SLG20-05 Fast Recovery High Voltage Diode

SLG20-05 Fast Recovery High Voltage Diode

SLG20-05 Fast Recovery High Voltage Diode

The SLG20-05 fast recovery high voltage diode is a 20 kV, 500 mA axial-leaded rectifier with a 70 ns reverse recovery time, built for engineers who need dependable switching in insulating oil, insulating gas, or secondary packaging. HVDIODE acts as the high voltage diode supplier for teams that specify the part by model number, while the same factory operates as the high voltage diode manufacturer that controls the high thermal conductivity epoxy molding, the high temperature resistant chip, and the surge current testing behind every unit.

SLG20-05 Fast recovery High voltage diode 20KV 500mA 70nS
SLG20-05 Fast recovery High voltage diode 20KV 500mA 70nS

Key Features and Construction

The SLG20-05 is an axial leaded fast recovery rectifier built around a high temperature resistant chip inside a molded epoxy body.

SLG20-05 Fast recovery High voltage diode 20KV 500mA 70nS
SLG20-05 Fast recovery High voltage diode 20KV 500mA 70nS
  • Axial leaded connection
  • High thermal conductivity epoxy compound molding
  • High speed switch response characteristics
  • Special high temperature resistant chip
  • Excellent surge current resistance

Package No. HVD509-1. The published ratings include a 20 kV repetitive peak backward voltage, a 500 mA average forward current, and a 70 ns backward recovery time.

Specifications at a Glance

Absolute maximum ratings and electrical characteristics as published for the SLG20-05 fast recovery high voltage diode.

SLG20-05 Fast recovery High voltage diode 20KV 500mA 70nS
SLG20-05 Fast recovery High voltage diode 20KV 500mA 70nS
  • Repetitive peak backward voltage (Vrrm): 20 kV
  • Peak working backward voltage (Vrwm): 20 kV
  • Average forward current (If(AV)): 500 mA
  • Backward recovery time (Trr): 70 ns
  • Surge forward current (Ifsm): 30 A

Operating ambient temperature spans -40 °C to +175 °C, and storage temperature spans -40 °C to +150 °C.

SLG20-05 data sheet values as published on the product page.
Parameter Symbol Unit Test Conditions Value
Repetitive Peak Backward VoltageVrrmKVTa = 25 °C, Ir = 2.0 μA20
Peak Working Backward VoltageVrwmKVTa = 25 °C, Ir = 2.0 μA20
Average Forward CurrentIf(AV)mA50 Hz half-sine wave, resistance load, @ Tbreak = 50 °C500
Backward Recovery TimeTrrnS—70
Surge Forward CurrentIfsmA0.01 s @ half-sine wave 50 Hz30
Operating Ambient TemperatureTa°C—-40 to +175
Storage TemperatureTstg°C—-40 to +150
Forward Peak VoltageVfmV—≥22.0
Backward Peak CurrentIrrm1μA@ Ta = 25 °C, VRM = VRRM2
Backward Peak CurrentIrrm2μA@ Ta = 100 °C, VRM = VRRM20.0

Applications and Installation Guidance

Choosing a high-voltage diode is closely related to the usage environment. The product page recommends the following conditions.

  • Insulating oil — a recommended medium for stable high-voltage operation.
  • Insulating gases — a recommended alternative for gas-insulated assemblies.
  • Secondary packaging — used where heat dissipation and other parameter performance requirements are high.
  • Exposed air or added air cooling — a small high-voltage diode can discharge more easily and heat dissipation in open air is average, so added air cooling is advised.
  • Insulated electrodes — for diodes used in exposed air, install them with insulated electrodes at both ends.

For surface insulation treatment, the product page lists silicone, acrylic, urethane, and epoxy adhesives as general options.

SLG20-05 Fast recovery High voltage diode 20KV 500mA 70nS
SLG20-05 Fast recovery High voltage diode 20KV 500mA 70nS

Ordering, Sampling, and Technical Support

Share your operating conditions, insulation medium, and target quantity so the SLG20-05 configuration can be confirmed before you order.

Related Reading

Three notes to help clarify product requirements before contacting the supplier.

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Frequently Asked Questions

what is the slg20-05 fast recovery high voltage diode rated for?

the slg20-05 is rated for a repetitive peak backward voltage (vrrm) of 20 kv and a peak working backward voltage (vrwm) of 20 kv, with a 500 ma average forward current measured at 50 hz half-sine wave, resistance load, at tbreak = 50 °c.

how fast does the slg20-05 switch, and how much surge current can it handle?

the backward recovery time (trr) is 70 ns, which supports high speed switching, and the surge forward current (ifsm) is 30 a for 0.01 s at half-sine wave 50 hz.

which insulation environments are recommended for this diode?

insulating oil and insulating gases are both recommended. secondary packaging is used where heat dissipation and other parameter performance requirements are high.

what should be considered when the diode is used in exposed air?

air cooling is advised because a small high-voltage diode can discharge more easily and heat dissipation in open air is average. for diodes used in exposed air, install them with insulated electrodes at both ends.

what package and construction does the slg20-05 use?

package no. hvd509-1. the diode uses an axial leaded connection with high thermal conductivity epoxy compound molding, a special high temperature resistant chip, and excellent surge current resistance.

what are the operating and storage temperature ranges?

the operating ambient temperature (ta) range is -40 °c to +175 °c, and the storage temperature (tstg) range is -40 °c to +150 °c.

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