My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 5KP7.5A-E3/51
- Part No.:
- 5KP7.5A-E3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP7.5A-E3/51.pdf
- Description:
- TVS DIODE 7.5VWM 12.9VC P600
- Quantity:
- Payment:
- Shipping:
Inventory:8,821
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
5KP7.5A-E3/51 from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 7.5 V stand-off voltage (VWM), 8.33–9.21 V breakdown voltage (VBR) at 5.0 mA, 5000 W peak pulse power (10/1000 μs), 388 A peak pulse current (IPPM), and clamps to ≤12.9 V at rated surge. It is used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the 5KP7.5A-E3/51 datasheet, 5KP7.5A-E3/51 pinout, 5KP7.5A-E3/51 application, or 5KP7.5A-E3/51 equivalent, key selection criteria include its P600 package compatibility, unidirectional polarity, AEC-Q101 qualification (E3 suffix denotes commercial grade; HE3 required for automotive), 175 °C max junction temperature, and low clamping ratio (VC/VBR ≈ 1.44) critical for robust overvoltage margin design.
Technical Context
This TVS diode employs a glass-passivated P600 chip junction optimized for high-energy transients induced by inductive load switching or lightning surges. Its low incremental surge resistance and fast response time (<1 ns) enable effective clamping before downstream components experience overstress.
The device operates as a shunt protector: under normal conditions it presents <250 μA leakage at 7.5 V; during a transient exceeding VBR, it avalanches into low-impedance conduction, diverting up to 388 A away from protected circuitry while limiting voltage to ≤12.9 V - a critical parameter for safeguarding 5 V–12 V logic and power stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 7.5 V - Maximum continuous reverse voltage before significant leakage; sets operating margin below breakdown. |
| VBR (Breakdown Voltage) | 8.33–9.21 V at 5.0 mA - Confirmed avalanche onset range; defines minimum overvoltage threshold for clamping activation. |
| VC (Clamping Voltage) | ≤12.9 V at 388 A - Maximum voltage seen by protected circuit during full-rated surge; determines safe headroom for 12 V systems. |
| PPPM (Peak Pulse Power) | 5000 W (10/1000 μs) - Energy-handling capacity for standardized surge waveforms; enables single-event protection of high-current rails. |
| ID (Reverse Leakage) | ≤250 μA at 7.5 V - Low standby power loss and minimal interference with high-impedance sensing circuits. |
| TJ max | 175 °C - Enables reliable operation in under-hood automotive and industrial environments without derating at 125 °C ambient. |
| Polarity | Unidirectional - Cathode marked by band; suitable for DC rail protection where reverse conduction is not required. |
Pinout & Package
Package: P600 molded epoxy case with matte tin-plated leads; UL 94 V-0 rated; RoHS-compliant (E3 suffix); 0.375" (9.5 mm) body length; axial lead configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or return path; completes shunt path during avalanche conduction. |
| Cathode | High-side connection point | Marked by color band; connected to protected line (e.g., +12 V rail); conducts surge current to ground when V > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 5000 W peak pulse power (10/1000 μs) | Supports protection against severe ISO 7637-2 Pulse 5a/b and IEC 61000-4-5 Level 4 surges without external crowbar circuitry. |
| AEC-Q101 qualified variant available (5KP7.5AHE3/51) | Enables drop-in qualification for automotive ECUs where reliability under thermal cycling and humidity is mandated. |
| Clamping ratio VC/VBR ≈ 1.44 | Provides tight voltage control during surge - lower than typical 1.6+ ratios - preserving margin for 12 V logic and gate drivers. |
| P600 package with 275 °C solder dip rating | Ensures robustness during wave soldering and rework; compatible with standard through-hole assembly processes. |
Applications
| Automotive Power Rail Protection | Industrial DC Power Supply Output |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECU inputs against load dump (ISO 7637-2 Pulse 5) and alternator transients. IC Role / Device Role / Timing Role: Shunt TVS placed between VBAT and GND upstream of LDOs and microcontrollers. Use Value: Clamps to ≤12.9 V during 388 A surge, preventing latch-up or oxide rupture in 12 V-tolerant ICs while surviving repeated events. |
Use Scenario: Safeguarding output of 24 V industrial SMPS against inductive kickback from solenoid/relay switching. IC Role / Device Role / Timing Role: Primary overvoltage clamp on secondary-side DC bus, coordinated with OVP feedback loop. Use Value: Absorbs 5000 W pulses without degradation, eliminating need for bulkier crowbar SCR/fuse combinations and reducing BOM count. |
| Sensor Signal Line Protection | Telecom Interface Surge Suppression |
Use Scenario: Shielding analog outputs of pressure/temperature sensors in engine bay against coupled transients. IC Role / Device Role / Timing Role: Low-leakage (≤250 μA) shunt protector on 5 V sensor supply line, placed near connector. Use Value: Maintains signal integrity with minimal offset error while suppressing >1 kV EFT bursts per IEC 61000-4-4. |
Use Scenario: Front-end protection for RS-485 transceivers in outdoor base station equipment exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS on VCC and data lines, leveraging fast <1 ns response to limit voltage before transceiver damage. Use Value: Withstands 10/1000 μs surges up to 388 A, meeting Telcordia GR-1089-CORE Level 3 requirements for central office gear. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ7.5A | Lower PPPM (400 W), SMC package (smaller footprint), 100 A IPPM, higher VC (12.0 V @ 32.4 A) | Better suited for space-constrained PCBs with moderate surge exposure (IEC 61000-4-5 Level 2), not load dump. | Select when board area is critical and surge energy is ≤400 W; verify thermal relief for repeated events. |
| ON Semiconductor 1.5KE7.5A | Same P600 package, 1500 W PPPM (10/1000 μs), 125 A IPPM, VC = 12.0 V @ 125 A, lower cost | Appropriate for non-automotive industrial controls with lower surge severity; lacks AEC-Q101 option. | Choose for cost-sensitive designs where 5000 W capability is unnecessary and AEC-Q101 is not required. |
Compared with 5KP7.5A-E3/51, SMAJ7.5A trades surge capacity for compactness, while 1.5KE7.5A reduces power handling by 70 % but lowers unit cost - making the 5KP7.5A-E3/51 optimal for high-reliability, high-energy protection where P600 mechanical robustness and 5 kW rating are mandatory.
Availability
5KP7.5A-E3/51 is available at Aetrix Electronics and suitable for automotive ECU protection, industrial SMPS output clamping, and telecom interface surge suppression requiring stable component supply across multi-year production cycles.
Supply support for 5KP7.5A-E3/51 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, TVS devices, and optoelectronics with emphasis on reliability and automotive-grade qualification.
The 5KP series was engineered specifically for high-energy transient suppression in automotive and industrial power systems, targeting replacement of crowbar circuits while enabling fuse-based fault clearing and system reset capability.
FAQ
What is the maximum clamping voltage of the 5KP7.5A-E3/51 under full-rated surge current?
The 5KP7.5A-E3/51 clamps to a maximum of 12.9 V when subjected to its rated peak pulse current of 388 A (10/1000 μs waveform). This value is measured and guaranteed per JEDEC test conditions and ensures protected circuits remain within safe operating limits during worst-case transients. The low clamping voltage directly supports compatibility with 12 V logic families and gate drivers.
Is the 5KP7.5A-E3/51 AEC-Q101 qualified?
No, the 5KP7.5A-E3/51 is the commercial-grade version with E3 suffix (RoHS-compliant, JESD201 Class 1A whisker tested). For AEC-Q101 qualification, the correct part is 5KP7.5AHE3/51 - identical electrical specs but manufactured and tested to automotive reliability standards including temperature cycling, humidity bias, and HTRB.
What does the "/51" in 5KP7.5A-E3/51 indicate?
The "/51" denotes the preferred packaging code per Vishay's ordering system: it specifies 500 pieces per 13-inch diameter paper tape and reel. This differs from "/54" (800 pieces/reel) and affects logistics planning and minimum order quantities. The electrical and mechanical specifications of 5KP7.5A-E3/51 are identical to other P600-packaged variants of the same base number.
Can the 5KP7.5A-E3/51 be used in bidirectional protection configurations?
No, the 5KP7.5A-E3/51 is unidirectional only, with cathode marked by a band. It conducts only in reverse avalanche mode and blocks forward current above ~3.5 V. For bidirectional protection (e.g., AC lines or differential data buses), a pair of unidirectional devices or a dedicated bidirectional TVS such as 5KP7.5CA must be used instead.
How does the 5KP7.5A-E3/51 compare to the 1.5KE7.5A in terms of surge handling capability?
The 5KP7.5A-E3/51 delivers 5000 W peak pulse power (10/1000 μs), over three times the 1500 W rating of the 1.5KE7.5A. Its 388 A IPPM also exceeds the 125 A of the 1.5KE7.5A. This makes the 5KP7.5A-E3/51 suitable for severe transients like automotive load dump, whereas the 1.5KE7.5A targets lighter-duty industrial or consumer applications.
5KP7.5A-E3/51 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- P600, Axial
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 7.5V
- Voltage - Breakdown (Min):
- 8.33V
- Voltage - Clamping (Max) @ Ipp:
- 12.9V
- Current - Peak Pulse (10/1000µs):
- 388A
- Power - Peak Pulse:
- 5000W (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:
- P600
5KP7.5A-E3/51 FAQ
1.How can I place an order for 5KP7.5A-E3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP7.5A-E3/51 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 5KP7.5A-E3/51 reliable?
The price and inventory of 5KP7.5A-E3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5KP7.5A-E3/51 is usually 5 days.
3.What payment methods are accepted for 5KP7.5A-E3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP7.5A-E3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP7.5A-E3/51?
5KP7.5A-E3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP7.5A-E3/51 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 5KP7.5A-E3/51?
For technical support, including 5KP7.5A-E3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP7.5A-E3/51 requirements.
6.How does Aetrix verify that 5KP7.5A-E3/51 is sourced from the original manufacturer or authorized distributors?
All 5KP7.5A-E3/51 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 5KP7.5A-E3/51 meets industry standards.
7.What is the process for return or replacement of 5KP7.5A-E3/51?
All 5KP7.5A-E3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP7.5A-E3/51, 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 5KP7.5A-E3/51 part is unused and in its original packaging.
Return procedure for 5KP7.5A-E3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
5KP7.5A-E3/51 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
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
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 …
