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Vishay General Semiconductor - Diodes Division 1N6269A-E3/54
- Part No.:
- 1N6269A-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6269A-E3/54.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:1,989
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Product details
Overview
1N6269A-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary-side overvoltage protection in DC power rails and signal lines. It features a 7.79 V to 8.61 V breakdown voltage (VBR) at 10 mA, 7.02 V maximum standoff voltage (VWM), 12.1 V clamping voltage (VC) at 124 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - used to safeguard MOSFETs, microcontrollers, and sensor interfaces against lightning-induced surges and inductive switching transients.
For engineers reviewing the 1N6269A-E3/54 datasheet, 1N6269A-E3/54 pinout, 1N6269A-E3/54 application, or 1N6269A-E3/54 equivalent, this part serves as a high-energy, fast-response (≤1 ns) unidirectional TVS in commercial-grade 1.5KE axial package - critical for validating surge immunity in industrial power supplies, automotive body electronics, and telecom interface protection where precise VWM/VBR margin and low clamping ratio are design requirements.
Technical Context
This device operates as a silicon avalanche diode with glass-passivated junction, delivering bidirectional-capable clamping action only when configured in dual-diode arrangements - the 1N6269A-E3/54 itself is strictly unidirectional, with cathode marked by color band. Its thermal resistance (RθJA = 75 °C/W) and junction-to-lead resistance (RθJL = 15.4 °C/W) support reliable operation up to 175 °C junction temperature under transient stress.
Clamping performance is defined per JEDEC-standard 10/1000 µs waveform; incremental clamping voltage ΔVC = VC − VBR remains stable across rated IPPM, and leakage current stays ≤200 µA at VWM. The 1N6269A-E3/54 complies with JESD22-B106 (solder dip 275 °C/10 s) and JESD201 Class 1A whisker testing, confirming robustness for automated assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.79 V / 8.61 V at 10 mA - defines minimum trigger threshold and maximum variation tolerance for consistent surge initiation |
| VWM | 7.02 V - maximum continuous reverse operating voltage before leakage exceeds 200 µA; sets safe DC rail margin |
| VC @ IPPM | 12.1 V at 124 A - clamped voltage during 1500 W transient; determines protected circuit's maximum stress level |
| PPPM | 1500 W - peak pulse power handling with 10/1000 µs waveform; enables single-device protection against IEC 61000-4-5 Level 4 surges |
| IFSM | 200 A - non-repetitive forward surge current (8.3 ms half-sine); supports inrush and fault-current withstand in power stage inputs |
| TJ max | +175 °C - maximum junction temperature; allows operation in under-hood automotive or enclosed industrial enclosures |
| Package | Case Style 1.5KE - axial-leaded, molded epoxy package (UL 94 V-0), 0.375" lead length, RoHS-compliant matte tin plating |
Pinout & Package
1N6269A-E3/54 uses a 2-terminal axial-leaded DO-201AD (Case Style 1.5KE) package. Cathode is identified by a color band on the body; anode is unmarked. Leads are matte tin-plated and solderable per J-STD-002/JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to lower-potential side of protected line | Must be tied to ground or return path when used in shunt configuration for positive-rail protection |
| Cathode | Current exit point in forward bias; marked by color band; reverse-biased during normal operation | Connected to protected line (e.g., +12 V rail); conducts only during overvoltage events to clamp to VC |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable VBR tolerance (±5 %) and long-term reliability under thermal cycling and humidity exposure |
| 1500 W peak pulse power (10/1000 µs) | Supports single-device compliance with IEC 61000-4-5 surge immunity up to 4 kV (open-circuit) in 2 Ω source impedance systems |
| Clamping ratio (VC/VBR) ≈ 1.46 | Minimizes voltage overshoot during transients - critical for protecting 5 V or 3.3 V logic interfaces downstream of DC/DC converters |
| Response time ≤1 ns | Acts before sensitive ICs experience destructive overvoltage - faster than MOVs or polymer-based protectors |
| AEC-Q101 qualification option (HE3 suffix) | Enables drop-in use in automotive body control modules and infotainment power supplies without requalification |
Applications
| Industrial Power Supply Input Protection | Automotive Body Control Module (BCM) Power Rail |
|---|---|
|
Use Scenario: 24 V DC input to programmable logic controller (PLC) power supply subjected to load dump and ISO 7637-2 Pulse 5a transients. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed between +24 V rail and chassis ground, triggered within 1 ns to clamp spikes to ≤12.1 V. Use Value: Prevents damage to upstream rectifier diodes and downstream buck converter ICs by limiting peak rail voltage during 100 V/100 ms load dump events. |
Use Scenario: 12 V battery feed to BCM microcontroller and CAN transceiver exposed to jump-start surges and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS mounted at main power entry, conducting only during positive overvoltage events while blocking reverse leakage. Use Value: Maintains VWM = 7.02 V margin above nominal 5.5–6.5 V regulator input, ensuring no false triggering during cranking dips or ripple. |
| Telecom Line Interface Surge Protection | Consumer Appliance Motor Drive Board |
|
Use Scenario: RS-485 data line powered from local 5 V supply, routed externally and vulnerable to induced lightning surges per ITU-T K.20. IC Role / Device Role / Timing Role: Paired unidirectional TVS devices (anode-to-ground, cathode-to-line) forming low-capacitance (<100 pF) differential protection network. Use Value: Limits common-mode surge energy to <12.1 V on each line relative to ground, preserving signal integrity and preventing receiver latch-up. |
Use Scenario: H-bridge gate driver supply (15 V) feeding brushed DC motor in washing machine control board, subject to back-EMF spikes during commutation. IC Role / Device Role / Timing Role: TVS placed across gate driver VDD and GND, absorbing repetitive 1500 W pulses generated by motor inductance. Use Value: Eliminates need for external snubbers or larger bulk capacitors by clamping transients before they exceed gate oxide breakdown limits of MOSFET drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0A | DO-214AA package (SMB), 8.0 V VWM, 12.3 V VC @ 123 A, 600 W PPPM | Lower power rating; surface-mount only; higher thermal resistance (RθJA ≈ 110 °C/W) | Select SMBJ8.0A only for space-constrained PCBs where 600 W surge margin suffices and through-hole mounting is not required. |
| 1.5KE8.2A | Same 1.5KE package, identical VBR/VWM/VC specs, but E3/54 tape-and-reel packaging differs from 1N6269A-E3/54's specific reel size (1400 pcs/13″ reel) | No functional difference; identical electrical and thermal performance; same Vishay manufacturing lot traceability | 1.5KE8.2A is a direct form-fit-function replacement - choose when standard reel quantity or alternate ordering code (e.g., -E3/72) is preferred. |
Compared with 1N6269A-E3/54, SMBJ8.0A offers SMT compatibility at reduced surge capacity, while 1.5KE8.2A delivers identical protection performance in the same axial package - making it the preferred alternative for BOM consolidation without layout or thermal redesign.
Availability
1N6269A-E3/54 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, and telecom interface protection requiring stable component supply, full traceability, and long-lifecycle support.
Supply support for 1N6269A-E3/54 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, power efficiency, and AEC-Q qualification.
The 1N6269A-E3/54 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where failure modes must be mitigated without compromising signal fidelity or thermal stability.
FAQ
What is the breakdown voltage range of the 1N6269A-E3/54?
The 1N6269A-E3/54 has a guaranteed breakdown voltage (VBR) range of 7.79 V to 8.61 V at 10 mA test current, measured per JEDEC standard. This tight ±5 % tolerance ensures predictable clamping onset across production lots and temperature ranges, critical for designs where VBR must remain safely above maximum steady-state rail voltage (e.g., 7.02 V VWM) while avoiding false triggering.
Is the 1N6269A-E3/54 suitable for automotive applications?
The 1N6269A-E3/54 is commercial-grade; however, its identical-specification variant 1.5KE8.2AHE3_B is AEC-Q101 qualified for automotive use. For under-hood or BCM applications requiring qualification, engineers should specify the HE3_B suffix version. The 1N6269A-E3/54 itself meets all electrical and mechanical specs needed for automotive environments but lacks formal AEC-Q101 certification documentation.
How does the 1N6269A-E3/54 compare to MOV-based surge protection?
The 1N6269A-E3/54 offers sub-nanosecond response time, precise VBR control, and no degradation after repeated surges - unlike metal-oxide varistors (MOVs), which exhibit wear-out, capacitance drift, and slower response (>25 ns). Its 12.1 V clamping at 124 A provides tighter voltage limiting than typical MOVs, making it superior for protecting low-voltage ICs in precision power systems.
What is the maximum allowable junction temperature for the 1N6269A-E3/54?
The 1N6269A-E3/54 has a maximum junction temperature (TJ) rating of +175 °C, verified per thermal characterization data. This allows sustained operation in high-ambient environments such as enclosed industrial drives or engine-compartment-mounted ECUs, provided PCB copper area and airflow meet derating curves shown in Figure 5 of the Vishay 88301 datasheet.
Can the 1N6269A-E3/54 be used in bidirectional configurations?
No - the 1N6269A-E3/54 is strictly unidirectional. Bidirectional variants use the "CA" suffix (e.g., 1.5KE8.2CA). To achieve bidirectional protection with 1N6269A-E3/54, two devices must be connected in series opposition (anode-to-anode or cathode-to-cathode), but this increases cost, footprint, and parasitic inductance versus a single CA-part solution.
1N6269A-E3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 7.02V
- Voltage - Breakdown (Min):
- 7.79V
- Voltage - Clamping (Max) @ Ipp:
- 12.1V
- Current - Peak Pulse (10/1000µs):
- 124A
- 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
1N6269A-E3/54 FAQ
1.How can I place an order for 1N6269A-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6269A-E3/54 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 1N6269A-E3/54 reliable?
The price and inventory of 1N6269A-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6269A-E3/54 is usually 5 days.
3.What payment methods are accepted for 1N6269A-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6269A-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6269A-E3/54?
1N6269A-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6269A-E3/54 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 1N6269A-E3/54?
For technical support, including 1N6269A-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6269A-E3/54 requirements.
6.How does Aetrix verify that 1N6269A-E3/54 is sourced from the original manufacturer or authorized distributors?
All 1N6269A-E3/54 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 1N6269A-E3/54 meets industry standards.
7.What is the process for return or replacement of 1N6269A-E3/54?
All 1N6269A-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6269A-E3/54, 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 1N6269A-E3/54 part is unused and in its original packaging.
Return procedure for 1N6269A-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6269A-E3/54 Tags
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