My Inquiry
My Account
STMicroelectronics 1.5KE7V5ARL
- Part No.:
- 1.5KE7V5ARL
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE7V5ARL.pdf
- Description:
- TVS DIODE 6.4VWM 14.5VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:286
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5KE7V5ARL from STMicroelectronics is a unidirectional 1500 W transient voltage suppression diode in DO-201 package, designed for IEC 61000-4-2 ESD protection (30 kV air/contact) and IEC 61000-4-4 surge immunity (4 kV level 4). It features 7.5 V breakdown voltage (VBR = 6.8–7.14 V at 10 mA), 10.5 V clamping voltage (VCL) at 143 A peak pulse current, and operates up to 175 °C junction temperature. Used in AC/DC power input stages of industrial SMPS and telecom line interfaces.
For engineers reviewing the 1.5KE7V5ARL datasheet, 1.5KE7V5ARL pinout, 1.5KE7V5ARL application, or 1.5KE7V5ARL equivalent, key selection criteria include unidirectional polarity, DO-201 mechanical compatibility, 10/1000 µs surge rating, low dynamic resistance (0.023 Ω), and compliance with UL 497B and IEC 61000-4-2/4-4.
Technical Context
This TVS diode employs planar junction technology to achieve low leakage (<1000 µA at 5.8 V), high thermal stability (Tj max = 175 °C), and robust surge handling across both 10/1000 µs and 8/20 µs waveforms. Its unidirectional configuration enables asymmetric clamping for DC-biased lines.
The device's VBR temperature coefficient (αT = 5.7 × 10−4/°C) and VCL derating allow precise overvoltage margining in wide-temperature applications. Dynamic resistance (RD = 0.023 Ω) ensures minimal voltage overshoot during fast transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 6.8 V / 7.14 V at 10 mA - defines minimum clamping threshold under DC bias |
| VCL @ IPP | 10.5 V at 143 A (10/1000 µs) - maximum voltage seen by protected circuit during surge |
| PPP | 1500 W (10/1000 µs) - peak power dissipation capability for standard lightning surge test |
| RD | 0.023 Ω - dynamic resistance determining voltage overshoot during fast current rise |
| Tj max | 175 °C - enables reliable operation in high-ambient industrial power supplies |
| IRM max | 1000 µA at 5.8 V - low reverse leakage preserves efficiency in high-impedance sensing paths |
| ESD Rating | 30 kV contact & air discharge per IEC 61000-4-2 - exceeds level 4 for front-panel interface protection |
Pinout & Package
1.5KE7V5ARL uses the axial-leaded DO-201 package (8.5–9.5 mm length, 4.8–5.3 mm diameter, 0.96–1.06 mm lead diameter), optimized for through-hole mounting and high-power dissipation. Cathode marked with band; anode unmarked.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or negative rail in unidirectional clamp configuration |
| Cathode | High-side connection point | Connected to protected line; clamps positive transients to VCL above cathode potential |
Key Features
| Feature | Design Value |
|---|---|
| Peak pulse power | 1500 W (10/1000 µs) - sustains repeated surges without degradation in telecom power inputs |
| Clamping ratio (VCL/VBR) | 1.47 - tight voltage margin ensures downstream ICs remain within absolute maximum ratings |
| Operating Tj range | −55 °C to +175 °C - supports deployment in engine control units and outdoor power converters |
| UL 497B certification | QVGQ2.E136224 - validates suitability for primary-side telecom and PoE interface protection |
| Lead finish | Matte tin plating - ensures solderability and intermetallic reliability per J-STD-002 Class 3 |
Applications
| Industrial SMPS Input Protection | Telecom Line Interface |
|---|---|
|
Use Scenario: AC/DC adapter input stage exposed to lightning-induced surges on mains lines. IC Role / Device Role / Timing Role: Unidirectional TVS placed between L/N and earth ground to clamp common-mode transients. Use Value: 1500 W 10/1000 µs rating absorbs EN 61000-4-5 level 3 surges without failure; 175 °C Tj max maintains reliability in enclosed enclosures. |
Use Scenario: RJ45 Ethernet port on DSLAM or ONU equipment with PoE support. IC Role / Device Role / Timing Role: Primary-level surge suppressor on tip/ring lines before isolation transformer and PHY IC. Use Value: 30 kV IEC 61000-4-2 rating prevents latch-up in PHY receivers; DO-201 axial leads simplify PCB layout for high-voltage creepage. |
| Automotive Body Control Module | Medical Power Supply Input |
|
Use Scenario: 12 V battery feed line in BCM subjected to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Secondary-level clamp after upstream TVS array, limiting residual voltage to MCU supply rails. Use Value: Low RD (0.023 Ω) minimizes overshoot during fast 5/50 ns spikes; matte tin leads ensure long-term solder joint integrity. |
Use Scenario: Mains-connected medical AC-DC converter requiring reinforced insulation per IEC 60601-1. IC Role / Device Role / Timing Role: Surge protector on primary side, coordinated with Y-capacitors and varistors for multi-stage filtering. Use Value: UL 497B listing confirms compliance for patient-connected equipment; 1000 µA leakage avoids compromising isolation barrier performance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.0A | 600 W rating (10/1000 µs), SMB package, VBR = 7.22–7.98 V, VCL = 11.2 V @ 53.5 A | Lower power handling; suited for secondary-side or low-energy signal lines | Select when board space is constrained and surge energy ≤600 W |
| 1N6267A | 1500 W rating, DO-201 package, VBR = 6.7–7.4 V, VCL = 10.5 V @ 143 A, but Tj max = 150 °C and no UL 497B listing | Lacks telecom-specific safety certification; limited high-temp reliability | Select only for cost-sensitive non-certified industrial controls |
Compared with SMBJ7.0A and 1N6267A, 1.5KE7V5ARL delivers higher surge margin (1500 W), full UL 497B validation for telecom, and extended 175 °C operation-making it optimal for certified, high-reliability primary-side protection where thermal and safety margins are critical.
Availability
1.5KE7V5ARL is available at Aetrix Electronics and suitable for industrial SMPS input protection, telecom line interface hardening, and automotive body control module surge suppression requiring stable component supply and long-lifecycle availability.
Supply support for 1.5KE7V5ARL 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, delivering silicon solutions for smart mobility, power, and sensing applications across automotive, industrial, and consumer markets.
The 1.5KE series belongs to ST's high-power TVS portfolio, engineered specifically for robust front-end surge protection in AC/DC power supplies, telecom infrastructure, and industrial control systems demanding certified reliability and wide temperature operation.
FAQ
What is the polarity configuration of 1.5KE7V5ARL?
1.5KE7V5ARL is a unidirectional TVS diode, meaning it conducts only during positive voltage transients relative to its cathode terminal. It functions as a forward-biased zener-like clamp for overvoltage events on DC-biased lines, with the cathode connected to the protected line and anode to ground. This configuration provides asymmetric protection ideal for single-polarity power rails.
How does 1.5KE7V5ARL compare to bidirectional variants like 1.5KE7V5CA?
Unlike the bidirectional 1.5KE7V5CA, which clamps both positive and negative transients symmetrically, 1.5KE7V5ARL offers lower leakage and tighter VBR tolerance for DC-coupled applications. Its unidirectional structure eliminates reverse conduction path, making it preferred for power supply inputs where negative-going surges are absent or handled separately.
Can 1.5KE7V5ARL be used in parallel for higher surge current handling?
No-parallel connection of 1.5KE7V5ARL devices is not recommended due to mismatch in VBR and dynamic resistance, causing uneven current sharing and premature failure of one unit. For higher current capacity, select a single higher-rated part such as 1.5KE12A or use staged protection with upstream MOVs and downstream low-capacitance TVS.
What reflow profile should be used for surface-mount assembly of 1.5KE7V5ARL?
1.5KE7V5ARL is a through-hole DO-201 device and is not intended for reflow soldering. It must be mounted using wave soldering or hand-soldering with preheating. The ST-recommended profile referenced in DS0636 applies only to SMD variants (e.g., SMAJ, SMBJ); DO-201 parts require lead-free wave soldering at 260 °C max for 10 s at 5 mm from case per J-STD-002.
1.5KE7V5ARL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- 1.5KE, TRANSIL™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- 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:
- 8500pF @ 1MHz
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201
1.5KE7V5ARL FAQ
1.How can I place an order for 1.5KE7V5ARL through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE7V5ARL 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 1.5KE7V5ARL reliable?
The price and inventory of 1.5KE7V5ARL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE7V5ARL is usually 5 days.
3.What payment methods are accepted for 1.5KE7V5ARL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE7V5ARL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE7V5ARL?
1.5KE7V5ARL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE7V5ARL 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 1.5KE7V5ARL?
For technical support, including 1.5KE7V5ARL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE7V5ARL requirements.
6.How does Aetrix verify that 1.5KE7V5ARL is sourced from the original manufacturer or authorized distributors?
All 1.5KE7V5ARL 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 1.5KE7V5ARL meets industry standards.
7.What is the process for return or replacement of 1.5KE7V5ARL?
All 1.5KE7V5ARL units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE7V5ARL, 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 1.5KE7V5ARL part is unused and in its original packaging.
Return procedure for 1.5KE7V5ARL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE7V5ARL Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
