Pulse transformer

dryfor lamphigh-voltage

Product overview
Triggering is the process that creates the initial ionization inside a Xenon flashlamp by producing a high‑voltage pulse that initiates discharge. Most flashlamp systems use a trigger coil (trigger transformer) to generate short, high‑voltage pulses (typically microseconds or less). Excelitas supplies a range of trigger coils in multiple sizes and configurations for both external and series triggering, with variants suitable for SMD assembly.

Details
Two principal triggering approaches are used: series injection triggering and external triggering with dedicated coils.

External triggering applies a high‑voltage pulse to form a thin ionized streamer between anode and cathode. Coupling methods include a thin nickel wire wound around the lamp or a metal stripe on the lamp envelope. External trigger coils are typically smaller, lighter and more cost‑effective for many applications.

Series triggering provides higher timing accuracy and is commonly used with liquid‑cooled laser lamps. Coils for series triggering are larger because they must produce the HV ignition and withstand lamp currents up to several thousand amperes.

Specifications (table)
Part Type | Triggering Type | Sec. Voltage Max / kV Unloaded | Prim. Voltage Max / V Unloaded | Trigger Energy Max / mWs | Trigger Power max / W | Transformer Ratio | Prim. Inductance µH | Trigger Capacitor CZ / µF | Width mm | Height mm | Length mm
ZS 0609-4V0A | Parallel | 5 | 250 | 2 | 0.2 | 1:43 | 2 | 0.022-0.068 | 5 | 5 | 8
ZS 1090-MZ1 | Parallel | 7 | 330 | 3 | 0.2 | 1:23 | 9 | 0.022-0.068 | 8 | 8 | 9
ZS 1052 | Parallel | 11 | 300 | 10 | 0.5 | 1:36 | 20 | 0.047-0.22 | 8 | 8 | 16
ZS 1052-1* | Parallel | 11 | 300 | 10 | 0.5 | 1:36 | 20 | 0.047-0.22 | 8 | 8 | 16
ZS 1052-11* | Parallel | 11 | 300 | 10 | 0.5 | 1:36 | 20 | 0.047-0.22 | 8 | 8 | 16
ZS 1052-12* | Parallel | 11 | 300 | 10 | 0.5 | 1:36 | 20 | 0.047-0.22 | 8 | 8 | 16
ZS 1052 AC* | Parallel | 11 | 300 | 10 | 0.5 | 1:36 | 20 | 0.047-0.22 | 8 | 8 | 16
ZS 1052 AC-2B* | Parallel | 11 | 300 | 10 | 0.5 | 1:36 | 20 | 0.047-0.22 | 8 | 8 | 16
ZS 1031* | Parallel | 20 | 400 | 30 | 1 | 1:70 | 11 | 0.1-0.47 | 16 | – | 35
ZS 1031-11* | Parallel | 20 | 400 | 30 | 1 | 1:70 | 11 | 0.1-0.47 | 16 | – | 35
ZS 1031-15* | Parallel | 20 | 400 | 30 | 1 | 1:70 | 11 | 0.1-0.47 | 16 | – | 35
ZS 1031-7A* | Parallel | 20 | 400 | 30 | 1 | 1:70 | 11 | 0.1-0.47 | 16 | – | 35
ZS 1032 | Parallel | 20 | 400 | 30 | 1 | 1:70 | 11 | 0.1-0.47 | 17 | 17 | 43
ZS 261816 | Parallel | 15 | 250 | 10 | 0.5 | 1:65 | 39 | 0.1-0.22 | 18 | 16 | 26
ZS 1324-20V | Parallel | 24 | 400 | 20 | 0.8 | 1:50 | 50 | 0.1-0.33 | 13 | – | 24
ZS 1324-24V | Parallel | 24 | 400 | 20 | 0.8 | 1:54 | 35 | 0.1-0.33 | 13 | – | 24
ZS 1324-16V-4 | Parallel | 20 | 400 | 20 | 0.8 | 1:29 | 35 | 0.1-0.33 | 13 | – | 24
ZS 1624 | Parallel | 17 | 600 | 15 | 0.6 | 1:30 | 53 | 0.01-0.47 | 11 | 11 | 24
ZS 1052 S HT | Parallel / SMD | 11 | 300 | 10 | 0.5 | 1:36 | 20 | 0.047-0.22 | 9 | 8 | 18
STS 36 | Series | 25 | 600 | – | – | 1:44 | 33 | 0.47-1 | 35 | 46 | 53

* Also available in high temperature materials.

Technical features

• Function: produces initial ionization in Xenon flashlamps via short high‑voltage pulses.
• Triggering types: External triggering and Series (series injection) triggering.
• External triggering: HV pulse coupled via thin nickel wire or metal stripe; suited to compact and lower‑cost designs.
• Series triggering: higher timing precision and designed to handle very high lamp currents; used with liquid‑cooled laser lamps.
• Available part families: ZS series variants, STS 36, and SMD-compatible versions.
• Key electrical parameters per part: secondary voltage (kV), primary voltage (V), trigger energy (mWs), trigger power (W), transformer ratio, primary inductance (µH), recommended trigger capacitor range (CZ / µF).
• Physical dimensions provided per part: width, height, length in mm.
• High‑temperature material variants indicated where applicable.