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Diodes Incorporated P6SMAJ70ADF-13
- Part No.:
- P6SMAJ70ADF-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- 2-SMD, Flat Leads
- Datasheet:
-
P6SMAJ70ADF-13.pdf
- Description:
- TVS DIODE 70VWM 113VC D-FLAT
- Quantity:
- Payment:
- Shipping:
Inventory:6,341
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Product details
Overview
P6SMAJ70ADF-13 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 70.0 V, breakdown voltage range 77.8–89.5 V at 1.0 mA test current, clamping voltage of 113.0 V at 5.3 A peak pulse current, and D-FLAT package for space-constrained PCB layouts.
For engineers reviewing the P6SMAJ70ADF-13 datasheet, P6SMAJ70ADF-13 pinout, P6SMAJ70ADF-13 application, or P6SMAJ70ADF-13 equivalent, key selection criteria include clamping voltage margin relative to protected IC VMAX, peak pulse current capability under 10/1000 µs waveform, thermal resistance (RθJA = 92 °C/W on 0.4" × 0.5" pad), and RoHS-compliant green packaging.
Technical Context
This unidirectional TVS diode operates as a shunt-clamping device that remains high-impedance below VRWM (70.0 V) and rapidly transitions to low-impedance conduction above VBR (min 77.8 V) to limit transient energy. Its glass-passivated junction ensures stable leakage (<1.0 µA at VRWM) and repeatable breakdown characteristics across temperature.
The device responds to 10/1000 µs transients with sub-nanosecond turn-on, delivering 600 W peak pulse power dissipation while maintaining clamping voltage ≤113.0 V at IPP = 5.3 A. Thermal performance is optimized for FR-4 boards using specified copper pad geometries (0.2" × 0.25") to achieve RθJT = 57 °C/W.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600 W - Sustains single 10/1000 µs transients without failure |
| Reverse Standoff Voltage (VRWM) | 70.0 V - Maximum continuous DC operating voltage before leakage exceeds 1.0 µA |
| Breakdown Voltage (VBR) | 77.8–89.5 V @ 1.0 mA - Confirmed avalanche initiation range for reliable triggering |
| Clamping Voltage (VC) | 113.0 V @ 5.3 A - Maximum voltage seen by protected circuit during rated surge |
| Peak Pulse Current (IPP) | 5.3 A - Surge current capacity under standardized 10/1000 µs waveform |
| Thermal Resistance (RθJA) | 92 °C/W - Measured on 0.4" × 0.5", 2 oz copper pad; defines safe power derating |
| Package | D-FLAT - Low-profile surface-mount case (4.65 mm × 2.80 mm) with cathode band polarity marking |
Pinout & Package
Package: D-FLAT, surface-mount, molded plastic case (UL 94V-0), cathode-indicated by band. Dimensions: 4.65 mm × 2.80 mm × 1.10 mm max height. Terminals are matte tin annealed over copper leadframe, solderable per MIL-STD-202.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Transient current sink | Connected to protected line; conducts surge current to ground when clamped |
| 2 (Anode) | Reference node | Typically tied to system ground; completes clamping path during overvoltage event |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die construction | Ensures stable VBR tolerance and low leakage (<1.0 µA) across temperature and life cycle |
| Low-profile D-FLAT package | Reduces board area by >30% vs. SMA; enables routing under adjacent components |
| 600 W peak pulse rating | Protects against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 12–48 V rails |
| RoHS-compliant & halogen-free | Meets EU Directive 2011/65/EU; Br+Cl <1500 ppm, Sb <1000 ppm - supports eco-design compliance |
| Fast response time | Sub-nanosecond turn-on limits voltage overshoot during ESD and lightning-induced transients |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of 24 V CAN bus transceivers and microcontroller I/O against load dump and ISO 7637-2 pulses. IC Role / Device Role: Unidirectional shunt clamp placed between CAN_H/CAN_L and chassis ground. Use Value: Limits transient voltage to ≤113 V, preserving transceiver integrity during 100 V/50 ms load dump events. | Use Scenario: Input rail protection for 12 V power supplies feeding body control unit (BCU) MCUs and sensors. IC Role / Device Role: Primary overvoltage clamp on main VIN rail upstream of LDO regulators. Use Value: Withstands 600 W surges while maintaining clamping margin >20% above 12 V system nominal and <30% below MCU absolute maximum rating. |
| Telecom Power Feeds | Renewable Energy Inverters |
Use Scenario: DC input protection for PoE-powered network switches exposed to induced lightning surges on outdoor cabling. IC Role / Device Role: Secondary-level TVS on 48 V DC feed prior to DC-DC conversion stage. Use Value: Clamps 10/1000 µs transients to 113 V, ensuring downstream converters see no more than 120% of rated input voltage. | Use Scenario: Protection of PV string monitoring circuits connected to 70–100 V DC photovoltaic arrays. IC Role / Device Role: Standoff-rated clamp on analog sensor inputs measuring array voltage and current. Use Value: 70 V VRWM matches typical MPPT operating window; 113 V VC prevents ADC saturation during grid-switching transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ70A | Same VRWM (70 V), higher IPP (6.5 A), larger SMB package (4.6 × 3.6 mm) | Lower power density; requires more PCB area but offers better thermal mass | Select when board layout allows larger footprint and higher surge margin is prioritized over space |
| 1.5SMC70A | Same VRWM (70 V), identical 600 W rating, but DO-214AB package (7.1 × 6.2 mm) | Through-hole compatible; not suitable for fully SMT designs | Choose only for legacy through-hole assembly or where manual rework access is required |
Compared with SMBJ70A and 1.5SMC70A, P6SMAJ70ADF-13 delivers equivalent electrical protection in a 30% smaller footprint than SMB and eliminates through-hole assembly-critical for high-density automotive and telecom modules where board real estate and automated placement efficiency are constrained.
Availability
P6SMAJ70ADF-13 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, telecom power feeds, and renewable energy inverters requiring stable component supply, consistent parametric performance, and full traceability across production lots.
Supply support for P6SMAJ70ADF-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, 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, space-constrained DC rail protection in automotive, industrial, and communications equipment where low-profile mounting and precise clamping are essential.
FAQ
What is the maximum operating temperature for P6SMAJ70ADF-13?
The P6SMAJ70ADF-13 has an operating junction temperature range of –55 °C to +150 °C. Its thermal resistance (RθJA = 92 °C/W) is measured on a 0.4" × 0.5" FR-4 board with 2 oz copper; derating begins above +25 °C ambient per Figure 1, reducing peak power linearly to zero at +150 °C.
Is P6SMAJ70ADF-13 suitable for bidirectional transient protection?
No. P6SMAJ70ADF-13 is a unidirectional TVS diode, intended only for DC circuits with defined polarity. For AC or bidirectional signal lines (e.g., USB, RS-485), a bidirectional variant such as P6SMBJ70CA must be used-its schematic symbol and clamping behavior differ fundamentally.
How does the D-FLAT package affect solder joint reliability?
The D-FLAT package uses a flat, gull-wing leadform with matte tin annealed terminals, qualified to MIL-STD-202 Method 208. Its low profile (≤1.10 mm height) reduces mechanical stress during thermal cycling, and the 0.2" × 0.25" recommended pad improves solder fillet formation and intermetallic uniformity versus standard SMA footprints.
Can P6SMAJ70ADF-13 replace older P6KE70A in existing designs?
Yes, with layout adaptation: both share 70 V VRWM and 600 W rating, but P6SMAJ70ADF-13 uses D-FLAT (4.65 × 2.80 mm) versus P6KE70A's DO-15 (5.2 × 2.7 mm). The smaller footprint requires pad revision, and its lower RθJA (92 vs. ~120 °C/W) allows higher sustained power in thermally constrained areas.
P6SMAJ70ADF-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):
- 70V
- Voltage - Breakdown (Min):
- 77.8V
- Voltage - Clamping (Max) @ Ipp:
- 113V
- Current - Peak Pulse (10/1000µs):
- 5.3A
- 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
P6SMAJ70ADF-13 FAQ
1.How can I place an order for P6SMAJ70ADF-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMAJ70ADF-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 P6SMAJ70ADF-13 reliable?
The price and inventory of P6SMAJ70ADF-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMAJ70ADF-13 is usually 5 days.
3.What payment methods are accepted for P6SMAJ70ADF-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMAJ70ADF-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMAJ70ADF-13?
P6SMAJ70ADF-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMAJ70ADF-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 P6SMAJ70ADF-13?
For technical support, including P6SMAJ70ADF-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMAJ70ADF-13 requirements.
6.How does Aetrix verify that P6SMAJ70ADF-13 is sourced from the original manufacturer or authorized distributors?
All P6SMAJ70ADF-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 P6SMAJ70ADF-13 meets industry standards.
7.What is the process for return or replacement of P6SMAJ70ADF-13?
All P6SMAJ70ADF-13 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMAJ70ADF-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 P6SMAJ70ADF-13 part is unused and in its original packaging.
Return procedure for P6SMAJ70ADF-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMAJ70ADF-13 Tags
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