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Vishay General Semiconductor - Diodes Division P4SMA100AHE3/5A
- Part No.:
- P4SMA100AHE3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA100AHE3/5A.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,996
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Product details
Overview
P4SMA100AHE3/5A from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P4SMA series, designed for clamping voltage transients on power and signal lines. It features a 100 V standoff voltage (VWM), 105 V minimum breakdown voltage (VBR), 137 V maximum clamping voltage (VC) at 2.2 A peak pulse current (IPPM), and 400 W peak pulse power (PPPM) with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the P4SMA100AHE3/5A datasheet, P4SMA100AHE3/5A pinout, P4SMA100AHE3/5A application, or P4SMA100AHE3/5A equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, SMA (DO-214AC) package dimensions, thermal resistance data, and real-world protection use cases - all aligned to Vishay Document #88367 (Rev. 09-Jan-2024).
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, optimized for fast transient suppression (<1 ns response time implied by TransZORB® architecture). Its glass-passivated junction ensures stable leakage performance (ID ≤ 1.0 µA at VWM = 85.5 V) and robust surge handling up to 40 V reverse standoff margin before breakdown.
The device is rated for 150 °C maximum junction temperature and exhibits 120 °C/W junction-to-ambient thermal resistance (RθJA) when mounted on 0.2" × 0.2" copper pads. It meets J-STD-020 MSL Level 1 and is AEC-Q101 qualified under automotive ordering code HE3, confirming suitability for under-hood and ADAS power rail protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 85.5 V - Maximum continuous reverse operating voltage before significant leakage; defines safe DC/AC bias limit for protected line. |
| VBR (Breakdown Voltage) | 95.0–105 V at IT = 1.0 mA - Voltage range where device transitions from high-impedance to low-impedance clamping state; tight tolerance supports predictable trip point. |
| VC (Clamping Voltage) | 137 V at IPPM = 2.2 A (10/1000 µs) - Peak voltage seen by downstream circuit during surge; determines minimum required voltage margin for protected ICs. |
| PPPM (Peak Pulse Power) | 400 W - Maximum transient energy absorption capability under standard 10/1000 µs waveform; derates to 300 W above 91 V per spec note. |
| ID (Reverse Leakage) | ≤ 1.0 µA at VWM - Ultra-low leakage preserves signal integrity and battery life in always-on circuits like automotive sensors. |
| TJ max. | 150 °C - Enables operation in high-temperature environments such as engine control units and industrial motor drives. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, humidity bias, and surge endurance per AEC stress test protocols. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward conduction mode | Connected to lower-potential side of protected line; enables unidirectional surge shunting to ground when cathode is held at higher potential. |
| Cathode (marked with band) | Current exit terminal in forward conduction; clamping reference node | Typically tied to system ground or supply rail; defines polarity-sensitive clamping direction and must be correctly oriented to avoid reverse-bias failure. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Enables robust protection against IEC 61000-4-5 Level 3 surges (1 kV/2 Ω) on 12 V/24 V automotive power rails without derating. |
| AEC-Q101 qualification (HE3 suffix) | Confirms long-term reliability under automotive thermal, mechanical, and electrical stress profiles - required for ECU, body control, and ADAS modules. |
| Glass passivated chip junction | Provides stable leakage current over temperature and lifetime, critical for low-power sensor interfaces and battery-backed systems. |
| MSL Level 1 (260 °C peak reflow) | Supports standard lead-free SMT assembly without moisture sensitivity concerns or baking requirements. |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (e.g., load dump), improving protection margin for sensitive gate drivers. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Suppressing load-dump transients (up to 60 V, 400 ms) and jump-start spikes on 12 V/24 V vehicle battery lines feeding ECUs and lighting controllers. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between battery rail and input of DC/DC converter or LDO regulator. Use Value: Limits voltage to ≤137 V during 2.2 A surge, preventing damage to downstream PMICs and microcontrollers while maintaining AEC-Q101 compliance. |
Use Scenario: Protecting analog outputs and digital I/O pins of industrial pressure, temperature, and position sensors exposed to ESD and inductive switching noise. IC Role / Device Role / Timing Role: Point-of-entry transient suppressor on sensor signal lines (e.g., 4–20 mA loop, CAN stubs, or SPI bus traces). Use Value: Clamps sub-100 ns ESD events to <137 V with <1 µA leakage, preserving signal fidelity and avoiding false triggers in precision measurement systems. |
| Telecom Power Supply Input | Consumer Device USB/Power Port Protection |
|
Use Scenario: Safeguarding AC/DC adapter inputs and PoE-powered equipment front-ends against lightning-induced surges and AC line faults. IC Role / Device Role / Timing Role: Primary-stage TVS on secondary-side DC output (e.g., 48 V telecom supply) before DC/DC isolation stage. Use Value: Absorbs 400 W transient energy without degradation, meeting IEC 61000-4-5 surge immunity requirements for Class B equipment. |
Use Scenario: Adding secondary-level surge protection to USB-C PD ports, wall adapters, and portable battery packs subject to user-handling ESD. IC Role / Device Role / Timing Role: Secondary clamping element downstream of primary fuse or polymer PTC, co-located with connector. Use Value: Provides <1 µA leakage at 85.5 V standby, enabling ultra-low quiescent current in always-connected consumer devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100A | Same VWM (85.5 V), higher VC (143 V at 2.1 A), SMB package (DO-214AA) - 2.6 mm wider body than SMA. | Lower power density; requires larger PCB area but offers slightly higher surge current rating (2.1 A vs. 2.2 A). | Select SMBJ100A only if board layout accommodates wider footprint and higher clamping voltage is acceptable. |
| 1.5SMC100A | Same VWM and VC specs, but SMC (DO-214AB) package - 3.5 mm body width, higher RθJA (100 °C/W), non-AEC-Q101. | Not qualified for automotive use; suitable for commercial/industrial applications where qualification is not mandated. | Choose 1.5SMC100A for cost-sensitive non-automotive designs where AEC-Q101 is unnecessary and larger pad area is available. |
Compared with SMBJ100A and 1.5SMC100A, P4SMA100AHE3/5A delivers identical clamping performance in a smaller SMA footprint, with AEC-Q101 validation and lower thermal resistance - making it optimal for space-constrained automotive modules requiring certified reliability.
Availability
P4SMA100AHE3/5A is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom DC supply surge suppression requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for P4SMA100AHE3/5A 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, efficiency, and application-specific performance.
The P4SMA series was developed to deliver high-power, low-leakage transient suppression in compact surface-mount packages for automotive, industrial, and telecom applications - with AEC-Q101 variants like P4SMA100AHE3/5A targeting mission-critical power rail protection.
FAQ
What is the maximum clamping voltage of P4SMA100AHE3/5A under surge conditions?
The P4SMA100AHE3/5A has a maximum clamping voltage (VC) of 137 V at 2.2 A peak pulse current with a 10/1000 µs waveform, as specified in Vishay Document #88367. This value represents the highest voltage imposed on the protected circuit during standardized surge testing and is critical for ensuring downstream ICs remain within their absolute maximum ratings. The clamping performance is guaranteed across the full operating temperature range and validated for AEC-Q101 compliance.
Is P4SMA100AHE3/5A suitable for automotive applications?
Yes, P4SMA100AHE3/5A is AEC-Q101 qualified (HE3 suffix), confirming its suitability for automotive applications including engine control units, body electronics, and ADAS power rails. It meets rigorous stress tests for temperature cycling, humidity bias, and surge endurance. The device's 150 °C maximum junction temperature, MSL Level 1 reflow compatibility, and low leakage (<1 µA at 85.5 V) further support deployment in harsh under-hood environments where reliability is non-negotiable.
What does the "HE3/5A" suffix mean in P4SMA100AHE3/5A?
In P4SMA100AHE3/5A, "HE3" denotes RoHS-compliant construction with AEC-Q101 qualification, while "5A" specifies packaging in 13-inch diameter plastic tape and reel containing 7500 units. This ordering code distinguishes it from smaller reels (e.g., /61 = 1800 units on 7-inch reel) and non-automotive variants (e.g., E3 = commercial grade only). The HE3 suffix confirms full automotive qualification per Vishay's internal certification process aligned with AEC stress test standards.
How does P4SMA100AHE3/5A compare to bidirectional TVS diodes like P4SMA100CA?
P4SMA100AHE3/5A is unidirectional and features a cathode band for polarity-sensitive placement, whereas P4SMA100CA is bidirectional with no polarity marking and symmetric clamping in both directions. The unidirectional version offers lower leakage (<1 µA vs. ≤2.5 µA for CA) and is preferred for DC power rail protection where polarity is fixed. Bidirectional types suit AC lines or differential signal pairs but sacrifice some leakage performance and require different layout considerations.
What is the thermal resistance of P4SMA100AHE3/5A, and how does it affect PCB layout?
P4SMA100AHE3/5A has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as defined in Vishay Document #88367. This value assumes minimal copper area; increasing pad size or adding thermal vias reduces effective RθJA and improves surge survivability. For sustained high-duty-cycle transients, designers should verify junction temperature rise using PD = 3.3 W and ambient conditions to ensure TJ remains below 150 °C.
P4SMA100AHE3/5A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- P4SMA, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 85.5V
- Voltage - Breakdown (Min):
- 95V
- Voltage - Clamping (Max) @ Ipp:
- 137V
- Current - Peak Pulse (10/1000µs):
- 2.2A
- Power - Peak Pulse:
- 300W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA100AHE3/5A FAQ
1.How can I place an order for P4SMA100AHE3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA100AHE3/5A 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 P4SMA100AHE3/5A reliable?
The price and inventory of P4SMA100AHE3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA100AHE3/5A is usually 5 days.
3.What payment methods are accepted for P4SMA100AHE3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA100AHE3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA100AHE3/5A?
P4SMA100AHE3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA100AHE3/5A 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 P4SMA100AHE3/5A?
For technical support, including P4SMA100AHE3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA100AHE3/5A requirements.
6.How does Aetrix verify that P4SMA100AHE3/5A is sourced from the original manufacturer or authorized distributors?
All P4SMA100AHE3/5A 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 P4SMA100AHE3/5A meets industry standards.
7.What is the process for return or replacement of P4SMA100AHE3/5A?
All P4SMA100AHE3/5A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA100AHE3/5A, 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 P4SMA100AHE3/5A part is unused and in its original packaging.
Return procedure for P4SMA100AHE3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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