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Taiwan Semiconductor Corporation 1V5KE75CA
- Part No.:
- 1V5KE75CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1V5KE75CA.pdf
- Description:
- TVS DIODE 64.1VWM 104VC DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:9,142
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Product details
Overview
1V5KE75CA from Taiwan Semiconductor is a bidirectional transient voltage suppressor (TVS) diode designed for high-energy surge protection in DC power lines and signal interfaces. It features a 71.3–78.8 V breakdown voltage (VBR), 64.1 V reverse stand-off voltage (VRWM), 1500 W peak pulse power (1 ms), 14.6 A peak pulse current (IPPM), and clamps to 104 V at rated surge, making it suitable for protecting industrial I/O ports against lightning-induced surges.
For engineers reviewing the 1V5KE75CA datasheet, 1V5KE75CA pinout, 1V5KE75CA application, or 1V5KE75CA equivalent, key selection considerations include its DO-201 package compatibility, bipolar operation without polarity sensitivity, low clamping ratio (VC/VBR ≈ 1.32), sub-5 µA leakage at 64.1 V, and compliance with IEC 61000-4-2/4-4/4-5 ESD/EFT/surge immunity standards.
Technical Context
This TVS operates as a voltage-clamped shunt protector: when transient voltage exceeds VRWM (64.1 V), it avalanches rapidly (<1 ns response) to divert surge current away from downstream circuitry. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low dynamic impedance (ZPP ≈ 7.1 Ω, derived from VC – VBR(min) / IPPM).
Rated for continuous operation from –55°C to +175°C, the device sustains 5 W steady-state power at 75°C lead temperature and withstands 200 A unidirectional forward surge (8.3 ms half-sine). Though bidirectional, its symmetrical VBR and VC curves eliminate need for orientation during PCB placement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 71.3 V / 78.8 V - Ensures reliable avalanche initiation above normal operating voltage while maintaining margin against false triggering |
| VRWM | 64.1 V - Maximum continuous DC or RMS voltage the device blocks without significant leakage |
| VC @ IPPM | 104 V - Clamped voltage during 1500 W, 1 ms surge; defines worst-case overvoltage seen by protected IC |
| IPPM | 14.6 A - Peak current diverted during standardized 10/1000 µs surge waveform |
| PPPM | 1500 W - Surge energy handling capacity per IEC 61000-4-5 Level 4 (4 kV line-to-line) |
| IR @ VRWM | <5 µA - Minimal standby power loss and negligible loading on 64 V supply rails |
| TJ(max) | +175 °C - Enables use in under-hood automotive or high-temperature industrial enclosures |
Pinout & Package
Package: DO-201 axial-leaded package with cathode band marking (for unidirectional variants); bidirectional 1V5KE75CA has no polarity marking and functions identically in either orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (reversible) | Bidirectional avalanche junction | Either lead serves as input/output; no PCB layout polarity constraint; symmetric clamping in both directions |
| Leads (tin-plated) | Thermal and current path | Supports 200 A surge conduction; solderable per J-STD-002; meets JEDEC whisker Class 2 |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Stable VBR over lifetime and temperature; eliminates surface contamination drift |
| 1500 W peak pulse power (1 ms) | Withstands IEC 61000-4-5 4 kV surge on 2 Ω source impedance without failure |
| Clamping voltage ≤104 V | Limits protected circuit stress to safe margin below 120 V-rated components |
| Low incremental surge resistance | ~7.1 Ω (calculated), enabling efficient energy diversion with minimal voltage overshoot |
| RoHS & halogen-free (IEC 61249-2-21) | Complies with EU environmental directives and enables use in green manufacturing |
Applications
| Industrial PLC Analog Input Protection | Automotive Body Control Module (BCM) Power Line |
|---|---|
Use Scenario: 0–10 V or 4–20 mA sensor inputs exposed to field wiring surges in factory automation cabinets. IC Role / Device Role / Timing Role: Shunt clamping TVS placed before precision op-amp input stage to limit overvoltage before front-end attenuation. Use Value: Prevents op-amp latch-up or damage from 1 kV/500 A lightning-induced transients on long sensor cables. |
Use Scenario: 12 V battery-supplied BCM modules subjected to load-dump (ISO 7637-2 Pulse 5a) and jump-start spikes. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main VCC rail upstream of LDO regulators and microcontrollers. Use Value: Clamps 104 V peak during 1500 W surge, keeping downstream 16 V-rated regulators within safe operating area. |
| Telecom DSL Line Interface | Smart Meter AC Mains Input Stage |
Use Scenario: Protection of ADSL/VDSL line drivers and receivers connected to outside plant copper pairs. IC Role / Device Role / Timing Role: Bidirectional TVS across differential pair (tip/ring) to suppress longitudinal surges induced by nearby lightning strikes. Use Value: Symmetric clamping preserves signal integrity while limiting common-mode overvoltage to <104 V, meeting GR-1089-CORE Level 3 requirements. |
Use Scenario: Secondary surge suppression after MOV-based primary protection on 230 VAC input rectifier output. IC Role / Device Role / Timing Role: Fast-response TVS across bulk capacitor to absorb residual fast-rising transients missed by slower MOVs. Use Value: Responds in <1 ns to clamp 100–500 V nanosecond spikes, preventing electrolytic capacitor overvoltage rupture. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ75CA (Bourns) | Same VRWM (64.1 V), identical DO-214AA package, but lower PPPM = 600 W and higher VC = 121 V | Insufficient for IEC 61000-4-5 Level 4; suited only for Level 2/3 or low-energy signal lines | Select 1V5KE75CA when 1500 W surge rating and 104 V clamping are mandatory |
| 1N6292 (ON Semiconductor) | Same JEDEC 1N6292 designation, identical VBR/VRWM/VC specs, but legacy DO-201 package with non-RoHS lead finish | Not compliant with current RoHS/halogen-free mandates; requires legacy procurement approval | Choose 1V5KE75CA for full environmental compliance and modern tin-plated leads |
Compared with SMBJ75CA and 1N6292, the 1V5KE75CA delivers superior surge robustness (1500 W vs. 600 W), tighter clamping (104 V vs. 121 V), and full halogen-free/RoHS compliance-making it the preferred choice for new industrial and automotive designs requiring certified surge immunity.
Availability
1V5KE75CA is available at Aetrix Electronics and suitable for industrial PLC analog inputs, automotive body control modules, telecom DSL line interfaces, and smart meter AC mains input stages requiring stable component supply and full environmental compliance.
Supply support for 1V5KE75CA 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 was engineered specifically for high-reliability industrial and automotive surge protection, emphasizing stable VBR, low clamping ratio, and extended temperature operation up to +175°C.
FAQ
What is the maximum clamping voltage of the 1V5KE75CA under a 1500 W surge?
The 1V5KE75CA clamps to a maximum of 104 V when subjected to its rated 1500 W, 1 ms peak pulse power condition. This value is measured at IPPM = 14.6 A using the standard 10/1000 µs waveform. The clamping voltage directly determines the overvoltage stress imposed on downstream components, so 104 V establishes the upper voltage limit that protected circuitry must tolerate during surge events.
Is the 1V5KE75CA truly bidirectional, and how does that affect PCB layout?
Yes, the 1V5KE75CA is a fully bidirectional TVS diode with symmetrical electrical characteristics in both polarities-its VBR, VC, and IPPM apply identically regardless of voltage polarity. As a result, there is no anode/cathode orientation requirement on the PCB; either lead may connect to either side of the protected line. This simplifies layout, eliminates assembly errors, and supports differential or floating signal protection without polarity constraints.
Does the 1V5KE75CA meet automotive surge immunity standards such as ISO 7637-2?
The 1V5KE75CA is capable of meeting ISO 7637-2 Pulse 1 (inductive load dump reversal) and Pulse 3a/b (capacitive coupled transients) due to its 104 V clamping and 1500 W rating. While not tested to Pulse 5a (load dump) alone, it is routinely deployed in automotive BCMs as secondary protection downstream of TVS arrays or hybrid suppressors. Its +175°C junction rating and DO-201 mechanical robustness align with under-hood thermal and vibration requirements.
What is the leakage current specification for the 1V5KE75CA at its rated VRWM?
At its reverse stand-off voltage of 64.1 V, the 1V5KE75CA exhibits a maximum reverse leakage current (IR) of 5 µA at 25°C. This ultra-low leakage minimizes power loss in always-on systems and avoids unintended biasing of high-impedance sensor inputs or reference nodes. Leakage remains below 10 µA even at +85°C, ensuring stable performance across industrial temperature ranges.
Can the 1V5KE75CA be used in parallel to increase surge current handling?
No-parallel connection of 1V5KE75CA devices is not recommended due to VBR tolerance (±5%) causing current imbalance; the unit with lower VBR will conduct most of the surge, risking thermal runaway. For higher current capability, select a single higher-rated TVS (e.g., 3KP75CA) or implement staged protection with upstream MOVs and downstream 1V5KE75CA for fine clamping.
1V5KE75CA 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):
- 64.1V
- Voltage - Breakdown (Min):
- 71.3V
- Voltage - Clamping (Max) @ Ipp:
- 104V
- Current - Peak Pulse (10/1000µs):
- 14.6A
- 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
1V5KE75CA FAQ
1.How can I place an order for 1V5KE75CA through Aetrix?
Please submit a Request for Quotation (RFQ) for 1V5KE75CA 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 1V5KE75CA reliable?
The price and inventory of 1V5KE75CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1V5KE75CA is usually 5 days.
3.What payment methods are accepted for 1V5KE75CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1V5KE75CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1V5KE75CA?
1V5KE75CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1V5KE75CA 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 1V5KE75CA?
For technical support, including 1V5KE75CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1V5KE75CA requirements.
6.How does Aetrix verify that 1V5KE75CA is sourced from the original manufacturer or authorized distributors?
All 1V5KE75CA 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 1V5KE75CA meets industry standards.
7.What is the process for return or replacement of 1V5KE75CA?
All 1V5KE75CA units undergo pre-shipment inspection (PSI). If there is an issue with 1V5KE75CA, 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 1V5KE75CA part is unused and in its original packaging.
Return procedure for 1V5KE75CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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