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Diodes Incorporated P6SMAJ33ADF-13
- Part No.:
- P6SMAJ33ADF-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- 2-SMD, Flat Leads
- Datasheet:
-
P6SMAJ33ADF-13.pdf
- Description:
- TVS DIODE 33VWM 53.3VC D-FLAT
- Quantity:
- Payment:
- Shipping:
Inventory:7,275
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Product details
Overview
P6SMAJ33ADF-13 from Diodes Incorporated is a 600W surface-mount transient voltage suppressor (TVS) diode designed for unidirectional overvoltage protection in DC power lines and signal interfaces. It features a reverse standoff voltage of 33 V, breakdown voltage range 36.7–42.2 V at 1 mA, clamping voltage of 53.3 V at 11.3 A peak pulse current, and D-FLAT package for space-constrained PCB layouts.
For engineers reviewing the P6SMAJ33ADF-13 datasheet, P6SMAJ33ADF-13 pinout, P6SMAJ33ADF-13 application, or P6SMAJ33ADF-13 equivalent, key selection criteria include clamping performance under 10/1000 µs surge, thermal resistance to terminal (57 °C/W on optimized pad), low leakage (<1 µA @ 33 V), and RoHS-compliant green packaging with matte tin annealed terminals.
Technical Context
This unidirectional TVS diode operates as a clamping device that remains high-impedance below 33 V reverse standoff and rapidly transitions to low-impedance conduction above its 36.7–42.2 V breakdown threshold. Its glass-passivated junction ensures stable leakage and robust surge handling across -55°C to +150°C operating range.
The device delivers 600 W peak pulse power per 10 × 1000 µs waveform, with 53.3 V clamping voltage limiting downstream voltage stress during transients. Its D-FLAT package provides low thermal resistance (57 °C/W junction-to-terminal) when mounted on a 0.4" × 0.5" 2 oz copper pad, enabling reliable power dissipation in compact industrial and automotive circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600 W - Sustains single 10×1000 µs surges without failure |
| Reverse Standoff Voltage | 33 V - Maximum continuous DC voltage before significant leakage |
| Breakdown Voltage | 36.7–42.2 V @ 1 mA - Confirmed avalanche initiation window for predictable clamping onset |
| Clamping Voltage | 53.3 V @ 11.3 A - Limits protected circuit voltage during worst-case transient |
| Peak Pulse Current | 11.3 A - Maximum surge current handled at rated clamping voltage |
| Thermal Resistance (J–T) | 57 °C/W - Enables 1.5 W steady-state dissipation with <100°C junction rise on specified pad |
| Leakage Current | <1 µA @ 33 V - Ensures minimal standby power loss in battery-powered systems |
Pinout & Package
Package: D-FLAT - Low-profile surface-mount package (4.65 mm × 2.80 mm × 1.10 mm max), UL 94V-0 molded plastic case with cathode band polarity indicator and matte tin–annealed copper leadframe.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Anode-side reference node | Connected to protected line; conducts during positive transients relative to anode |
| 2 (Anode) | Ground or return path | Typically tied to system ground or low-impedance return; completes clamping path |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die construction | Ensures stable electrical parameters and long-term reliability under thermal cycling and humidity |
| 600 W peak pulse rating | Provides robust protection against IEC 61000-4-5 Level 4 (4 kV) surges in industrial power inputs |
| D-FLAT low-profile package | Reduces board area by >40% vs. SMA while maintaining thermal performance via optimized copper pad layout |
| RoHS-compliant & halogen-free | Meets EU RoHS 2 and JEDEC J-STD-020 Level 1 moisture sensitivity requirements for automated assembly |
Applications
| Industrial PLC I/O Protection | Automotive Body Control Module |
|---|---|
Use Scenario: Protecting 24 V DC sensor input lines in programmable logic controllers against ESD and load dump transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between field wiring and input conditioning circuitry. Use Value: Limits voltage to ≤53.3 V during 11.3 A surges, preventing damage to op-amps and ADC front-ends while maintaining <1 µA leakage at nominal 24 V. | Use Scenario: Safeguarding LIN bus transceiver power rails in door module ECUs exposed to battery voltage spikes. IC Role / Device Role / Timing Role: Primary overvoltage clamp on VCC rail upstream of regulator and transceiver IC. Use Value: Withstands 600 W pulses and clamps at 53.3 V, ensuring downstream 5 V LDO remains within safe input range during 12 V system load dump events. |
| Telecom Power Supply Input | Medical Diagnostic Equipment Interface |
Use Scenario: Secondary surge suppression on 48 V telecom rectifier outputs feeding PoE injectors and baseband processors. IC Role / Device Role / Timing Role: Final-stage clamping device after primary MOV or GDT, absorbing residual energy. Use Value: Fast response time and 57 °C/W thermal resistance enable effective dissipation of repetitive 10/1000 µs transients without thermal runaway on FR-4 boards. | Use Scenario: Protecting analog front-end connectors on ultrasound or patient monitor modules from ESD during cable hot-plug events. IC Role / Device Role / Timing Role: Signal-line TVS on isolated analog inputs requiring low capacitance and sub-µA leakage. Use Value: Maintains <1 µA leakage at 33 V standoff and fast clamping to preserve signal integrity in high-impedance sensor paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ33A | Same 33 V standoff, but SMB package (larger footprint, higher RθJA = 115 °C/W) | Less suitable for ultra-dense layouts; requires larger thermal pad for equivalent power handling | Select when board space allows and legacy SMB footprint compatibility is required |
| 1.5SMC33A | Higher 1500 W rating, DO-214AB package, 58.1 V clamping at 25.8 A | Over-specified for 600 W needs; introduces higher clamping voltage and larger board area | Choose only if system-level surge testing exceeds IEC 61000-4-5 Level 4 requirements |
Compared with SMBJ33A and 1.5SMC33A, P6SMAJ33ADF-13 offers optimal balance of 600 W capability, 53.3 V clamping, and minimal D-FLAT footprint-enabling tighter routing and lower thermal resistance on compact industrial PCBs without over-engineering.
Availability
P6SMAJ33ADF-13 is available at Aetrix Electronics and suitable for industrial PLC I/O protection, automotive body control modules, and telecom power supply inputs requiring stable component supply, consistent parametric performance, and full traceability through production lifecycles.
Supply support for P6SMAJ33ADF-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, specializing in high-reliability protection, power management, and signal integrity solutions for industrial, automotive, and computing markets.
The P6SMAJ series belongs to Diodes' transient voltage suppressor product line, engineered specifically for space-constrained, high-surge environments where low-profile mounting, precise clamping, and green compliance are mandatory design requirements.
FAQ
What is the maximum operating temperature for P6SMAJ33ADF-13?
The device supports continuous operation from -55°C to +150°C junction temperature. At ambient temperatures up to +75°C, it delivers 1.5 W steady-state power dissipation when mounted on a 0.4" × 0.5" 2 oz copper pad, per datasheet thermal characterization notes 7 and 8.
Does P6SMAJ33ADF-13 meet automotive AEC-Q200 requirements?
No-P6SMAJ33ADF-13 is not AEC-Q200 qualified. It is rated for industrial-grade operation (-55°C to +150°C) and complies with RoHS 2 and JEDEC moisture sensitivity Level 1, but lacks the extended reliability testing required for automotive qualification.
How does the D-FLAT package affect PCB layout compared to SMA or SMB?
The D-FLAT package measures 4.65 mm × 2.80 mm with 1.10 mm max height-~30% smaller footprint than SMB and ~50% smaller than SMA. Its thermal pad layout requires a 0.2" × 0.25" copper area for optimal 57 °C/W junction-to-terminal resistance, unlike standard SMA/SMB land patterns.
Can P6SMAJ33ADF-13 be used for bidirectional surge protection?
No-it is a unidirectional TVS diode with cathode/anode polarity. For bidirectional protection, a symmetric device such as P6SMBJ33CA (common-anode dual diode) or separate back-to-back configuration is required; using this part in reverse-biased mode risks permanent breakdown.
P6SMAJ33ADF-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 2-SMD, Flat Leads
- Series:
- SMAJ
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 33V
- Voltage - Breakdown (Min):
- 36.7V
- Voltage - Clamping (Max) @ Ipp:
- 53.3V
- Current - Peak Pulse (10/1000µs):
- 11.3A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D-Flat
P6SMAJ33ADF-13 FAQ
1.How can I place an order for P6SMAJ33ADF-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMAJ33ADF-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 P6SMAJ33ADF-13 reliable?
The price and inventory of P6SMAJ33ADF-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMAJ33ADF-13 is usually 5 days.
3.What payment methods are accepted for P6SMAJ33ADF-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMAJ33ADF-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMAJ33ADF-13?
P6SMAJ33ADF-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMAJ33ADF-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 P6SMAJ33ADF-13?
For technical support, including P6SMAJ33ADF-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMAJ33ADF-13 requirements.
6.How does Aetrix verify that P6SMAJ33ADF-13 is sourced from the original manufacturer or authorized distributors?
All P6SMAJ33ADF-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 P6SMAJ33ADF-13 meets industry standards.
7.What is the process for return or replacement of P6SMAJ33ADF-13?
All P6SMAJ33ADF-13 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMAJ33ADF-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 P6SMAJ33ADF-13 part is unused and in its original packaging.
Return procedure for P6SMAJ33ADF-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMAJ33ADF-13 Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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