My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P6SMB36CAHM3/I
- Part No.:
- P6SMB36CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB36CAHM3/I.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,626
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6SMB36CAHM3/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P6SMB series, designed for clamping voltage transients on signal or power lines. It features a 36 V standoff voltage (VWM), 49.9 V maximum clamping voltage at 12.0 A peak pulse current, and 600 W peak pulse power capability with a 10/1000 μs waveform - deployed in automotive sensor interfaces, industrial I/O protection, and telecom line surge suppression.
For engineers reviewing the P6SMB36CAHM3/I datasheet, P6SMB36CAHM3/I pinout, P6SMB36CAHM3/I application, or P6SMB36CAHM3/I equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification status, SMB (DO-214AA) package thermal performance, and compliance with IEC 61000-4-2/4-5 transient immunity requirements.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, delivering identical clamping behavior for positive and negative transients - critical for AC-coupled or differential signal lines. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 μA at 30.8 V), while the MSL Level 1 rating supports lead-free reflow up to 260 °C without popcorn failure.
The device exhibits a typical junction-to-lead thermal resistance of 20 °C/W and junction-to-ambient of 100 °C/W, enabling reliable operation at TJ ≤ 150 °C under repetitive surge conditions. Its 0.099 %/°C temperature coefficient of VBR ensures predictable voltage drift over automotive (-40 °C to +125 °C ambient) operating ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 30.8 V - Maximum continuous reverse voltage before significant conduction begins; defines safe operating margin below clamping threshold. |
| VBR (Breakdown) | 34.2 V min / 37.8 V max at 1.0 mA - Confirmed avalanche onset range; ensures tight tolerance for precise transient detection. |
| VC (Clamping) | 49.9 V at 12.0 A IPPM - Peak voltage seen by protected circuit during 10/1000 μs surge; directly limits stress on downstream ICs. |
| PPPM | 600 W - Sustains single 10/1000 μs surges up to this power level; meets IEC 61000-4-5 Level 4 (4 kV) test requirements. |
| Package | SMB (DO-214AA) - Standardized 2-pin surface-mount outline with 5.59 mm × 3.94 mm footprint; compatible with automated pick-and-place and reflow. |
| AEC-Q101 | Qualified - Validated for automotive applications per stress test requirements including HTOL, TCT, and ESD; suffix HM3 denotes halogen-free RoHS-compliant variant. |
| TJ max | +150 °C - Maximum junction temperature; enables use in under-hood or high-power industrial environments with appropriate PCB copper area. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional - no polarity marking; symmetrical two-terminal construction with matte tin-plated leads solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity; no functional distinction - fully symmetrical conduction path. |
| Terminal 2 | Anode/Cathode (bidirectional) | Paired terminal completing the bidirectional clamp; enables placement across any AC or floating node without orientation constraints. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR and VC performance for ± polarity transients - eliminates need for dual unidirectional devices on differential lines. |
| 600 W peak pulse power | Withstands 10/1000 μs surges up to 12.0 A without degradation - sufficient for IEC 61000-4-5 open-circuit 4 kV tests on 2 Ω source impedance. |
| AEC-Q101 qualified (HM3) | Validated for automotive-grade reliability including temperature cycling, high-temperature operating life, and ESD robustness - suitable for ADAS sensor modules. |
| MSL Level 1 moisture sensitivity | Zero bake requirement prior to reflow; supports standard lead-free assembly at 260 °C peak without delamination risk. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ESD > 15 kV contact discharge) - improves protection fidelity for high-speed interfaces. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN FD or LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across signal pair or supply rail to limit transient excursions below IC absolute maximum ratings. Use Value: Prevents latch-up or gate oxide damage in 3.3 V/5 V automotive microcontrollers and transceivers during ISO 7637-2 Pulse 1/2a/5a events. |
Use Scenario: Shielding digital input/output channels on programmable logic controllers from field-induced surges caused by motor contactor switching or lightning-induced ground potential rise. IC Role / Device Role / Timing Role: Primary front-end transient suppressor mounted at connector interface, shunting energy before it reaches optocouplers or level-shifting buffers. Use Value: Enables compliance with IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) immunity standards without adding bulkier MOV-based solutions. |
| Telecom Line Interface | Consumer USB/Display Port ESD Guard |
Use Scenario: Safeguarding Ethernet PHYs, DSL line drivers, or RS-485 transceivers connected to outside plant wiring exposed to induced lightning surges. IC Role / Device Role / Timing Role: Fast-response parallel clamp between differential pair and ground, activated within <1 ns to limit common-mode overvoltage. Use Value: Maintains signal integrity by clamping transients to <50 V while preserving low capacitance (<100 pF) for 10/100 Mbps Ethernet operation. |
Use Scenario: Adding secondary ESD protection on USB 2.0 data lines or DisplayPort auxiliary channels where internal IC protection is insufficient for ±15 kV contact discharge. IC Role / Device Role / Timing Role: Low-capacitance external TVS placed adjacent to connector to absorb ESD energy before it couples into high-speed traces. Use Value: Reduces system-level ESD failure rate by lowering peak voltage seen at PHY pins to <30 V during IEC 61000-4-2 testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36CA | Same VWM/VBR/VC specs but lower PPPM (400 W); SMA package (smaller footprint, higher RθJA = 140 °C/W). | Limited to lower-energy transients (IEC 61000-4-2 only); unsuitable for IEC 61000-4-5 Level 4 surge. | Select when board space is constrained and surge threat level is limited to ESD/EFT only. |
| 1.5KE36CA | Higher PPPM (1500 W) but axial-leaded DO-201 package; slower response due to higher parasitic inductance. | Not SMT-compatible; requires through-hole assembly and larger PCB real estate; less effective for fast ESD. | Choose only for legacy through-hole designs or where extreme surge energy (>10 A IPPM) dominates design priority. |
Compared with SMAJ36CA and 1.5KE36CA, P6SMB36CAHM3/I delivers optimal balance of 600 W surge handling, SMB SMT compatibility, AEC-Q101 qualification, and low-profile packaging - making it the preferred choice for new automotive and industrial designs requiring validated reliability and automated assembly.
Availability
P6SMB36CAHM3/I 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, AEC-Q101 traceability, and consistent SMB package form factor.
Supply support for P6SMB36CAHM3/I 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, precision, and application-specific validation.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and communications systems - engineered for robust clamping, low leakage, and seamless integration into automated SMT production lines.
FAQ
What is the clamping voltage of P6SMB36CAHM3/I at its rated peak pulse current?
The P6SMB36CAHM3/I has a maximum clamping voltage (VC) of 49.9 V at 12.0 A peak pulse current (IPPM) under a 10/1000 μs waveform. This value is measured per JEDEC standards and represents the highest voltage the protected circuit will experience during a defined surge event - critical for ensuring downstream ICs remain within their absolute maximum voltage ratings. The P6SMB36CAHM3/I maintains this clamping performance bidirectionally.
Is P6SMB36CAHM3/I suitable for automotive applications?
Yes, P6SMB36CAHM3/I is AEC-Q101 qualified and manufactured with halogen-free, RoHS-compliant materials (HM3 suffix). It undergoes rigorous stress testing including temperature cycling, high-temperature operating life, and ESD verification - making it approved for use in automotive subsystems such as body control modules, ADAS sensor interfaces, and infotainment power rails. The P6SMB36CAHM3/I also meets MSL Level 1 for lead-free reflow compatibility.
How does the bidirectional configuration of P6SMB36CAHM3/I affect PCB layout?
The P6SMB36CAHM3/I has no polarity marking and functions identically in either orientation, simplifying PCB layout for differential or AC-coupled signals. Engineers can place the P6SMB36CAHM3/I across any two nodes without concern for anode/cathode alignment - reducing design iteration time and eliminating orientation-related assembly errors. Its SMB footprint also aligns with standard pick-and-place machine libraries.
What is the thermal resistance profile of P6SMB36CAHM3/I, and how does it impact derating?
P6SMB36CAHM3/I has a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W and junction-to-ambient (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" copper pads. This means power dissipation must be derated above 25 °C ambient - for example, at 85 °C ambient, the usable peak pulse power drops to ~420 W. Proper copper pour design around the P6SMB36CAHM3/I terminals is essential to maintain thermal performance and avoid premature failure.
Does P6SMB36CAHM3/I meet industry surge immunity standards like IEC 61000-4-5?
Yes, P6SMB36CAHM3/I's 600 W peak pulse power rating with a 10/1000 μs waveform corresponds to IEC 61000-4-5 Level 4 (4 kV line-to-earth, 2 Ω source impedance) when applied with appropriate PCB layout and grounding. Its 49.9 V clamping voltage ensures protected circuits remain within safe operating limits during standardized surge testing - verified in Vishay's application notes for telecom and industrial equipment designs using the P6SMB36CAHM3/I.
P6SMB36CAHM3/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, 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):
- 12A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB36CAHM3/I FAQ
1.How can I place an order for P6SMB36CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB36CAHM3/I 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 P6SMB36CAHM3/I reliable?
The price and inventory of P6SMB36CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB36CAHM3/I is usually 5 days.
3.What payment methods are accepted for P6SMB36CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB36CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB36CAHM3/I?
P6SMB36CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB36CAHM3/I 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 P6SMB36CAHM3/I?
For technical support, including P6SMB36CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB36CAHM3/I requirements.
6.How does Aetrix verify that P6SMB36CAHM3/I is sourced from the original manufacturer or authorized distributors?
All P6SMB36CAHM3/I 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 P6SMB36CAHM3/I meets industry standards.
7.What is the process for return or replacement of P6SMB36CAHM3/I?
All P6SMB36CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB36CAHM3/I, 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 P6SMB36CAHM3/I part is unused and in its original packaging.
Return procedure for P6SMB36CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB36CAHM3/I Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
