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NLV32T-680J-PF
TDK Corporation
FIXED IND 68UH 50MA 9 OHM SMD
41468 Pcs New Original In Stock
68 µH Unshielded Drum Core, Wirewound Inductor 50 mA 9Ohm Max 1210 (3225 Metric)
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5.0 / 5.0
- (466 Ratings)
NLV32T-680J-PF
Product Overview
6675844
DiGi Electronics Part Number
NLV32T-680J-PF-DGManufacturer
TDK Corporation
NLV32T-680J-PF
Description
FIXED IND 68UH 50MA 9 OHM SMDInventory
41468 Pcs New Original In Stock
68 µH Unshielded Drum Core, Wirewound Inductor 50 mA 9Ohm Max 1210 (3225 Metric)
Quantity
Minimum 1
Minimum 1
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NLV32T-680J-PF Technical Specifications
Category
Fixed Inductors
Packaging
Tape & Reel (TR)
Series
NLV-PF
Product Status
Not For New Designs
Type
Drum Core, Wirewound
Material - Core
Ferrite
Inductance
68 µH
Tolerance
±5%
Current Rating (Amps)
50 mA
Current - Saturation (Isat)
-
Shielding
Unshielded
DC Resistance (DCR)
9Ohm Max
Q @ Freq
30 @ 2.52MHz
Frequency - Self Resonant
12MHz
Ratings
-
Operating Temperature
-40°C ~ 105°C
Inductance Frequency - Test
2.52 MHz
Mounting Type
Surface Mount
Package / Case
1210 (3225 Metric)
Supplier Device Package
1210
Size / Dimension
0.126" L x 0.098" W (3.20mm x 2.50mm)
Height - Seated (Max)
0.094" (2.40mm)
Datasheet & Documents
HTML Datasheet
NLV32T-680J-PF-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Affected
ECCN
EAR99
HTSUS
8504.50.8000
Additional Information
Other Names
445-1528-6
NLV32T680JPF
-NLV32T-680J
445-1528-1
445-1528-2
Standard Package
2,000
Alternative Parts
View DetailsPART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
他們的員工培訓得很好，服務過程中都非常專業且有耐心。
Dec 02, 2025
Très satisfaite de la rapidité de la livraison et de leur assistance.
Dec 02, 2025
Their pricing advantage makes DiGi Electronics my go-to choice for electronics needs.
Dec 02, 2025
Their customer service quality makes dealing with them a pleasant experience.
Dec 02, 2025
The after-sales team is proactive and attentive to customer needs.
Dec 02, 2025
The warmth and professionalism of their customer service staff really stand out.
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Frequently Asked Questions (FAQ)
Is the NLV32T-680J-PF inductor suitable for use in a high-density buck converter operating at 3 MHz with a peak current of 45 mA, and what are the risks of using an unshielded drum core in this application?
The NLV32T-680J-PF is not recommended for a 3 MHz buck converter due to its self-resonant frequency of 12 MHz and inductance tested at only 2.52 MHz—operation near or above 3 MHz risks significant inductance drop and increased core losses. Additionally, its unshielded drum core design makes it susceptible to electromagnetic interference (EMI), which can couple into adjacent circuits in high-density layouts. For high-frequency switching above 2 MHz, consider shielded alternatives like the B82422T1683J000 or newer TDK NLCV series with integrated shielding and higher SRF ratings to avoid stability and noise issues.
Can I replace the NLV32T-680J-PF with the NLV32T-680J-EF in an existing medical device design without requalification, and what are the key differences that might affect long-term reliability?
While the NLV32T-680J-EF has identical electrical specs (68 µH, 50 mA, 9 Ω DCR) and package size, it uses a different internal construction and may have variations in high-frequency performance and thermal aging characteristics. The 'EF' variant is RoHS-compliant but may differ in moisture sensitivity or solderability profile despite both being MSL 1. Because this is a medical device, even minor process changes can impact long-term reliability under thermal cycling or humidity exposure. We recommend conducting a drop-in test under worst-case load and temperature conditions and reviewing TDK’s PCN history before proceeding without requalification.
What are the thermal risks of using the NLV32T-680J-PF in an ambient temperature of 95°C when driving 50 mA continuously, given its 105°C max rating and lack of saturation current specification?
Although the NLV32T-680J-PF is rated for operation up to 105°C, running at 95°C ambient with 50 mA (its full rated current) leaves minimal thermal margin. With a DCR of 9 Ω max, power dissipation reaches ~22.5 mW, which may cause localized heating that pushes the internal ferrite core closer to its Curie temperature, risking inductance drift or irreversible permeability loss. Additionally, without a specified Isat, core saturation under transient loads is unpredictable. For high-temperature applications, derate current by at least 30% or select a part with defined saturation characteristics, such as the shielded B82422T1683J000, which includes thermal and saturation data for robust design-in.
How does the unshielded construction of the NLV32T-680J-PF impact PCB layout in a mixed-signal design with sensitive analog front-end components located within 5 mm?
The unshielded drum core in the NLV32T-680J-PF generates a significant external magnetic field, which can induce noise in nearby high-impedance analog traces or components—especially problematic in mixed-signal systems. Placing sensitive circuits within 5 mm risks coupling of switching noise, leading to SNR degradation or offset errors. To mitigate this, maintain a minimum 10 mm clearance, orient the inductor perpendicular to analog signal paths, or use a grounded copper pour with via fencing. However, for compact designs, replacing it with a shielded inductor like the B82422T1683J000 is strongly advised to eliminate field leakage and ensure signal integrity.
Why is the NLV32T-680J-PF marked 'Not For New Designs,' and what should I consider when evaluating a drop-in replacement for a legacy industrial control board still in production?
The 'Not For New Designs' status indicates TDK has discontinued development support and may phase out the NLV32T-680J-PF, risking future supply chain disruptions. While substitutes like the NLV32T-680J-EF or B82422T1683J000 exist, they may have subtle differences in footprint tolerance, solder joint reliability, or high-frequency Q-factor. For legacy industrial systems, conduct a full compatibility assessment including thermal cycling, vibration resistance, and long-term bias testing. Also verify reel packaging compatibility if using automated assembly. Proactively qualify a second-source shielded alternative to avoid last-time buy scenarios and ensure continuity of supply.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
NLV32T-680J-PF CAD Models
TDK Corporation NLV32T-680J-PF PCB symbols & footprints
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