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Diodes Incorporated SBL1635CT
- Part No.:
- SBL1635CT
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-220-3
- Datasheet:
-
SBL1635CT.pdf
- Description:
- DIODE ARR SCHOTT 35V 16A TO2203
- Quantity:
- Payment:
- Shipping:
Inventory:5,134
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Product details
Overview
SBL1635CT from Diodes Incorporated is a 35V, 16A dual common-cathode Schottky barrier rectifier in TO-220AB package, designed for low-voltage, high-frequency DC/DC conversion, freewheeling, and polarity protection circuits. It delivers 0.70V forward voltage at 8.0A and 25°C, supports 250A non-repetitive surge current, and exhibits 700pF typical junction capacitance.
For engineers reviewing the SBL1635CT datasheet, SBL1635CT pinout, SBL1635CT application, or SBL1635CT equivalent, key selection criteria include its 35V reverse blocking rating, thermal resistance of 3.5°C/W (junction-to-case), low forward voltage drop, TO-220AB mechanical compatibility, and suitability for 60Hz inductive load rectification with derating guidance.
Technical Context
This dual common-cathode Schottky rectifier integrates two independent anode terminals (Pins 1 and 3) sharing a single cathode (Pin 2), enabling synchronous or interleaved operation in dual-phase topologies. Its guard ring die construction enhances transient robustness without external TVS components.
The device operates across –65°C to +150°C junction temperature range and requires heatsink mounting to sustain 16A average output current - derated linearly above 95°C case temperature per Figure 1. Junction capacitance (700pF at 4V, 1MHz) and low VF support high-efficiency switching in <100kHz power stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 35 V - Maximum repetitive reverse voltage before breakdown; sets upper limit for DC bus or flyback clamp voltage rating. |
| IO | 16 A @ TC = 95°C - Continuous average forward current capability when mounted on heatsink; defines minimum heatsink requirement. |
| VFM | 0.70 V @ IF = 8.0A, 25°C - Low conduction loss enables >92% efficiency in 5–12V output converters. |
| IFSM | 250 A (8.3ms half-sine) - Withstands inrush and short-circuit transients without failure in motor drive or UPS applications. |
| RθJC | 3.5 °C/W - Enables thermal design with known junction-to-heatsink delta-T; critical for reliability under sustained load. |
| Cj | 700 pF @ 4V, 1MHz - Limits high-frequency switching noise and EMI in SMPS snubberless designs. |
Pinout & Package
Package: TO-220AB, molded plastic case (UL 94V-0), tin-plated copper leads, 2.24g mass, polarity marked on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode 1 | Independent input path for first rectifier leg; electrically isolated from Pin 3. |
| Pin 2 | Cathode (Common) | Shared output node for both diodes; must be connected to system ground or return rail. |
| Pin 3 | Anode 2 | Independent input path for second rectifier leg; electrically isolated from Pin 1. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Improves ESD and transient immunity without external protection components. |
| Low forward voltage drop | Reduces conduction loss by ≥30% vs. standard PN rectifiers at same current level. |
| High surge current rating | Supports direct connection to 120/240VAC inputs with minimal inrush limiting. |
| TO-220AB mechanical standardization | Enables drop-in replacement in legacy PCB footprints and heatsink mounts. |
Applications
| DC/DC Converter Output Stage | Automotive Power Supply Protection |
|---|---|
Use Scenario: Secondary-side synchronous rectification in 12V-to-5V/3.3V buck converters for infotainment systems. IC Role / Device Role / Timing Role: Dual-anode configuration allows independent control of two output phases, reducing ripple and improving cross-regulation. Use Value: 0.70V VF minimizes power loss at 8A load, enabling compact thermal design without forced air cooling. | Use Scenario: Reverse-polarity and load-dump protection in 24V truck battery management modules. IC Role / Device Role / Timing Role: Common-cathode topology simplifies connection to centralized ground plane while isolating positive rails. Use Value: 250A IFSM withstands ISO 7637-2 Pulse 5a transients without degradation. |
| Industrial Motor Freewheeling | LED Driver Polarity Guard |
Use Scenario: Flyback diode across 24V DC solenoid valves in PLC I/O modules. IC Role / Device Role / Timing Role: Dual-anode layout permits redundant or parallel paths for enhanced reliability in safety-critical actuators. Use Value: 3.5°C/W RθJC ensures stable operation at 16A peak current during valve hold phase. | Use Scenario: Input polarity protection for constant-current LED drivers in streetlight controllers. IC Role / Device Role / Timing Role: Cathode tied to driver IC ground; anodes accept either polarity input, preventing damage during field wiring errors. Use Value: 35V VRRM covers 24V nominal systems with 30% tolerance margin for line surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-16CTH03-M3 | Same 35V VRRM, but 0.68V VF at 8A and 3.0°C/W RθJC; TO-220AC package (single leadframe). | Lower thermal resistance enables higher ambient operation without larger heatsink; not dual-anode - requires separate devices for two-leg designs. | Select when optimizing thermal margin over dual-path integration. |
| ON Semiconductor MBR1635CT | Identical pinout and electrical specs; 0.72V VF at 8A, 3.7°C/W RθJC; RoHS-compliant, same TO-220AB footprint. | Drop-in replacement with minor VF and thermal trade-offs; validated in automotive-grade production. | Select when supply chain diversification or AEC-Q101 qualification is required. |
Compared with VS-16CTH03-M3 and MBR1635CT, the SBL1635CT offers balanced performance: its dual-anode TO-220AB layout saves board space in dual-rail systems, while its 0.70V VF and 3.5°C/W thermal resistance provide a practical compromise between efficiency and thermal manageability in industrial power supplies.
Availability
SBL1635CT is available at Aetrix Electronics and suitable for DC/DC converter output stages, automotive power supply protection, and industrial motor freewheeling requiring stable component supply and long-term manufacturing continuity.
Supply support for SBL1635CT 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design centers across Asia and manufacturing in China, Taiwan, and the U.S.
The SBL16xxCT series belongs to Diodes' high-current Schottky rectifier product line, engineered specifically for efficiency-critical, low-voltage (<60V) power conversion in industrial, computing, and automotive auxiliary systems.
FAQ
Is SBL1635CT suitable for surface-mount assembly?
No. The SBL1635CT uses a through-hole TO-220AB package with three gull-wing leads intended for wave soldering or hand-soldering to plated-through holes. Its 2.24g mass and thermal design require mechanical mounting to a heatsink, making it incompatible with standard SMT reflow profiles or pad layouts.
What is the maximum allowable case temperature for continuous 16A operation?
The datasheet specifies 16A average forward current only at TC = 95°C. Operation above this temperature requires linear derating per Figure 1 - e.g., at 110°C case temperature, maximum sustainable current drops to approximately 12.5A. Exceeding 150°C junction temperature risks permanent parametric shift or failure.
Does SBL1635CT have avalanche rating or ruggedness specification?
No. As a Schottky rectifier, the SBL1635CT lacks controlled avalanche capability. Its guard ring die improves transient immunity, but it is not rated for repetitive avalanche energy. For circuits subject to inductive switching stress, external clamping or snubbing remains necessary.
Can Pin 1 and Pin 3 be paralleled to increase current capacity?
No. Pins 1 and 3 are electrically isolated anodes sharing only the common cathode (Pin 2). Paralleling them would short the input sources unless externally isolated. They are intended for independent circuit paths - e.g., dual-phase outputs or redundant inputs - not current stacking.
SBL1635CT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Obsolete
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 35 V
- Current - Average Rectified (Io) (per Diode):
- 16A
- Voltage - Forward (Vf) (Max) @ If:
- 550 mV @ 8 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 35 V
- Operating Temperature - Junction:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220-3
SBL1635CT FAQ
1.How can I place an order for SBL1635CT through Aetrix?
Please submit a Request for Quotation (RFQ) for SBL1635CT 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 SBL1635CT reliable?
The price and inventory of SBL1635CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBL1635CT is usually 5 days.
3.What payment methods are accepted for SBL1635CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBL1635CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBL1635CT?
SBL1635CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBL1635CT 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 SBL1635CT?
For technical support, including SBL1635CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBL1635CT requirements.
6.How does Aetrix verify that SBL1635CT is sourced from the original manufacturer or authorized distributors?
All SBL1635CT 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 SBL1635CT meets industry standards.
7.What is the process for return or replacement of SBL1635CT?
All SBL1635CT units undergo pre-shipment inspection (PSI). If there is an issue with SBL1635CT, 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 SBL1635CT part is unused and in its original packaging.
Return procedure for SBL1635CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SBL1635CT Tags
-
BAV99-7-F
Diodes Incorporated
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BAT54S-7-F
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BAV99LT1G
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BAT54S,215
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