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Vishay General Semiconductor - Diodes Division 1N6299A-E3/51
- Part No.:
- 1N6299A-E3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6299A-E3/51.pdf
- Description:
- TVS DIODE 128VWM 207VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:5,108
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Product details
Overview
1N6299A-E3/51 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 1500 W peak pulse power rating (10/1000 µs), 143 V minimum breakdown voltage (VBR), 128 V maximum standoff voltage (VWM), 7.2 A peak pulse current (IPPM), and clamps to 207 V at rated surge. It is used in automotive power supply inputs, industrial sensor interfaces, and telecom line protection where fast-response, high-energy transient suppression is required.
For engineers reviewing the 1N6299A-E3/51 datasheet, 1N6299A-E3/51 pinout, 1N6299A-E3/51 application, or 1N6299A-E3/51 equivalent, this part delivers verified unidirectional clamping performance with glass-passivated junction reliability, RoHS-compliant matte tin leads, and UL 94 V-0 molded epoxy packaging - critical for ESD and lightning-induced surge design validation.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1000 MΩ at VWM), but switches to low-impedance conduction within <1 ns when transient voltage exceeds VBR. Its unidirectional polarity uses a cathode band marking and supports DC-biased circuits only.
It is rated for 175 °C maximum junction temperature, derates linearly above 25 °C ambient per Fig. 2, and exhibits 0.106 %/°C temperature coefficient of VBR. Thermal resistance is 75 °C/W (junction-to-ambient) and 15.4 °C/W (junction-to-lead), enabling direct PCB trace heat sinking without external heatsinks for moderate duty cycles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 143 V / 158 V at 1.0 mA test current - defines precise clamping onset threshold for overvoltage detection |
| VWM | 128 V maximum - ensures reliable blocking of normal operating voltage with margin before leakage increases |
| VC @ IPPM | 207 V at 7.2 A - actual worst-case clamped voltage seen by protected IC during full-rated surge |
| PPPM | 1500 W (10/1000 µs waveform) - energy-handling capacity sufficient for IEC 61000-4-5 Level 4 surges |
| IPPM | 7.2 A - peak surge current capability directly determines minimum series impedance needed upstream |
| TJ max | 175 °C - enables operation in under-hood automotive or high-temperature industrial enclosures |
| Package | Case Style 1.5KE - axial-leaded DO-201AD package with 0.375" lead length, UL 94 V-0 compliant |
Pinout & Package
Package: DO-201AD (Case Style 1.5KE), axial-leaded, molded epoxy body with glass-passivated junction. Cathode indicated by color band on one end; anode is unmarked lead.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked lead) | Current entry point during forward conduction | Connected to lower-potential side (e.g., ground or return path) in unidirectional clamp configuration |
| Cathode (banded lead) | Current exit point during reverse breakdown | Connected to protected line (e.g., +12 V rail); clamping occurs when voltage exceeds VBR relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated chip junction | Enables stable VBR tolerance (±5 %) and long-term reliability under thermal cycling and humidity stress |
| 1500 W peak pulse power (10/1000 µs) | Supports robust protection against IEC 61000-4-5 combination wave surges up to 4 kV/2 Ω without degradation |
| Clamping ratio VC/VBR = 1.45 | Low incremental surge resistance yields tight clamping margin - reduces stress on downstream MOSFETs or regulators |
| Response time < 1 ns | Protects nanosecond-scale logic and analog circuitry before transients propagate through PCB traces |
| RoHS-compliant matte tin plating | Ensures solderability per J-STD-002/JESD 22-B102 and whisker resistance per JESD 201 Class 1A |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: 12 V battery-fed ECUs exposed to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional shunt clamp placed between battery rail and input filter capacitor. Use Value: Limits transient voltage to ≤207 V, preventing damage to LDOs and microcontrollers rated for 36 V absolute max. | Use Scenario: 4–20 mA current loop interface in factory automation PLC modules subjected to field wiring ESD and inductive kickback. IC Role / Device Role / Timing Role: Series-connected TVS on loop supply line, referenced to local ground. Use Value: Clamps 8/20 µs surges to safe levels while maintaining <1 µA leakage at 24 V nominal, preserving loop accuracy. |
| Telecom DC Power Feeds | Consumer Appliance Motor Drive Inputs |
Use Scenario: -48 V DC power input to remote radio units in cellular base stations, subject to lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary protection stage before DC/DC converter, mounted near connector. Use Value: Absorbs 1500 W surge energy without failure, meeting Telcordia GR-1089-CORE Level 3 requirements. | Use Scenario: AC/DC adapter output feeding BLDC motor driver ICs in smart home appliances, exposed to relay contact bounce and transformer flyback. IC Role / Device Role / Timing Role: Unidirectional TVS across DC bus, cathode to positive rail. Use Value: Prevents gate oxide rupture in 600 V MOSFETs by clamping spikes to 207 V, well below 300 V rating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150A | DO-214AA package, 1500 W rating, VBR = 167–185 V, VC = 243 V at 6.2 A | Surface-mount footprint; higher clamping voltage and lower IPPM than 1N6299A-E3/51 | Select for space-constrained PCBs where reflow compatibility and automated assembly are prioritized over lowest possible clamping voltage. |
| 1.5KE150A | Same die, identical electrical specs, DO-201AD package, but commercial-grade (non-AEC-Q101 qualified) | No automotive qualification; same thermal and surge performance | Select when AEC-Q101 is not required and cost optimization is critical - identical protection behavior in non-automotive systems. |
Compared with SMBJ150A, 1N6299A-E3/51 offers lower clamping (207 V vs. 243 V) and higher surge current handling (7.2 A vs. 6.2 A) in through-hole format; compared with 1.5KE150A, it adds RoHS compliance and JESD 201 Class 1A whisker resistance - essential for long-life industrial deployments.
Availability
1N6299A-E3/51 is available at Aetrix Electronics and suitable for automotive electronics, industrial control systems, and telecom infrastructure requiring stable component supply with traceable sourcing and lifecycle continuity.
Supply support for 1N6299A-E3/51 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, and protection devices with emphasis on reliability, power handling, and automotive qualification.
The 1N6299A-E3/51 belongs to the TRANSZORB® 1.5KE family, engineered for high-energy transient suppression in harsh environments - targeting applications where failure due to voltage surges must be eliminated, not merely mitigated.
FAQ
What is the breakdown voltage tolerance for 1N6299A-E3/51?
The 1N6299A-E3/51 has a specified breakdown voltage range of 143 V to 158 V at 1.0 mA test current, corresponding to a ±5 % tolerance around the nominal 150 V rating. This tight tolerance ensures predictable clamping onset across production lots and supports accurate system-level surge margin analysis without overspecifying downstream components.
Is 1N6299A-E3/51 suitable for bidirectional transient protection?
No, 1N6299A-E3/51 is a unidirectional TVS diode and must be used only in DC-biased circuits where polarity is fixed. For bidirectional protection (e.g., AC lines or differential data buses), Vishay offers the 1N6299CA variant. Using 1N6299A-E3/51 in reverse-biased AC applications will result in forward conduction and potential device failure.
What is the maximum allowable mounting temperature for 1N6299A-E3/51 during soldering?
The 1N6299A-E3/51 supports solder dip at 275 °C maximum for 10 seconds per JESD 22-B106, and its matte tin-plated leads comply with J-STD-002 and JESD 22-B102 for solderability. Reflow profiles must stay within JEDEC Level 1 limits; peak temperature should not exceed 260 °C for ≤10 s to avoid epoxy cracking or junction degradation.
How does the thermal resistance of 1N6299A-E3/51 affect PCB layout?
With RθJL = 15.4 °C/W (junction-to-lead), 1N6299A-E3/51 relies on copper traces connected to its leads for heat dissipation. Layout best practice requires ≥10 mm² of 2 oz copper per lead, with thermal vias to inner ground planes. This minimizes junction temperature rise during repetitive surges and extends device lifetime beyond the 175 °C absolute maximum rating.
Does 1N6299A-E3/51 meet AEC-Q101 qualification?
No, 1N6299A-E3/51 is the commercial-grade version. The AEC-Q101 qualified variant is designated 1N6299AHE3_B (with revision code suffix). While both share identical electrical parameters and package, only the HE3_B version undergoes automotive-grade stress testing including temperature cycling, HTRB, and ESD per AEC-Q101 Rev G. Use 1N6299AHE3_B for under-hood or safety-critical automotive designs.
1N6299A-E3/51 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 128V
- Voltage - Breakdown (Min):
- 143V
- Voltage - Clamping (Max) @ Ipp:
- 207V
- Current - Peak Pulse (10/1000µs):
- 7.2A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1N6299A-E3/51 FAQ
1.How can I place an order for 1N6299A-E3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6299A-E3/51 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 1N6299A-E3/51 reliable?
The price and inventory of 1N6299A-E3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6299A-E3/51 is usually 5 days.
3.What payment methods are accepted for 1N6299A-E3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6299A-E3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6299A-E3/51?
1N6299A-E3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6299A-E3/51 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 1N6299A-E3/51?
For technical support, including 1N6299A-E3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6299A-E3/51 requirements.
6.How does Aetrix verify that 1N6299A-E3/51 is sourced from the original manufacturer or authorized distributors?
All 1N6299A-E3/51 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 1N6299A-E3/51 meets industry standards.
7.What is the process for return or replacement of 1N6299A-E3/51?
All 1N6299A-E3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6299A-E3/51, 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 1N6299A-E3/51 part is unused and in its original packaging.
Return procedure for 1N6299A-E3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6299A-E3/51 Tags
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