My Inquiry
My Account
Vishay General Semiconductor - Diodes Division TPSMA22HE3_A/H
- Part No.:
- TPSMA22HE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
TPSMA22HE3_A/H.pdf
- Description:
- TVS DIODE 17.8VWM 31.9VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,626
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPSMA22HE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) in SMA (DO-214AC) package, rated for 22 V breakdown voltage (VBR = 20.9–23.1 V), 400 W peak pulse power (10/1000 µs), and 13.1 A peak pulse current (IPPM). It operates up to 185 °C junction temperature and is AEC-Q101 qualified for automotive electronics protection.
For engineers reviewing the TPSMA22HE3_A/H datasheet, TPSMA22HE3_A/H pinout, TPSMA22HE3_A/H application, or TPSMA22HE3_A/H equivalent, key selection criteria include clamping voltage (VC = 30.6 V at IPPM), low leakage (<1 µA at VWM = 18.8 V), unidirectional polarity, and MSL Level 1 reflow compatibility - critical for high-reliability automotive and industrial PCB designs.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable clamping under repetitive transients. Its 185 °C maximum junction temperature and AEC-Q101 qualification confirm suitability for under-hood automotive environments where thermal stress and long-term reliability are paramount.
The device exhibits excellent surge response with <1 ns typical response time and low incremental surge resistance, enabling effective suppression of fast-rising ESD and lightning-induced transients on power rails and signal lines. Clamping performance is specified at 30.6 V under 13.1 A 10/1000 µs pulses, with VWM = 18.8 V ensuring minimal interference during normal operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 20.9 / 22.0 / 23.1 V - ensures reliable triggering above system operating voltage while maintaining margin against false conduction |
| VWM | 18.8 V - maximum continuous reverse working voltage; sets upper limit for safe DC bias without leakage degradation |
| VC @ IPPM | 30.6 V - clamped voltage during 13.1 A transient; defines protected circuit's maximum overvoltage exposure |
| PPPM | 400 W - peak pulse power handling per 10/1000 µs waveform; supports robust surge immunity per IEC 61000-4-5 |
| IFSM | 40 A - 8.3 ms half-sine surge rating; validates capability to survive motor-switching or load-dump events |
| TJ max. | 185 °C - enables use in high-temperature zones (e.g., engine control units) without derating penalties |
| Polarity | Unidirectional - protects only against positive transients relative to cathode; requires correct orientation in series with supply rail |
Pinout & Package
SMA (DO-214AC) surface-mount package with matte tin-plated leads, UL 94 V-0 molding compound, and cathode band marking. Compliant with J-STD-002 solderability and JESD 22-B102 whisker testing (HE3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Anode of internal PN junction | Connected to protected line (e.g., +12 V rail); clamps when voltage exceeds VBR relative to anode |
| Anode | Cathode of internal PN junction | Typically tied to ground or lower-potential reference; completes conduction path during transient |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation optimized design | Enables stable VBR and leakage performance across 185 °C operation and 1000+ thermal cycles |
| AEC-Q101 qualification (HE3 suffix) | Validates reliability for automotive applications including engine control, body electronics, and ADAS power domains |
| 400 W peak pulse power (10/1000 µs) | Meets IEC 61000-4-5 Level 4 surge immunity requirements for industrial and automotive subsystems |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free SMT assembly without moisture sensitivity concerns or baking requirements |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes overvoltage stress on downstream ICs compared to higher-ratio TVS devices |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Suppressing load-dump transients (up to ±60 V, 100 ms) on 12 V battery-fed ECUs in passenger vehicles. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery input and DC-DC converter input stage. Use Value: Limits voltage seen by LDOs and microcontrollers to ≤30.6 V, preventing latch-up or oxide damage during ISO 7637-2 Pulse 5a events. | Use Scenario: Protecting analog front-end inputs of pressure/temperature sensors in PLC modules exposed to relay-coil switching noise. IC Role / Device Role / Timing Role: TVS connected across sensor supply and ground, shunting fast 1 kV/µs spikes induced by nearby 24 V solenoid actuation. Use Value: Clamps transients within 1 ns, holding sensor IC supply below absolute maximum rating (typically 36 V) without affecting 0–5 V signal integrity. |
| Telecom Power Supply Input | Consumer Device USB Port Protection |
Use Scenario: Safeguarding AC/DC adapter outputs feeding PoE-powered switches against lightning-induced surges on building wiring. IC Role / Device Role / Timing Role: Primary TVS on secondary-side 48 V output rail, upstream of DC-DC converters. Use Value: Absorbs 400 W surges per IEC 61000-4-5, reducing need for multi-stage protection and lowering BOM cost vs. hybrid MOV+TVS solutions. | Use Scenario: Preventing ESD damage to USB-C controller ICs during hot-plug events in portable speakers and docking stations. IC Role / Device Role / Timing Role: Unidirectional TVS on VBUS line, placed immediately after connector to intercept ±15 kV contact discharge per IEC 61000-4-2. Use Value: Sub-30 V clamping ensures USB PD negotiation ICs remain within 36 V absolute max rating, avoiding brownout or reset during ESD events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22A | Same SMA package, 22 V VBR, but rated for 400 W (10/1000 µs) and 13.3 A IPPM; no AEC-Q101 qualification | Not approved for automotive production; suitable for industrial/commercial designs with lower reliability requirements | Select SMAJ22A only if AEC-Q101 is not mandated and cost sensitivity outweighs long-term field reliability needs. |
| TPSMA22AHM3_A/H | Identical electrical specs and AEC-Q101 qualification; halogen-free molding compound (HM3 suffix) vs. HE3's RoHS-compliant standard compound | Required where halogen-free compliance (e.g., IEC 61249-2-21) is enforced in final product certification | Choose TPSMA22AHM3_A/H when environmental compliance mandates halogen-free materials, otherwise TPSMA22HE3_A/H is preferred for general automotive use. |
Compared with SMAJ22A and TPSMA22AHM3_A/H, the TPSMA22HE3_A/H provides AEC-Q101 validation and standard RoHS compliance in a thermally robust 185 °C package - making it the optimal choice for cost-sensitive, high-volume automotive applications where halogen-free is not required.
Availability
TPSMA22HE3_A/H is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface protection, and telecom power supply input applications requiring stable component supply, AEC-Q101 assurance, and high-temperature operational continuity.
Supply support for TPSMA22HE3_A/H 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, MOSFETs, and optoelectronics with emphasis on reliability, thermal performance, and automotive-grade qualification.
The TPSMAxxA family was designed specifically for high-temperature, high-reliability transient suppression in automotive and industrial systems - delivering 185 °C operation, AEC-Q101 validation, and consistent clamping performance across extended lifecycles.
FAQ
What is the breakdown voltage tolerance for TPSMA22HE3_A/H?
The TPSMA22HE3_A/H has a specified breakdown voltage range of 20.9 V (minimum) to 23.1 V (maximum) at 1 mA test current, with a nominal value of 22.0 V. This ±5% tolerance ensures predictable clamping onset while accommodating process variation and temperature drift, and is verified per ANSI/IEEE C62.35 standards in the official Vishay datasheet (Doc. #88405).
Is TPSMA22HE3_A/H suitable for bidirectional transient protection?
No, TPSMA22HE3_A/H is unidirectional only, as confirmed in the Vishay datasheet's FEATURES section and ELECTRICAL CHARACTERISTICS table. It protects against positive transients on the cathode side relative to anode. For bidirectional protection, a separate device such as P6SMB22CA or SMBJ22CA must be selected - TPSMA22HE3_A/H cannot be used in reverse-biased configurations.
What is the maximum clamping voltage of TPSMA22HE3_A/H under surge conditions?
The maximum clamping voltage (VC) of TPSMA22HE3_A/H is 30.6 V at 13.1 A peak pulse current (IPPM) using the standardized 10/1000 µs waveform. This value is measured per Figure 3 in the Vishay datasheet and defines the highest voltage imposed on protected circuitry during worst-case surge events.
Does TPSMA22HE3_A/H require special PCB layout considerations?
Yes - the Vishay datasheet specifies mounting on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve rated 400 W pulse power. Smaller pads cause thermal derating; insufficient copper reduces surge current handling and risks solder joint failure. The recommended pad layout is provided in the PACKAGE OUTLINE DIMENSIONS section of Doc. #88405.
How does the HE3 suffix affect the TPSMA22HE3_A/H specification?
The HE3 suffix indicates RoHS-compliant construction and AEC-Q101 qualification, distinguishing it from non-qualified variants. It confirms compliance with JESD201 Class 2 whisker resistance, MSL Level 1 reflow rating (260 °C), and full automotive stress testing - all explicitly validated for TPSMA22HE3_A/H in Vishay's qualification report referenced in Doc. #88405.
TPSMA22HE3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 17.8V
- Voltage - Breakdown (Min):
- 19.8V
- Voltage - Clamping (Max) @ Ipp:
- 31.9V
- Current - Peak Pulse (10/1000µs):
- 12.5A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
TPSMA22HE3_A/H FAQ
1.How can I place an order for TPSMA22HE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMA22HE3_A/H 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 TPSMA22HE3_A/H reliable?
The price and inventory of TPSMA22HE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMA22HE3_A/H is usually 5 days.
3.What payment methods are accepted for TPSMA22HE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMA22HE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMA22HE3_A/H?
TPSMA22HE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMA22HE3_A/H 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 TPSMA22HE3_A/H?
For technical support, including TPSMA22HE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMA22HE3_A/H requirements.
6.How does Aetrix verify that TPSMA22HE3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMA22HE3_A/H 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 TPSMA22HE3_A/H meets industry standards.
7.What is the process for return or replacement of TPSMA22HE3_A/H?
All TPSMA22HE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMA22HE3_A/H, 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 TPSMA22HE3_A/H part is unused and in its original packaging.
Return procedure for TPSMA22HE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMA22HE3_A/H 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 …
