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STMicroelectronics 1.5KE7V5CA
- Part No.:
- 1.5KE7V5CA
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE7V5CA.pdf
- Description:
- TVS DIODE 6.4VWM 14.5VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:8,331
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Product details
Overview
1.5KE7V5CA from STMicroelectronics is a bidirectional transient voltage suppression (TVS) diode in DO-201 package, designed for high-energy ESD and surge protection with 1500 W peak pulse power (10/1000 µs), 7.5 V standoff voltage (VRM), and 13.4 V clamping voltage (VCL) at 746 A peak current. It operates from –55 °C to +175 °C and meets IEC 61000-4-2 level 4 (30 kV air/contact discharge) and IEC 61000-4-4 level 4 (4 kV). It is used in AC/DC power inputs and telecom line interfaces.
For engineers reviewing the 1.5KE7V5CA datasheet, 1.5KE7V5CA pinout, 1.5KE7V5CA application, or 1.5KE7V5CA equivalent, key selection criteria include bidirectional clamping behavior, low VBR tolerance (±5%), high Tj max (175 °C), robust 8/20 µs surge capability (up to 10 kW), and DO-201 mechanical compatibility with legacy PCB layouts.
Technical Context
The 1.5KE7V5CA employs planar junction technology to achieve low leakage (<1000 µA at VRM), stable VBR temperature coefficient (αT = 5.7 × 10⁻⁴ /°C), and consistent clamping performance across –55 °C to +175 °C. Its bidirectional symmetry enables symmetric surge suppression on differential lines without polarity constraints.
It delivers 13.4 V clamping at 746 A (10/1000 µs) with dynamic resistance RD = 0.008 Ω, enabling rapid voltage limiting during fast transients. The device sustains 200 A non-repetitive forward surge (tp = 10 ms) and complies with UL 497B, IEC 61000-4-2/4-4, and JESD22-B102 E3 reliability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500 W (10/1000 µs); sustains industrial-grade lightning surges per IEC 61000-4-5 |
| Standoff Voltage (VRM) | 7.5 V; maximum continuous reverse operating voltage before breakdown |
| Breakdown Voltage (VBR) | 6.45–7.14 V at 10 mA; tight ±5% tolerance ensures predictable turn-on threshold |
| Clamping Voltage (VCL) | 13.4 V at 746 A (10/1000 µs); limits downstream voltage stress during surge events |
| Junction Temperature Range | –55 °C to +175 °C; supports operation in automotive under-hood and industrial SMPS environments |
| ESD Robustness | 30 kV contact & air discharge (IEC 61000-4-2 level 4); exceeds standard immunity requirements |
| Package | DO-201; axial-leaded through-hole package with 8.5–9.5 mm body length and 4.8–5.3 mm diameter |
Pinout & Package
1.5KE7V5CA uses the DO-201 axial package: cylindrical glass body with two tinned copper leads, matte tin plating, and no polarity marking for bidirectional operation. Cathode/anode distinction is irrelevant; both terminals are functionally symmetric.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Surge current entry (reverse bias) | Accepts transient energy from either direction; forms one side of symmetrical clamping path |
| Cathode (Lead 2) | Surge current return (reverse bias) | Completes bidirectional conduction path; identical electrical role to Lead 1 |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC lines or differential buses without external polarity management |
| 175 °C junction rating | Supports reliable operation in high-temperature power supply and motor drive applications |
| Low dynamic resistance (0.008 Ω) | Minimizes voltage overshoot during high-current transients, improving system-level surge margin |
| UL 497B certified | Validated for use in telecom and industrial signal interface protection per safety standard |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking, simplifying SMT assembly |
Applications
| AC Power Input Protection | RS-485 Interface Protection |
|---|---|
Use Scenario: Protecting AC/DC adapter inputs against lightning-induced surges and line switching transients. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed across L-N or L/N-to-PE to divert >1 kA surges within nanoseconds. Use Value: Limits input stage voltage to ≤13.4 V during 10/1000 µs surges, preventing rectifier and controller IC damage. |
Use Scenario: Safeguarding RS-485 transceivers in industrial automation networks exposed to cable-borne EFT and ESD. IC Role / Device Role / Timing Role: Differential-line TVS connected between A/B bus lines and ground to suppress common-mode transients. Use Value: Clamps 4 kV IEC 61000-4-4 bursts to safe levels while maintaining <1 nF junction capacitance for signal integrity up to 20 Mbps. |
| Telecom Line Interface | Automotive Body Control Module |
Use Scenario: Protecting POTS line interface circuits in VoIP gateways and DSL modems from induced surges. IC Role / Device Role / Timing Role: Primary surge arrestor on tip/ring lines, coordinated with secondary GDT or polymer PTC. Use Value: Withstands repeated 30 kV ESD strikes and passes UL 497B surge testing for telecom safety compliance. |
Use Scenario: Shielding LIN bus nodes and sensor inputs in under-dash ECUs from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Secondary protection device after primary TVS or varistor, handling residual fast transients. Use Value: Operates reliably at 175 °C ambient, surviving engine bay thermal cycling without parameter drift or failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.5CA | Lower peak power (600 W), smaller SMB package (surface-mount), higher VCL (12.9 V @ 49.2 A) | Preferred for space-constrained PCBs; unsuitable for >1 kA surge duty | Select when board area is limited and surge energy is ≤600 W (10/1000 µs) |
| 1N6267A | Same DO-201 package, but unidirectional; VBR = 6.8–7.6 V, VCL = 11.2 V @ 133 A | Only protects single-polarity lines; requires dual placement for AC/differential use | Choose only for DC rail protection where polarity is fixed and lower clamping voltage is critical |
Compared with SMBJ7.5CA and 1N6267A, the 1.5KE7V5CA provides 2.5× higher surge power handling and true bidirectional symmetry in a through-hole package-making it optimal for high-reliability AC input and telecom line protection where mechanical robustness and energy capacity are prioritized over footprint size.
Availability
1.5KE7V5CA is available at Aetrix Electronics and suitable for AC/DC power supplies, industrial RS-485 networks, telecom line interfaces, and automotive body control modules requiring stable component supply and long-term lifecycle support.
Supply support for 1.5KE7V5CA 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, power, microcontroller, and sensor solutions for industrial, automotive, and consumer markets.
The 1.5KE series belongs to ST's high-power TVS portfolio, engineered specifically for robust front-end surge protection in harsh electromagnetic environments where reliability under repeated transient stress is mandatory.
FAQ
What is the difference between 1.5KE7V5CA and 1.5KE7V5A?
The "CA" suffix denotes bidirectional construction, meaning the device clamps symmetrically for both positive and negative transients-ideal for AC lines or differential buses. The "A" version is unidirectional and only clamps in reverse bias; forward conduction occurs at ~0.7 V, making it unsuitable for AC applications without additional circuitry.
Can 1.5KE7V5CA be used in surface-mount designs?
No-it is exclusively a DO-201 axial through-hole package with 25.4 mm lead spacing and 9 mm body length. For SMT equivalents, consider SMBJ7.5CA (SMB) or SMCJ7.5CA (SMC), which offer similar VBR/VCL but lower peak power ratings and different thermal profiles.
Does 1.5KE7V5CA meet automotive AEC-Q200 requirements?
No-while it operates up to 175 °C and passes JESD22-B102 E3 solderability, it is not qualified to AEC-Q200. For automotive-compliant TVS diodes, ST offers the SMAJ7.5CA-Q or SMCJ7.5CA-Q series, which undergo full stress testing per AEC-Q200 Rev D.
How does temperature affect clamping voltage in 1.5KE7V5CA?
VCL increases linearly with junction temperature at αT = 5.7 × 10⁻⁴ /°C. At 150 °C, VCL rises by ~7% versus 25 °C-e.g., from 13.4 V to ~14.3 V at 746 A. Designers must verify worst-case clamping margin at max Tj in thermal simulations.
1.5KE7V5CA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- 1.5KE, TRANSIL™
- Packaging:
- Cut Tape (CT)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 6.4V
- Voltage - Breakdown (Min):
- 7.13V
- Voltage - Clamping (Max) @ Ipp:
- 14.5V
- Current - Peak Pulse (10/1000µs):
- 690A (8/20µs)
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 4250pF @ 1MHz
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201
1.5KE7V5CA FAQ
1.How can I place an order for 1.5KE7V5CA through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE7V5CA 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 1.5KE7V5CA reliable?
The price and inventory of 1.5KE7V5CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE7V5CA is usually 5 days.
3.What payment methods are accepted for 1.5KE7V5CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE7V5CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE7V5CA?
1.5KE7V5CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE7V5CA 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 1.5KE7V5CA?
For technical support, including 1.5KE7V5CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE7V5CA requirements.
6.How does Aetrix verify that 1.5KE7V5CA is sourced from the original manufacturer or authorized distributors?
All 1.5KE7V5CA 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 1.5KE7V5CA meets industry standards.
7.What is the process for return or replacement of 1.5KE7V5CA?
All 1.5KE7V5CA units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE7V5CA, 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 1.5KE7V5CA part is unused and in its original packaging.
Return procedure for 1.5KE7V5CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE7V5CA Tags
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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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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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