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Taiwan Semiconductor Corporation 1.5KE7.5CAHR0G
- Part No.:
- 1.5KE7.5CAHR0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE7.5CAHR0G.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:2,930
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Product details
Overview
1.5KE7.5CAHR0G from Taiwan Semiconductor is a bidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with 7.5V nominal breakdown voltage (VBR min/max = 6.75V/8.25V at IT = 10mA), 6.05V working stand-off voltage (VWM), and 134V clamping voltage (VC) at 500A peak impulse current. It protects automotive and industrial power rails against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the 1.5KE7.5CAHR0G datasheet, 1.5KE7.5CAHR0G pinout, 1.5KE7.5CAHR0G application, or 1.5KE7.5CAHR0G equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, 10/1000μs surge rating, low dynamic impedance, and DO-201 mechanical compatibility with high-reliability PCB layouts.
Technical Context
This bidirectional TVS diode operates symmetrically in both polarities, delivering consistent clamping performance without polarity dependency. Its junction structure enables sub-nanosecond response (<5.0ns from 0V to VBR) and low leakage (<1μA at 6.05V), critical for protecting CAN, LIN, and sensor interfaces in automotive ECUs.
The device meets ISO 7637-2 immunity requirements across all five pulse types (Pulse 1, 2a, 2b, 3a, 3b) and supports steady-state power dissipation of 5W at TL = 75°C on a 16mm × 16mm copper pad - enabling robust placement near DC-DC converters and motor drivers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT = 10mA | 6.75V min / 8.25V max - defines precise voltage threshold where clamping initiates under standard test conditions |
| VWM | 6.05V - maximum continuous reverse voltage before significant leakage; ensures safe operation below system rail |
| VC @ IPP = 500A | 134V - clamped voltage during 10/1000μs surge; determines protected circuit's peak stress level |
| PPK | 1500W - peak pulse power handling per JEDEC standard; validates survivability against severe ESD/EFT events |
| TJ max | +175°C - extended junction temperature range supports under-hood automotive deployment |
| Package | DO-201 - industry-standard axial leaded package with UL 94V-0 molding compound and pure tin plating |
| AEC-Q101 | Qualified - certified for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
DO-201 package: axial-leaded, cylindrical epoxy body with cathode band marking for unidirectional variants; 1.5KE7.5CAHR0G is bidirectional and marked with "CA" suffix - no polarity marking required. Leads are pure tin plated, solderable per J-STD-002, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity) | Accepts reverse surge current during negative transients; symmetrical with Cathode for bidirectional operation |
| Cathode | Transient current entry (positive polarity) | Accepts forward surge current during positive transients; identical clamping behavior as Anode due to CA construction |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR and VC in both directions - eliminates need for polarity-aware layout in differential or AC-coupled lines |
| AEC-Q101 qualification | Validated for automotive under-hood use - includes HTOL, temperature cycling, and ESD robustness per stress test plan |
| ISO 7637-2 compliance | Passes Pulse 1 (inductive load dump), Pulse 2a/2b (battery disconnect), and Pulse 3a/3b (switching noise) - covers full vehicle-level EMC immunity |
| Low dynamic impedance | Enables tight VC tolerance (134V @ 500A) - minimizes overvoltage exposure to downstream ICs like microcontrollers and transceivers |
| Fast response time | <5.0ns rise-to-clamp - intercepts fast-rising EFT bursts before sensitive analog front-ends saturate |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12V battery-supplied ECUs from load dump and alternator transients. IC Role / Device Role / Timing Role: Bidirectional TVS placed at main power input to clamp surges before DC-DC regulators and MCU power supplies. Use Value: Withstands 1500W 10/1000μs pulses and meets ISO 7637-2 Pulse 1/2a/2b - prevents brownout resets and latch-up in safety-critical modules. | Use Scenario: Shielding 4–20mA current loop transmitters from field-induced surges in factory automation. IC Role / Device Role / Timing Role: Placed across loop terminals to shunt induced transients while maintaining signal integrity during normal operation. Use Value: 6.05V VWM allows compatibility with 24V loop supplies; 134V VC limits stress on op-amps and ADC inputs during 1kV EFT events. |
| Automotive CAN Bus Protection | LED Driver Input Stage Protection |
Use Scenario: Safeguarding CAN FD transceivers connected to vehicle chassis ground against ground bounce and ESD. IC Role / Device Role / Timing Role: Bidirectional TVS mounted directly at connector pins to suppress common-mode transients before differential receiver inputs. Use Value: Symmetrical clamping ensures equal protection on CAN_H and CAN_L; <5.0ns response preserves signal edge fidelity up to 5 Mbps. | Use Scenario: Preventing failure of constant-current LED drivers exposed to 12V/24V supply line transients in outdoor signage. IC Role / Device Role / Timing Role: Installed between input capacitor and driver IC to absorb switching spikes and lightning-induced surges. Use Value: 1500W PPK rating handles repetitive 10/1000μs surges from inductive loads; DO-201 package fits high-density thermal pads near MOSFETs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.5CA | DO-214AA (SMB) package, 7.5V VBR, 1000W PPK, lower IPP (100A vs. 500A) | Lower surge capacity; suited for space-constrained consumer boards, not automotive load dump | Select when board area is limited and peak surge energy is ≤1000W; verify thermal relief for SMB footprint |
| 1.5SMC7.5CA | DO-214AB (SMC) package, same 7.5V VBR, 1500W PPK, but higher VC (12.4V vs. 134V) | Clamps at lower voltage - better for low-voltage logic rails; lacks AEC-Q101 certification | Choose for non-automotive industrial systems needing tighter clamping; confirm absence of automotive qualification requirements |
Compared with SMBJ7.5CA and 1.5SMC7.5CA, 1.5KE7.5CAHR0G delivers higher surge current handling (500A), AEC-Q101 qualification, and DO-201 mechanical robustness - making it the preferred choice for automotive power rail and industrial equipment where reliability under extreme transients is mandatory.
Availability
1.5KE7.5CAHR0G is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface protection, and LED driver input stage hardening requiring stable component supply and long-term lifecycle assurance.
Supply support for 1.5KE7.5CAHR0G 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 for automotive, industrial, and computing markets.
The 1.5KE series was designed specifically for high-energy transient suppression in harsh environments - emphasizing AEC-Q101 compliance, ISO 7637-2 immunity, and rugged DO-201 packaging for under-hood and factory-floor deployment.
FAQ
What does the 'CA' suffix in 1.5KE7.5CAHR0G indicate?
The 'CA' suffix in 1.5KE7.5CAHR0G denotes a bidirectional configuration - meaning the device provides symmetrical transient suppression in both polarities. Unlike unidirectional 'A' variants, 1.5KE7.5CAHR0G has no cathode marking and clamps identically for positive and negative surges, making it ideal for AC lines, differential buses like CAN, and floating power domains where polarity cannot be guaranteed.
Is 1.5KE7.5CAHR0G qualified for automotive applications?
Yes, 1.5KE7.5CAHR0G is AEC-Q101 qualified - verified for automotive-grade reliability including high-temperature operating life (HTOL), temperature cycling, and electrostatic discharge (ESD) robustness. The 'H' in the part number confirms AEC-Q101 compliance, and its ISO 7637-2 Pulse 1/2a/2b/3a/3b immunity makes it suitable for engine control units, body controllers, and ADAS power inputs.
What is the clamping voltage of 1.5KE7.5CAHR0G at rated surge current?
The clamping voltage (VC) of 1.5KE7.5CAHR0G is 134V at 500A peak impulse current (IPP), measured under the standard 10/1000μs waveform. This value represents the maximum voltage seen by downstream circuitry during a full-rated surge event - a critical parameter for ensuring connected ICs remain within their absolute maximum ratings.
How does the DO-201 package of 1.5KE7.5CAHR0G affect thermal performance?
The DO-201 package of 1.5KE7.5CAHR0G supports 5W steady-state power dissipation at TL = 75°C when mounted on a 16mm × 16mm copper pad, per datasheet Fig.2 derating curve. Its axial leads and UL 94V-0 epoxy body provide mechanical stability and flame resistance, while pure tin plating ensures reliable solder joint formation - essential for high-vibration automotive environments.
Can 1.5KE7.5CAHR0G replace unidirectional TVS diodes in existing designs?
No - 1.5KE7.5CAHR0G is strictly bidirectional and must not replace unidirectional TVS diodes (e.g., 1.5KE7.5A) without circuit review. Unidirectional parts have asymmetric conduction (forward-biased anode path), while 1.5KE7.5CAHR0G conducts equally in both directions. Substitution requires verifying that reverse-bias leakage and clamping symmetry align with system-level requirements, especially in DC-biased rails.
1.5KE7.5CAHR0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- 1.5KE
- Packaging:
- Tape & Reel (TR)
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201
1.5KE7.5CAHR0G FAQ
1.How can I place an order for 1.5KE7.5CAHR0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE7.5CAHR0G 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 1.5KE7.5CAHR0G reliable?
The price and inventory of 1.5KE7.5CAHR0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE7.5CAHR0G is usually 5 days.
3.What payment methods are accepted for 1.5KE7.5CAHR0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE7.5CAHR0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE7.5CAHR0G?
1.5KE7.5CAHR0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE7.5CAHR0G 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 1.5KE7.5CAHR0G?
For technical support, including 1.5KE7.5CAHR0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE7.5CAHR0G requirements.
6.How does Aetrix verify that 1.5KE7.5CAHR0G is sourced from the original manufacturer or authorized distributors?
All 1.5KE7.5CAHR0G 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 1.5KE7.5CAHR0G meets industry standards.
7.What is the process for return or replacement of 1.5KE7.5CAHR0G?
All 1.5KE7.5CAHR0G units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE7.5CAHR0G, 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 1.5KE7.5CAHR0G part is unused and in its original packaging.
Return procedure for 1.5KE7.5CAHR0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE7.5CAHR0G Tags
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ESD9B5.0ST5G
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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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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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