- Lead-free and RoHS3 compliant
Lead time:
- Engineering samples: 1-3 business days (stock dependent)
- Production quantities: 2-4 weeks
Packing: Bulk (100 pcs per polybag)
Request a Free Sample or Get a Quote
Ready to test the TH series in your design? Contact HVRTION's high voltage diode experts.
Why Hvrtion?
- 20+ years focused exclusively on high voltage discrete semiconductors
- Proven field reliability in medical, industrial, and defence applications worldwide
- Fast sample delivery – get prototypes in days, not weeks
- Competitive pricing for OEM, CEM, and volume orders
- Direct technical support from experienced HV applications engineers
- Highest quality standards – 100% tested
- Choose HVRTION – Your partner for high voltage rectification.
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