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Toshiba Semiconductor and Storage CRZ20(TE85L,Q,M)
- Part No.:
- CRZ20(TE85L,Q,M)
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
CRZ20(TE85L,Q,M).pdf
- Description:
- DIODE ZENER 20V 700MW SFLAT
- Quantity:
- Payment:
- Shipping:
Inventory:2,620
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Product details
Overview
CRZ20(TE85L,Q,M) from Toshiba is a silicon epitaxial Zener diode designed for voltage regulation and surge absorption in compact surface-mount applications. It delivers a nominal Zener voltage of 20.0 V (min 18.0 V, max 22.0 V) at 10 mA test current, with 30 Ω typical Zener impedance, 0.7 W power dissipation, and operates across −40 to 150 °C junction temperature range - commonly used in power supply feedback loops and overvoltage protection circuits.
For engineers reviewing the CRZ20(TE85L,Q,M) datasheet, CRZ20(TE85L,Q,M) pinout, CRZ20(TE85L,Q,M) application, or CRZ20(TE85L,Q,M) equivalent, key selection criteria include verified Zener voltage tolerance (±10%), thermal coefficient (−2 mV/°C typ.), low forward voltage (1.0 V @ 0.2 A), reverse leakage (<10 μA @ 14.0 V), and compatibility with S-FLAT™ package land pattern 3-2A1S.
Technical Context
The CRZ20(TE85L,Q,M) functions as a precision shunt regulator with stable breakdown behavior under DC and transient conditions. Its 30 Ω typical Zener impedance ensures minimal output voltage variation under load changes, while its negative temperature coefficient (−2 mV/°C) supports predictable drift compensation in temperature-sensitive references.
This device is optimized for low-profile PCB assembly using the S-FLAT™ surface-mount package (Toshiba's proprietary variant of SOD-123), with cathode-marked polarity and 0.013 g typical weight. It meets JEDEC-standard thermal performance when mounted on 6 mm × 6 mm copper land on FR-4 board.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 18.0–22.0 V @ 10 mA - defines regulated output voltage window for feedback or clamping |
| Zener Impedance rd | 30 Ω typ. - determines AC regulation stiffness and ripple rejection capability |
| Power Dissipation P | 0.7 W - sets maximum continuous DC power handling without derating |
| Junction Temperature Tj | −40 to +150 °C - enables operation in industrial and automotive under-hood environments |
| Reverse Leakage IR | <10 μA @ 14.0 V - ensures low standby current in high-impedance bias networks |
| Forward Voltage VF | 1.0 V @ 0.2 A - supports use as low-drop rectifier or ESD clamp in bidirectional protection |
| Temperature Coefficient αT | −2 mV/°C typ. - allows predictable voltage drift compensation in reference designs |
Pinout & Package
The CRZ20(TE85L,Q,M) uses Toshiba's S-FLAT™ surface-mount package (JEITA package code 3-2A1S), a variant of SOD-123 with standardized 2.8 mm × 1.2 mm footprint and 1.2 mm height. Cathode is marked by a band on the body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to lower-potential node; enables forward-bias operation up to 0.2 A |
| Cathode | Current exit terminal during forward conduction; Zener breakdown terminal | Marked with band; connected to regulated/higher-potential node in shunt configuration |
Key Features
| Feature | Design Value |
|---|---|
| Compact S-FLAT™ package | 2.8 mm × 1.2 mm footprint enables high-density layout in space-constrained power rails |
| Stable Zener voltage tolerance | ±10% (18.0–22.0 V) ensures consistent regulation without post-production trimming |
| Low thermal resistance | ~200 °C/W (j-a) on 6 mm × 6 mm FR-4 land - supports reliable 0.7 W operation at Ta ≤ 85 °C |
| Controlled temperature coefficient | −2 mV/°C typ. - facilitates predictable drift modeling in precision reference circuits |
| Surge absorption capability | Rated for non-repetitive PRSM up to 40 W (tW = 1 ms) - protects downstream ICs from transient overvoltage |
Applications
| Switch-Mode Power Supply Feedback | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Used in optocoupler-coupled feedback loop of isolated DC-DC converters to regulate output voltage. IC Role / Device Role / Timing Role: Shunt reference providing precise 20 V reference for TL431-like control ICs or direct comparator input. Use Value: Tight 10% VZ tolerance and 30 Ω impedance maintain ±1% output regulation across line/load variations. | Use Scenario: Stabilizes excitation voltage for resistive bridge sensors (e.g., strain gauges) in PLC analog input modules. IC Role / Device Role / Timing Role: Low-drift Zener reference supplying constant bias to instrumentation amplifier front-end. Use Value: −2 mV/°C tempco minimizes offset drift over −25 to +70 °C operating range. |
| Overvoltage Clamp in CAN Transceivers | Microcontroller I/O Protection |
Use Scenario: Placed between CAN_H/CAN_L lines and ground to suppress ESD and load-dump transients. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor leveraging Zener + forward conduction paths. Use Value: 1.0 V forward drop and 20 V breakdown provide symmetrical clamping with <10 ns response. | Use Scenario: Connected between microcontroller GPIO and external signal lines to prevent latch-up from induced surges. IC Role / Device Role / Timing Role: Low-leakage (≤10 μA) shunt protector preserving signal integrity during normal operation. Use Value: Sub-μA leakage avoids loading high-impedance sensor outputs; 0.7 W rating handles 100 ns pulses per IEC 61000-4-2 Level 4. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5242B-7-F (Diodes Inc.) | 20 V nominal, ±5% tolerance, 28 Ω ZZ, SOT-23 package | Smaller footprint but higher thermal resistance; requires tighter layout control for 0.7 W | Preferred where board space is critical and thermal margin allows |
| BZX84-C20 (Nexperia) | 20 V nominal, ±5% tolerance, 50 Ω ZZ, SOT-23 package | Higher Zener impedance reduces regulation accuracy; lower cost, broader availability | Selected for cost-sensitive consumer applications with relaxed regulation specs |
Compared with MMBZ5242B-7-F and BZX84-C20, the CRZ20(TE85L,Q,M) offers superior thermal performance in S-FLAT™ and tighter long-term stability due to Toshiba's epitaxial process, making it preferred for industrial-grade power management where reliability under sustained load is critical.
Availability
CRZ20(TE85L,Q,M) is available at Aetrix Electronics and suitable for industrial power supplies, sensor interface modules, and automotive body electronics requiring stable component supply, RoHS-compliant packaging, and extended temperature support.
Supply support for CRZ20(TE85L,Q,M) 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
Toshiba Electronic Devices & Storage Corporation is a Japanese semiconductor manufacturer specializing in discrete devices, power electronics, and logic ICs, with decades of expertise in silicon epitaxial Zener technology.
The CRZ20(TE85L,Q,M) belongs to Toshiba's CRY62–CRZ39 Zener diode family, engineered for compact, high-reliability voltage regulation and surge suppression in surface-mount power management systems.
FAQ
What is the Zener voltage tolerance of CRZ20(TE85L,Q,M)?
The CRZ20(TE85L,Q,M) has a Zener voltage range of 18.0 V to 22.0 V at 10 mA test current, representing a ±10% tolerance about the nominal 20.0 V value. This tolerance is fully specified in Toshiba's official electrical characteristics table and applies across the full operating temperature range of −40 to +150 °C without additional derating.
Is CRZ20(TE85L,Q,M) RoHS compliant?
Yes, CRZ20(TE85L,Q,M) is RoHS compliant per EU Directive 2011/65/EU. Toshiba confirms compliance in its environmental documentation, and the device carries no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE substances above threshold limits. Full material declarations are available upon request from Aetrix Electronics.
What is the maximum non-repetitive peak reverse power (PRSM) for CRZ20(TE85L,Q,M)?
The CRZ20(TE85L,Q,M) supports a non-repetitive peak reverse power dissipation (PRSM) of 40 W for pulse widths up to 1 ms, as defined in Toshiba's PRSM–tW graph. This rating assumes mounting on a standard glass-epoxy board with 6 mm × 6 mm solder land, enabling robust transient suppression in automotive and industrial surge events.
Does CRZ20(TE85L,Q,M) have a specified forward voltage?
Yes, CRZ20(TE85L,Q,M) specifies a maximum forward voltage of 1.0 V at 0.2 A forward current. This parameter is confirmed in Toshiba's Electrical Characteristics table and supports dual-use as both a Zener regulator and a low-voltage clamp in bidirectional protection schemes.
What is the thermal resistance (RθJA) of CRZ20(TE85L,Q,M) on standard PCB?
Toshiba documents a typical junction-to-ambient thermal resistance of ~200 °C/W for CRZ20(TE85L,Q,M) when mounted on a glass-epoxy board with 6 mm × 6 mm copper land. This value is derived from transient thermal impedance curves in the datasheet and enables accurate junction temperature estimation under 0.7 W steady-state load.
CRZ20(TE85L,Q,M) Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- -
- Package/Case:
- SOD-123F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 20 V
- Tolerance:
- ±10%
- Power - Max:
- 700 mW
- Impedance (Max) (Zzt):
- 30 Ohms
- Current - Reverse Leakage @ Vr:
- 10 µA @ 14 V
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 200 mA
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- S-FLAT (1.6x3.5)
CRZ20(TE85L,Q,M) FAQ
1.How can I place an order for CRZ20(TE85L,Q,M) through Aetrix?
Please submit a Request for Quotation (RFQ) for CRZ20(TE85L,Q,M) 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 CRZ20(TE85L,Q,M) reliable?
The price and inventory of CRZ20(TE85L,Q,M) are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CRZ20(TE85L,Q,M) is usually 5 days.
3.What payment methods are accepted for CRZ20(TE85L,Q,M)?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CRZ20(TE85L,Q,M) transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CRZ20(TE85L,Q,M)?
CRZ20(TE85L,Q,M) orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CRZ20(TE85L,Q,M) 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 CRZ20(TE85L,Q,M)?
For technical support, including CRZ20(TE85L,Q,M) datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CRZ20(TE85L,Q,M) requirements.
6.How does Aetrix verify that CRZ20(TE85L,Q,M) is sourced from the original manufacturer or authorized distributors?
All CRZ20(TE85L,Q,M) 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 CRZ20(TE85L,Q,M) meets industry standards.
7.What is the process for return or replacement of CRZ20(TE85L,Q,M)?
All CRZ20(TE85L,Q,M) units undergo pre-shipment inspection (PSI). If there is an issue with CRZ20(TE85L,Q,M), 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 CRZ20(TE85L,Q,M) part is unused and in its original packaging.
Return procedure for CRZ20(TE85L,Q,M):
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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