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Vishay General Semiconductor - Diodes Division 5KP12AHE3_A/C
- Part No.:
- 5KP12AHE3_A/C
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP12AHE3_A/C.pdf
- Description:
- TVS DIODE
- Quantity:
- Payment:
- Shipping:
Inventory:3,278
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Product details
Overview
5KP12AHE3_A/C from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor (TVS) diode in P600 package, designed for primary overvoltage protection of DC power rails and signal lines. It features 12.0 V stand-off voltage (VWM), 13.3–14.7 V breakdown voltage (VBR) at 5 mA, 19.9 V clamping voltage (VC) at 251 A peak pulse current, and 5000 W peak pulse power rating with 10/1000 μs waveform - used to safeguard MOSFETs, ICs, and sensor interfaces against lightning-induced surges and inductive switching transients in automotive and industrial power supplies.
For engineers reviewing the 5KP12AHE3_A/C datasheet, 5KP12AHE3_A/C pinout, 5KP12AHE3_A/C application, or 5KP12AHE3_A/C equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 175 °C max junction temperature, low incremental surge resistance, and compatibility with P600 board-mount footprint for high-energy transient suppression in 12 V nominal systems.
Technical Context
This TVS diode operates as a voltage-clamping device triggered by reverse-biased avalanche breakdown. Its P600 glass-passivated chip junction enables robust 5000 W surge handling with fast response time (<1 ns) and low dynamic impedance, critical for limiting transient overvoltages before downstream components fail.
The device is rated for unidirectional operation only, with cathode denoted by color band. It supports repetitive surge duty cycle ≤0.01 % and meets JESD 22-B106 solderability (275 °C, 10 s), JESD 201 class 2 whisker resistance (HE3 suffix), and UL 94 V-0 flammability for molded epoxy body.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 12.0 V - maximum continuous reverse operating voltage before clamping begins; sets system DC rail compatibility |
| VBR min/max | 13.3 V / 14.7 V at 5 mA - guaranteed avalanche initiation range; ensures predictable turn-on under surge |
| VC @ IPPM | 19.9 V at 251 A - clamped voltage during full-rated 10/1000 μs surge; defines worst-case stress on protected circuit |
| PPPM | 5000 W - peak pulse power capability; determines survivability against lightning or load-switching transients |
| TJ max | +175 °C - maximum junction temperature; enables use in under-hood automotive and high-ambient industrial environments |
| Polarity | Unidirectional - protects against negative-going transients only; requires correct orientation in series with positive rail |
| IFSM | 500 A - non-repetitive forward surge rating; supports crowbar-style fault clearing without bond-wire failure |
Pinout & Package
Package: P600 molded epoxy case with matte tin-plated leads; 0.360–0.375 inch (9.1–9.5 mm) body length; RoHS-compliant, AEC-Q101 qualified (HE3 suffix); cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path | Connected to lower-potential side (e.g., ground or return) in unidirectional configuration |
| Cathode | Avalanche clamping node | Connected to protected line (e.g., 12 V rail); color band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per JESD47 |
| 5000 W peak pulse power | Withstands IEC 61000-4-5 Level 4 (4 kV) surges without degradation when properly mounted |
| Low clamping ratio (VC/VWM = 1.66) | Minimizes overvoltage overshoot relative to working voltage - critical for 12 V logic and MCU supply protection |
| P600 package thermal mass | Enables >8 W steady-state dissipation on infinite heatsink at TL = 75 °C - supports fuse-coordinated crowbar operation |
| Fast response time | <1 ns turn-on delay ensures clamping occurs before transient energy couples into sensitive nodes |
Applications
| Automotive Power Rail Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load-dump and jump-start transients per ISO 7637-2. IC Role / Device Role / Timing Role: Primary clamping element placed upstream of DC/DC converter input. Use Value: Clamps to 19.9 V during 251 A surge, preventing damage to 36 V-rated input stages while enabling fuse coordination. | Use Scenario: Shielding 24 V digital input modules from field-wiring induced surges in factory automation. IC Role / Device Role / Timing Role: Standoff protector across input terminals, shunting transients before optocoupler or Schmitt trigger. Use Value: 12.0 V VWM matches common 24 V system derating margin; 5000 W rating handles repetitive 10/1000 μs events from relay coil back-EMF. |
| Telecom DC Power Feeds | Consumer Appliance Motor Drive Protection |
Use Scenario: Safeguarding PoE-powered equipment front-end against lightning-induced surges on 48 V DC feeds. IC Role / Device Role / Timing Role: Secondary-level TVS after primary gas discharge tube (GDT), providing low-clamp refinement. Use Value: 19.9 V VC limits residual overvoltage below 24 V logic thresholds, preserving PHY and controller integrity. | Use Scenario: Suppressing commutation spikes from brushed DC motors in smart home appliances. IC Role / Device Role / Timing Role: Across motor terminals to clamp inductive kickback during PWM switching. Use Value: 500 A IFSM withstands repeated motor stall currents; P600 thermal mass prevents thermal runaway during burst-mode operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ12AHE3/52 | Lower PPPM (600 W), smaller SMB package, same VWM/VBR range | Targeted for space-constrained PCBs with lower-energy transients (e.g., USB, sensor lines) | Select when surge energy ≤600 W and board area is limited; not suitable for ISO 7637-2 load-dump compliance. |
| 1.5KE12A | Same VWM/VBR but lower PPPM (1500 W), DO-201 package, no AEC-Q101 qualification | General-purpose industrial protection where automotive qualification is not required | Choose for cost-sensitive non-automotive designs; lacks thermal robustness and automotive reliability validation of 5KP12AHE3_A/C. |
Compared with SMBJ12AHE3/52 and 1.5KE12A, the 5KP12AHE3_A/C delivers 3.3× higher surge power handling and automotive-grade qualification - making it the only option among the three validated for under-hood deployment and high-energy crowbar operation in 12 V systems.
Availability
5KP12AHE3_A/C is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC input conditioning, and telecom DC feed protection requiring stable component supply across extended production lifecycles.
Supply support for 5KP12AHE3_A/C 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, MOSFETs, and protection devices with emphasis on reliability, power handling, and automotive qualification.
The 5KP series was engineered specifically for high-energy transient suppression in DC power distribution networks - targeting applications where fuse coordination, thermal survivability, and AEC-Q101 compliance are mandatory.
FAQ
What is the clamping voltage of the 5KP12AHE3_A/C under full-rated surge conditions?
The 5KP12AHE3_A/C clamps to a maximum of 19.9 V when subjected to its rated 251 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value is measured per JEDEC test conditions and represents the worst-case voltage seen by downstream circuitry during surge events - critical for verifying compatibility with 24 V-tolerant inputs or 16 V-rated regulators.
Is the 5KP12AHE3_A/C suitable for bidirectional transient protection?
No, the 5KP12AHE3_A/C is unidirectional only, as confirmed in the Vishay datasheet. It protects against reverse-biased transients on a positive rail (cathode to line) and cannot suppress positive-going surges on grounded lines. For bidirectional protection, a separate symmetric TVS like SMAJ12A or a dedicated bidirectional part must be used instead of the 5KP12AHE3_A/C.
Does the 5KP12AHE3_A/C meet automotive qualification standards?
Yes, the 5KP12AHE3_A/C carries the HE3 suffix, which denotes AEC-Q101 qualification per the Vishay ordering information and mechanical data section. This includes stress testing for temperature cycling, high-temperature reverse bias, and mechanical shock - validating its suitability for automotive powertrain, body control, and infotainment modules.
What is the maximum operating temperature for the 5KP12AHE3_A/C junction?
The 5KP12AHE3_A/C has a maximum junction temperature (TJ max) of +175 °C, as specified in the Primary Characteristics table. This allows reliable operation in high-ambient environments such as engine compartments or enclosed industrial enclosures, provided thermal design accounts for power dissipation during sustained surge events.
How does the 5KP12AHE3_A/C compare to standard 1.5KE series TVS diodes?
The 5KP12AHE3_A/C provides 3.3× higher peak pulse power (5000 W vs. 1500 W), AEC-Q101 qualification (absent in 1.5KE12A), and P600 packaging optimized for thermal dissipation - making it suitable for demanding automotive and industrial applications where the 1.5KE12A would fail under identical surge conditions or lack required reliability certification.
5KP12AHE3_A/C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- P600, Axial
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 12V
- Voltage - Breakdown (Min):
- 13.3V
- Voltage - Clamping (Max) @ Ipp:
- 19.9V
- Current - Peak Pulse (10/1000µs):
- 251A
- Power - Peak Pulse:
- 5000W (5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- P600
5KP12AHE3_A/C FAQ
1.How can I place an order for 5KP12AHE3_A/C through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP12AHE3_A/C 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 5KP12AHE3_A/C reliable?
The price and inventory of 5KP12AHE3_A/C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5KP12AHE3_A/C is usually 5 days.
3.What payment methods are accepted for 5KP12AHE3_A/C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP12AHE3_A/C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP12AHE3_A/C?
5KP12AHE3_A/C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP12AHE3_A/C 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 5KP12AHE3_A/C?
For technical support, including 5KP12AHE3_A/C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP12AHE3_A/C requirements.
6.How does Aetrix verify that 5KP12AHE3_A/C is sourced from the original manufacturer or authorized distributors?
All 5KP12AHE3_A/C 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 5KP12AHE3_A/C meets industry standards.
7.What is the process for return or replacement of 5KP12AHE3_A/C?
All 5KP12AHE3_A/C units undergo pre-shipment inspection (PSI). If there is an issue with 5KP12AHE3_A/C, 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 5KP12AHE3_A/C part is unused and in its original packaging.
Return procedure for 5KP12AHE3_A/C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
5KP12AHE3_A/C Tags
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