ELM5964-4PST
| Part Number | ELM5964-4PST |
|---|---|
| Manufacturer | Eudyna Devices / Sumitomo Electric |
| Category | Discrete Semiconductor Products / RF & Microwave Components > GaAs Power FETs / Modules |
| Description | 4-Watt C-Band Internally Matched Power GaAs FET Module, 5.9 GHz to 6.4 GHz Frequency Range, Hermetically Sealed Surface Mount / Flange Package. |
| Stock Status | In Stock |
| Origin | Original Factory |
Product Overview
The ELM5964‑4PST is an internally‑matched C‑Band GaAs N‑channel depletion‑mode JFET power module from Eudyna (Sumitomo Electric). Optimized for 5.9‑6.4 GHz SATCOM uplink and microwave backhaul. It provides 4 W (+36 dBm) P1dB output power and high PAE. Built‑in 50‑Ohm input‑output matching removes external matching circuits and shortens PCB design cycle. Hermetic PST flange package delivers good heat dissipation for reliable CW RF operation.
Core Advantages
50‑Ohm Internally Matched Ports
Pre‑matched 50‑Ω I/O for 5.9‑6.4 GHz, direct connection to standard RF transmission lines, reduces peripheral matching components and PCB space.
High Output Power & Linear Gain
4 W (+36 dBm) P1dB output power, typical gain 11.5 dB, suitable for SATCOM transmitter driver and output amplifier stages.
Low Intermodulation Distortion (IM3)
Optimized GaAs JFET process achieves low IM3 distortion, preserves signal quality for complex digital‑modulation signals.
Hermetic Package & Good Thermal Performance
Low‑thermal‑resistance hermetic PST flange package, stable performance under long‑term continuous‑wave working condition.
Key Specifications
| Brand | Eudyna Devices / Sumitomo Electric |
|---|---|
| RoHS Status | Non-RoHS (Hermetic legacy RF module) |
| EDA / CAD | PCB Footprint & 3D Model Available upon Request |
| Warranty | 1-Year Standard Quality Warranty |
| Package / Case | Hermetic RF Flange Power Package |
| Mounting Type | Surface Mount / Flange Bolt-Mount |
| Surface Marking / Silkscreen | 5964-4PST |
| Operating Frequency Range | 5.9 GHz to 6.4 GHz (C-Band SATCOM) |
| Output Power at 1dB Compression (P1dB) | 4.0 W / +36.0 dBm (Typical) |
| Power Gain (G1dB) | > 9.5 dB (Typical 11.5 dB) |
| Power-Added Efficiency (PAE) | Typical 37% |
| Drain-Source Voltage (VDS) | 10 V (Operating), 15 V (Absolute Maximum Rating) |
| Gate-Source Voltage (VGS) | -5 V to 0 V |
| Maximum Drain Current (ID) | 1.3 A |
| ESD Rating | Class 3 (2000–8000 V) |
| Moisture Sensitivity Level (MSL) | Level 3 (4 weeks floor life after opening) |
| Cleaning Restriction | Prohibit cleaning with any liquid (deionized water or solvent) |
| Junction & Storage Temperature | Storage: -65°C ~ +175°C; Max Junction Temperature +175°C |
Typical Applications
- C-Band Satellite Earth Station Transmitters and High Power Amplifiers (HPA)
- SATCOM Uplink Power Amplifiers and VSAT Communication Terminals
- Point-to-Point Microwave Digital Radio Backhaul Systems
- RF Test & Measurement Equipment and Microwave Signal Generators
Order & Shipping Info
| Minimum Order Quantity (MOQ) | 1 Piece |
|---|---|
| Shipping Time | Shipped within 1-2 business days |
| Delivery Time | 3-7 working days worldwide |
| Shipping Methods | DHL, UPS, FedEx, EMS |
| Payment Methods | T/T (Bank Transfer), PayPal, Credit Card, Western Union |
Technical Support
For datasheet, sample requests, stock check, or bulk pricing, please use the Quick Inquiry form. We will reply within 24 hours.
Frequently Asked Questions
Q1: What is the operating frequency range of ELM5964‑4PST?
A: 5.9 GHz‑6.4 GHz C‑Band, designed for SATCOM uplink applications.
Q2: Are external 50‑ohm matching circuits required?
A: No. Input / output ports are internally pre‑matched to 50Ω, connect directly to standard 50‑Ω RF traces.
Q3: What thermal rules must be observed?
A: Bolt flange tightly to low‑thermal‑resistance heatsink. Insufficient cooling will cause over‑temperature and permanent device damage.
Q4: What is the correct power‑up sequence for this GaAs FET?
A: Apply negative VGS gate voltage first, then VDS drain voltage. Reverse sequence will instantly destroy the chip.
Q5: Difference between ELM5964‑4PST and ELM5964‑4PST‑T?
A: Electrical performance is identical. ‑T = Tape & Reel; no ‑T suffix = tray packing, package mechanics are the same.
Q6: Is there a direct pin‑to‑pin drop‑in replacement?
A: No full pin‑compatible substitute. Alternative C‑Band 4 W GaAs modules are available, but RF matching retuning is mandatory.
Q7: Is ELM5964‑4PST a GaN device?
A: No. It is a GaAs N‑channel depletion‑mode JFET. Many online sources incorrectly label it as GaN; refer to original datasheet.
Q8: What does the PST suffix mean?
A: PST stands for hermetic flange bolt‑mount RF power package. Different suffixes mean different mechanical outlines, cannot swap without mechanical modification.
Q9: Can liquid cleaning be used on this component?
A: Liquid cleaning is strictly forbidden, including DI‑water and solvent. It will damage hermetic sealing and internal RF structures.
Q10: How can I get datasheet and S‑parameter files?
A: Submit quick inquiry, we will send official datasheet, S‑parameter curves, stock status and volume quotation.

