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Taiwan Semiconductor Corporation 1.5KE68A B0G
- Part No.:
- 1.5KE68A B0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE68A B0G.pdf
- Description:
- TVS DIODE 58.1VWM 92VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:4,282
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Product details
Overview
1.5KE68A B0G from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with nominal breakdown voltage 68 V, working stand-off voltage 58.1 V, clamping voltage 92.0 V at 17 A peak pulse current, and junction temperature range −55 °C to +175 °C - used for automotive ECU power rail protection against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the 1.5KE68A B0G datasheet, 1.5KE68A B0G pinout, 1.5KE68A B0G application, or 1.5KE68A B0G equivalent, key selection criteria include unidirectional clamping performance, 1500 W surge rating at 10/1000 μs, low leakage (<1 µA above 10 V), AEC-Q101 qualification eligibility, and DO-201 mechanical compatibility with high-reliability PCB layouts.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: it remains high-impedance below 58.1 V (VWM), breaks down sharply between 64.6 V and 71.4 V (VBR @ 1 mA), and clamps transients to ≤92.0 V at 17 A (IPP). Its fast response time (<1.0 ps from 0 V to VBR) ensures suppression before downstream IC damage occurs.
The device meets ISO 7637-2 immunity requirements for automotive electronics, supports steady-state power dissipation of 5 W at TL = 75 °C on 16 mm × 16 mm copper pad, and exhibits a VBR temperature coefficient of 0.104 %/°C - enabling stable clamping across extended ambient ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 58.1 V - maximum continuous reverse operating voltage; must exceed system nominal rail (e.g., 48 V automotive) to avoid leakage conduction during normal operation |
| VBR @ IT = 1 mA | 64.6–71.4 V - verified breakdown threshold; ensures reliable turn-on before damaging overvoltage reaches protected circuitry |
| VC @ IPP = 17 A | 92.0 V - clamped voltage under full 1500 W surge; defines worst-case stress seen by downstream components |
| PPK | 1500 W - peak pulse power handling at 10/1000 μs waveform; validates robustness against load dump and inductive switching events |
| ID @ VWM | <1 µA - ultra-low blocking leakage; prevents parasitic current draw in battery-critical systems |
| TJ Range | −55 °C to +175 °C - extended junction temperature capability; supports under-hood automotive placement without derating |
Pinout & Package
Package: DO-201 axial lead package with cathode band marking; RoHS-compliant, halogen-free molding compound (UL 94V-0), pure tin-plated leads (J-STD-002 solderable), 0.090 g typical weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground reference node | Connected to system ground plane; provides return path for clamped surge current |
| Cathode | Protected line input | Connected to power rail (e.g., 48 V supply); conducts when transient exceeds VBR, shunting energy to ground |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional clamping | Enables precise protection of positive-rail systems without reverse conduction risk during normal operation |
| 1500 W surge rating | Withstands automotive load dump pulses per ISO 7637-2 without degradation or failure |
| <1.0 ps response time | Activates before nanosecond-scale ESD or fast transients propagate into sensitive analog/digital ICs |
| AEC-Q101 qualification option | Supports automotive-grade reliability validation (B0G suffix indicates standard grade; H suffix denotes AEC-Q101) |
| DO-201 mechanical robustness | High thermal mass and lead-frame design sustain repeated 5 W steady-state dissipation at 75 °C board temperature |
Applications
| Automotive Power Rail Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: 48 V battery-fed control module exposed to ISO 7637-2 Pulse 2b (inductive switch-off) and Pulse 5a (load dump). IC Role / Device Role / Timing Role: Unidirectional TVS placed between 48 V rail and chassis ground; clamps transients within 1 ps to limit voltage to ≤92 V. Use Value: Prevents gate oxide rupture in MOSFET drivers and latch-up in microcontrollers during vehicle ignition cycling. | Use Scenario: 24 V DC input terminal of programmable logic controller subjected to field-wiring induced surges and EFT bursts. IC Role / Device Role / Timing Role: Primary shunt protector on power entry; absorbs 1500 W surges while maintaining <1 µA leakage at 24 V. Use Value: Eliminates need for secondary filtering stages, reducing BOM count and PCB area in DIN-rail mounted controllers. |
| LED Driver Overvoltage Clamp | Telecom Power Interface |
Use Scenario: Constant-current LED driver board powered from 36 V PoE-derived supply, vulnerable to cable-induced transients. IC Role / Device Role / Timing Role: Standoff-rated TVS on input rail; activates only during >64.6 V excursions, preserving efficiency during normal operation. Use Value: Maintains >95% driver efficiency while guaranteeing single-event survivability up to 1500 W surge energy. | Use Scenario: 48 V telecom power interface board receiving feed from central office, subject to lightning-induced longitudinal surges. IC Role / Device Role / Timing Role: First-line unidirectional clamp on DC input; coordinates with GDT and MOV in multi-stage protection architecture. Use Value: Limits let-through voltage to 92.0 V, enabling use of lower-voltage-rated DC-DC converters downstream. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64A | Lower PPK (600 W), smaller SMB package, VBR 67.8–75.1 V, VC 103 V @ 5.8 A | Not suitable for ISO 7637-2 Pulse 5a load dump; limited to lower-energy ESD/EFT scenarios | Select when space-constrained layout prioritizes footprint over surge margin |
| 1N6291A | Same die family but non-B0G marking; identical electrical specs, no green compound or date-code traceability | No difference in functional performance; lacks TSC's B0G production batch controls and green compound compliance | Select only if RoHS/halogen-free certification and traceable manufacturing are not required |
Compared with 1.5KE68A B0G, SMBJ64A trades 60% lower surge capacity for 60% smaller footprint, while 1N6291A matches all electrical parameters but omits B0G-specific process controls and environmental compliance documentation.
Availability
1.5KE68A B0G is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLCs, LED driver modules, and telecom power interfaces requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for 1.5KE68A B0G 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs, with global distribution and AEC-Q101 qualified product lines.
The 1.5KE series was designed specifically for high-energy transient suppression in automotive and industrial environments, emphasizing rugged DO-201 packaging, ISO 7637-2 compliance, and extended temperature operation.
FAQ
What is the clamping voltage of the 1.5KE68A B0G under maximum rated surge current?
The 1.5KE68A B0G clamps to 92.0 V at its specified peak impulse current of 17 A (10/1000 μs waveform). This value is measured per JEDEC test conditions and defines the upper voltage limit imposed on protected circuitry during a full 1500 W transient event. The 1.5KE68A B0G maintains this clamping performance across its full operating temperature range.
Is the 1.5KE68A B0G AEC-Q101 qualified?
The 1.5KE68A B0G is manufactured to the same die and process as AEC-Q101-qualified variants (e.g., 1.5KE68AH), but the B0G suffix itself denotes standard industrial grade, not certified automotive qualification. For AEC-Q101 compliance, specify the 'H' suffix version - the 1.5KE68A B0G does not carry formal AEC-Q101 certification.
What is the meaning of the 'B0G' suffix in 1.5KE68A B0G?
The 'B0G' suffix in 1.5KE68A B0G indicates Taiwan Semiconductor's standard production variant: 'B' denotes tape-and-reel packaging (1250 pcs), '0' is a revision placeholder, and 'G' specifies green (halogen-free) molding compound compliant with IEC 61249-2-21. It is not an AEC-Q101 marker - that requires the 'H' suffix. The 1.5KE68A B0G uses the same silicon die as qualified versions but lacks formal automotive qualification documentation.
Can the 1.5KE68A B0G be used in bidirectional configurations?
No - the 1.5KE68A B0G is strictly unidirectional. Its cathode band marking and electrical specifications (e.g., forward voltage of 3.5 V at 50 A) confirm single-polarity operation. For bidirectional protection, select the CA-suffixed variant (e.g., 1.5KE68CA) or a symmetric bipolar TVS. Using the 1.5KE68A B0G in reverse-biased mode risks permanent breakdown due to lack of reverse standoff rating.
What is the maximum steady-state power dissipation for the 1.5KE68A B0G?
The 1.5KE68A B0G has a steady-state power dissipation rating of 5 W at lead temperature TL = 75 °C, measured with 9.5 mm (0.375") lead lengths mounted on a 16 mm × 16 mm copper pad. This rating applies only to continuous DC or low-frequency conditions - transient surge capability (1500 W) is separate and non-repetitive. Exceeding 5 W continuously will exceed TJ max of 175 °C.
1.5KE68A B0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- 1.5KE
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 58.1V
- Voltage - Breakdown (Min):
- 64.6V
- Voltage - Clamping (Max) @ Ipp:
- 92V
- Current - Peak Pulse (10/1000µs):
- 17A
- 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:
- DO-201
1.5KE68A B0G FAQ
1.How can I place an order for 1.5KE68A B0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE68A B0G 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 1.5KE68A B0G reliable?
The price and inventory of 1.5KE68A B0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE68A B0G is usually 5 days.
3.What payment methods are accepted for 1.5KE68A B0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE68A B0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE68A B0G?
1.5KE68A B0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE68A B0G 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 1.5KE68A B0G?
For technical support, including 1.5KE68A B0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE68A B0G requirements.
6.How does Aetrix verify that 1.5KE68A B0G is sourced from the original manufacturer or authorized distributors?
All 1.5KE68A B0G 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 1.5KE68A B0G meets industry standards.
7.What is the process for return or replacement of 1.5KE68A B0G?
All 1.5KE68A B0G units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE68A B0G, 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 1.5KE68A B0G part is unused and in its original packaging.
Return procedure for 1.5KE68A B0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE68A B0G Tags
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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