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Vishay General Semiconductor - Diodes Division 1N6267AHE3/51
- Part No.:
- 1N6267AHE3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6267AHE3/51.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:5,636
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Product details
Overview
1N6267AHE3/51 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 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, 1500 W peak pulse power (10/1000 µs), and clamps transients to ≤10.5 V at 143 A peak pulse current - deployed in automotive power supply inputs and industrial sensor interface protection.
For engineers reviewing the 1N6267AHE3/51 datasheet, 1N6267AHE3/51 pinout, 1N6267AHE3/51 application, or 1N6267AHE3/51 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 75 °C/W), JEDEC 1.5KE package dimensions, and design-meaningful clamping behavior for ESD and lightning surge hardening.
Technical Context
This unidirectional TVS diode operates as a fast-acting shunt clamp, leveraging a glass-passivated silicon junction to achieve sub-nanosecond response time (<1 ns) and low incremental surge resistance. Its 1500 W peak pulse rating is defined under standardized 10/1000 µs waveform conditions with 0.01% duty cycle, and it sustains 200 A non-repetitive forward surge current (8.3 ms half-sine).
The device exhibits a positive temperature coefficient of breakdown voltage (+0.057 %/°C), enabling stable clamping across -55 °C to +175 °C operating junction range. Its 3.5 V maximum forward voltage at 100 A supports low-loss crowbar operation during high-current transients, while RoHS-compliant matte tin-plated leads meet J-STD-002 solderability and JESD 201 Class 2 whisker resistance requirements.
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 reliable overvoltage detection |
| VWM | 5.80 V - maximum continuous reverse voltage before significant leakage; sets safe DC operating margin |
| IPPM | 143 A at 10/1000 µs - quantifies surge current handling capacity without failure |
| VC | ≤10.5 V at IPPM - actual clamped voltage seen by protected IC; ensures downstream devices remain below absolute maximum ratings |
| PPPM | 1500 W - peak transient energy absorption capability per pulse, critical for lightning and inductive switch-off events |
| TJ max. | +175 °C - enables use in under-hood automotive and high-ambient industrial environments without derating |
| RθJA | 75 °C/W - thermal resistance from junction to ambient; informs heatsinking needs for repetitive surge scenarios |
Pinout & Package
Package: JEDEC DO-201AD (Case Style 1.5KE), molded epoxy body with axial leads; cathode indicated by color band; RoHS-compliant, AEC-Q101 qualified (HE3 suffix), 0.968 g unit weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction or clamping | Connected to protected line (e.g., VIN rail); must be routed with low-inductance path to ground reference |
| Cathode | Current exit point during clamping; marked with color band | Connected to system ground or low-impedance return; determines polarity-sensitive placement on PCB |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable, repeatable breakdown characteristics and long-term reliability under thermal cycling |
| 1500 W peak pulse power (10/1000 µs) | Supports robust protection against IEC 61000-4-5 Level 4 surges (4 kV line-to-ground) without degradation |
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics applications requiring zero defect field performance |
| Low clamping ratio (VC/VBR ≈ 1.47) | Minimizes stress on downstream components by limiting overshoot during transient suppression |
| Matte tin-plated leads, JESD 201 Class 2 | Prevents tin whisker growth in high-reliability systems, eliminating latent short-circuit risk over 15+ year lifetimes |
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: Primary shunt clamp on main power rail, activated within <1 ns to limit voltage to ≤10.5 V during 1500 W transients. Use Value: Prevents latch-up or gate oxide rupture in MCU power domains and CAN transceivers by maintaining VIN below 12 V absolute maximum. |
Use Scenario: 4–20 mA current loop sensors in factory automation subject to EFT (IEC 61000-4-4) and surge coupling. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional TVS placed across signal and return lines to clamp common-mode transients. Use Value: Maintains analog accuracy by limiting induced voltage spikes to <10.5 V, preventing ADC saturation and isolator damage. |
| Telecom DC Power Feeds | Consumer Device USB Port Protection |
|
Use Scenario: -48 V telecom rectifier outputs feeding base station control boards vulnerable to lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS connected anode-to-rail, cathode-to-ground to suppress negative-going transients on negative supply rails. Use Value: Clamps 10/1000 µs surges to ≤10.5 V while sustaining 143 A peak current, preserving PMIC and FPGA power integrity. |
Use Scenario: USB 2.0 data lines (D+/D−) and VBUS in portable audio devices subjected to human-body-model ESD (IEC 61000-4-2 ±8 kV contact). IC Role / Device Role / Timing Role: Secondary-level TVS placed after series impedance to limit residual voltage entering USB PHY. Use Value: Reduces ESD-induced reset events by clamping transients to ≤10.5 V before reaching sensitive transceiver inputs. |
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 | DO-214AA package (smaller footprint), 600 W PPPM, VC = 11.2 V at 53.3 A | Lower power handling; suited for space-constrained consumer PCBs with moderate surge exposure | Select SMBJ6.8A when board area is constrained and peak surge energy does not exceed 600 W |
| 1.5KE6.8A-E3/54 | Same 1.5KE package and electrical specs, but commercial-grade (non-AEC-Q101), E3-only qualification | Lacks automotive qualification; acceptable for industrial/commercial power supplies where AEC-Q101 is not mandated | Choose 1.5KE6.8A-E3/54 for cost-sensitive non-automotive designs requiring identical clamping performance |
Compared with 1N6267AHE3/51, SMBJ6.8A trades 50% lower surge power for 40% smaller footprint, while 1.5KE6.8A-E3/54 retains identical protection performance but omits AEC-Q101 validation - making 1N6267AHE3/51 the only option when automotive-grade reliability and 1500 W clamping are both required.
Availability
1N6267AHE3/51 is available at Aetrix Electronics and suitable for automotive power distribution modules, industrial sensor interface circuits, and telecom DC feed protection requiring stable component supply with AEC-Q101 assurance and full traceability.
Supply support for 1N6267AHE3/51 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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The 1N6267AHE3/51 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-energy transient suppression in harsh environments where AEC-Q101 compliance and 1500 W pulse robustness are mandatory.
FAQ
What is the breakdown voltage tolerance for 1N6267AHE3/51?
The 1N6267AHE3/51 has a specified breakdown voltage range of 6.45 V to 7.14 V at 10 mA test current, representing a ±5% tolerance around the nominal 6.8 V rating. This tight VBR window ensures consistent clamping onset across production lots and supports predictable system-level overvoltage margining in designs using the 1N6267AHE3/51.
Is 1N6267AHE3/51 suitable for bi-directional transient protection?
No, the 1N6267AHE3/51 is a unidirectional TVS diode, intended for DC circuits where polarity is fixed and only reverse-polarity transients require suppression. For bi-directional AC or floating signal line protection, Vishay offers the 1N6267CA variant (with CA suffix); the 1N6267AHE3/51 must be used with correct anode-cathode orientation relative to the protected rail.
What does the HE3 suffix indicate on 1N6267AHE3/51?
The HE3 suffix on 1N6267AHE3/51 denotes RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. Unlike standard E3 parts, HE3 devices undergo additional automotive-grade stress testing including temperature cycling, humidity bias, and mechanical shock - confirming suitability for under-hood and safety-critical vehicle subsystems using the 1N6267AHE3/51.
How does the clamping voltage of 1N6267AHE3/51 compare to its breakdown voltage?
The 1N6267AHE3/51 clamps transients to ≤10.5 V at its rated 143 A peak pulse current, yielding a clamping ratio (VC/VBR) of approximately 1.47. This low ratio - enabled by low incremental surge resistance - ensures minimal overvoltage stress on protected ICs, making the 1N6267AHE3/51 especially effective for safeguarding 5 V and 3.3 V logic interfaces against fast-rising surges.
Can 1N6267AHE3/51 be used in parallel for higher surge current handling?
Yes, multiple 1N6267AHE3/51 devices can be paralleled to increase total peak pulse current capacity, provided matched units are selected and layout symmetry (equal trace inductance/resistance) is maintained. However, derating is required: two units do not double IPPM due to dynamic impedance mismatch; typical parallel derating is 15–20%, so two 1N6267AHE3/51 units provide ~240 A rather than 286 A.
1N6267AHE3/51 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):
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1N6267AHE3/51 FAQ
1.How can I place an order for 1N6267AHE3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6267AHE3/51 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 1N6267AHE3/51 reliable?
The price and inventory of 1N6267AHE3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6267AHE3/51 is usually 5 days.
3.What payment methods are accepted for 1N6267AHE3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6267AHE3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6267AHE3/51?
1N6267AHE3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6267AHE3/51 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 1N6267AHE3/51?
For technical support, including 1N6267AHE3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6267AHE3/51 requirements.
6.How does Aetrix verify that 1N6267AHE3/51 is sourced from the original manufacturer or authorized distributors?
All 1N6267AHE3/51 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 1N6267AHE3/51 meets industry standards.
7.What is the process for return or replacement of 1N6267AHE3/51?
All 1N6267AHE3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6267AHE3/51, 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 1N6267AHE3/51 part is unused and in its original packaging.
Return procedure for 1N6267AHE3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6267AHE3/51 Tags
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