F1977NBGI IDT Attenuator or Isolator (Quad Flat No-Lead) In Stock
The IDT F1977 Digital-Step-Attenuator featuring Glitch-Free™ technology improves system reliability and settling time. It has an attenuation range of 31.75 dB with excellent accuracy and very low distortion and insertion loss.
- Manufacturer
- IDT
- Package
- Quad Flat No-Lead
- Pin Count
- 33
- Lifecycle
- ACTIVE
- Datasheet
- F1977NBGI Datasheet PDF
- Category
- Attenuator or Isolator
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of F1977NBGI?
- Attenuator or Isolator from IDT for production electronic assemblies
- Quad Flat No-Lead package with 33 pins for PCB footprint planning
- Manufacturer or distributor datasheet URL available for technical verification
- Suitable for embedded systems, industrial electronics, communication equipment applications
What is F1977NBGI used for?
F1977NBGI is commonly used in embedded systems, industrial electronics, communication equipment, test fixtures, and production BOM sourcing where designers need dependable attenuator or isolator behavior and manufacturer-traceable sourcing. It is appropriate for production BOM builds, repair demand, and alternate qualification workflows that compare package fit, lifecycle status, and parameters such as 33 pins.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
What are equivalent replacements for F1977NBGI?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
Which designs are a good fit for F1977NBGI with 33 pins?
F1977NBGI fits industrial, embedded, and repair-oriented electronic assemblies when the design needs 33 pins and 33-pin Quad Flat No-Lead. It is a practical choice when the BOM also matches the 33-pin Quad Flat No-Lead footprint.
How should engineers check package compatibility for F1977NBGI?
Compare the PCB land pattern, height allowance, and assembly process against the 33-pin Quad Flat No-Lead style. The 33 pins detail is the first check before approving a replacement.
What matters when sourcing F1977NBGI as a replacement?
Confirm the same 33 pins, 33-pin Quad Flat No-Lead, manufacturer traceability, and lifecycle status before substituting it. Buyers should also verify stock for the exact 33-pin Quad Flat No-Lead configuration.
Related Guides
CDSOT23-SM712 RS-485 Interface Protection Design Guide
Design robust RS-485 protection with CDSOT23-SM712 using correct clamping, placement, grounding, termination, and surge coordination.
Jul 17, 2026
CR0805-FX-10R0ELF 10 Ohm 0805 Resistor Design Guide
Design CR0805-FX-10R0ELF into 0805 circuits with practical power, pulse, thermal, layout, tolerance, and sourcing checks.
Jul 17, 2026
How to Choose Würth Elektronik 150141-Series SMD Indicator LEDs
Choose 150141RS73100 and related Würth 150141 LEDs by color, brightness, 3528 package fit, drive margin, and procurement controls.
Jul 15, 2026
Molex 53398-0371 Selection Guide: Choosing a 3-Circuit Wire-to-Board Header
Choose Molex 53398-0371 by circuit count, mating system, derating, PCB geometry, assembly needs, and exact-suffix sourcing.
Jul 15, 2026
Why Buy from FindMyChip
About IDT
IDT is a leading electronic component manufacturer. FindMyChip sources IDT ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“FindMyChip sourced our entire STM32 BOM in 48 hours when our usual distributor had 16-week lead times.”
You May Also Like
EXB-24AT6AR5X
Panasonic
Attenuator or Isolator
PAT1220-C-1DB-T5
Susumu
Attenuator or Isolator
IL717E
NVE
Attenuator or Isolator
HCPL-7520-300E
Avago Technologies
Attenuator or Isolator
ACPL-827-000E
Avago Technologies
Attenuator or Isolator
Si8661BD-B-IS
Silicon Labs
Attenuator or Isolator
Si8661BC-B-IS1
Silicon Labs
Attenuator or Isolator
Si8660BB-B-IS1R
Silicon Labs
Attenuator or Isolator
Si8630BB-B-IS1
Silicon Labs
Attenuator or Isolator
Si8605AD-B-IS
Silicon Labs
Attenuator or Isolator
Si8631AB-B-IS1
Silicon Labs
Attenuator or Isolator
Si8663BD-B-IS
Silicon Labs
Attenuator or Isolator
6N137(F)
Toshiba
Attenuator or Isolator
ILQ615-2
Vishay
Attenuator or Isolator
IL217AT
Vishay
Attenuator or Isolator
EXB-24AB2CR8X
Panasonic
Attenuator or Isolator
HMC425A
Analog Devices
Attenuator or Isolator
ADUM5201CRWZ-RL
Analog Devices
Attenuator or Isolator
MAX14931DASE+
Analog Devices
Attenuator or Isolator
ADUM5241ARZ-RL7
Analog Devices
Attenuator or Isolator
ADRF5721BCCZN
Analog Devices
Attenuator or Isolator
HMC540SLP3ETR
Analog Devices
Attenuator or Isolator
HMC656LP2ETR
Analog Devices
Attenuator or Isolator
ADRF5730BCCZN
Analog Devices
Attenuator or Isolator