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Vishay General Semiconductor - Diodes Division 1N6267A-E3/54
- Part No.:
- 1N6267A-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6267A-E3/54.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:5,543
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Product details
Overview
1N6267A-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 6.45 V to 7.14 V breakdown voltage (VBR) at 10 mA, 5.80 V maximum standoff voltage (VWM), 1000 µA maximum reverse leakage at VWM, 1500 W peak pulse power (10/1000 µs), and clamps transients to ≤10.5 V at 143 A peak pulse current - deployed in automotive ECUs, industrial I/O modules, and telecom power supplies.
For engineers reviewing the 1N6267A-E3/54 datasheet, 1N6267A-E3/54 pinout, 1N6267A-E3/54 application, or 1N6267A-E3/54 equivalent, this page delivers verified electrical parameters, JEDEC 1.5KE package details, clamping behavior under surge conditions, thermal derating curves, and direct-fit alternatives for ESD/lightning transient suppression in 5–12 V systems.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: when transient voltage exceeds VBR, it avalanches into low-impedance conduction, diverting surge current away from downstream ICs. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low incremental surge resistance.
It complies with 10/1000 µs waveform testing per REA standards, supports 200 A non-repetitive forward surge (8.3 ms half-sine), and maintains operation from –55 °C to +175 °C junction temperature - enabling use in under-hood automotive and high-temperature industrial environments without derating penalties below 25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 6.45 V / 7.14 V at 10 mA - defines precise clamping initiation threshold for 6.8 V nominal rating |
| VWM | 5.80 V - maximum continuous reverse operating voltage before leakage exceeds 1000 µA |
| IPPM | 143 A - peak surge current it safely clamps at 10.5 V, corresponding to 1500 W (10/1000 µs) |
| VC @ IPPM | ≤10.5 V - clamped voltage during full-rated surge, limiting stress on protected 5 V logic or LDO inputs |
| TJ max | +175 °C - enables placement near heat sources (e.g., power MOSFETs) without thermal shutdown risk |
| RθJA | 75 °C/W - thermal resistance from junction to ambient, defining power dissipation limits on standard PCBs |
| Package | JEDEC DO-201AD (Case Style 1.5KE) - axial-leaded, epoxy-molded, UL 94 V-0 rated body |
Pinout & Package
Package: JEDEC DO-201AD (Case Style 1.5KE), axial-leaded, molded epoxy body with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102. Cathode identified by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or lowest potential rail; establishes reference for unidirectional clamping |
| Cathode | Protected line input | Connected to line being protected (e.g., 5 V supply); avalanche conduction occurs from cathode to anode during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures ±5% VBR tolerance and long-term stability under thermal cycling and humidity |
| 1500 W peak pulse power (10/1000 µs) | Handles lightning-induced surges per IEC 61000-4-5 Level 4 (4 kV) on 50 Ω source impedance |
| Clamping ratio VC/VBR ≈ 1.47 | Minimizes overvoltage overshoot relative to breakdown, reducing stress on downstream 5 V tolerant ICs |
| Response time < 1 ns | Engages before most microsecond-scale transients propagate, protecting fast-switching MOSFET gates and ADC inputs |
| AEC-Q101 qualified variants available | HE3 suffix versions meet automotive reliability requirements (e.g., 1N6267AHE3_B), though 1N6267A-E3/54 is commercial grade |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Card |
|---|---|
Use Scenario: Protects 5 V microcontroller I/O pins from load-dump spikes (up to 35 V, 100 ms) and inductive kickback from relay coils. IC Role / Device Role / Timing Role: Unidirectional shunt clamp placed between MCU pin and ground, conducting only during positive transients above 6.8 V. Use Value: Limits pin voltage to ≤10.5 V during 143 A surge, preventing gate oxide rupture in 5 V logic and enabling compliance with ISO 7637-2 Pulse 5a. |
Use Scenario: Shields 24 V digital input circuitry from field-wiring induced surges (e.g., accidental 48 V misconnection or EFT bursts). IC Role / Device Role / Timing Role: Front-end TVS on optocoupler input side, clamping transients before they reach series current-limiting resistor and LED. Use Value: Withstands repetitive 1500 W pulses at 0.01% duty cycle, maintaining signal integrity across 10-year industrial deployment without degradation. |
| Telecom Power Supply Output Rail | Consumer Appliance Motor Driver Board |
Use Scenario: Guards +5 V output of isolated DC/DC converter against backfeed surges from hot-plugged peripherals or cable discharge events. IC Role / Device Role / Timing Role: Secondary-side TVS connected between output rail and chassis ground, activated only during overvoltage faults. Use Value: Low 5.80 V VWM avoids false triggering during normal 5 V ±5% regulation, while 10.5 V VC prevents latch-up in downstream PMICs. |
Use Scenario: Suppresses commutation spikes from brushed DC motor brushes, which induce >100 V transients on 12 V logic supply traces. IC Role / Device Role / Timing Role: Rail-to-ground clamp on microcontroller's 12 V VDD pin, absorbing energy before it couples into analog sensor paths. Use Value: 175 °C TJ max allows mounting adjacent to motor driver ICs without thermal derating, sustaining protection performance at board temperatures up to 125 °C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.8A | DO-214AA package (SMB), 600 W rating, lower IPPM (65 A), tighter VBR tolerance (5% vs. same), higher VC (11.5 V) | Better suited for space-constrained PCBs; lower power handling requires parallel devices for 1500 W needs | Select SMBJ6.8A when board area is limited and surge energy is ≤600 W; verify layout thermal relief for repeated surges |
| 1.5KE6.8A | Same electrical specs, identical DO-201AD package, E3 suffix denotes RoHS-compliant commercial grade - functionally identical part number variant | No functional difference; 1.5KE6.8A is the base family designation, while 1N6267A is the JEDEC registered device number | 1.5KE6.8A is a direct form-fit-function replacement; both share identical datasheet (88301), pinout, and qualification status |
Compared with 1N6267A-E3/54, SMBJ6.8A trades peak power capacity for compactness and may require thermal derating in high-duty-cycle scenarios, whereas 1.5KE6.8A offers identical protection performance with full cross-reference traceability in Vishay's documentation and distributor inventory systems.
Availability
1N6267A-E3/54 is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controllers, and telecom power supply designs requiring stable component supply, consistent surge immunity certification, and long-lifecycle availability.
Supply support for 1N6267A-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, rectifiers, MOSFETs, and passive components with emphasis on reliability, power efficiency, and AEC-Q qualification.
The 1N6267A-E3/54 belongs to Vishay's TRANSZORB® TVS diode family, engineered specifically for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where failure due to voltage surges must be eliminated.
FAQ
What is the breakdown voltage range of the 1N6267A-E3/54?
The 1N6267A-E3/54 has a guaranteed breakdown voltage (VBR) range of 6.45 V to 7.14 V at 10 mA test current, per the Vishay datasheet 88301. This 6.8 V nominal rating ensures precise clamping onset for 5 V system protection, with tight ±5% tolerance maintained across temperature and lifetime.
Is the 1N6267A-E3/54 bidirectional or unidirectional?
The 1N6267A-E3/54 is a unidirectional Transient Voltage Suppressor. Its polarity is marked by a cathode band; it conducts only during positive transients on the cathode side relative to anode (ground). Bidirectional variants in the same family use "CA" suffixes (e.g., 1.5KE6.8CA), not applicable to 1N6267A-E3/54.
What is the maximum clamping voltage of the 1N6267A-E3/54 at its rated surge current?
At its rated peak pulse current of 143 A (10/1000 µs waveform), the 1N6267A-E3/54 clamps to a maximum of 10.5 V. This value is measured per JEDEC standards and defines the upper voltage limit imposed on protected circuitry during worst-case surge events.
Does the 1N6267A-E3/54 meet automotive qualification standards?
The 1N6267A-E3/54 itself is a commercial-grade part (E3 suffix). However, the identical-specification variant 1N6267AHE3_B is AEC-Q101 qualified. For automotive applications requiring qualification, engineers should specify the HE3_B version - the 1N6267A-E3/54 is intended for industrial and telecom use where AEC-Q101 is not mandated.
What package type does the 1N6267A-E3/54 use, and what are its key mechanical features?
The 1N6267A-E3/54 uses the JEDEC DO-201AD package (Case Style 1.5KE): axial-leaded, epoxy-molded body meeting UL 94 V-0 flammability rating. Leads are matte tin-plated and solderable per J-STD-002; the cathode is marked by a color band, and the device supports solder dip at 275 °C for 10 s per JESD 22-B106.
1N6267A-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):
- 5.8V
- Voltage - Breakdown (Min):
- 6.45V
- Voltage - Clamping (Max) @ Ipp:
- 10.5V
- Current - Peak Pulse (10/1000µs):
- 143A
- 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
1N6267A-E3/54 FAQ
1.How can I place an order for 1N6267A-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6267A-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 1N6267A-E3/54 reliable?
The price and inventory of 1N6267A-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 1N6267A-E3/54 is usually 5 days.
3.What payment methods are accepted for 1N6267A-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6267A-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6267A-E3/54?
1N6267A-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6267A-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 1N6267A-E3/54?
For technical support, including 1N6267A-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6267A-E3/54 requirements.
6.How does Aetrix verify that 1N6267A-E3/54 is sourced from the original manufacturer or authorized distributors?
All 1N6267A-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 1N6267A-E3/54 meets industry standards.
7.What is the process for return or replacement of 1N6267A-E3/54?
All 1N6267A-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6267A-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 1N6267A-E3/54 part is unused and in its original packaging.
Return procedure for 1N6267A-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6267A-E3/54 Tags
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