My Inquiry
My Account
Microchip Technology 1PMT5933A/TR7
- Part No.:
- 1PMT5933A/TR7
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5933A/TR7.pdf
- Description:
- DIODE ZENER 22V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,953
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1PMT5933A/TR7 from Microsemi is a 22 V, 3.0 W surface-mount Zener diode in the Powermite® package (DO-216), featuring 17.5 Ω dynamic impedance at 17 mA test current, 1 µA max reverse leakage at 16.7 V, and thermal resistance of 30°C/W junction-to-tab. It serves as a precision voltage reference or overvoltage clamp in power supply regulation and transient protection circuits.
For engineers reviewing the 1PMT5933A/TR7 datasheet, 1PMT5933A/TR7 pinout, 1PMT5933A/TR7 application, or 1PMT5933A/TR7 equivalent, key selection criteria include zener voltage tolerance (±5% standard), ESD rating (>16 kV HBM), full metallic bottom for flux-free soldering, and compatibility with EIA-481 tape-and-reel automated assembly.
Technical Context
This Zener diode operates with a nominal breakdown voltage of 22 V at 17 mA (IZT), exhibiting low knee impedance (650 Ω at 0.25 mA) and tight regulation under varying load conditions. Its DO-216 package integrates a metallic tab (TAB 1) as cathode and primary thermal path, enabling 3.0 W dissipation when tab temperature is held at 60°C.
The device meets industrial temperature requirements (–55°C to +150°C junction/storage), supports automatic insertion, and delivers stable clamping performance with <1.2 V forward voltage at 200 mA - critical for bidirectional protection and reference stability in compact DC-DC and LDO feedback paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 22 V ±5% at 17 mA - defines precise clamping threshold for overvoltage protection |
| Power Dissipation | 3.0 W with TAB 1 at 60°C - enables high-energy transient suppression in space-constrained layouts |
| Dynamic Impedance (ZZT) | 17.5 Ω at IZT = 17 mA - ensures minimal voltage shift under load current variation |
| Reverse Leakage (IR) | ≤1 µA at VR = 16.7 V - guarantees low standby power loss in always-on reference circuits |
| Thermal Resistance | 30°C/W junction-to-TAB1 - allows direct thermal coupling to PCB copper for passive cooling |
| ESD Rating | >16 kV per HBM - provides robust handling without external protection during board assembly |
| Forward Voltage | 1.2 V at IF = 200 mA - supports use in dual-direction clamping or series reference configurations |
Pinout & Package
Package: DO-216 (Powermite®), molded surface-mount with full metallic bottom and integral heat-sink locking tab; cathode designated by TAB 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary thermal path and electrical cathode connection; must be soldered to thermal pad for rated 3.0 W operation |
| Lead 2 | Anode | Standard anode terminal; electrically isolated from TAB 1; used for circuit connection and mechanical anchoring |
Key Features
| Feature | Design Value |
|---|---|
| Full metallic bottom | Eliminates solder flux entrapment during reflow, improving long-term reliability and void-free solder joints |
| Integral heat-sink locking tab | Provides mechanical retention and direct thermal conduction path from junction to PCB copper |
| ESD robustness | >16 kV HBM rating reduces need for external ESD protection in front-end interface stages |
| Automated assembly compatibility | EIA-481 tape-and-reel packaging (7″/3,000 pcs) supports high-speed pick-and-place without orientation issues |
Applications
| Switch-Mode Power Supply Feedback | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Stabilizing output voltage in isolated flyback converters via optocoupler-coupled feedback loop. IC Role / Device Role / Timing Role: Precision 22 V Zener reference establishing regulated feedback threshold for TL431 or similar shunt regulators. Use Value: Tight 5% tolerance and low ZZT ensure consistent regulation across line/load transients without trimming. | Use Scenario: Protecting analog front-end inputs of 24 V industrial sensors against EFT and surge events. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor clamping both positive and negative excursions relative to ground. Use Value: 3.0 W peak power rating and 30°C/W thermal resistance enable repeated 1 kV/50 Ω surge absorption without degradation. |
| Programmable Logic Controller I/O Protection | Automotive Body Control Module Reference |
Use Scenario: Safeguarding digital input channels exposed to 24 V field wiring in PLC backplanes. IC Role / Device Role / Timing Role: Low-leakage (≤1 µA) Zener clamp limiting input voltage to 22 V while preserving signal integrity. Use Value: Minimal reverse current avoids loading of high-impedance input dividers and maintains noise margin. | Use Scenario: Providing stable 22 V reference for microcontroller reset supervision or CAN transceiver biasing. IC Role / Device Role / Timing Role: Temperature-stable voltage reference operating across –40°C to +125°C ambient with no derating below 150°C junction. Use Value: Guaranteed operation up to +150°C junction enables placement near hot components like power MOSFETs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMCJ22A | TVS diode (not Zener); 22 V standoff, 300 W peak pulse power, higher clamping voltage (35.5 V) | Designed for surge suppression only; not suitable for precision DC regulation | Select only for transient-only protection where DC accuracy is irrelevant |
| BZX84-C22 | SOT-23 package; 22 V ±5%, 300 mW power, 50 Ω dynamic impedance, no metallic tab | Limited thermal capacity; unsuitable for sustained >100 mA clamping or high-reliability industrial environments | Choose for low-cost, low-power consumer applications where board space is critical but power handling is secondary |
Compared with SMCJ22A and BZX84-C22, the 1PMT5933A/TR7 uniquely combines 3.0 W continuous dissipation, DO-216 thermal design, and Zener-specific regulation accuracy - making it the only option among the three qualified for precision voltage reference and high-duty-cycle clamping in industrial power systems.
Availability
1PMT5933A/TR7 is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial sensor interfaces, programmable logic controller I/O protection, and automotive body control modules requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for 1PMT5933A/TR7 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
Microsemi (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability analog, mixed-signal, and radiation-hardened components for aerospace, defense, and industrial markets.
The Powermite® Zener diode product line was engineered for ruggedized surface-mount voltage regulation and transient suppression in space-constrained, thermally demanding environments - particularly where flux-free assembly and high thermal conductivity are mandatory.
FAQ
What is the Zener voltage tolerance for 1PMT5933A/TR7?
The 1PMT5933A/TR7 has a standard Zener voltage tolerance of ±5% at 22 V nominal, measured at 17 mA test current and 30°C tab temperature. Tighter tolerances (±2% and ±1%) are available with suffixes C and D respectively, but the /TR7 variant ships with the standard ±5% grade unless otherwise specified.
Can 1PMT5933A/TR7 be used in place of a through-hole 1N5247B?
No - the 1PMT5933A/TR7 is not a drop-in replacement for the 1N5247B. While both are 22 V Zeners, the 1PMT5933A/TR7 uses a DO-216 surface-mount package with metallic tab thermal path and 3.0 W rating, whereas the 1N5247B is a DO-35 through-hole device rated at 500 mW. PCB layout, thermal design, and assembly process differ fundamentally.
What is the maximum continuous reverse current the 1PMT5933A/TR7 can handle?
The 1PMT5933A/TR7 supports a maximum Zener current (IZM) of 112.2 mA under 3.0 W dissipation conditions, calculated from its 22 V nominal voltage and thermal limits. This assumes TAB 1 is maintained at ≤60°C; actual usable current decreases with rising tab temperature due to thermal derating.
Does the 1PMT5933A/TR7 require a heatsink for 3.0 W operation?
No discrete heatsink is required - the 1PMT5933A/TR7's Powermite® package incorporates TAB 1 as an integral metallic heat sink. Full 3.0 W dissipation is achieved when TAB 1 is soldered to ≥1 cm² of 2 oz copper on the PCB, leveraging the specified 30°C/W junction-to-tab thermal resistance.
Is 1PMT5933A/TR7 compliant with RoHS and REACH?
Yes - the 1PMT5933A/TR7 is RoHS-compliant and REACH-conformant. Microsemi's Powermite® product family, including the 1PMT5933A/TR7, meets lead-free reflow requirements (JEDEC J-STD-020) and carries no SVHC substances above threshold per current EU regulations.
1PMT5933A/TR7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-216AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 22 V
- Tolerance:
- ±10%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 17.5 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 16.7 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 200 mA
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-216AA
1PMT5933A/TR7 FAQ
1.How can I place an order for 1PMT5933A/TR7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5933A/TR7 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 1PMT5933A/TR7 reliable?
The price and inventory of 1PMT5933A/TR7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5933A/TR7 is usually 5 days.
3.What payment methods are accepted for 1PMT5933A/TR7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5933A/TR7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5933A/TR7?
1PMT5933A/TR7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5933A/TR7 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 1PMT5933A/TR7?
For technical support, including 1PMT5933A/TR7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5933A/TR7 requirements.
6.How does Aetrix verify that 1PMT5933A/TR7 is sourced from the original manufacturer or authorized distributors?
All 1PMT5933A/TR7 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 1PMT5933A/TR7 meets industry standards.
7.What is the process for return or replacement of 1PMT5933A/TR7?
All 1PMT5933A/TR7 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5933A/TR7, 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 1PMT5933A/TR7 part is unused and in its original packaging.
Return procedure for 1PMT5933A/TR7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5933A/TR7 Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
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 …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
