My Inquiry
My Account
Diodes Incorporated P6SMAJ7.5ADF
- Part No.:
- P6SMAJ7.5ADF
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- 2-SMD, Flat Leads
- Datasheet:
-
P6SMAJ7.5ADF.pdf
- Description:
- TVS DIODE 7.5VWM 12.9VC D-FLAT
- Quantity:
- Payment:
- Shipping:
Inventory:9,982
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6SMAJ7.5ADF from Diodes Incorporated is a 600W surface-mount transient voltage suppressor (TVS) diode designed for unidirectional overvoltage protection in DC power rails and signal lines. It features a reverse standoff voltage of 7.5V, breakdown voltage range of 8.33–9.58V at 1.0mA test current, clamping voltage of 12.9V at 46.5A peak pulse current, and D-FLAT package for space-constrained PCB layouts.
For engineers reviewing the P6SMAJ7.5ADF datasheet, P6SMAJ7.5ADF pinout, P6SMAJ7.5ADF application, or P6SMAJ7.5ADF equivalent, key selection criteria include clamping performance under 10/1000µs surge, low leakage (<100µA at VRWM), thermal resistance (RθJA = 92°C/W on small pad), and RoHS-compliant green construction.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, activated when reverse voltage exceeds its breakdown threshold. Its glass-passivated die ensures stable VBR tolerance and long-term reliability under repetitive transients.
Designed for single-pulse 10×1000µs waveform compliance per REA standards, it delivers 600W peak pulse power with fast response time (<1.0ps) and low junction-to-terminal thermal resistance (57°C/W on optimized 0.4"×0.5" FR-4 pad).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W - Sustains high-energy surges without failure under defined 10×1000µs waveform |
| Reverse Standoff Voltage (VRWM) | 7.5V - Maximum continuous DC operating voltage before significant leakage begins |
| Breakdown Voltage (VBR) | 8.33–9.58V @ 1.0mA - Tight tolerance ensures predictable turn-on across temperature and unit variation |
| Clamping Voltage (VC) | 12.9V @ 46.5A - Limits downstream circuit voltage during surge to safe levels for 3.3V/5V ICs |
| Max Reverse Leakage (IR) | 100µA @ 7.5V - Low leakage preserves battery life and avoids false triggering in low-power systems |
| Thermal Resistance (RθJA) | 92°C/W - Validated on 0.4"×0.5", 2oz copper pad; enables thermal-aware layout in compact designs |
Pinout & Package
Package: D-FLAT - Low-profile surface-mount package (4.65mm × 2.80mm × 1.10mm max), UL 94V-0 rated, matte tin annealed terminals, cathode band polarity indicator.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Transient current sink node | Connected to protected line; carries full surge current to ground during clamping |
| 2 (Anode) | Reference/ground return path | Must be routed to low-impedance ground plane to minimize clamping voltage overshoot |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die construction | Ensures stable VBR and leakage performance over 10+ year field life under thermal cycling |
| Low-profile D-FLAT package | Reduces board area by >40% vs. SMA; enables placement near connectors or IC power pins |
| 600W peak pulse rating | Withstands IEC 61000-4-5 Level 4 (4kV surge) with margin in typical PCB layouts |
| Halogen- and antimony-free "Green" design | Meets <900ppm Br, <900ppm Cl, <1000ppm Sb - compliant with global environmental directives |
Applications
| Industrial Sensor Interface | USB Power Input Protection |
|---|---|
Use Scenario: Protecting 24V analog sensor outputs against induced lightning surges on factory floor wiring. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor output line and system ground. Use Value: Clamps transients to ≤12.9V, preserving integrity of downstream 12-bit ADC inputs and isolators. |
Use Scenario: Safeguarding USB Type-A port VBUS line from ESD and hot-plug voltage spikes. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 5V power rail upstream of USB controller and load switch. Use Value: Sub-100ns response prevents latch-up in USB PHY ICs; 100µA leakage avoids standby current violations. |
| Automotive Body Control Module | Smart Meter Power Supply |
Use Scenario: Suppressing load-dump transients on 12V supply rail in BCM microcontroller subsystems. IC Role / Device Role / Timing Role: Secondary protection device after primary fuse and LC filter, directly at MCU power input. Use Value: Withstands 60A surge per ISO 7637-2 Pulse 5a; RθJA = 92°C/W allows operation up to +105°C ambient. |
Use Scenario: Guarding AC/DC converter output against grid-switching transients in utility smart meters. IC Role / Device Role / Timing Role: Final-stage clamp on regulated 3.3V rail feeding metrology SoC and RF module. Use Value: 12.9V clamping protects 3.3V logic without requiring series resistor; RoHS/Green compliance meets utility procurement mandates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.5A | Same 7.5V VRWM, but SMB package (larger footprint, RθJA ≈ 110°C/W) | Better suited for higher-power derating needs; less space-efficient than D-FLAT | Select when board layout allows larger pad area and thermal mass is prioritized over density |
| 1.5SMC7.5A | Higher 1500W rating, DO-214AB package, 13.6V clamping at 111A | Over-specified for 600W use cases; requires more PCB area and cost | Choose only if legacy design reuse or future-proofing against higher surge classes is required |
Compared with SMBJ7.5A and 1.5SMC7.5A, P6SMAJ7.5ADF offers optimal balance of surge robustness, ultra-compact size, and thermal efficiency for space-limited industrial and consumer electronics-without sacrificing clamping precision or environmental compliance.
Availability
P6SMAJ7.5ADF is available at Aetrix Electronics and suitable for industrial sensor interfaces, USB power input protection, automotive body control modules, and smart meter power supplies requiring stable component supply and consistent surge performance across production batches.
Supply support for P6SMAJ7.5ADF 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, manufacturing, and sales operations across Asia, Europe, and North America.
The P6SMAJ series belongs to Diodes' transient voltage suppression portfolio, engineered specifically for high-reliability, surface-mount overvoltage protection in compact, thermally constrained applications across industrial, computing, and automotive markets.
FAQ
What is the maximum clamping voltage of P6SMAJ7.5ADF under standard test conditions?
The maximum clamping voltage (VC) is 12.9V, measured at 46.5A peak pulse current using the 10×1000µs waveform per REA standards. This value is guaranteed across the full operating temperature range (−55°C to +150°C) and represents the upper limit of voltage seen by protected circuitry during surge events.
Does P6SMAJ7.5ADF support bidirectional transient suppression?
No - P6SMAJ7.5ADF is a unidirectional TVS diode, configured for protection of positive DC rails only. Its schematic symbol and internal structure include a single PN junction with cathode-anode polarity; bidirectional operation would require a symmetric device such as P6SMBJ7.5CA or equivalent dual-diode configuration.
What is the recommended PCB pad layout for optimal thermal performance?
For RθJA = 92°C/W, use a 0.4" × 0.5" (10.2mm × 12.7mm), 2oz copper pad on FR-4 with 0.2" × 0.25" (5.1mm × 6.4mm) solder mask opening. Thermal vias (≥4×0.3mm diameter) to inner ground planes are strongly advised to reduce steady-state junction temperature in continuous surge environments.
Is P6SMAJ7.5ADF compatible with lead-free reflow profiles?
Yes - it features a matte tin annealed finish over copper leadframe and is qualified for standard JEDEC J-STD-020D lead-free reflow profiles, including peak temperatures up to 260°C for 30 seconds. Moisture sensitivity level is rated at Level 1, eliminating bake requirements prior to assembly.
P6SMAJ7.5ADF 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):
- 7.5V
- Voltage - Breakdown (Min):
- 8.33V
- Voltage - Clamping (Max) @ Ipp:
- 12.9V
- Current - Peak Pulse (10/1000µs):
- 46.5A
- 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
P6SMAJ7.5ADF FAQ
1.How can I place an order for P6SMAJ7.5ADF through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMAJ7.5ADF 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 P6SMAJ7.5ADF reliable?
The price and inventory of P6SMAJ7.5ADF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMAJ7.5ADF is usually 5 days.
3.What payment methods are accepted for P6SMAJ7.5ADF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMAJ7.5ADF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMAJ7.5ADF?
P6SMAJ7.5ADF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMAJ7.5ADF 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 P6SMAJ7.5ADF?
For technical support, including P6SMAJ7.5ADF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMAJ7.5ADF requirements.
6.How does Aetrix verify that P6SMAJ7.5ADF is sourced from the original manufacturer or authorized distributors?
All P6SMAJ7.5ADF 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 P6SMAJ7.5ADF meets industry standards.
7.What is the process for return or replacement of P6SMAJ7.5ADF?
All P6SMAJ7.5ADF units undergo pre-shipment inspection (PSI). If there is an issue with P6SMAJ7.5ADF, 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 P6SMAJ7.5ADF part is unused and in its original packaging.
Return procedure for P6SMAJ7.5ADF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMAJ7.5ADF Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
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 …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
