My Inquiry
My Account
Vishay General Semiconductor - Diodes Division VS-12CWQ04FNTRLPBF
- Part No.:
- VS-12CWQ04FNTRLPBF
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Diode Arrays
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
VS-12CWQ04FNTRLPBF.pdf
- Description:
- DIODE ARRAY SCHOTTKY 40V 6A DPAK
- Quantity:
- Payment:
- Shipping:
Inventory:5,579
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
VS-12CWQ04FNTRLPBF from Vishay Semiconductors is a surface-mount, center-tap dual Schottky rectifier in D-PAK (TO-252AA) package, rated 40 V reverse voltage, 6 A average forward current per leg (12 A total), with 0.48 V forward voltage at 6 A and 125 °C junction temperature. It serves as a low-loss freewheeling or output rectifier in high-frequency DC/DC converters and battery protection circuits.
For engineers reviewing the VS-12CWQ04FNTRLPBF datasheet, VS-12CWQ04FNTRLPBF pinout, VS-12CWQ04FNTRLPBF application, or VS-12CWQ04FNTRLPBF equivalent, key selection criteria include its common-cathode dual-leg configuration, MSL Level 1 moisture sensitivity, 9 mJ non-repetitive avalanche energy per leg, and thermal resistance of 3.0 °C/W (per leg) for board-level thermal design validation.
Technical Context
This dual Schottky rectifier integrates two identical 40 V, 6 A legs sharing a common cathode terminal, enabling compact center-tap topology implementation without external wiring. Its low VF (0.48 V @ 6 A, 125 °C) and low junction capacitance (405 pF @ 5 V) support high-efficiency, high-switching-frequency operation up to several MHz.
The device uses guard ring technology for ruggedness and meets J-STD-020 MSL Level 1 (peak reflow 260 °C), with thermal resistance RthJC = 3.0 °C/W per leg and maximum junction temperature of +150 °C - enabling reliable operation under sustained 12 A DC conduction when properly heatsinked.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Package | D-PAK (TO-252AA): surface-mount outline with exposed thermal pad; enables direct PCB copper pour for thermal management. |
| VR (Max DC Reverse Voltage) | 40 V: defines maximum blocking capability per leg; suitable for 12–24 V input systems with margin. |
| IF(AV) per leg | 6 A: average forward current rating per anode leg at TC = 134 °C, 50 % duty cycle; supports 12 A total device output. |
| VF @ 6 A, 125 °C | 0.48 V: low conduction loss per leg reduces power dissipation and improves efficiency in high-current switching paths. |
| EAS per leg | 9 mJ: non-repetitive avalanche energy rating at TJ = 25 °C; provides robustness against inductive turn-off transients. |
| RthJC per leg | 3.0 °C/W: thermal resistance from junction to case; allows accurate thermal modeling when mounted on copper-filled pads. |
| IRM @ 125 °C | 40 mA: maximum reverse leakage per leg at max operating temperature; critical for low-power standby and battery-reverse-protection integrity. |
Pinout & Package
D-PAK (TO-252AA) package with three terminals: Pin 1 (Anode 1), Pin 2 (Cathode – common), Pin 3 (Anode 2). Exposed thermal pad (Pin 4) is electrically connected to cathode and must be soldered to PCB ground/copper pour for thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode of Leg 1 | Connects to input/high-side node of first rectification path; requires trace width calculation for 6 A continuous current. |
| Pin 2 | Common Cathode | Shared output node for both legs; must be routed to low-impedance ground plane or output capacitor negative terminal. |
| Pin 3 | Anode of Leg 2 | Connects to input/high-side node of second rectification path; symmetrical layout recommended for balanced current sharing. |
| Exposed Pad | Thermal & Electrical Cathode Extension | Must be soldered to ≥2 cm² copper area; contributes significantly to RthJC and ensures mechanical reliability under thermal cycling. |
Key Features
| Feature | Design Value |
|---|---|
| Center-tap dual Schottky configuration | Enables single-package solution for center-tapped transformer secondary rectification or dual-input redundancy without discrete paralleling. |
| Guard ring construction | Improves long-term reliability under repetitive surge stress and prevents premature edge breakdown at high VR conditions. |
| MSL Level 1 rating | Allows standard SMT reflow without baking; compatible with automated assembly lines using peak temperatures up to 260 °C. |
| Low VF and low CT | 0.48 V forward drop and 405 pF junction capacitance jointly minimize conduction + switching losses in >100 kHz applications. |
| Common-cathode thermal symmetry | Identical die geometry and shared cathode metallization ensure matched thermal impedance and current sharing between legs. |
Applications
| Server Power Supply Output Rectification | Battery Charging Circuit Protection |
|---|---|
Use Scenario: High-density 12 V/48 V server PSU output stage using center-tapped transformer and synchronous rectification. IC Role / Device Role / Timing Role: Dual-leg Schottky rectifier providing low-VF, high-current output rectification with shared cathode return path. Use Value: Reduces conduction loss by 35 % vs. standard silicon diodes at 6 A, lowering thermal load on output capacitors and PCB traces. |
Use Scenario: Automotive-grade Li-ion battery charger with reverse-polarity input protection and OR-ing functionality. IC Role / Device Role / Timing Role: Common-cathode dual diode implementing reverse-battery blocking and input-source OR-ing with minimal voltage drop. Use Value: 0.48 V VF at 125 °C ensures <100 mV dropout during cold-cranking (–40 °C to +85 °C ambient), preserving charging enable logic. |
| DC/DC Converter Freewheeling Diode | Industrial Motor Drive Snubber Clamp |
Use Scenario: 200 kHz isolated flyback converter in industrial PLC power module requiring low-loss freewheeling path. IC Role / Device Role / Timing Role: Fast-recovery Schottky freewheeling diode handling discontinuous conduction mode (DCM) current spikes. Use Value: 405 pF junction capacitance limits reverse recovery ringing; 9 mJ EAS absorbs inductive kickback without clamping circuitry. |
Use Scenario: H-bridge motor driver with regenerative braking, where back-EMF must be safely recirculated during PWM off-time. IC Role / Device Role / Timing Role: Dual-leg clamp diode returning inductive energy to bus capacitors during active freewheeling phases. Use Value: Symmetrical 6 A per-leg rating supports bidirectional current flow; 150 °C TJ max enables operation in sealed enclosures at 70 °C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-12CWQ04FNPbF | Same die and package; tube packaging (no tape-and-reel), Pb-free but no RoHS suffix in marking. | Identical electrical and thermal specs; differs only in packaging format and reel orientation compliance. | Select when manual placement or low-volume prototyping eliminates need for automated pick-and-place compatibility. |
| ON Semiconductor MBRS340CT | 40 V, 3 A per leg (6 A total); TO-263 (D2PAK) package; VF = 0.55 V @ 3 A, 25 °C; no specified EAS rating. | Lower current rating and larger footprint; lacks avalanche energy spec and MSL Level 1 certification. | Acceptable for lower-power (<6 A) designs where thermal margin exists and reflow profile control is less stringent. |
Compared with VS-12CWQ04FNTRLPBF, the tube-packaged VS-12CWQ04FNPbF offers identical performance with simpler logistics, while MBRS340CT trades current capacity and ruggedness for cost in space-constrained but thermally forgiving applications.
Availability
VS-12CWQ04FNTRLPBF is available at Aetrix Electronics and suitable for server power supplies, battery charging systems, and industrial DC/DC converters requiring stable component supply, RoHS-compliant lead-free assembly, and validated thermal performance in high-reliability production.
Supply support for VS-12CWQ04FNTRLPBF 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
Vishay Intertechnology is a global semiconductor manufacturer specializing in discrete components, sensors, and passive elements, with leadership in power rectification, precision resistors, and optoelectronics.
The VS-12CWQ04FNTRLPBF belongs to Vishay's "Q" series of high-performance Schottky rectifiers, engineered for high-frequency, high-efficiency power conversion in computing, telecom, and industrial equipment where low VF and thermal robustness are critical.
FAQ
What is the maximum junction temperature rating for VS-12CWQ04FNTRLPBF?
The VS-12CWQ04FNTRLPBF has a maximum junction temperature (TJ max.) of +150 °C, verified per Vishay Document Number 94133. This rating enables operation in high-ambient environments such as enclosed power modules or automotive under-hood applications when thermal design adheres to RthJC = 3.0 °C/W per leg and proper PCB copper area is used. The VS-12CWQ04FNTRLPBF must not exceed this limit under steady-state or transient conditions.
Is VS-12CWQ04FNTRLPBF pin-compatible with other D-PAK dual Schottky rectifiers?
VS-12CWQ04FNTRLPBF uses the standard D-PAK (TO-252AA) outline with Pin 1 = Anode 1, Pin 2 = Common Cathode, Pin 3 = Anode 2, and exposed thermal pad tied to cathode. While footprint-compatible with most 3-pin D-PAK dual diodes, pin-to-pin equivalence requires verification of internal configuration - VS-12CWQ04FNTRLPBF is common-cathode, not common-anode. Always confirm schematic symbol polarity before substitution.
Does VS-12CWQ04FNTRLPBF support lead-free reflow assembly?
Yes, VS-12CWQ04FNTRLPBF is Pb-free and qualified for lead-free reflow per J-STD-020 MSL Level 1, with a maximum peak temperature of 260 °C. The "PbF" suffix confirms compliance, and the device withstands standard SAC305 profiles without degradation. No pre-baking is required prior to assembly, simplifying manufacturing for VS-12CWQ04FNTRLPBF integration.
What is the avalanche energy rating of VS-12CWQ04FNTRLPBF, and how is it applied in circuit design?
VS-12CWQ04FNTRLPBF is rated for 9 mJ non-repetitive avalanche energy per leg (EAS), measured at TJ = 25 °C with IAS = 1.5 A and L = 8 mH. This spec validates safe operation during inductive turn-off events - e.g., in flyback snubbers or motor drive freewheeling - without external clamping. Designers use this value to size transformer leakage inductance or verify worst-case transient energy absorption in the VS-12CWQ04FNTRLPBF.
How does the common-cathode configuration of VS-12CWQ04FNTRLPBF affect PCB layout?
The common-cathode configuration of VS-12CWQ04FNTRLPBF requires Pin 2 and the exposed thermal pad to be connected to the same low-impedance node - typically the output capacitor negative or system ground plane. This minimizes loop inductance for both legs and ensures balanced current sharing. Asymmetric trace lengths or separate grounding of the two anodes can cause thermal imbalance; VS-12CWQ04FNTRLPBF layout must maintain symmetrical copper pours and equal thermal vias under the pad.
VS-12CWQ04FNTRLPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- -
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io) (per Diode):
- 6A
- Voltage - Forward (Vf) (Max) @ If:
- 530 mV @ 6 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 3 mA @ 40 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252AA (DPAK)
VS-12CWQ04FNTRLPBF FAQ
1.How can I place an order for VS-12CWQ04FNTRLPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for VS-12CWQ04FNTRLPBF 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 VS-12CWQ04FNTRLPBF reliable?
The price and inventory of VS-12CWQ04FNTRLPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VS-12CWQ04FNTRLPBF is usually 5 days.
3.What payment methods are accepted for VS-12CWQ04FNTRLPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VS-12CWQ04FNTRLPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VS-12CWQ04FNTRLPBF?
VS-12CWQ04FNTRLPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VS-12CWQ04FNTRLPBF 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 VS-12CWQ04FNTRLPBF?
For technical support, including VS-12CWQ04FNTRLPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VS-12CWQ04FNTRLPBF requirements.
6.How does Aetrix verify that VS-12CWQ04FNTRLPBF is sourced from the original manufacturer or authorized distributors?
All VS-12CWQ04FNTRLPBF 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 VS-12CWQ04FNTRLPBF meets industry standards.
7.What is the process for return or replacement of VS-12CWQ04FNTRLPBF?
All VS-12CWQ04FNTRLPBF units undergo pre-shipment inspection (PSI). If there is an issue with VS-12CWQ04FNTRLPBF, 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 VS-12CWQ04FNTRLPBF part is unused and in its original packaging.
Return procedure for VS-12CWQ04FNTRLPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VS-12CWQ04FNTRLPBF Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
-
BAT54SLT1G
onsemi
-
BAV70LT1G
onsemi
-
BAT54CLT1G
onsemi
-
BAT54S-7-F
Diodes Incorporated
-
BAV99LT1G
onsemi
-
BAT54S,215
Nexperia USA Inc.
-
BAS40-04LT1G
onsemi
-
MMBD1503-TP
Micro Commercial Co
-
BAV99WT1G
onsemi
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
