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Toshiba Semiconductor and Storage CRZ24(TE85L,Q,M)
- Part No.:
- CRZ24(TE85L,Q,M)
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
CRZ24(TE85L,Q,M).pdf
- Description:
- DIODE ZENER 24V 700MW SFLAT
- Quantity:
- Payment:
- Shipping:
Inventory:5,840
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Product details
Overview
CRZ24(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 24.0 V (min 21.6 V, max 26.4 V) at 10 mA test current, with 30 Ω typical Zener impedance, 0.7 W average 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 CRZ24(TE85L,Q,M) datasheet, CRZ24(TE85L,Q,M) pinout, CRZ24(TE85L,Q,M) application, or CRZ24(TE85L,Q,M) equivalent, key selection criteria include verified Zener voltage tolerance, thermal derating behavior under ambient temperature variation, reverse leakage at rated VR, forward voltage drop at 0.2 A, and compatibility with S-FLAT™ land pattern dimensions (2.8 × 1.2 mm).
Technical Context
The CRZ24(TE85L,Q,M) functions as a precision voltage reference and transient suppressor in low-power DC rails. Its 24 V nominal Zener voltage is stabilized by epitaxial construction, with a temperature coefficient of +17.0 mV/°C (typ.) and ≤32 Ω maximum dynamic impedance at 10 mA, enabling stable regulation under moderate load variation.
Designed for surface-mount assembly in space-constrained systems, it uses Toshiba's proprietary S-FLAT™ package (JEITA 3-2A1S), featuring a cathode-marked anode-cathode terminal configuration and 0.013 g typical weight. Absolute maximum ratings mandate derating above 25 °C ambient to maintain junction temperature ≤120 °C for high-reliability operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 21.6–26.4 V at IZ = 10 mA - defines regulated output voltage window under standard test conditions |
| Zener Impedance rd | ≤30 Ω typ. at IZ = 10 mA - determines voltage deviation under load current changes |
| Avg. Power Dissipation P | 0.7 W at Ta = 25 °C - sets maximum continuous DC power handling before thermal derating applies |
| Junction Temp Range Tj | −40 to +150 °C - specifies operational silicon temperature limits; reliability design requires Tj ≤120 °C |
| Reverse Leakage IR | ≤10 μA at VR = 17.0 V - quantifies off-state conduction loss in regulation or clamping mode |
| Forward Voltage VF | ≤1.0 V at IF = 0.2 A - indicates low-loss conduction when used bidirectionally or in series protection |
| Temp Coefficient αT | +17.0 mV/°C typ. - enables prediction of VZ drift across operating temperature range |
Pinout & Package
Toshiba S-FLAT™ package (JEITA 3-2A1S): surface-mount, 2-terminal, cathode-marked, dimensions 2.8 × 1.2 × 1.2 mm (L × W × H), weight 0.013 g (typ.). Land pattern per Toshiba reference drawing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to lower-potential node in Zener mode | Must be routed to ground or return path in shunt regulator configurations |
| Cathode | Current exit terminal in forward bias; connected to higher-potential node in Zener mode | Marked side on package; ties to regulated rail or surge node in clamp applications |
Key Features
| Feature | Design Value |
|---|---|
| Epitaxial Zener structure | Enables tight VZ tolerance (±10%) and stable αT vs. diffused alternatives |
| S-FLAT™ surface-mount package | Reduces PCB footprint to 3.36 mm² while supporting automated reflow assembly |
| Low Zener impedance | 30 Ω typical ensures <100 mV output shift for ±1 mA load change in feedback networks |
| High junction temperature rating | 150 °C max Tj allows operation in thermally dense environments with proper board-level derating |
| Controlled reverse leakage | 10 μA max at 17 V supports low-quiescent-current biasing in battery-powered sensors |
Applications
| Power Supply Feedback Regulation | Overvoltage Clamp Protection |
|---|---|
Use Scenario: Stabilizing output voltage in isolated flyback or buck-derived auxiliary supplies. IC Role / Device Role / Timing Role: Shunt voltage reference in optocoupler feedback loop. Use Value: Maintains ±1% output accuracy across line/load/temperature with 30 Ω rd and +17 mV/°C αT. | Use Scenario: Protecting microcontroller I/O pins from ESD or inductive kickback transients. IC Role / Device Role / Timing Role: Low-capacitance voltage clamp referenced to ground. Use Value: Limits voltage to ≤26.4 V during surges while drawing <10 μA at 17 V standby. |
| Reference Voltage Source | Surge Absorber in Telecom Line Interface |
Use Scenario: Providing stable 24 V reference for ADC biasing or DAC calibration in industrial DAQ modules. IC Role / Device Role / Timing Role: Precision DC voltage source with minimal self-heating. Use Value: Delivers 24.0 V ±0.6 V at 10 mA with <0.5 °C/W effective thermal resistance on 6 mm² copper pad. | Use Scenario: Absorbing lightning-induced surges on 24 V DC telecom power feeds. IC Role / Device Role / Timing Role: Primary shunt surge limiter upstream of DC-DC converters. Use Value: Handles non-repetitive PRSM up to 40 W (tW = 1 ms) while maintaining 0.7 W steady-state dissipation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C24LT1G | 24 V ±5%, 300 mW PD, SOT-23 package (3.0 × 1.4 mm), 35 Ω rd | Lower power rating limits use to sub-300 mW regulation; smaller footprint but higher thermal resistance | Select when board space is critical and power demand stays below 300 mW |
| MMSZ5242B-TP | 24 V ±5%, 500 mW PD, SOD-123 package (3.7 × 1.6 mm), 30 Ω rd | Higher PD than CRZ24 but larger footprint; same VZ tolerance, slightly lower leakage (5 μA) | Prefer for higher reliability margin where 0.5 W steady-state dissipation suffices |
Compared with BZX84-C24LT1G and MMSZ5242B-TP, the CRZ24(TE85L,Q,M) offers higher 0.7 W power handling in a more compact 2.8 × 1.2 mm S-FLAT™ outline, making it optimal for thermally constrained 24 V rail regulation where sustained dissipation exceeds 500 mW.
Availability
CRZ24(TE85L,Q,M) is available at Aetrix Electronics and suitable for power supply feedback regulation, overvoltage clamp protection, reference voltage sourcing, and telecom surge absorption requiring stable component supply and long-lifecycle support.
Supply support for CRZ24(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 designs and manufactures discrete semiconductors, ICs, and storage solutions with emphasis on efficiency, miniaturization, and reliability for industrial and consumer systems.
The CRZ24(TE85L,Q,M) belongs to Toshiba's CRY62–CRZ39 Zener diode family, engineered specifically for compact, high-stability voltage reference and surge suppression in surface-mount power management circuits.
FAQ
What is the Zener voltage tolerance of CRZ24(TE85L,Q,M) at 10 mA?
The CRZ24(TE85L,Q,M) has a Zener voltage range of 21.6 V (min) to 26.4 V (max) at IZ = 10 mA, corresponding to ±10% tolerance about the nominal 24.0 V value. This is confirmed in the Electrical Characteristics table on page 2 of the official Toshiba CRY62–CRZ39 datasheet. The typical value is 24.0 V, and the specification applies under Ta = 25 °C conditions.
Does CRZ24(TE85L,Q,M) have a specified cathode marking?
Yes, CRZ24(TE85L,Q,M) features a visible cathode mark on the S-FLAT™ package body, consistent with Toshiba's standard polarity identification for Zener diodes. The marking is shown in the "Marking" section (page 3) of the datasheet, and the cathode terminal corresponds to the marked side - essential for correct orientation in shunt regulation or clamping circuits.
What is the maximum non-repetitive peak reverse power (PRSM) for CRZ24(TE85L,Q,M)?
Per the PRSM–tW graph on page 4 of the Toshiba datasheet, CRZ24(TE85L,Q,M) supports up to 40 W non-repetitive peak reverse power for a 1 ms pulse width. This capability is validated under Ta = 25 °C with recommended land pattern (6 mm × 6 mm), and enables robust surge absorption in telecom and industrial power interfaces without device failure.
Is CRZ24(TE85L,Q,M) RoHS compliant?
Yes, CRZ24(TE85L,Q,M) complies with EU RoHS Directive 2011/65/EU. Toshiba confirms RoHS compliance for the CRY62–CRZ39 series in its environmental documentation, and the part carries appropriate marking per JEDEC standards. Full substance declarations and test reports are available upon request through authorized Toshiba distributors or Aetrix Electronics' compliance portal.
What is the thermal resistance (rth(j-a)) of CRZ24(TE85L,Q,M) on a standard PCB?
The transient thermal impedance rth(j-a) of CRZ24(TE85L,Q,M) is approximately 200 °C/W at t = 0.1 s when mounted on a glass-epoxy board with 6 mm × 6 mm solder land (per Figure rth(j-a)–t, page 4). Steady-state rth(j-a) is not specified, but derating guidelines require limiting Tj to ≤120 °C - implying ~170 °C/W effective resistance under continuous 0.7 W operation with adequate copper area.
CRZ24(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):
- 24 V
- Tolerance:
- ±10%
- Power - Max:
- 700 mW
- Impedance (Max) (Zzt):
- 30 Ohms
- Current - Reverse Leakage @ Vr:
- 10 µA @ 17 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)
CRZ24(TE85L,Q,M) FAQ
1.How can I place an order for CRZ24(TE85L,Q,M) through Aetrix?
Please submit a Request for Quotation (RFQ) for CRZ24(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 CRZ24(TE85L,Q,M) reliable?
The price and inventory of CRZ24(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 CRZ24(TE85L,Q,M) is usually 5 days.
3.What payment methods are accepted for CRZ24(TE85L,Q,M)?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CRZ24(TE85L,Q,M) transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CRZ24(TE85L,Q,M)?
CRZ24(TE85L,Q,M) orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CRZ24(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 CRZ24(TE85L,Q,M)?
For technical support, including CRZ24(TE85L,Q,M) datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CRZ24(TE85L,Q,M) requirements.
6.How does Aetrix verify that CRZ24(TE85L,Q,M) is sourced from the original manufacturer or authorized distributors?
All CRZ24(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 CRZ24(TE85L,Q,M) meets industry standards.
7.What is the process for return or replacement of CRZ24(TE85L,Q,M)?
All CRZ24(TE85L,Q,M) units undergo pre-shipment inspection (PSI). If there is an issue with CRZ24(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 CRZ24(TE85L,Q,M) part is unused and in its original packaging.
Return procedure for CRZ24(TE85L,Q,M):
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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