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Texas Instruments SNJ5406W
- Part No.:
- SNJ5406W
- Manufacturer:
- Texas Instruments
- Package:
- 14-CFlatPack
- Datasheet:
-
SNJ5406W.pdf
- Description:
- MILITARY 6-CH, 4.5-V TO 5.5-V BI
- Quantity:
- Payment:
- Shipping:
Inventory:1,269
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Product details
Overview
SNJ5406W from Texas Instruments is a military-grade hex inverter buffer/driver with open-collector high-voltage outputs, designed for level-shifting TTL logic to MOS circuits and driving high-current loads such as relays and indicator lamps. It features 30 V output breakdown voltage, 30 mA maximum sink current per channel, and operates across –55°C to 125°C.
For engineers reviewing the SNJ5406W datasheet, SNJ5406W pinout, SNJ5406W application, or SNJ5406W equivalent, this device is selected for high-reliability industrial control, aerospace interface design, and legacy system upgrades requiring MIL-PRF-38535 compliance, open-collector drive capability, and wide-temperature operation.
Technical Context
The SNJ5406W implements six independent inverting buffer stages, each with an open-collector NPN output stage enabling wired-OR logic and direct interfacing to voltages up to 30 V. Input clamping diodes simplify system design by eliminating external protection components.
It is characterized for use as both a level translator (TTL-to-MOS) and a high-sink-current driver, with input compatibility across standard TTL families and guaranteed performance over the full military temperature range without derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output type | Open-collector NPN - enables wired-OR bus configurations and direct connection to external pull-up networks up to 30 V |
| Max output breakdown voltage | 30 V - supports direct driving of 24 V relay coils and industrial indicator lamps without external voltage translation |
| Max sink current per channel | 30 mA - sufficient for driving LEDs, small solenoids, and logic-level MOSFET gates in ruggedized systems |
| Operating temperature | –55°C to 125°C - qualified per MIL-PRF-38535 for aerospace, defense, and downhole applications |
| Propagation delay (tPHL) | 23 ns max at 5 V, 15 pF load - ensures timing predictability in synchronous control logic and discrete signal conditioning |
| Input compatibility | Fully compatible with standard TTL logic levels - accepts VIH ≥ 2 V and VIL ≤ 0.8 V, simplifying integration into legacy digital subsystems |
| Supply voltage range | 4.5 V to 5.5 V - tightly regulated operation suitable for precision power domains in avionics and test equipment |
Pinout & Package
SNJ5406W is housed in a 14-pin CFP (Ceramic Flatpack) package, hermetically sealed for high-reliability environments. The package features gull-wing leads, 0.100" lead pitch, and meets MIL-STD-1835 GDIP1-T14 mechanical standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 9, 11, 13 | Input (1A–6A) | Active-high TTL-compatible inputs; internally clamped to GND via diodes for ESD robustness |
| 2, 4, 6, 8, 10, 12 | Output (1Y–6Y) | Open-collector NPN outputs - require external pull-up to define logic HIGH; support 30 V off-state voltage |
| 7 | GND | Ground reference for all inputs, outputs, and internal circuitry; must be low-impedance for noise immunity |
| 14 | VCC | Positive supply input (4.5–5.5 V); powers internal logic and output stage bias networks |
Key Features
| Feature | Design Value |
|---|---|
| High-voltage open-collector outputs | 30 V breakdown rating enables direct interface to 24 V industrial buses and relay drivers without level-shifting ICs |
| Input clamping diodes | Integrated diodes eliminate need for external transient suppression on input lines in noisy control environments |
| MIL-PRF-38535 qualification | Qualified for Class B (or higher) screening per QML requirements - traceable lot data, burn-in, and parametric testing included |
| TTL-to-MOS level translation | Converts 5 V TTL logic swings to 30 V open-collector outputs - essential for bridging legacy digital logic with high-side power control |
| Wide operating temperature range | –55°C to 125°C operation verified across full range - no derating required for flight-critical or engine-mounted electronics |
Applications
| Industrial Control Systems | Aerospace Avionics Interfaces |
|---|---|
Use Scenario: Driving electromechanical relays and status indicator lamps in programmable logic controller (PLC) I/O modules. IC Role / Device Role / Timing Role: Hex inverter buffer providing isolated, high-sink-current open-collector outputs for direct relay coil actuation and LED signaling. Use Value: Eliminates need for discrete transistor arrays or optocouplers, reducing BOM count and improving long-term reliability in harsh factory environments. | Use Scenario: Interfacing flight computer digital outputs to 28 V DC power distribution units in unmanned aerial vehicles. IC Role / Device Role / Timing Role: Level-translating buffer converting 5 V TTL signals to 28 V open-collector drive for solid-state power switches. Use Value: Enables deterministic timing (≤23 ns propagation delay) and radiation-tolerant operation under MIL-STD-810 thermal cycling conditions. |
| Downhole Oil & Gas Instrumentation | Legacy Military System Upgrades |
Use Scenario: Controlling pressure transducer excitation and valve actuation in high-temperature wellhead electronics. IC Role / Device Role / Timing Role: High-reliability inverter driver delivering 30 mA sink current per channel at 125°C ambient. Use Value: Maintains functional integrity where plastic-packaged alternatives fail due to thermal degradation or hermetic seal loss. | Use Scenario: Replacing obsolete discrete transistor buffers in radar warning receiver front-end logic boards. IC Role / Device Role / Timing Role: Pin-compatible TTL-compatible inverter buffer restoring original timing margins and drive strength. Use Value: Preserves existing PCB layout while upgrading to modern screened, traceable, and life-cycle-managed components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex inverter buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SNJ5406J | Same electrical specs and temperature range, but in CDIP (ceramic DIP) package with through-hole leads | Preferred for prototyping, manual assembly, or legacy board rework where CFP footprint is unavailable | Select when board-level repair, hand-soldering, or socket-based testing is required |
| SN7406N | Commercial-grade version (0°C to 70°C), PDIP package, RoHS-compliant NiPdAu finish, 40 mA sink current | Suitable for non-military, cost-sensitive industrial or lab equipment where extended temperature range is not needed | Select for new commercial designs requiring lower cost, lead-free compliance, and higher sink current at room temperature |
Compared with SNJ5406J, SNJ5406W offers identical electrical performance but improved thermal dissipation and reduced profile in CFP packaging; compared with SN7406N, it trades commercial temperature range and RoHS compliance for military qualification, hermetic sealing, and guaranteed operation at –55°C and 125°C.
Availability
SNJ5406W is available at Aetrix Electronics and suitable for industrial control systems, aerospace avionics interfaces, and downhole instrumentation requiring stable component supply across extended product lifecycles.
Supply support for SNJ5406W 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and high-reliability logic solutions for industrial, automotive, and defense markets.
The SNJ5406W belongs to TI's military logic family, engineered specifically for mission-critical applications demanding MIL-PRF-38535 qualification, hermetic packaging, and guaranteed performance across extreme environmental conditions.
FAQ
What is the maximum output voltage rating for SNJ5406W?
The SNJ5406W has a minimum output breakdown voltage of 30 V, meaning each open-collector output can safely withstand up to 30 V when in the OFF state. This allows direct connection to 24 V industrial buses or relay coils without external protection components. The rating is verified per MIL-PRF-38535 test procedures and applies across the full –55°C to 125°C operating range.
Is SNJ5406W pin-compatible with SN7406N?
Yes, SNJ5406W is pin-compatible with SN7406N - both devices use the same 14-pin dual-in-line functional pinout (1A–6A inputs, 1Y–6Y outputs, GND, VCC). However, SNJ5406W uses a CFP package with gull-wing leads, while SN7406N uses a PDIP package with through-hole leads; physical mounting differs, but logic mapping and PCB signal routing are identical.
Does SNJ5406W require external pull-up resistors on its outputs?
Yes, SNJ5406W requires external pull-up resistors on all six open-collector outputs (pins 2, 4, 6, 8, 10, 12) to define the HIGH logic state. The value depends on load capacitance and speed requirements - typical values range from 1 kΩ (for fast switching into low-capacitance loads) to 10 kΩ (for low-power indicator lamp driving). No internal pull-ups are present.
What is the maximum sink current per channel for SNJ5406W?
The maximum sink current per channel for SNJ5406W is 30 mA, specified at VCC = 4.5 V and TA = 25°C. This rating is maintained across the full military temperature range, with appropriate derating only required if simultaneous multi-channel sinking exceeds total package power limits. Electrical test data confirms 30 mA capability at 125°C ambient.
How does SNJ5406W differ from SNJ5416W?
SNJ5406W and SNJ5416W share identical package, temperature range, and pinout, but differ in output voltage rating and sink current: SNJ5406W supports 30 V output breakdown and 30 mA sink current, while SNJ5416W supports only 15 V breakdown and the same 30 mA sink current. SNJ5406W is used where higher-voltage interfacing is required; SNJ5416W suits lower-voltage MOS or CMOS loads.
SNJ5406W Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-CFlatPack
- Packaging:
- Tube
- Product Status:
- Active
- Logic Type:
- Buffer, Inverting
- Number of Elements:
- 6
- Number of Bits per Element:
- 1
- Input Type:
- -
- Output Type:
- Open Collector
- Current - Output High, Low:
- 250µA, 30mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-CFP
SNJ5406W FAQ
1.How can I place an order for SNJ5406W through Aetrix?
Please submit a Request for Quotation (RFQ) for SNJ5406W 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 SNJ5406W reliable?
The price and inventory of SNJ5406W are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SNJ5406W is usually 5 days.
3.What payment methods are accepted for SNJ5406W?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SNJ5406W transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SNJ5406W?
SNJ5406W orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SNJ5406W 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 SNJ5406W?
For technical support, including SNJ5406W datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SNJ5406W requirements.
6.How does Aetrix verify that SNJ5406W is sourced from the original manufacturer or authorized distributors?
All SNJ5406W 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 SNJ5406W meets industry standards.
7.What is the process for return or replacement of SNJ5406W?
All SNJ5406W units undergo pre-shipment inspection (PSI). If there is an issue with SNJ5406W, 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 SNJ5406W part is unused and in its original packaging.
Return procedure for SNJ5406W:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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