Infineon Technologies BG3123E6327HTSA1
- Part No.:
- BG3123E6327HTSA1
- Manufacturer:
- Infineon Technologies
- Category:
- Single FETs, MOSFETs
- Package:
- 6-VSSOP, SC-88, SOT-363
- Datasheet:
-
BG3123E6327HTSA1.pdf
- Description:
- RF MOSFET 5V SOT363
- Quantity:
- Payment:

- Shipping:

Inventory:6,378
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BG3123E6327HTSA1 from Infineon Technologies is a dual N-channel MOSFET tetrode designed for UHF/VHF tuner front-ends in analog TV receivers (NTSC/PAL), featuring two gain-controlled amplifier stages (A and B), integrated gate protection diodes, 1.4–1.8 dB noise figure at 45–800 MHz, and AEC-Q101 qualification for automotive tuner modules.
For engineers reviewing the BG3123E6327HTSA1 datasheet, BG3123E6327HTSA1 pinout, BG3123E6327HTSA1 application, or BG3123E6327HTSA1 equivalent, key selection criteria include VHF/UHF dual-stage AGC performance, cross-modulation suppression at 90–104 dB, gfs of 25–30 mS, and SOT363 package compatibility with high-density tuner PCB layouts.
Technical Context
This device implements a dual-gate, dual-amplifier architecture where Gate 1 (G1) controls gain for each channel independently, while Gate 2 (G2) serves as the common RF input bias node. Amplifier A targets VHF (45 MHz), achieving 32 dB power gain and 1.4 dB noise figure; Amplifier B targets UHF (800 MHz), delivering 24 dB gain and 1.8 dB noise figure.
It operates with DC supply voltages up to 8 V, supports AGC range >45 dB, and integrates ESD protection diodes on both gates per AEC-Q101 requirements. Thermal resistance Rth(ch-s) ≤ 150 K/W enables stable operation at Tch = 150°C under continuous 200 mW dissipation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 8 V - Maximum drain-source voltage compatible with low-voltage tuner supply rails |
| ID (Amp A/B) | 25 / 20 mA - Continuous drain current enabling stable small-signal amplification without thermal runaway |
| gfs (Amp A/B) | 30 / 25 mS - Forward transconductance ensuring high gain control linearity across AGC range |
| F (45/800 MHz) | 1.4 / 1.8 dB - Low noise figure critical for maintaining SNR in weak-signal terrestrial broadcast reception |
| Gp (45/800 MHz) | 32 / 24 dB - Power gain sufficient for single-stage VHF/UHF preamplification before mixer stage |
| ∆Gp | 45 dB - Gain control range supporting wide dynamic input signal variation in analog TV tuners |
| Xmod (AGC = 40 dB) | 91–104 dB - Cross-modulation suppression meeting PAL/NTSC broadcast linearity requirements |
Pinout & Package
Package: SOT363 - 6-pin ultra-small surface-mount package with 0.65 mm pitch, optimized for high-frequency layout integrity and thermal dissipation in tuner modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (G1*) | Amplifier A Gate 1 | Primary gain control terminal for VHF amplifier stage; referenced to source (Pin 5) |
| 2 (G2) | Common Gate 2 | RF input bias node shared by both amplifiers; sets operating point for RF signal injection |
| 3 (D*) | Amplifier A Drain | RF output node for VHF amplifier; requires impedance-matched trace to mixer input |
| 4 (D**) | Amplifier B Drain | RF output node for UHF amplifier; isolated routing required to prevent coupling with Amp A |
| 5 (S) | Source | Common source terminal for both amplifiers; must be low-inductance ground connection |
| 6 (G1**) | Amplifier B Gate 1 | Independent gain control terminal for UHF amplifier stage; decoupled from G1* by layout |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent gain control | Separate G1* (Pin 1) and G1** (Pin 6) enable simultaneous but independent AGC adjustment for VHF and UHF bands |
| Integrated gate protection diodes | On-chip ESD protection meets HBM ≥2 kV, eliminating need for external TVS on gate lines in tuner PCBs |
| AEC-Q101 qualified | Validated for automotive tuner applications including temperature cycling, mechanical shock, and humidity testing |
| Optimized for NTSC/PAL systems | Specified performance at 45 MHz (VHF) and 800 MHz (UHF) matches legacy analog broadcast channel spacing and bandwidth |
Applications
| Analog TV Tuner Front-End | Automotive Broadcast Receiver |
|---|---|
Use Scenario: Signal amplification in terrestrial analog TV tuner modules receiving PAL-B/G or NTSC-M broadcasts. IC Role / Device Role / Timing Role: Dual-band RF preamplifier providing gain-controlled VHF (Amp A) and UHF (Amp B) signal paths prior to mixer stage. Use Value: 90–104 dB cross-modulation suppression ensures minimal adjacent-channel interference in dense urban RF environments. | Use Scenario: Integrated tuner in automotive infotainment head units supporting analog TV reception during vehicle stoppages. IC Role / Device Role / Timing Role: AEC-Q101-qualified RF amplifier enabling reliable operation across -40°C to +105°C ambient conditions. Use Value: 1.4 dB noise figure at 45 MHz preserves weak-signal sensitivity required for mobile reception with short antennas. |
| Legacy Set-Top Box Tuner | Professional Video Monitoring Equipment |
Use Scenario: Cost-sensitive digital-to-analog converter boxes requiring backward compatibility with analog broadcast signals. IC Role / Device Role / Timing Role: Single-package dual-channel amplifier replacing discrete transistor pairs, reducing BOM count and layout area. Use Value: SOT363 footprint allows direct drop-in replacement of older SOT23-6 or SC70-6 tuner ICs without board redesign. | Use Scenario: Field test equipment capturing analog video signals for broadcast quality analysis and compliance verification. IC Role / Device Role / Timing Role: High-linearity RF amplifier stage ensuring accurate signal fidelity during spectrum and distortion measurements. Use Value: 45 dB AGC range enables consistent signal level maintenance across varying field strength conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-gate MOSFET amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BG3123R | Identical die, same SOT363 package, identical pinout (1=G1*, 2=G2, 3=D*, 4=D**, 5=S, 6=G1**) | No functional difference; marked variant for tape orientation (180° rotated loading) | Select when matching specific reel handling requirements in automated SMT lines |
| BF998 | Single dual-gate MOSFET (not dual-channel); gfs = 22 mS typ, F = 1.5 dB @ 45 MHz, no AEC-Q101 qualification | Requires two devices for VHF+UHF coverage; lacks integrated gate protection diodes | Consider only for non-automotive, cost-constrained designs where dual-device layout is acceptable |
Compared with BG3123R, the BG3123E6327HTSA1 offers identical electrical performance but with standardized tape orientation; versus BF998, it delivers true dual-channel integration, AEC-Q101 reliability, and reduced system-level component count.
Availability
BG3123E6327HTSA1 is available at Aetrix Electronics and suitable for analog TV tuner front-ends, automotive broadcast receivers, and legacy set-top box designs requiring stable component supply with long-term lifecycle support.
Supply support for BG3123E6327HTSA1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Infineon Technologies is a German semiconductor manufacturer specializing in power management, RF, and automotive electronics, with global manufacturing and quality certification to ISO/TS 16949.
The BG3123 belongs to Infineon's RF Small-Signal Transistor product line, engineered specifically for high-linearity, low-noise amplification in analog broadcast tuner applications across consumer and automotive markets.
FAQ
What is the maximum operating frequency for each amplifier stage?
Amplifier A (VHF) is characterized up to 45 MHz with 32 dB gain and 1.4 dB noise figure; Amplifier B (UHF) is specified at 800 MHz with 24 dB gain and 1.8 dB noise figure. Both stages maintain usable gain and linearity beyond these frequencies, but datasheet validation is limited to these points.
How does the dual-gate architecture improve AGC performance compared to single-gate MOSFETs?
The separate G1* and G1** terminals allow independent gain control of VHF and UHF paths without interaction, enabling precise multi-band AGC tracking. This eliminates intermodulation between bands and maintains flat group delay across 45–800 MHz, unlike cascaded single-gate solutions.
Is external gate protection required despite the integrated diodes?
No external gate protection is required. The integrated ESD diodes meet HBM ≥2 kV and provide sufficient protection for standard tuner assembly and operation. However, handling precautions per JEDEC JS-001 must still be observed during PCB assembly.
Can BG3123E6327HTSA1 replace BG3123 in existing designs?
Yes - BG3123E6327HTSA1 is a fully compatible, RoHS-compliant, AEC-Q101-qualified version of the original BG3123. Pinout, electrical specs, and thermal behavior are identical; only packaging and marking differ (E6327HTSA1 denotes tape-and-reel with standardized orientation).
BG3123E6327HTSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 6-VSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- MOSFET (Metal Oxide)
- Configuration:
- 2 N-Channel (Dual)
- Frequency:
- 800MHz
- Gain:
- 25dB
- Voltage - Test:
- 5 V
- Current Rating (Amps):
- 25mA, 20mA
- Noise Figure:
- 1.8dB
- Current - Test:
- 14 mA
- Power - Output:
- -
- Voltage - Rated:
- 8 V
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-SOT363-PO
BG3123E6327HTSA1 FAQ
1.How can I place an order for BG3123E6327HTSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for BG3123E6327HTSA1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for BG3123E6327HTSA1 reliable?
The price and inventory of BG3123E6327HTSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BG3123E6327HTSA1 is usually 5 days.
3.What payment methods are accepted for BG3123E6327HTSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BG3123E6327HTSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BG3123E6327HTSA1?
BG3123E6327HTSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BG3123E6327HTSA1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for BG3123E6327HTSA1?
For technical support, including BG3123E6327HTSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BG3123E6327HTSA1 requirements.
6.How does Aetrix verify that BG3123E6327HTSA1 is sourced from the original manufacturer or authorized distributors?
All BG3123E6327HTSA1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that BG3123E6327HTSA1 meets industry standards.
7.What is the process for return or replacement of BG3123E6327HTSA1?
All BG3123E6327HTSA1 units undergo pre-shipment inspection (PSI). If there is an issue with BG3123E6327HTSA1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The BG3123E6327HTSA1 part is unused and in its original packaging.
Return procedure for BG3123E6327HTSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BG3123E6327HTSA1 Tags

-
3SK294(TE85L,F)
Toshiba Semiconductor and Storage
-
SAV-551+
Mini-Circuits

-
TAV2-501+
Mini-Circuits

-
CE3514M4-C2
CEL

-
AFT05MS004NT1
NXP USA Inc.
-
SAV-541+
Mini-Circuits

-
CE3512K2-C1
CEL

-
AFM907NT1
NXP USA Inc.

-
SKY65050-372LF
Skyworks Solutions Inc.

-
CE3520K3-C1
CEL

-
AFT09MS007NT1
NXP USA Inc.

-
AFT09MS015NT1
NXP USA Inc.
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…

