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Diodes Incorporated PDS835L-13
- Part No.:
- PDS835L-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- PowerDI™ 5
- Datasheet:
-
PDS835L-13.pdf
- Description:
- DIODE SCHOTTKY 35V 8A POWERDI5
- Quantity:
- Payment:
- Shipping:
Inventory:13,514
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Product details
Overview
PDS835L-13 from Diodes Incorporated is an 8A, 35V low forward voltage Schottky barrier rectifier in POWERDI5 package, featuring 0.41V VF at 8A/125°C and 120A non-repetitive surge capability; used for polarity protection and freewheeling in DC-DC converters and automotive body control modules.
For engineers reviewing the PDS835L-13 datasheet, PDS835L-13 pinout, PDS835L-13 application, or PDS835L-13 equivalent, key selection criteria include thermal resistance (RθJS = 3.0°C/W), low VF stability over temperature, AEC-Q101 qualification, and PCB pad layout dependency on thermal performance.
Technical Context
This Schottky rectifier employs guard ring die construction to enhance transient voltage robustness and suppress avalanche-induced failure during inductive switching events. Its low VF design targets high-efficiency 12V–24V automotive and industrial power rails where conduction loss minimization is critical.
Thermal performance is highly dependent on PCB layout: RθJA varies from 45°C/W (large cathode pad) to 100°C/W (minimum FR-4 pad), with junction-to-solder-point resistance fixed at 3.0°C/W - enabling accurate thermal modeling when copper area and plating are specified.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 35 V - Maximum repetitive reverse voltage before breakdown; defines safe blocking range in 24V systems with transients. |
| IF(AV) | 8 A - Continuous average forward current at TA = +25°C with proper heatsinking; derates to ~4.5A at +100°C ambient. |
| VF @ 8A/25°C | 0.46 V - Forward voltage drop determining conduction loss (3.68W at 8A); lower than standard PN diodes by ~0.25V. |
| VF @ 8A/125°C | 0.41 V - Reduced VF at elevated temperature improves efficiency stability in under-hood automotive environments. |
| IFSM | 120 A - Non-repetitive peak surge current (8.3ms half-sine); supports motor startup and load dump survival. |
| RθJS | 3.0 °C/W - Junction-to-solder-point thermal resistance; enables direct thermal path modeling to PCB copper pour. |
| IR @ 35V/25°C | 0.05 mA - Low reverse leakage preserves battery standby current in always-on vehicle modules. |
Pinout & Package
Package: POWERDI5 - surface-mount, dual-terminal, thermally enhanced plastic case with exposed cathode pad; dimensions 4.0 × 6.5 × 1.1 mm (L×W×H); UL 94V-0 rated molding compound; matte tin-plated copper leadframe.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Left Pin | Anode | Connected to input/source side; requires small 2.7mm × 1.6mm copper pad per datasheet AP02001. |
| Right Pin | Cathode | Connected to output/load side; must be tied to large thermal pad (9.4mm × 7.2mm minimum) for RθJA = 65°C/W. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Improves ESD and transient immunity without external TVS; eliminates need for discrete clamping in 12V rail protection. |
| AEC-Q101 qualified | Validated for automotive under-hood operation (-40°C to +125°C TJ); supports PPAP documentation for Tier-1 suppliers. |
| Low VF drift over temperature | VF decreases from 0.46V to 0.41V as junction rises from 25°C to 125°C - reduces thermal runaway risk in parallel configurations. |
| Halogen & antimony free | Meets JEDEC J-STD-709B green standards (<900ppm Br/Cl, <1000ppm Sb); compliant with EU ELV and China RoHS. |
Applications
| Automotive Body Control Module | Industrial DC-DC Converter |
|---|---|
Use Scenario: Reverse polarity protection on 12V supply input to BCM microcontroller and CAN transceiver circuitry. IC Role / Device Role / Timing Role: Unidirectional blocking device placed in series with main power rail; conducts only during correct polarity. Use Value: Prevents catastrophic damage from battery misconnection; 0.41V VF at 125°C ensures minimal voltage drop during hot-cranking conditions. | Use Scenario: Freewheeling path in synchronous buck converter output stage operating at 300kHz. IC Role / Device Role / Timing Role: Low-loss catch diode providing continuous current path during high-side MOSFET off-time. Use Value: Enables >92% efficiency at 5V/6A output; 120A IFSM withstands inductor current spikes during overload recovery. |
| USB-C Power Delivery Adapter | Telecom PoE Midspan Injector |
Use Scenario: Output rectification in 20V/3.25A GaN-based USB-C PD adapter secondary side. IC Role / Device Role / Timing Role: High-frequency rectifier replacing conventional Si diode to reduce conduction loss and thermal stress. Use Value: 0.46V VF at 25°C cuts conduction loss by 55% vs. 1N5822; enables smaller heatsink and higher power density. | Use Scenario: Polarity correction and DC blocking in 48V PoE midspan injector output stage before Ethernet magnetics. IC Role / Device Role / Timing Role: Input-side protection diode ensuring correct DC polarity to powered device interface. Use Value: 35V VRRM safely blocks PoE Class 4 (57V max) transients; 0.05mA IR at 25°C avoids standby current drain on PoE controller. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS835H-13 | Same 35V/8A rating but TO-277 package; RθJA = 75°C/W (FR-4); no AEC-Q101 qualification. | Suitable for industrial consumer power supplies where automotive qualification is not required. | Select when cost sensitivity outweighs thermal performance and automotive compliance needs. |
| SB835-13 | POWERDI5 package, same AEC-Q101 grade, but VF = 0.49V/8A@25°C (higher conduction loss). | Acceptable where margin exists in thermal budget and 30mV VF increase is tolerable. | Choose if inventory consolidation with SB835-series preferred and 0.03V VF penalty is acceptable. |
Compared with SS835H-13 and SB835-13, PDS835L-13 delivers superior thermal resistance (RθJS = 3.0°C/W), lowest VF at high temperature, and full AEC-Q101 validation - making it optimal for space-constrained, thermally demanding automotive applications requiring long-term reliability.
Availability
PDS835L-13 is available at Aetrix Electronics and suitable for automotive body control modules, industrial DC-DC converters, and USB-C power delivery adapters requiring stable component supply and AEC-Q101-compliant Schottky rectification.
Supply support for PDS835L-13 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, serving automotive, industrial, computing, and consumer markets with over 40 years of power device expertise.
The PDS835L belongs to Diodes' AEC-Q101-qualified POWERDI Schottky rectifier product line, engineered specifically for high-reliability 12V–48V automotive and industrial power conversion where low VF, surge robustness, and thermal predictability are essential.
FAQ
What is the maximum junction temperature for continuous operation of PDS835L-13?
The PDS835L-13 has a rated operating junction temperature range of –65°C to +125°C. For continuous operation at 8A average current, thermal design must ensure TJ does not exceed +125°C - achievable with ≥9.4mm × 7.2mm cathode copper pad on 2 oz. polyimide PCB per Note 7 in DS30488 Rev. 11-2.
Is PDS835L-13 compatible with lead-free reflow soldering profiles?
Yes. PDS835L-13 features matte tin annealed over copper leadframe and is qualified for lead-free reflow per JEDEC J-STD-020. Its moisture sensitivity level is MSL1, allowing unlimited floor life at ≤30°C/85% RH, and it withstands peak reflow temperatures up to 260°C for 30 seconds.
How does the guard ring construction improve reliability in automotive applications?
The guard ring die structure prevents edge breakdown during voltage transients such as load dump (ISO 7637-2 Pulse 5a), reducing localized electric field concentration. This extends device lifetime under repeated 100V+ surges and eliminates premature failure modes common in unguarded Schottky dies in automotive 12V systems.
Can PDS835L-13 be used in parallel configurations for higher current handling?
Yes, but with caution: VF decreases with temperature, creating inherent current-sharing stability. However, mismatched VF between units can cause imbalance. Diodes Incorporated recommends using matched lots, identical PCB thermal pads, and current-limiting resistors (≤10mΩ) in series with each device to ensure balanced sharing above 12A total.
PDS835L-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- PowerDI™ 5
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 35 V
- Current - Average Rectified (Io):
- 8A
- Voltage - Forward (Vf) (Max) @ If:
- 510 mV @ 8 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 1.4 mA @ 35 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerDI™ 5
- Operating Temperature - Junction:
- -65°C ~ 125°C
PDS835L-13 FAQ
1.How can I place an order for PDS835L-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDS835L-13 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 PDS835L-13 reliable?
The price and inventory of PDS835L-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDS835L-13 is usually 5 days.
3.What payment methods are accepted for PDS835L-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDS835L-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDS835L-13?
PDS835L-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDS835L-13 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 PDS835L-13?
For technical support, including PDS835L-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDS835L-13 requirements.
6.How does Aetrix verify that PDS835L-13 is sourced from the original manufacturer or authorized distributors?
All PDS835L-13 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 PDS835L-13 meets industry standards.
7.What is the process for return or replacement of PDS835L-13?
All PDS835L-13 units undergo pre-shipment inspection (PSI). If there is an issue with PDS835L-13, 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 PDS835L-13 part is unused and in its original packaging.
Return procedure for PDS835L-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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