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Vishay General Semiconductor - Diodes Division 1N6267HE3/73
- Part No.:
- 1N6267HE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6267HE3/73.pdf
- Description:
- TVS DIODE 5.5VWM 10.8VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:8,930
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Product details
Overview
1N6267HE3/73 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 6.45 V to 7.14 V breakdown voltage (VBR) at 10 mA, 5.80 V maximum working peak reverse voltage (VWM), 1000 µA maximum reverse leakage at VWM, and clamps transients to 10.5 V at 143 A peak pulse current (IPPM) under 10/1000 µs waveform. It delivers 1500 W peak pulse power and operates from –55 °C to +175 °C.
For engineers reviewing the 1N6267HE3/73 datasheet, 1N6267HE3/73 pinout, 1N6267HE3/73 application, or 1N6267HE3/73 equivalent, this part serves as a RoHS-compliant, AEC-Q101-qualified TVS for automotive and industrial surge protection where fast clamping (<1 ns), low clamping ratio (VC/VBR ≈ 1.55), and high surge robustness (200 A IFSM) are required.
Technical Context
This device uses a glass-passivated silicon junction optimized for transient suppression with minimal parasitic capacitance and low incremental surge resistance. Its unidirectional polarity enables cathode-referenced placement on positive-rail protection paths, and its 10/1000 µs waveform rating reflects standardized lightning-surge immunity testing per REA P.E. 60.
The 1N6267HE3/73 exhibits a temperature coefficient of VBR of +0.057 %/°C and thermal resistance of 15.4 °C/W (junction-to-lead), enabling reliable operation without external heatsinking up to 6.5 W steady-state dissipation at TL = 75 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 6.45 V / 7.14 V at 10 mA - defines precise clamping onset threshold for design margining |
| VWM | 5.80 V - maximum continuous reverse voltage before significant leakage begins |
| IPPM | 143 A at 10/1000 µs - peak surge current it safely clamps without failure |
| VC | 10.5 V at IPPM - actual clamped voltage seen by protected circuit during worst-case surge |
| PPPM | 1500 W - peak transient energy absorption capability per single event |
| TJ max | +175 °C - enables use in under-hood automotive and high-ambient industrial environments |
| Package | Case Style 1.5KE - axial-leaded DO-201AD package with matte tin-plated leads |
Pinout & Package
1N6267HE3/73 is housed in a DO-201AD (Case Style 1.5KE) axial-leaded package. The cathode is marked by a color band on the body; the anode is the unmarked end. Leads are matte tin-plated and compliant with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias | Connected to ground or lower-potential node in unidirectional rail protection |
| Cathode | Current exit terminal in forward bias; marked end | Connected to protected line (e.g., +12 V rail); absorbs positive transients when VLINE > VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable VBR and low leakage across temperature and lifetime |
| 1500 W peak pulse power (10/1000 µs) | Meets IEC 61000-4-5 Level 4 surge immunity requirements for industrial equipment |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive powertrain and body electronics applications requiring reliability certification |
| Clamping time <1 ns | Protects sensitive ICs (e.g., CAN transceivers, microcontrollers) before damage occurs |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a) |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and regulator input to clamp surges above 13.5 V. Use Value: Limits voltage to ≤10.5 V during 143 A transients, preventing LDO or MCU damage while maintaining AEC-Q101 compliance. |
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) connected to long harnesses in factory automation. IC Role / Device Role / Timing Role: Cathode-connected to signal line, anode to ground-shunts ESD and inductive switching spikes. Use Value: Clamps 8 kV HBM ESD events within 1 ns, preserving ADC input integrity and eliminating need for additional series impedance. |
| Telecom Line Interface Protection | Consumer Power Adapter Input Stage |
Use Scenario: Front-end protection for PoE-powered devices exposed to induced lightning on outdoor Ethernet cables. IC Role / Device Role / Timing Role: Primary shunt suppressor on DC input side of PD controller, coordinated with secondary GDT or MOV. Use Value: Absorbs 1500 W surge energy per IEC 61000-4-5, reducing downstream component stress and passing EN 61000-6-2 immunity tests. |
Use Scenario: Overvoltage clamp on AC-DC adapter primary-side rectified output before bulk capacitor. IC Role / Device Role / Timing Role: Unidirectional TVS across +VOUT and GND to suppress transformer ringing and MOSFET turn-off spikes. Use Value: Maintains 5.8 V standoff while clamping to 10.5 V, preventing bulk cap overvoltage and ensuring UL 62368-1 compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.8A-E3/52 | DO-214AA (SMB) package; 6.45–7.14 V VBR; 1000 W PPPM; higher RθJA (90 °C/W) | Lower peak power rating; better suited for PCB space-constrained designs with moderate surge exposure | Select when board area is limited and 1000 W surge capacity suffices; requires thermal pad for >1 W continuous dissipation |
| 1.5KE6.8AHE3_B | Same electrical specs and DO-201AD package; differs only in packaging format (tape-and-reel vs. bulk/73) | No functional difference; identical performance and qualification (AEC-Q101, RoHS) | Choose for automated SMT assembly with 13" tape; 1N6267HE3/73 is preferred for manual or low-volume prototyping with bulk delivery |
Compared with SMBJ6.8A-E3/52, the 1N6267HE3/73 provides 50 % higher surge power handling and lower thermal resistance to lead, making it preferable for high-reliability automotive and industrial systems; versus 1.5KE6.8AHE3_B, it offers identical protection performance but in a different packaging configuration optimized for flexible procurement.
Availability
1N6267HE3/73 is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor interface hardening, and telecom line surge suppression requiring stable component supply across extended product lifecycles.
Supply support for 1N6267HE3/73 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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The 1N6267HE3/73 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust, millisecond-scale transient suppression in harsh electromagnetic environments including automotive power nets and industrial fieldbus interfaces.
FAQ
What is the breakdown voltage tolerance of the 1N6267HE3/73?
The 1N6267HE3/73 has a specified breakdown voltage range of 6.45 V to 7.14 V at 10 mA test current, representing ±5 % tolerance around the nominal 6.8 V rating. This tight VBR window ensures consistent clamping behavior across production lots and supports reliable margining in 5 V or 12 V system protection designs. The 1N6267HE3/73 maintains this specification across its full operating temperature range.
Is the 1N6267HE3/73 suitable for bidirectional transient protection?
No, the 1N6267HE3/73 is a unidirectional TVS diode, indicated by the "A" suffix and absence of "CA" in its designation. It conducts only in reverse breakdown (cathode-to-anode) and must be oriented with cathode toward the protected line. For bidirectional protection, Vishay offers variants such as 1N6267CA or 1.5KE6.8CA, which suppress both positive and negative transients without polarity sensitivity.
What does the "HE3/73" suffix mean in 1N6267HE3/73?
The "HE3" suffix denotes RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance; "73" indicates bulk packaging in ammo-pack format (as opposed to tape-and-reel "B" or "C"). This makes the 1N6267HE3/73 appropriate for manual assembly, prototyping, and low-volume production where reel-based feeding is unnecessary.
How does the clamping voltage of the 1N6267HE3/73 compare to its breakdown voltage?
The 1N6267HE3/73 clamps to 10.5 V at its rated peak pulse current of 143 A, yielding a clamping ratio (VC/VBR) of approximately 1.55 using the typical VBR of 6.8 V. This low ratio confirms effective transient suppression, ensuring protected circuits experience minimal overvoltage even under worst-case 1500 W surges. The 1N6267HE3/73 achieves this with low incremental surge resistance and fast response.
Can the 1N6267HE3/73 replace older 1N6267A parts in existing designs?
Yes, the 1N6267HE3/73 is a direct functional and mechanical replacement for legacy 1N6267A parts, retaining identical electrical specifications, DO-201AD package dimensions, and pinout. The HE3/73 version adds AEC-Q101 qualification, RoHS compliance, and enhanced whisker resistance-making it suitable for drop-in upgrades in automotive and industrial applications without layout or schematic changes.
1N6267HE3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5.5V
- Voltage - Breakdown (Min):
- 6.12V
- Voltage - Clamping (Max) @ Ipp:
- 10.8V
- Current - Peak Pulse (10/1000µs):
- 139A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1N6267HE3/73 FAQ
1.How can I place an order for 1N6267HE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6267HE3/73 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 1N6267HE3/73 reliable?
The price and inventory of 1N6267HE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6267HE3/73 is usually 5 days.
3.What payment methods are accepted for 1N6267HE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6267HE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6267HE3/73?
1N6267HE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6267HE3/73 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 1N6267HE3/73?
For technical support, including 1N6267HE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6267HE3/73 requirements.
6.How does Aetrix verify that 1N6267HE3/73 is sourced from the original manufacturer or authorized distributors?
All 1N6267HE3/73 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 1N6267HE3/73 meets industry standards.
7.What is the process for return or replacement of 1N6267HE3/73?
All 1N6267HE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6267HE3/73, 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 1N6267HE3/73 part is unused and in its original packaging.
Return procedure for 1N6267HE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6267HE3/73 Tags
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