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Vishay General Semiconductor - Diodes Division P4SMA36CA-E3/61
- Part No.:
- P4SMA36CA-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA36CA-E3/61.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,260
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Product details
Overview
P4SMA36CA-E3/61 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for clamping voltage transients on signal and power lines. It features a 36 V standoff voltage (VWM), 400 W peak pulse power (10/1000 µs), and clamps to ≤49.9 V at 8.0 A peak pulse current - deployed in automotive sensor interfaces, industrial I/O protection, and telecom line surge suppression.
For engineers reviewing the P4SMA36CA-E3/61 datasheet, P4SMA36CA-E3/61 pinout, P4SMA36CA-E3/61 application, or P4SMA36CA-E3/61 equivalent, key selection criteria include bidirectional clamping capability, SMA (DO-214AC) package compatibility, AEC-Q101 qualification status, thermal resistance (RθJA = 120 °C/W), and compliance with UL 497B surge protector classification.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, with identical breakdown (VBR = 34.2–37.8 V @ 1 mA), clamping (VC ≤ 49.9 V @ IPPM = 8.0 A), and leakage (<1.0 µA @ VWM) characteristics across terminals. Its glass-passivated junction ensures stable performance under repetitive surge stress.
Designed for automated SMT placement, it meets J-STD-020 MSL Level 1 (peak reflow 260 °C), has matte tin-plated leads per JESD 22-B102, and achieves UL 94 V-0 flammability rating in its SMA molding compound - enabling use in high-reliability commercial and automotive-grade assemblies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 30.8 V - maximum continuous reverse working voltage before conduction begins |
| VBR (Breakdown) | 34.2–37.8 V @ 1 mA - guaranteed conduction onset in either polarity |
| VC (Clamping) | ≤49.9 V @ 8.0 A (10/1000 µs) - limits transient voltage seen by downstream ICs |
| PPPM | 400 W - peak surge power handling capacity under standard lightning waveform |
| IPPM | 8.0 A - maximum non-repetitive surge current the device safely clamps |
| RθJA | 120 °C/W - thermal resistance from junction to ambient, defines derating above 25 °C |
| TJmax | +150 °C - maximum junction temperature, supports operation in under-hood automotive environments |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, bidirectional - no polarity marking; symmetrical two-terminal construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (bidirectional) | Surge current path | Identical terminal behavior in both directions; connects across protected line and ground or differential pair |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| 400 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV, 2 Ω source) on 24 V industrial buses |
| AEC-Q101 qualified option | Available as P4SMA36CAHE3_A variant - validated for automotive sensor and body electronics |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ESD, inductive switch-off) |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking - reduces manufacturing overhead |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN FD and LIN bus transceivers from load-dump and ISO 7637-2 pulses in engine control modules. IC Role / Device Role / Timing Role: Bidirectional TVS placed between signal line and chassis ground to clamp transients before they reach the transceiver's input pins. Use Value: Maintains signal integrity during 12 V/24 V system surges up to 400 W, preventing latch-up or permanent damage to communication ICs. |
Use Scenario: Safeguarding analog input channels (4–20 mA, 0–10 V) in programmable logic controllers exposed to field wiring surges. IC Role / Device Role / Timing Role: Low-capacitance TVS shunting induced transients from long sensor cables directly to common ground plane. Use Value: Clamps 10/1000 µs surges to ≤49.9 V while adding <1 pF parasitic capacitance - preserving bandwidth and measurement accuracy. |
| Telecom Line Interface | Consumer Power Adapter Input |
|
Use Scenario: Secondary-side surge protection on Ethernet PHY interface lines (e.g., PoE-powered devices). IC Role / Device Role / Timing Role: Bidirectional clamping device placed across differential pairs (e.g., TX+/TX−) to suppress common-mode transients. Use Value: Symmetric response ensures equal clamping on both lines, eliminating DC offset shift and maintaining signal balance. |
Use Scenario: Input-stage transient suppression on AC-DC adapter primary-side rectifier outputs. IC Role / Device Role / Timing Role: Fast-response TVS absorbing switching spikes from MOSFETs and transformer leakage inductance. Use Value: 8.0 A peak current rating handles repetitive 50/60 Hz line-switching surges without degradation over >10⁵ cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36CA (Bourns) | Same VWM/VC, but SMB package (DO-214AA); 600 W PPPM; RθJA = 85 °C/W | Higher power handling, larger footprint; requires PCB pad redesign | Select when higher surge margin is needed and board space allows SMB layout |
| 1.5KE36CA (ON Semiconductor) | Through-hole DO-201 package; 1500 W PPPM; VC = 58.1 V @ 25.8 A; not RoHS-compliant in legacy variants | Not SMT-compatible; suited for prototyping or high-energy legacy systems | Choose only for through-hole designs requiring >400 W clamping; not drop-in for P4SMA36CA-E3/61 |
Compared with SMBJ36CA and 1.5KE36CA, P4SMA36CA-E3/61 offers optimal balance of SMT manufacturability, AEC-Q101 readiness, and standardized 400 W surge rating in the compact SMA footprint - making it preferred for volume automotive and industrial PCBs where layout density and reflow compatibility are critical.
Availability
P4SMA36CA-E3/61 is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and telecom line interface circuits requiring stable component supply, RoHS compliance, and consistent surge performance across production batches.
Supply support for P4SMA36CA-E3/61 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, and protection devices with emphasis on reliability, precision, and automotive qualification.
The P4SMA Series targets cost-sensitive yet robust transient suppression in automotive, industrial, and telecom applications - delivering standardized TVS performance in the widely adopted SMA package with AEC-Q101 and UL 497B certifications.
FAQ
What is the clamping voltage of P4SMA36CA-E3/61 at its rated peak pulse current?
The P4SMA36CA-E3/61 clamps to a maximum of 49.9 V when subjected to an 8.0 A peak pulse current with a 10/1000 µs waveform. This value is measured under standard test conditions (TA = 25 °C) and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is P4SMA36CA-E3/61 suitable for automotive applications?
Yes, P4SMA36CA-E3/61 is RoHS-compliant and available in AEC-Q101-qualified variants (e.g., P4SMA36CAHE3_A). While the base P4SMA36CA-E3/61 itself carries the E3 suffix indicating commercial-grade RoHS compliance, its construction - including glass-passivated junction, MSL Level 1 rating, and -65 °C to +150 °C operating range - fully supports automotive under-hood and body electronics when used per qualified derivative specifications.
How does the bidirectional design of P4SMA36CA-E3/61 affect its circuit placement?
The bidirectional nature of P4SMA36CA-E3/61 means it has no anode/cathode orientation - both terminals behave identically. It is placed directly across the protected nodes (e.g., line-to-line or line-to-ground), eliminating polarity concerns during layout or assembly. This simplifies routing in AC-coupled or floating interfaces such as RS-485, CAN, or Ethernet PHYs, where unidirectional TVS diodes would require careful orientation or dual-device configurations.
What is the thermal resistance of P4SMA36CA-E3/61, and how does it impact power derating?
P4SMA36CA-E3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on 0.2" × 0.2" copper pads. This value dictates linear derating of its 3.3 W steady-state power dissipation above 25 °C ambient - for example, at 75 °C ambient, allowable PD drops to ~1.65 W. Engineers must verify PCB copper area and airflow to maintain safe junction temperatures during sustained leakage or frequent surge events.
Does P4SMA36CA-E3/61 meet any safety certifications for surge protection systems?
Yes, P4SMA36CA-E3/61 is Underwriters Laboratory (UL) recognized under file E136766 for protector classification per UL 497B - confirming its suitability in telecom and data line surge protection systems. This certification covers both unidirectional and bidirectional variants in the P4SMA family and validates performance against standardized surge waveforms and insulation requirements for end-equipment safety compliance.
P4SMA36CA-E3/61 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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 30.8V
- Voltage - Breakdown (Min):
- 34.2V
- Voltage - Clamping (Max) @ Ipp:
- 49.9V
- Current - Peak Pulse (10/1000µs):
- 8A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA36CA-E3/61 FAQ
1.How can I place an order for P4SMA36CA-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA36CA-E3/61 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 P4SMA36CA-E3/61 reliable?
The price and inventory of P4SMA36CA-E3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA36CA-E3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA36CA-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA36CA-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA36CA-E3/61?
P4SMA36CA-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA36CA-E3/61 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 P4SMA36CA-E3/61?
For technical support, including P4SMA36CA-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA36CA-E3/61 requirements.
6.How does Aetrix verify that P4SMA36CA-E3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA36CA-E3/61 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 P4SMA36CA-E3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA36CA-E3/61?
All P4SMA36CA-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA36CA-E3/61, 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 P4SMA36CA-E3/61 part is unused and in its original packaging.
Return procedure for P4SMA36CA-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA36CA-E3/61 Tags
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