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Vishay General Semiconductor - Diodes Division P4SMA36CAHE3/61
- Part No.:
- P4SMA36CAHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA36CAHE3/61.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,392
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Product details
Overview
P4SMA36CAHE3/61 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on signal and power lines. It features a 36 V standoff voltage (VWM), 40.9–45.2 V breakdown voltage (VBR) at 1 mA, 49.9 V maximum clamping voltage (VC) at 8.0 A peak pulse current (IPPM), and 400 W peak pulse power rating with 10/1000 µs waveform - suitable for protecting automotive sensor interfaces and industrial I/O lines.
For engineers reviewing the P4SMA36CAHE3/61 datasheet, P4SMA36CAHE3/61 pinout, P4SMA36CAHE3/61 application, or P4SMA36CAHE3/61 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, low incremental surge resistance, and compatibility with automated SMT assembly on 0.2" × 0.2" copper pads.
Technical Context
The P4SMA36CAHE3/61 operates as a bidirectional avalanche diode, symmetrically clamping both positive and negative transients without polarity marking. Its glass-passivated junction enables fast response time (<1 ns) and stable breakdown characteristics across -65 °C to +150 °C operating temperature range.
It delivers 400 W peak pulse power (10/1000 µs) up to 91 V, derating to 300 W above that threshold, with thermal resistance of 120 °C/W (junction-to-ambient) and 30 °C/W (junction-to-lead), requiring minimum recommended pad layout for rated performance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 30.8 V - maximum continuous reverse working voltage before clamping initiates |
| VBR (Breakdown Voltage) | 40.9–45.2 V at 1 mA - guaranteed avalanche conduction onset range under DC test conditions |
| VC (Clamping Voltage) | 49.9 V at 8.0 A IPPM - peak voltage seen by protected circuit during 10/1000 µs transient |
| PPPM (Peak Pulse Power) | 400 W - transient energy absorption capacity with 10/1000 µs waveform, derated above 91 V |
| ID (Reverse Leakage) | 1.0 µA max at VWM - minimal standby power loss and signal integrity impact in high-impedance circuits |
| TJ max | +150 °C - enables operation in under-hood automotive and industrial environments |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. Molding compound meets UL 94 V-0 flammability rating. Bidirectional configuration has no polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during negative transient | One end of symmetrical PN junction; connects to line being protected (e.g., RS-485 A/B) |
| Cathode | Current entry terminal during positive transient | Other end of symmetrical PN junction; ties to same line as Anode - forms bidirectional clamp |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or differential signal lines (e.g., CAN, RS-485) without polarity concerns |
| AEC-Q101 qualification | Validated for automotive electronics per stress test requirements, supporting use in ADAS sensor modules and body control units |
| 400 W peak pulse power | Withstands ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 surge events when mounted on 0.2" × 0.2" copper pads |
| Glass passivated junction | Ensures stable VBR over lifetime and improved moisture resistance versus epoxy-passivated alternatives |
| MSL Level 1 | Unlimited floor life at ≤30 °C/60% RH; supports standard reflow without baking preconditioning |
Applications
| Automotive Sensor Interface Protection | Industrial RS-485 Communication Line |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine control modules exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Bidirectional TVS clamping transient spikes before they reach ADC input or signal conditioning circuitry. Use Value: Prevents sensor signal corruption and microcontroller reset events during 12 V system transients up to ±400 W. |
Use Scenario: Safeguarding half-duplex RS-485 transceivers in factory automation PLCs connected to long cable runs subject to EFT and lightning-induced surges. IC Role / Device Role / Timing Role: Low-capacitance (≈100 pF at 0 V) bidirectional clamp placed across A/B differential pair. Use Value: Maintains signal integrity at 250 kbps while limiting common-mode transients to <50 V at the transceiver pins. |
| Consumer Appliance Motor Drive I/O | Telecom DSL Line Interface |
Use Scenario: Shielding microcontroller GPIOs driving relays or triacs in smart home appliances from back-EMF spikes generated by AC motor switching. IC Role / Device Role / Timing Role: Fast-response (sub-nanosecond) transient suppressor placed at PCB edge between MCU and relay driver IC. Use Value: Eliminates false triggering and latch-up in 3.3 V/5 V logic due to 8.3 ms surge currents up to 40 A (IFSM). |
Use Scenario: Front-end protection of ADSL/VDSL line interface ICs against induced surges from telephone line coupling and nearby lightning strikes. IC Role / Device Role / Timing Role: Primary-level TVS on tip/ring lines upstream of transformer and line driver, rated for repeated 10/1000 µs threats. Use Value: Enables compliance with ITU-T K.21 basic protection level using a single discrete device per line pair. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36CA | Higher 600 W PPPM rating; larger SMB (DO-214AA) package; 55.2 V VC at 10.3 A IPPM | Better suited for higher-energy transients; requires larger PCB footprint and different pad layout | Select when surge margin exceeds 400 W and board space allows SMB footprint |
| 1.5KE36CA | Through-hole DO-201 package; 1500 W PPPM; 58.1 V VC at 25.8 A IPPM; higher junction capacitance | Designed for legacy through-hole designs or higher-power primary protection stages | Choose only for prototyping or repair where SMT is not feasible; not drop-in compatible |
Compared with SMBJ36CA and 1.5KE36CA, the P4SMA36CAHE3/61 offers optimal balance of AEC-Q101 qualification, compact SMA footprint, and sufficient 400 W surge handling for secondary-level protection in space-constrained automotive and industrial PCBs.
Availability
P4SMA36CAHE3/61 is available at Aetrix Electronics and suitable for automotive sensor modules, industrial communication interfaces, consumer appliance motor controls, and telecom line protection requiring stable component supply and AEC-Q101 compliance.
Supply support for P4SMA36CAHE3/61 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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P4SMA Series targets cost-sensitive, high-volume transient protection needs in automotive, industrial, and communications systems - delivering standardized TVS performance in compact, AEC-Q101-qualified surface-mount packages.
FAQ
What does the "CA" suffix indicate in P4SMA36CAHE3/61?
The "CA" suffix denotes a bidirectional configuration: the P4SMA36CAHE3/61 clamps voltage transients in both polarities symmetrically, making it ideal for protecting AC-coupled or differential signal lines like RS-485 or CAN without requiring polarity-aware placement. This differs from unidirectional "A" variants that require cathode orientation.
Is P4SMA36CAHE3/61 suitable for automotive applications?
Yes, the P4SMA36CAHE3/61 is AEC-Q101 qualified (as indicated by the "HE3" suffix), meaning it has passed rigorous stress tests for automotive use including temperature cycling, high-temperature reverse bias, and ESD. It is commonly deployed in engine control units, body electronics, and ADAS sensor interfaces where reliability under harsh conditions is critical.
What is the maximum clamping voltage of P4SMA36CAHE3/61 under surge conditions?
The P4SMA36CAHE3/61 has a maximum clamping voltage (VC) of 49.9 V at 8.0 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value represents the highest voltage imposed on the protected circuit during standardized surge testing and is confirmed in the Vishay datasheet revision 09-Jan-2024, page 2.
How does the SMA (DO-214AC) package of P4SMA36CAHE3/61 compare to SMB or SMC packages?
The SMA package of P4SMA36CAHE3/61 measures 4.93 mm × 3.99 mm × 2.29 mm - smaller than SMB (DO-214AA) and significantly smaller than SMC (DO-214AB). This enables higher board density in space-constrained designs, though its 400 W PPPM rating is lower than SMBJ (600 W) or SMCJ (1500 W) counterparts. Thermal performance relies on proper 0.2" × 0.2" copper pad layout.
Does P4SMA36CAHE3/61 require special handling or PCB layout considerations?
Yes - the P4SMA36CAHE3/61 must be mounted on minimum recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve its rated 400 W peak pulse power. Smaller pads cause thermal derating. Also, as an MSL Level 1 device, it may be placed directly into reflow without baking, but lead-free solder profiles must stay within JEDEC limits (peak 260 °C).
P4SMA36CAHE3/61 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:
- Discontinued at Digi-Key
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA36CAHE3/61 FAQ
1.How can I place an order for P4SMA36CAHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA36CAHE3/61 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 P4SMA36CAHE3/61 reliable?
The price and inventory of P4SMA36CAHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA36CAHE3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA36CAHE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA36CAHE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA36CAHE3/61?
P4SMA36CAHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA36CAHE3/61 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 P4SMA36CAHE3/61?
For technical support, including P4SMA36CAHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA36CAHE3/61 requirements.
6.How does Aetrix verify that P4SMA36CAHE3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA36CAHE3/61 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 P4SMA36CAHE3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA36CAHE3/61?
All P4SMA36CAHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA36CAHE3/61, 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 P4SMA36CAHE3/61 part is unused and in its original packaging.
Return procedure for P4SMA36CAHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA36CAHE3/61 Tags
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