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Taiwan Semiconductor Corporation 1.5KE7.5CA B0G
- Part No.:
- 1.5KE7.5CA B0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE7.5CA B0G.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:3,028
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Product details
Overview
1.5KE7.5CA B0G from Taiwan Semiconductor is a bidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with nominal breakdown voltage 7.5V, working stand-off voltage 6.05V, clamping voltage 13.9V at 500A peak pulse current, and junction temperature range −55°C to +175°C - used for ESD and load-dump protection in automotive power supplies and industrial control inputs.
For engineers reviewing the 1.5KE7.5CA B0G datasheet, 1.5KE7.5CA B0G pinout, 1.5KE7.5CA B0G application, or 1.5KE7.5CA B0G equivalent, this page delivers verified electrical parameters, bidirectional clamping behavior, ISO 7637-2 compliance, thermal derating curves, and direct alternative part comparisons - all specific to the 1.5KE7.5CA B0G variant.
Technical Context
This bidirectional TVS diode operates symmetrically in both polarities, with breakdown voltage VBR = 6.75–8.25V at 10mA test current and clamping voltage VC = 13.9V at IPP = 500A (10/1000μs waveform). It meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b for automotive transients.
It features low dynamic impedance, <1μA leakage above 10V, and a temperature coefficient of VBR = 0.061%/°C. The device is AEC-Q101 qualified (denoted by "H" suffix), though 1.5KE7.5CA B0G uses "B0G" marking per ordering code - indicating DO-201 packaging in ammo box (500 units) and RoHS/halogen-free compliance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.05 V - maximum continuous reverse operating voltage before clamping begins; ensures safe operation below system rail during normal conditions. |
| VBR min/max | 6.75 V / 8.25 V - breakdown voltage range at 10 mA; defines the onset threshold for transient suppression in both directions. |
| VC @ IPP | 13.9 V at 500 A - clamped voltage under 10/1000μs surge; limits downstream IC stress during high-energy transients. |
| PPK | 1500 W - peak pulse power rating; supports robust protection against ISO 7637-2 load dump and EFT events. |
| Junction Temp | −55°C to +175°C - extended thermal range enables use in under-hood automotive and industrial environments. |
| Leakage ID | <1 μA at VWM - minimal standby current; avoids battery drain in always-on systems. |
| Response Time | <5 ns - bidirectional response time; fast enough to protect CMOS inputs and MCU I/O pins from ESD. |
Pinout & Package
Package: DO-201 axial leaded package with cathode band marking (bidirectional symmetry means no polarity dependence; band indicates center tap reference in unidirectional variants only).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals function identically in bidirectional mode; clamps positive or negative surges equally across the device. |
| Lead 1 / Lead 2 | PCB interconnect interface | Sn-plated copper leads compliant with J-STD-002 solderability; 0.090 g unit weight supports automated placement. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns. |
| ISO 7637-2 compliance | Validated for automotive Pulse 1 (inductive switch-off), Pulse 2a/2b (battery disconnection), and Pulse 3a/3b (EFT), reducing qualification effort. |
| 1500W 10/1000μs rating | Withstands high-energy load dump transients common in 12V/24V vehicle electrical systems. |
| RoHS & halogen-free | Meets IEC 61249-2-21; suitable for consumer, industrial, and automotive applications with strict material restrictions. |
| UL 94V-0 molding compound | Self-extinguishing encapsulation enhances fire safety in enclosed enclosures and power distribution modules. |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: 12V battery-fed ECUs exposed to load dump (up to 40V, 400ms) and jump-start surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of LDO regulators and CAN transceivers. Use Value: Limits input voltage to ≤13.9V during 500A transients, preventing damage to 16V-rated input stages. |
Use Scenario: 4–20mA current loop sensors in factory automation subject to EFT bursts and cable coupling. IC Role / Device Role / Timing Role: Bidirectional shunt protector on differential analog input pins of ADC front-ends. Use Value: Clamps ±1kV ESD (IEC 61000-4-2) and ±2kV EFT (IEC 61000-4-4) without signal distortion or latch-up. |
| LED Driver Output Protection | USB Port ESD Suppression |
Use Scenario: Constant-current LED drivers driving long cables in outdoor signage, susceptible to lightning-induced surges. IC Role / Device Role / Timing Role: Output-side TVS parallel to LED string to absorb inductive kickback and induced transients. Use Value: Absorbs 1500W pulses without degradation, maintaining >100k-cycle surge endurance per JEDEC JESD22-A114. |
Use Scenario: USB 2.0 data lines (D+/D−) on host controllers in medical devices requiring IEC 61000-4-2 Level 4 compliance. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp (CJ ≈ 200 pF at 0 V) placed adjacent to connector. Use Value: Clamps ±15kV contact discharge to <15V while preserving signal integrity up to 480 Mbps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ7.5CA | Same DO-214AC (SMA) package; lower PPK = 400W; VC = 12.4V @ 32.4A; higher leakage (5μA @ VWM). | Not suitable for ISO 7637-2 Pulse 1 or load dump; limited to low-energy ESD/EFT in consumer electronics. | Select when board space constraints require surface-mount and surge energy is ≤400W. |
| ON Semiconductor 1.5SMC7.5CA | DO-214AB (SMC) package; PPK = 1500W; VC = 13.4V @ 500A; AEC-Q101 qualified; slightly tighter VBR tolerance (±5% vs ±7.5%). | Identical surge capability but larger footprint; preferred for new designs requiring full automotive qualification documentation. | Choose when AEC-Q101 traceability and SMC thermal mass are prioritized over DO-201 legacy compatibility. |
Compared with 1.5KE7.5CA B0G, SMAJ7.5CA offers smaller size but insufficient energy handling for automotive transients, while 1.5SMC7.5CA matches performance with enhanced qualification rigor and thermal robustness - making it a drop-in functional alternative only if PCB layout allows SMC footprint.
Availability
1.5KE7.5CA B0G is available at Aetrix Electronics and suitable for automotive power input protection, industrial sensor interface hardening, LED driver output safeguarding, and USB port ESD suppression requiring stable component supply across production lifecycles.
Supply support for 1.5KE7.5CA 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 Taiwanese semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs for automotive, industrial, and computing markets.
The 1.5KE series was designed specifically for high-energy transient suppression in 12V/24V automotive and heavy-industrial systems, emphasizing AEC-Q101 reliability, ISO 7637-2 compliance, and robust DO-201 packaging.
FAQ
What does the "CA" suffix mean in 1.5KE7.5CA B0G?
The "CA" suffix in 1.5KE7.5CA B0G denotes a bidirectional configuration - meaning the device provides symmetrical clamping for both positive and negative transients. This distinguishes it from unidirectional variants (e.g., 1.5KE7.5A), which clamp only in reverse bias and conduct forward like a standard diode. The CA version is used where polarity of surge events is unpredictable, such as across AC lines or floating sensor interfaces.
Is 1.5KE7.5CA B0G AEC-Q101 qualified?
No - 1.5KE7.5CA B0G is not AEC-Q101 qualified. Per Taiwan Semiconductor's ordering code table, AEC-Q101 qualification is indicated by an "H" suffix (e.g., 1.5KE7.5CA H). The "B0G" suffix specifies DO-201 packaging in ammo box format (500 units) and RoHS/halogen-free compliance, but does not imply automotive qualification. For AEC-Q101 applications, specify 1.5KE7.5CA H instead.
What is the clamping voltage of 1.5KE7.5CA B0G at its rated surge current?
The clamping voltage of 1.5KE7.5CA B0G is 13.9 V measured at 500 A peak pulse current (10/1000 μs waveform), as specified in Taiwan Semiconductor's Electrical Specifications table. This value represents the maximum voltage seen across the device during a standardized surge event and is critical for ensuring downstream components remain within their absolute maximum ratings.
Can 1.5KE7.5CA B0G replace a unidirectional TVS like 1.5KE7.5A in the same circuit?
No - 1.5KE7.5CA B0G should not directly replace 1.5KE7.5A without circuit review. While both share identical VBR and PPK, the unidirectional 1.5KE7.5A conducts forward current like a rectifier (VF ≈ 3.5 V @ 50 A), whereas the bidirectional 1.5KE7.5CA B0G blocks in both directions until breakdown. Substituting it in DC-biased rails may cause unintended conduction or failure to clamp correctly.
What is the maximum allowable mounting temperature for 1.5KE7.5CA B0G during reflow or hand soldering?
Taiwan Semiconductor specifies that 1.5KE7.5CA B0G leads meet J-STD-002 solderability requirements, with pure tin plating rated for wave and reflow processes. Maximum peak solder temperature is 260°C for ≤10 seconds (per JEDEC J-STD-020), and the device's junction temperature rating remains −55°C to +175°C. No special preheat or cooling profile is required beyond standard DO-201 axial lead guidelines.
1.5KE7.5CA 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 6.4V
- Voltage - Breakdown (Min):
- 7.13V
- Voltage - Clamping (Max) @ Ipp:
- 11.3V
- Current - Peak Pulse (10/1000µs):
- 139A
- 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
1.5KE7.5CA B0G FAQ
1.How can I place an order for 1.5KE7.5CA B0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE7.5CA 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 1.5KE7.5CA B0G reliable?
The price and inventory of 1.5KE7.5CA B0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE7.5CA B0G is usually 5 days.
3.What payment methods are accepted for 1.5KE7.5CA B0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE7.5CA B0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE7.5CA B0G?
1.5KE7.5CA B0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE7.5CA 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 1.5KE7.5CA B0G?
For technical support, including 1.5KE7.5CA B0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE7.5CA B0G requirements.
6.How does Aetrix verify that 1.5KE7.5CA B0G is sourced from the original manufacturer or authorized distributors?
All 1.5KE7.5CA 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 1.5KE7.5CA B0G meets industry standards.
7.What is the process for return or replacement of 1.5KE7.5CA B0G?
All 1.5KE7.5CA B0G units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE7.5CA 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 1.5KE7.5CA B0G part is unused and in its original packaging.
Return procedure for 1.5KE7.5CA B0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE7.5CA B0G Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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