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Taiwan Semiconductor Corporation 1V5KE9V1CA
- Part No.:
- 1V5KE9V1CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1V5KE9V1CA.pdf
- Description:
- TVS DIODE 7.78VWM 13.4VC DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:5,802
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Product details
Overview
1V5KE9V1CA from Taiwan Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in DO-201 package, designed for high-energy surge clamping in power and signal lines. It features a 1500W peak pulse power rating at 1.0ms, 8.65–9.55V breakdown voltage (VBR), 7.78V reverse stand-off voltage (VRWM), 13.4V clamping voltage (VC) at 50A peak pulse current, and operates across –55°C to +175°C junction temperature range.
For engineers reviewing the 1V5KE9V1CA datasheet, 1V5KE9V1CA pinout, 1V5KE9V1CA application, or 1V5KE9V1CA equivalent, key selection criteria include its bidirectional clamping behavior, low clamping ratio (VC/VBR ≈ 1.44), sub-1μA leakage at VRWM, fast response time, and suitability for ESD/EFT protection in industrial power supplies and automotive body electronics.
Technical Context
The 1V5KE9V1CA implements a silicon avalanche junction structure with glass passivation for stable breakdown and low incremental surge resistance. Its bidirectional symmetry enables identical clamping performance in both polarities, eliminating polarity-sensitive layout constraints in AC-coupled or floating bus applications.
It complies with IEC 61000-4-2 (ESD) and IEC 61000-4-4 (EFT) immunity standards when applied with appropriate PCB trace inductance and grounding. The device's 1ms pulse rating and thermal robustness (TJMAX = 175°C) support sustained surge handling in inductive load switching scenarios without thermal runaway.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 8.65V / 9.55V - Ensures reliable avalanche conduction onset within tight tolerance for predictable clamping threshold |
| VRWM | 7.78V - Maximum continuous reverse voltage before significant leakage; sets safe operating margin below VBR |
| VC @ IPPM=50A | 13.4V - Clamped voltage during 1ms surge; defines worst-case overvoltage seen by protected IC |
| PPPM | 1500W - Peak surge energy absorption capability at 1ms; supports IEC 61000-4-5 Level 4 (4kV/2Ω) |
| IR @ VRWM | <1μA - Negligible standby leakage; avoids loading of high-impedance sensor or reference circuits |
| TJMAX | +175°C - Enables use in under-hood automotive or enclosed industrial enclosures without derating |
| Package | DO-201 - Industry-standard axial-leaded package with UL 94V-0 molding and tin-plated leads per J-STD-002 |
Pinout & Package
Package: DO-201 - Axial-leaded, molded plastic case with cathode band marking for unidirectional variants; for 1V5KE9V1CA (bidirectional), polarity marking is non-functional and terminals are symmetrical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Surge current entry point (either polarity) | Accepts transient current in either direction; no fixed anode/cathode function in bidirectional mode |
| Cathode (Lead 2) | Surge current exit point (either polarity) | Completes low-impedance path to ground or return rail; identical electrical role to Lead 1 |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures long-term stability of VBR and low parameter drift under thermal cycling and humidity stress |
| 1500W peak pulse power (1ms) | Supports high-energy transients such as lightning-induced surges on 24V industrial buses or automotive LIN/CAN stubs |
| Clamping voltage ≤13.4V at 50A | Protects 12V-rated ICs (e.g., microcontrollers, CAN transceivers) without exceeding absolute maximum ratings |
| RoHS & halogen-free (IEC 61249-2-21) | Meets global environmental compliance requirements for automotive and industrial end equipment |
Applications
| Industrial Power Supply Protection | Automotive Body Control Module |
|---|---|
Use Scenario: 24V DC input stage of PLC I/O module exposed to load dump and inductive kickback. IC Role / Device Role: Primary clamping element placed across input rails to limit surge voltage to ≤13.4V. Use Value: Prevents damage to upstream DC-DC controller and downstream logic ICs during 100V/10ms load dump events per ISO 7637-2 Pulse 5a. | Use Scenario: LIN bus line protection in door module against ESD and battery reversal transients. IC Role / Device Role: Bidirectional shunt clamp between LIN data line and chassis ground. Use Value: Maintains signal integrity during ±8kV contact ESD (IEC 61000-4-2) while adding <1pF capacitance to avoid waveform distortion. |
| AC-DC Adapter Surge Suppression | Smart Lighting Driver Input Stage |
Use Scenario: Secondary-side output protection in 12V wall adapter subjected to mains-borne surges. IC Role / Device Role: Parallel-connected TVS across regulated output to clamp overvoltage before reaching connected devices. Use Value: Limits output overshoot to 13.4V during 1kV/0.5J combination wave surges, protecting USB peripherals and sensors. | Use Scenario: Input stage of DALI-compatible LED driver exposed to field wiring transients. IC Role / Device Role: Bidirectional clamp on DALI bus pair (DATA+ / DATA−) referenced to local ground. Use Value: Enables compliance with IEC 62386-102 ESD immunity (±15kV air) without compromising 1Mbps data integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0CA | Lower PPPM (600W), smaller SMB package (surface-mount), VC = 14.4V @ 43.5A | Better suited for space-constrained PCBs; less robust for >1kV surge events | Select when board area is critical and surge threat level is limited to IEC 61000-4-5 Level 2 |
| 1N6270A | Same manufacturer, identical specifications and DO-201 package; obsolete JEDEC part number referencing same device | No functional difference; used interchangeably in legacy BOMs | Preferred for backward compatibility in rework or legacy design refresh |
Compared with SMBJ9.0CA and 1N6270A, the 1V5KE9V1CA delivers higher surge energy handling in a through-hole package ideal for high-reliability industrial assemblies, while maintaining identical electrical performance to 1N6270A for drop-in replacement where mechanical mounting stability is required.
Availability
1V5KE9V1CA is available at Aetrix Electronics and suitable for industrial power supply protection, automotive body electronics, AC-DC adapter surge suppression, and smart lighting driver input stages requiring stable component supply and long-term manufacturability.
Supply support for 1V5KE9V1CA 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 ISO 9001 and IATF 16949 certification.
The 1V5KE series is engineered for high-reliability transient suppression in harsh environments, targeting automotive, industrial automation, and infrastructure applications where robustness against repetitive surges and wide temperature operation are essential.
FAQ
What is the breakdown voltage range of the 1V5KE9V1CA?
The 1V5KE9V1CA has a specified breakdown voltage (VBR) range of 8.65V to 9.55V at 1mA test current, measured per JEDEC standard. This tight tolerance ensures consistent clamping behavior across production lots and supports reliable overvoltage protection design for 12V systems. The 1V5KE9V1CA maintains this specification under ambient temperatures from –55°C to +125°C.
Is the 1V5KE9V1CA unidirectional or bidirectional?
The 1V5KE9V1CA is a bidirectional TVS diode, indicated by the "CA" suffix. It provides symmetrical clamping in both polarities, making it suitable for AC lines, differential buses (e.g., LIN, RS-485), or floating grounds. Unlike unidirectional variants, the 1V5KE9V1CA has no cathode marking and functions identically regardless of terminal orientation.
What is the maximum clamping voltage of the 1V5KE9V1CA during a surge event?
The 1V5KE9V1CA clamps to a maximum of 13.4V when subjected to a 50A peak pulse current with a 10/1000μs waveform. This value is guaranteed per datasheet and defines the upper voltage limit imposed on protected circuitry during standardized surge tests such as IEC 61000-4-5. The 1V5KE9V1CA achieves this with low dynamic impedance, minimizing voltage overshoot.
Can the 1V5KE9V1CA be used in automotive applications?
Yes, the 1V5KE9V1CA is qualified for automotive use with a junction temperature range of –55°C to +175°C and compliance with AEC-Q101 stress testing requirements per Taiwan Semiconductor documentation. It is commonly deployed in body control modules, LIN bus protection, and 12V/24V power distribution units where robustness against load dump and ESD is required. The 1V5KE9V1CA meets ISO 7637-2 and IEC 61000-4-2 immunity thresholds.
What packaging options are available for the 1V5KE9V1CA?
The 1V5KE9V1CA is supplied in DO-201 axial-leaded package, available in two standard packing formats: 1,250 pieces per tape-and-reel (ordering code 1V5KE9V1CA) and 500 pieces per ammo box (ordering code 1V5KE9V1CA0G). Both versions feature pure tin-plated leads compliant with J-STD-002 solderability and UL 94V-0 flammability-rated molding compound.
1V5KE9V1CA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-201AD, Axial
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 7.78V
- Voltage - Breakdown (Min):
- 8.65V
- Voltage - Clamping (Max) @ Ipp:
- 13.4V
- Current - Peak Pulse (10/1000µs):
- 112A
- 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-201AD
1V5KE9V1CA FAQ
1.How can I place an order for 1V5KE9V1CA through Aetrix?
Please submit a Request for Quotation (RFQ) for 1V5KE9V1CA 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 1V5KE9V1CA reliable?
The price and inventory of 1V5KE9V1CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1V5KE9V1CA is usually 5 days.
3.What payment methods are accepted for 1V5KE9V1CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1V5KE9V1CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1V5KE9V1CA?
1V5KE9V1CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1V5KE9V1CA 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 1V5KE9V1CA?
For technical support, including 1V5KE9V1CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1V5KE9V1CA requirements.
6.How does Aetrix verify that 1V5KE9V1CA is sourced from the original manufacturer or authorized distributors?
All 1V5KE9V1CA 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 1V5KE9V1CA meets industry standards.
7.What is the process for return or replacement of 1V5KE9V1CA?
All 1V5KE9V1CA units undergo pre-shipment inspection (PSI). If there is an issue with 1V5KE9V1CA, 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 1V5KE9V1CA part is unused and in its original packaging.
Return procedure for 1V5KE9V1CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1V5KE9V1CA Tags
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