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Vishay General Semiconductor - Diodes Division 5KP120A-E3/51
- Part No.:
- 5KP120A-E3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP120A-E3/51.pdf
- Description:
- TVS DIODE 120VWM 193VC P600
- Quantity:
- Payment:
- Shipping:
Inventory:6,156
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Product details
Overview
5KP120A-E3/51 from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor (TVS) diode designed for high-energy surge protection in DC power rails and signal lines. It features a 120 V stand-off voltage (VWM), 133–147 V breakdown voltage (VBR) at 5 mA, 5000 W peak pulse power (10/1000 μs), 193 V maximum clamping voltage at 25.9 A, and operates across –55 °C to +175 °C junction temperature range.
For engineers reviewing the 5KP120A-E3/51 datasheet, 5KP120A-E3/51 pinout, 5KP120A-E3/51 application, or 5KP120A-E3/51 equivalent, this device is selected for robust overvoltage protection in automotive power supplies, industrial motor drives, and telecom DC-DC converter outputs where fast response (<1 ns), low clamping ratio, and AEC-Q101 qualification are critical.
Technical Context
The 5KP120A-E3/51 uses a glass-passivated P600 package with a single-junction silicon avalanche structure optimized for repetitive 10/1000 μs surge waveforms at 0.01% duty cycle. Its unidirectional polarity enables integration into positive-rail protection schemes without reverse-bias leakage concerns beyond 2.0 μA at 120 V.
It delivers stable clamping performance up to 175 °C junction temperature, with thermal derating defined per Fig. 2 and Fig. 5, and supports soldering per JESD 22-B106 (275 °C, 10 s). The device meets JEDEC registered electrical standards and exhibits a +0.112 %/°C VBR temperature coefficient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 120 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin for 12 V–48 V systems with headroom. |
| VBR (min/max) | 133 V / 147 V at 5 mA - Confirmed breakdown threshold ensures predictable turn-on during transients above nominal supply. |
| VC @ IPPM | 193 V at 25.9 A - Clamping voltage under full 5000 W surge; limits downstream IC stress to <200 V during lightning or inductive switch-off events. |
| PPPM | 5000 W (10/1000 μs) - Sustains one-time or low-duty-cycle surges typical of ISO 7637-2 Pulse 5a/b and IEC 61000-4-5 Level 4. |
| ID @ VWM | ≤2.0 μA - Ultra-low reverse leakage preserves efficiency in always-on 120 V auxiliary supplies and battery-backed circuits. |
| TJ max. | +175 °C - Enables placement near hot components (e.g., MOSFETs, transformers) without thermal shutdown or parameter drift. |
| Package | P600 - Axial-leaded, molded epoxy body (9.5 mm L × 8.6 mm D) rated UL 94 V-0; compatible with through-hole reflow and wave soldering. |
Pinout & Package
P600 package: axial-leaded, cylindrical epoxy body with cathode band marking; leads are matte tin-plated, solderable per J-STD-002 and JESD 22-B102; RoHS-compliant (E3 suffix); AEC-Q101 qualified (HE3 variant).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Current entry during forward conduction; tied to system ground or low-side return path | Enables standard unidirectional clamp configuration from protected line to ground; requires no external bias circuitry. |
| Cathode (banded end) | Protected line connection; reverse-biased during normal operation | Accepts transient energy from +120 V rail and shunts it to ground when voltage exceeds VBR; color band provides unambiguous polarity identification. |
Key Features
| Feature | Design Value |
|---|---|
| 5000 W peak pulse power (10/1000 μs) | Handles severe automotive load-dump transients (ISO 7637-2) and industrial inductive kickback without degradation. |
| AEC-Q101 qualification (via HE3 variant lineage) | Validated reliability for automotive under-hood applications including engine control units and ADAS power modules. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns response), improving protection margin for sensitive gate drivers. |
| UL 94 V-0 molded epoxy case | Ensures flame-retardant mechanical integrity in high-power density enclosures exposed to vibration or thermal cycling. |
| JESD 201 Class 1A whisker resistance (E3) | Prevents tin whisker growth in commercial-grade assemblies operating >10 years in benign environments. |
Applications
| Automotive Power Supply Protection | Industrial Motor Drive DC Bus |
|---|---|
Use Scenario: Protecting 12 V/24 V vehicle electronics against load dump pulses (up to 120 V, 400 ms) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and ECU input filter capacitor. Use Value: Clamps transients to ≤193 V within nanoseconds, preventing damage to microcontrollers and CAN transceivers downstream. |
Use Scenario: Safeguarding IGBT gate drivers and bus voltage monitors on 300–800 V DC links subject to regenerative braking spikes. IC Role / Device Role / Timing Role: Parallel-mounted TVS on low-voltage auxiliary supply (e.g., +120 V isolated rail feeding driver ICs). Use Value: Absorbs 5000 W surges without latch-up, enabling system reset after fault-replacing crowbar SCR circuits with simpler, solid-state protection. |
| Telecom DC-DC Converter Output | Renewable Energy Inverter Control Board |
Use Scenario: Securing 48 V output of telecom rectifiers against lightning-induced surges entering via long cable runs. IC Role / Device Role / Timing Role: Final-stage TVS on secondary side, downstream of output filter inductor. Use Value: Limits clamped voltage to 193 V while maintaining <2.0 μA leakage-preserving efficiency and meeting GR-1089-CORE immunity requirements. |
Use Scenario: Protecting microcontroller supply rails on solar inverter control boards exposed to grid-switching transients and PV array arcing. IC Role / Device Role / Timing Role: Standoff-rated TVS on 120 V auxiliary supply powering isolation amplifiers and gate drivers. Use Value: Operates reliably at +175 °C ambient near heatsinks, ensuring protection continuity during sustained overload conditions. |
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 SMAJ120A | Lower PPPM (400 W), SMA package (surface-mount), 120 V VWM, 133–147 V VBR, 193 V VC @ 2.1 A | Suitable for PCB space-constrained, lower-energy applications (e.g., sensor interfaces); not rated for 5000 W surges or AEC-Q101. | Select when board area is limited and surge energy is ≤400 W; avoid for automotive load dump or industrial motor drive use. |
| ON Semiconductor 1.5KE120A | Same VWM/VBR/VC specs, but 1500 W PPPM (10/1000 μs), DO-201 package, 175 °C TJ max, non-AEC-Q101 | Valid for general-purpose industrial protection where 1500 W suffices; lacks automotive qualification and higher surge margin. | Choose for cost-sensitive, non-automotive designs needing proven 120 V clamping but not 5 kW capability. |
Compared with SMAJ120A and 1.5KE120A, the 5KP120A-E3/51 provides 3.3× and 3.3× higher peak pulse power respectively, retains identical clamping voltage at rated current, and is AEC-Q101 qualified-making it the only option among the three validated for under-hood automotive deployment with full ISO 7637-2 compliance.
Availability
5KP120A-E3/51 is available at Aetrix Electronics and suitable for automotive power systems, industrial motor drives, telecom rectifier outputs, and renewable energy inverter control boards requiring stable component supply with guaranteed long-term traceability.
Supply support for 5KP120A-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, power handling, and automotive-grade qualification.
The 5KP series was engineered specifically for high-energy transient suppression in switching power supply outputs and industrial DC bus protection-delivering 5 kW surge capability in a rugged, axial-leaded P600 package.
FAQ
What is the clamping voltage of the 5KP120A-E3/51 under maximum surge conditions?
The 5KP120A-E3/51 has a maximum clamping voltage (VC) of 193 V when subjected to its rated peak pulse current of 25.9 A (10/1000 μs waveform). This value is measured per JEDEC test conditions and ensures downstream components see no more than 193 V during a full 5000 W transient event. The clamping performance is guaranteed across the full operating temperature range up to +175 °C junction temperature.
Is the 5KP120A-E3/51 suitable for automotive applications?
Yes-the 5KP120A-E3/51 is manufactured to meet AEC-Q101 qualification requirements (as confirmed by the HE3 variant lineage and documentation in Vishay's 88308 datasheet). It is routinely deployed in automotive power distribution modules, engine control units, and ADAS subsystems for load dump and ISO 7637-2 transient protection. Its P600 package and +175 °C rating support under-hood thermal environments.
What does the "E3/51" suffix indicate in 5KP120A-E3/51?
The "E3" suffix denotes RoHS-compliant, commercial-grade construction with JESD 201 Class 1A whisker resistance; "/51" specifies the packaging format-51 indicates 500-piece bulk pack (not tape-and-reel). This differs from /54 (800-piece tape-and-reel) and confirms the part is supplied in industry-standard bulk packaging suitable for manual or selective soldering processes.
How does the 5KP120A-E3/51 compare to bidirectional TVS diodes?
The 5KP120A-E3/51 is unidirectional only, meaning it conducts in forward bias and clamps in reverse-ideal for protecting positive DC rails referenced to ground. Unlike bidirectional variants (e.g., 5KP120CA), it offers lower leakage (<2.0 μA vs. ~5 μA) and tighter VBR tolerance in single-polarity configurations, but cannot protect AC lines or floating rails without additional circuitry.
Can the 5KP120A-E3/51 be used in parallel for higher surge capacity?
No-parallel operation of 5KP120A-E3/51 devices is not recommended due to mismatched VBR tolerances (133–147 V) causing current imbalance and premature failure of the unit with lower breakdown voltage. For higher energy handling, select a single higher-rated device (e.g., 5KP150A) or implement active crowbar circuits instead.
5KP120A-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):
- 120V
- Voltage - Breakdown (Min):
- 133V
- Voltage - Clamping (Max) @ Ipp:
- 193V
- Current - Peak Pulse (10/1000µs):
- 25.9A
- 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
5KP120A-E3/51 FAQ
1.How can I place an order for 5KP120A-E3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP120A-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 5KP120A-E3/51 reliable?
The price and inventory of 5KP120A-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 5KP120A-E3/51 is usually 5 days.
3.What payment methods are accepted for 5KP120A-E3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP120A-E3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP120A-E3/51?
5KP120A-E3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP120A-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 5KP120A-E3/51?
For technical support, including 5KP120A-E3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP120A-E3/51 requirements.
6.How does Aetrix verify that 5KP120A-E3/51 is sourced from the original manufacturer or authorized distributors?
All 5KP120A-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 5KP120A-E3/51 meets industry standards.
7.What is the process for return or replacement of 5KP120A-E3/51?
All 5KP120A-E3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP120A-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 5KP120A-E3/51 part is unused and in its original packaging.
Return procedure for 5KP120A-E3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
5KP120A-E3/51 Tags
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